72 files changed, 432 insertions, 261 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index 31a046213274..6a6e4ac72287 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9231,6 +9231,7 @@ F:	include/media/videobuf2-*
 
 VIRTIO CONSOLE DRIVER
 M:      Amit Shah <amit.shah@redhat.com>
+L:      virtio-dev@lists.oasis-open.org
 L:      virtualization@lists.linux-foundation.org
 S:      Maintained
 F:      drivers/char/virtio_console.c
@@ -9240,6 +9241,7 @@ F:	include/uapi/linux/virtio_console.h
 VIRTIO CORE, NET AND BLOCK DRIVERS
 M:      Rusty Russell <rusty@rustcorp.com.au>
 M:      "Michael S. Tsirkin" <mst@redhat.com>
+L:      virtio-dev@lists.oasis-open.org
 L:      virtualization@lists.linux-foundation.org
 S:      Maintained
 F:      drivers/virtio/
@@ -9252,6 +9254,7 @@ F:	include/uapi/linux/virtio_*.h
 VIRTIO HOST (VHOST)
 M:      "Michael S. Tsirkin" <mst@redhat.com>
 L:      kvm@vger.kernel.org
+L:      virtio-dev@lists.oasis-open.org
 L:      virtualization@lists.linux-foundation.org
 L:      netdev@vger.kernel.org
 S:      Maintained
diff --git a/arch/arm/kernel/devtree.c b/arch/arm/kernel/devtree.c
index 739c3dfc1da2..34d5fd585bbb 100644
--- a/arch/arm/kernel/devtree.c
+++ b/arch/arm/kernel/devtree.c
@@ -171,7 +171,7 @@ void __init arm_dt_init_cpu_maps(void)
 
 bool arch_match_cpu_phys_id(int cpu, u64 phys_id)
 {
-        return (phys_id & MPIDR_HWID_BITMASK) == cpu_logical_map(cpu);
+        return phys_id == cpu_logical_map(cpu);
 }
 
 static const void * __init arch_get_next_mach(const char *const **match)
diff --git a/arch/arm/kernel/perf_event_cpu.c b/arch/arm/kernel/perf_event_cpu.c
index d85055cd24ba..20d553c9f5e2 100644
--- a/arch/arm/kernel/perf_event_cpu.c
+++ b/arch/arm/kernel/perf_event_cpu.c
@@ -254,7 +254,7 @@ static int probe_current_pmu(struct arm_pmu *pmu)
 static int cpu_pmu_device_probe(struct platform_device *pdev)
 {
         const struct of_device_id *of_id;
-        int (*init_fn)(struct arm_pmu *);
+        const int (*init_fn)(struct arm_pmu *);
         struct device_node *node = pdev->dev.of_node;
         struct arm_pmu *pmu;
         int ret = -ENODEV;
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 6eda3bf85c52..4636d56af2db 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -431,9 +431,10 @@ asmlinkage void __exception do_undefinstr(struct pt_regs *regs)
                         instr2 = __mem_to_opcode_thumb16(instr2);
                         instr = __opcode_thumb32_compose(instr, instr2);
                 }
-        } else if (get_user(instr, (u32 __user *)pc)) {
+        } else {
+                if (get_user(instr, (u32 __user *)pc))
+                        goto die_sig;
                 instr = __mem_to_opcode_arm(instr);
-                goto die_sig;
         }
 
         if (call_undef_hook(regs, instr) == 0)
diff --git a/arch/arm/mach-highbank/highbank.c b/arch/arm/mach-highbank/highbank.c
index bd3bf66ce344..c7de89b263dd 100644
--- a/arch/arm/mach-highbank/highbank.c
+++ b/arch/arm/mach-highbank/highbank.c
@@ -53,6 +53,7 @@ static void __init highbank_scu_map_io(void)
 
 static void highbank_l2x0_disable(void)
 {
+        outer_flush_all();
         /* Disable PL310 L2 Cache controller */
         highbank_smc1(0x102, 0x0);
 }
diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c
index b39efd46abf9..c0ab9b26be3d 100644
--- a/arch/arm/mach-omap2/omap4-common.c
+++ b/arch/arm/mach-omap2/omap4-common.c
@@ -162,6 +162,7 @@ void __iomem *omap4_get_l2cache_base(void)
 
 static void omap4_l2x0_disable(void)
 {
+        outer_flush_all();
         /* Disable PL310 L2 Cache controller */
         omap_smc1(0x102, 0x0);
 }
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 1f7b19a47060..3e8f106ee5fe 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -229,7 +229,7 @@ void __init setup_dma_zone(const struct machine_desc *mdesc)
 #ifdef CONFIG_ZONE_DMA
         if (mdesc->dma_zone_size) {
                 arm_dma_zone_size = mdesc->dma_zone_size;
-                arm_dma_limit = __pv_phys_offset + arm_dma_zone_size - 1;
+                arm_dma_limit = PHYS_OFFSET + arm_dma_zone_size - 1;
         } else
                 arm_dma_limit = 0xffffffff;
         arm_dma_pfn_limit = arm_dma_limit >> PAGE_SHIFT;
diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c
index 9ed155ad0f97..271b5e971568 100644
--- a/arch/arm/net/bpf_jit_32.c
+++ b/arch/arm/net/bpf_jit_32.c
@@ -641,10 +641,10 @@ load_ind:
                         emit(ARM_MUL(r_A, r_A, r_X), ctx);
                         break;
                 case BPF_S_ALU_DIV_K:
-                        /* current k == reciprocal_value(userspace k) */
+                        if (k == 1)
+                                break;
                         emit_mov_i(r_scratch, k, ctx);
-                        /* A = top 32 bits of the product */
-                        emit(ARM_UMULL(r_scratch, r_A, r_A, r_scratch), ctx);
+                        emit_udiv(r_A, r_A, r_scratch, ctx);
                         break;
                 case BPF_S_ALU_DIV_X:
                         update_on_xread(ctx);
diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h
index 572769727227..4cc813eddacb 100644
--- a/arch/arm64/include/asm/io.h
+++ b/arch/arm64/include/asm/io.h
@@ -229,7 +229,7 @@ extern void __iomem *__ioremap(phys_addr_t phys_addr, size_t size, pgprot_t prot
 extern void __iounmap(volatile void __iomem *addr);
 extern void __iomem *ioremap_cache(phys_addr_t phys_addr, size_t size);
 
-#define PROT_DEFAULT            (pgprot_default | PTE_DIRTY)
+#define PROT_DEFAULT            (PTE_TYPE_PAGE | PTE_AF | PTE_DIRTY)
 #define PROT_DEVICE_nGnRE       (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_ATTRINDX(MT_DEVICE_nGnRE))
 #define PROT_NORMAL_NC          (PROT_DEFAULT | PTE_ATTRINDX(MT_NORMAL_NC))
 #define PROT_NORMAL             (PROT_DEFAULT | PTE_ATTRINDX(MT_NORMAL))
diff --git a/arch/mips/include/asm/cacheops.h b/arch/mips/include/asm/cacheops.h
index c75025f27c20..06b9bc7ea14b 100644
--- a/arch/mips/include/asm/cacheops.h
+++ b/arch/mips/include/asm/cacheops.h
@@ -83,6 +83,6 @@
 /*
  * Loongson2-specific cacheops
  */
-#define Hit_Invalidate_I_Loongson23     0x00
+#define Hit_Invalidate_I_Loongson2      0x00
 
 #endif  /* __ASM_CACHEOPS_H */
diff --git a/arch/mips/include/asm/r4kcache.h b/arch/mips/include/asm/r4kcache.h
index 34d1a1917125..c84caddb8bde 100644
--- a/arch/mips/include/asm/r4kcache.h
+++ b/arch/mips/include/asm/r4kcache.h
@@ -165,7 +165,7 @@ static inline void flush_icache_line(unsigned long addr)
         __iflush_prologue
         switch (boot_cpu_type()) {
         case CPU_LOONGSON2:
-                cache_op(Hit_Invalidate_I_Loongson23, addr);
+                cache_op(Hit_Invalidate_I_Loongson2, addr);
                 break;
 
         default:
@@ -219,7 +219,7 @@ static inline void protected_flush_icache_line(unsigned long addr)
 {
         switch (boot_cpu_type()) {
         case CPU_LOONGSON2:
-                protected_cache_op(Hit_Invalidate_I_Loongson23, addr);
+                protected_cache_op(Hit_Invalidate_I_Loongson2, addr);
                 break;
 
         default:
@@ -357,8 +357,8 @@ static inline void invalidate_tcache_page(unsigned long addr)
                   "i" (op));
 
 /* build blast_xxx, blast_xxx_page, blast_xxx_page_indexed */
-#define __BUILD_BLAST_CACHE(pfx, desc, indexop, hitop, lsize) \
-static inline void blast_##pfx##cache##lsize(void)                      \
+#define __BUILD_BLAST_CACHE(pfx, desc, indexop, hitop, lsize, extra)    \
+static inline void extra##blast_##pfx##cache##lsize(void)               \
 {                                                                       \
         unsigned long start = INDEX_BASE;                               \
         unsigned long end = start + current_cpu_data.desc.waysize;      \
@@ -376,7 +376,7 @@ static inline void blast_##pfx##cache##lsize(void)			\
         __##pfx##flush_epilogue                                         \
 }                                                                       \
                                                                         \
-static inline void blast_##pfx##cache##lsize##_page(unsigned long page) \
+static inline void extra##blast_##pfx##cache##lsize##_page(unsigned long page) \
 {                                                                       \
         unsigned long start = page;                                     \
         unsigned long end = page + PAGE_SIZE;                           \
@@ -391,7 +391,7 @@ static inline void blast_##pfx##cache##lsize##_page(unsigned long page) \
         __##pfx##flush_epilogue                                         \
 }                                                                       \
                                                                         \
-static inline void blast_##pfx##cache##lsize##_page_indexed(unsigned long page) \
+static inline void extra##blast_##pfx##cache##lsize##_page_indexed(unsigned long page) \
 {                                                                       \
         unsigned long indexmask = current_cpu_data.desc.waysize - 1;    \
         unsigned long start = INDEX_BASE + (page & indexmask);          \
@@ -410,23 +410,24 @@ static inline void blast_##pfx##cache##lsize##_page_indexed(unsigned long page)
         __##pfx##flush_epilogue                                         \
 }
 
-__BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 16)
-__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 16)
-__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 16)
-__BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 32)
-__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 32)
-__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 32)
-__BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 64)
-__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 64)
-__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 64)
-__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 128)
-
-__BUILD_BLAST_CACHE(inv_d, dcache, Index_Writeback_Inv_D, Hit_Invalidate_D, 16)
-__BUILD_BLAST_CACHE(inv_d, dcache, Index_Writeback_Inv_D, Hit_Invalidate_D, 32)
-__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 16)
-__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 32)
-__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 64)
-__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 128)
+__BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 16, )
+__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 16, )
+__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 16, )
+__BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 32, )
+__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 32, )
+__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I_Loongson2, 32, loongson2_)
+__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 32, )
+__BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 64, )
+__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 64, )
+__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 64, )
+__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 128, )
+
+__BUILD_BLAST_CACHE(inv_d, dcache, Index_Writeback_Inv_D, Hit_Invalidate_D, 16, )
+__BUILD_BLAST_CACHE(inv_d, dcache, Index_Writeback_Inv_D, Hit_Invalidate_D, 32, )
+__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 16, )
+__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 32, )
+__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 64, )
+__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 128, )
 
 /* build blast_xxx_range, protected_blast_xxx_range */
 #define __BUILD_BLAST_CACHE_RANGE(pfx, desc, hitop, prot, extra)        \
@@ -452,8 +453,8 @@ static inline void prot##extra##blast_##pfx##cache##_range(unsigned long start,
 __BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, protected_, )
 __BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, protected_, )
 __BUILD_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I, protected_, )
-__BUILD_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I_Loongson23, \
-        protected_, loongson23_)
+__BUILD_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I_Loongson2, \
+        protected_, loongson2_)
 __BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, , )
 __BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, , )
 /* blast_inv_dcache_range */
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 62ffd20ea869..49e572d879e1 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -237,6 +237,8 @@ static void r4k_blast_icache_page_setup(void)
                 r4k_blast_icache_page = (void *)cache_noop;
         else if (ic_lsize == 16)
                 r4k_blast_icache_page = blast_icache16_page;
+        else if (ic_lsize == 32 && current_cpu_type() == CPU_LOONGSON2)
+                r4k_blast_icache_page = loongson2_blast_icache32_page;
         else if (ic_lsize == 32)
                 r4k_blast_icache_page = blast_icache32_page;
         else if (ic_lsize == 64)
@@ -261,6 +263,9 @@ static void r4k_blast_icache_page_indexed_setup(void)
                 else if (TX49XX_ICACHE_INDEX_INV_WAR)
                         r4k_blast_icache_page_indexed =
                                 tx49_blast_icache32_page_indexed;
+                else if (current_cpu_type() == CPU_LOONGSON2)
+                        r4k_blast_icache_page_indexed =
+                                loongson2_blast_icache32_page_indexed;
                 else
                         r4k_blast_icache_page_indexed =
                                 blast_icache32_page_indexed;
@@ -284,6 +289,8 @@ static void r4k_blast_icache_setup(void)
                         r4k_blast_icache = blast_r4600_v1_icache32;
                 else if (TX49XX_ICACHE_INDEX_INV_WAR)
                         r4k_blast_icache = tx49_blast_icache32;
+                else if (current_cpu_type() == CPU_LOONGSON2)
+                        r4k_blast_icache = loongson2_blast_icache32;
                 else
                         r4k_blast_icache = blast_icache32;
         } else if (ic_lsize == 64)
@@ -580,11 +587,11 @@ static inline void local_r4k_flush_icache_range(unsigned long start, unsigned lo
         else {
                 switch (boot_cpu_type()) {
                 case CPU_LOONGSON2:
-                        protected_blast_icache_range(start, end);
+                        protected_loongson2_blast_icache_range(start, end);
                         break;
 
                 default:
-                        protected_loongson23_blast_icache_range(start, end);
+                        protected_blast_icache_range(start, end);
                         break;
                 }
         }
diff --git a/arch/parisc/include/uapi/asm/socket.h b/arch/parisc/include/uapi/asm/socket.h
index f33113a6141e..70b3674dac4e 100644
--- a/arch/parisc/include/uapi/asm/socket.h
+++ b/arch/parisc/include/uapi/asm/socket.h
@@ -75,6 +75,6 @@
 
 #define SO_BUSY_POLL            0x4027
 
-#define SO_MAX_PACING_RATE      0x4048
+#define SO_MAX_PACING_RATE      0x4028
 
 #endif /* _UAPI_ASM_SOCKET_H */
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index cb64a6e1dc51..078145acf7fb 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -1986,19 +1986,23 @@ static void __init prom_init_stdout(void)
         /* Get the full OF pathname of the stdout device */
         memset(path, 0, 256);
         call_prom("instance-to-path", 3, 1, prom.stdout, path, 255);
-        stdout_node = call_prom("instance-to-package", 1, 1, prom.stdout);
-        val = cpu_to_be32(stdout_node);
-        prom_setprop(prom.chosen, "/chosen", "linux,stdout-package",
-                     &val, sizeof(val));
         prom_printf("OF stdout device is: %s\n", of_stdout_device);
         prom_setprop(prom.chosen, "/chosen", "linux,stdout-path",
                      path, strlen(path) + 1);
 
-        /* If it's a display, note it */
-        memset(type, 0, sizeof(type));
-        prom_getprop(stdout_node, "device_type", type, sizeof(type));
-        if (strcmp(type, "display") == 0)
-                prom_setprop(stdout_node, path, "linux,boot-display", NULL, 0);
+        /* instance-to-package fails on PA-Semi */
+        stdout_node = call_prom("instance-to-package", 1, 1, prom.stdout);
+        if (stdout_node != PROM_ERROR) {
+                val = cpu_to_be32(stdout_node);
+                prom_setprop(prom.chosen, "/chosen", "linux,stdout-package",
+                             &val, sizeof(val));
+
+                /* If it's a display, note it */
+                memset(type, 0, sizeof(type));
+                prom_getprop(stdout_node, "device_type", type, sizeof(type));
+                if (strcmp(type, "display") == 0)
+                        prom_setprop(stdout_node, path, "linux,boot-display", NULL, 0);
+        }
 }
 
 static int __init prom_find_machine_type(void)
diff --git a/arch/powerpc/net/bpf_jit_comp.c b/arch/powerpc/net/bpf_jit_comp.c
index ac3c2a10dafd..555034f8505e 100644
--- a/arch/powerpc/net/bpf_jit_comp.c
+++ b/arch/powerpc/net/bpf_jit_comp.c
@@ -223,10 +223,11 @@ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image,
                         }
                         PPC_DIVWU(r_A, r_A, r_X);
                         break;
-                case BPF_S_ALU_DIV_K: /* A = reciprocal_divide(A, K); */
+                case BPF_S_ALU_DIV_K: /* A /= K */
+                        if (K == 1)
+                                break;
                         PPC_LI32(r_scratch1, K);
-                        /* Top 32 bits of 64bit result -> A */
-                        PPC_MULHWU(r_A, r_A, r_scratch1);
+                        PPC_DIVWU(r_A, r_A, r_scratch1);
                         break;
                 case BPF_S_ALU_AND_X:
                         ctx->seen |= SEEN_XREG;
diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c
index 16871da37371..708d60e40066 100644
--- a/arch/s390/net/bpf_jit_comp.c
+++ b/arch/s390/net/bpf_jit_comp.c
@@ -368,14 +368,16 @@ static int bpf_jit_insn(struct bpf_jit *jit, struct sock_filter *filter,
                 EMIT4_PCREL(0xa7840000, (jit->ret0_ip - jit->prg));
                 /* lhi %r4,0 */
                 EMIT4(0xa7480000);
-                /* dr %r4,%r12 */
-                EMIT2(0x1d4c);
+                /* dlr %r4,%r12 */
+                EMIT4(0xb997004c);
                 break;
-        case BPF_S_ALU_DIV_K: /* A = reciprocal_divide(A, K) */
-                /* m %r4,<d(K)>(%r13) */
-                EMIT4_DISP(0x5c40d000, EMIT_CONST(K));
-                /* lr %r5,%r4 */
-                EMIT2(0x1854);
+        case BPF_S_ALU_DIV_K: /* A /= K */
+                if (K == 1)
+                        break;
+                /* lhi %r4,0 */
+                EMIT4(0xa7480000);
+                /* dl %r4,<d(K)>(%r13) */
+                EMIT6_DISP(0xe340d000, 0x0097, EMIT_CONST(K));
                 break;
         case BPF_S_ALU_MOD_X: /* A %= X */
                 jit->seen |= SEEN_XREG | SEEN_RET0;
@@ -385,16 +387,21 @@ static int bpf_jit_insn(struct bpf_jit *jit, struct sock_filter *filter,
                 EMIT4_PCREL(0xa7840000, (jit->ret0_ip - jit->prg));
                 /* lhi %r4,0 */
                 EMIT4(0xa7480000);
-                /* dr %r4,%r12 */
-                EMIT2(0x1d4c);
+                /* dlr %r4,%r12 */
+                EMIT4(0xb997004c);
                 /* lr %r5,%r4 */
                 EMIT2(0x1854);
                 break;
         case BPF_S_ALU_MOD_K: /* A %= K */
+                if (K == 1) {
+                        /* lhi %r5,0 */
+                        EMIT4(0xa7580000);
+                        break;
+                }
                 /* lhi %r4,0 */
                 EMIT4(0xa7480000);
-                /* d %r4,<d(K)>(%r13) */
-                EMIT4_DISP(0x5d40d000, EMIT_CONST(K));
+                /* dl %r4,<d(K)>(%r13) */
+                EMIT6_DISP(0xe340d000, 0x0097, EMIT_CONST(K));
                 /* lr %r5,%r4 */
                 EMIT2(0x1854);
                 break;
diff --git a/arch/sparc/net/bpf_jit_comp.c b/arch/sparc/net/bpf_jit_comp.c
index 218b6b23c378..01fe9946d388 100644
--- a/arch/sparc/net/bpf_jit_comp.c
+++ b/arch/sparc/net/bpf_jit_comp.c
@@ -497,9 +497,20 @@ void bpf_jit_compile(struct sk_filter *fp)
                         case BPF_S_ALU_MUL_K:   /* A *= K */
                                 emit_alu_K(MUL, K);
                                 break;
-                        case BPF_S_ALU_DIV_K:   /* A /= K */
-                                emit_alu_K(MUL, K);
-                                emit_read_y(r_A);
+                        case BPF_S_ALU_DIV_K:   /* A /= K with K != 0*/
+                                if (K == 1)
+                                        break;
+                                emit_write_y(G0);
+#ifdef CONFIG_SPARC32
+                                /* The Sparc v8 architecture requires
+                                 * three instructions between a %y
+                                 * register write and the first use.
+                                 */
+                                emit_nop();
+                                emit_nop();
+                                emit_nop();
+#endif
+                                emit_alu_K(DIV, K);
                                 break;
                         case BPF_S_ALU_DIV_X:   /* A /= X; */
                                 emit_cmpi(r_X, 0);
diff --git a/arch/x86/include/asm/fpu-internal.h b/arch/x86/include/asm/fpu-internal.h
index c49a613c6452..cea1c76d49bf 100644
--- a/arch/x86/include/asm/fpu-internal.h
+++ b/arch/x86/include/asm/fpu-internal.h
@@ -293,12 +293,13 @@ static inline int restore_fpu_checking(struct task_struct *tsk)
         /* AMD K7/K8 CPUs don't save/restore FDP/FIP/FOP unless an exception
            is pending.  Clear the x87 state here by setting it to fixed
            values. "m" is a random variable that should be in L1 */
-        alternative_input(
-                ASM_NOP8 ASM_NOP2,
-                "emms\n\t"              /* clear stack tags */
-                "fildl %P[addr]",       /* set F?P to defined value */
-                X86_FEATURE_FXSAVE_LEAK,
-                [addr] "m" (tsk->thread.fpu.has_fpu));
+        if (unlikely(static_cpu_has(X86_FEATURE_FXSAVE_LEAK))) {
+                asm volatile(
+                        "fnclex\n\t"
+                        "emms\n\t"
+                        "fildl %P[addr]"        /* set F?P to defined value */
+                        : : [addr] "m" (tsk->thread.fpu.has_fpu));
+        }
 
         return fpu_restore_checking(&tsk->thread.fpu);
 }
diff --git a/arch/x86/kernel/cpu/perf_event_amd_ibs.c b/arch/x86/kernel/cpu/perf_event_amd_ibs.c
index e09f0bfb7b8f..4b8e4d3cd6ea 100644
--- a/arch/x86/kernel/cpu/perf_event_amd_ibs.c
+++ b/arch/x86/kernel/cpu/perf_event_amd_ibs.c
@@ -10,6 +10,7 @@
 #include <linux/module.h>
 #include <linux/pci.h>
 #include <linux/ptrace.h>
+#include <linux/syscore_ops.h>
 
 #include <asm/apic.h>
 
@@ -816,6 +817,18 @@ out:
         return ret;
 }
 
+static void ibs_eilvt_setup(void)
+{
+        /*
+         * Force LVT offset assignment for family 10h: The offsets are
+         * not assigned by the BIOS for this family, so the OS is
+         * responsible for doing it. If the OS assignment fails, fall
+         * back to BIOS settings and try to setup this.
+         */
+        if (boot_cpu_data.x86 == 0x10)
+                force_ibs_eilvt_setup();
+}
+
 static inline int get_ibs_lvt_offset(void)
 {
         u64 val;
@@ -851,6 +864,36 @@ static void clear_APIC_ibs(void *dummy)
                 setup_APIC_eilvt(offset, 0, APIC_EILVT_MSG_FIX, 1);
 }
 
+#ifdef CONFIG_PM
+
+static int perf_ibs_suspend(void)
+{
+        clear_APIC_ibs(NULL);
+        return 0;
+}
+
+static void perf_ibs_resume(void)
+{
+        ibs_eilvt_setup();
+        setup_APIC_ibs(NULL);
+}
+
+static struct syscore_ops perf_ibs_syscore_ops = {
+        .resume         = perf_ibs_resume,
+        .suspend        = perf_ibs_suspend,
+};
+
+static void perf_ibs_pm_init(void)
+{
+        register_syscore_ops(&perf_ibs_syscore_ops);
+}
+
+#else
+
+static inline void perf_ibs_pm_init(void) { }
+
+#endif
+
 static int
 perf_ibs_cpu_notifier(struct notifier_block *self, unsigned long action, void *hcpu)
 {
@@ -877,18 +920,12 @@ static __init int amd_ibs_init(void)
         if (!caps)
                 return -ENODEV; /* ibs not supported by the cpu */
 
-        /*
-         * Force LVT offset assignment for family 10h: The offsets are
-         * not assigned by the BIOS for this family, so the OS is
-         * responsible for doing it. If the OS assignment fails, fall
-         * back to BIOS settings and try to setup this.
-         */
-        if (boot_cpu_data.x86 == 0x10)
-                force_ibs_eilvt_setup();
+        ibs_eilvt_setup();
 
         if (!ibs_eilvt_valid())
                 goto out;
 
+        perf_ibs_pm_init();
         get_online_cpus();
         ibs_caps = caps;
         /* make ibs_caps visible to other cpus: */
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index 51e2988c5728..a2a4f4697889 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -1082,7 +1082,7 @@ ENTRY(ftrace_caller)
         pushl $0        /* Pass NULL as regs pointer */
         movl 4*4(%esp), %eax
         movl 0x4(%ebp), %edx
-        leal function_trace_op, %ecx
+        movl function_trace_op, %ecx
         subl $MCOUNT_INSN_SIZE, %eax
 
 .globl ftrace_call
@@ -1140,7 +1140,7 @@ ENTRY(ftrace_regs_caller)
         movl 12*4(%esp), %eax   /* Load ip (1st parameter) */
         subl $MCOUNT_INSN_SIZE, %eax    /* Adjust ip */
         movl 0x4(%ebp), %edx    /* Load parent ip (2nd parameter) */
-        leal function_trace_op, %ecx /* Save ftrace_pos in 3rd parameter */
+        movl function_trace_op, %ecx /* Save ftrace_pos in 3rd parameter */
         pushl %esp              /* Save pt_regs as 4th parameter */
 
 GLOBAL(ftrace_regs_call)
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index e21b0785a85b..1e96c3628bf2 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -88,7 +88,7 @@ END(function_hook)
         MCOUNT_SAVE_FRAME \skip
 
         /* Load the ftrace_ops into the 3rd parameter */
-        leaq function_trace_op, %rdx
+        movq function_trace_op(%rip), %rdx
 
         /* Load ip into the first parameter */
         movq RIP(%rsp), %rdi
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 1673940cf9c3..775702f649ca 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -1355,7 +1355,7 @@ void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64 value)
         vcpu->arch.apic_base = value;
 
         /* update jump label if enable bit changes */
-        if ((vcpu->arch.apic_base ^ value) & MSR_IA32_APICBASE_ENABLE) {
+        if ((old_value ^ value) & MSR_IA32_APICBASE_ENABLE) {
                 if (value & MSR_IA32_APICBASE_ENABLE)
                         static_key_slow_dec_deferred(&apic_hw_disabled);
                 else
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 9ff85bb8dd69..9d591c895803 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -641,6 +641,20 @@ no_context(struct pt_regs *regs, unsigned long error_code,
 
         /* Are we prepared to handle this kernel fault? */
         if (fixup_exception(regs)) {
+                /*
+                 * Any interrupt that takes a fault gets the fixup. This makes
+                 * the below recursive fault logic only apply to a faults from
+                 * task context.
+                 */
+                if (in_interrupt())
+                        return;
+
+                /*
+                 * Per the above we're !in_interrupt(), aka. task context.
+                 *
+                 * In this case we need to make sure we're not recursively
+                 * faulting through the emulate_vsyscall() logic.
+                 */
                 if (current_thread_info()->sig_on_uaccess_error && signal) {
                         tsk->thread.trap_nr = X86_TRAP_PF;
                         tsk->thread.error_code = error_code | PF_USER;
@@ -649,6 +663,10 @@ no_context(struct pt_regs *regs, unsigned long error_code,
                         /* XXX: hwpoison faults will set the wrong code. */
                         force_sig_info_fault(signal, si_code, address, tsk, 0);
                 }
+
+                /*
+                 * Barring that, we can do the fixup and be happy.
+                 */
                 return;
         }
 
diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
index 26328e800869..4ed75dd81d05 100644
--- a/arch/x86/net/bpf_jit_comp.c
+++ b/arch/x86/net/bpf_jit_comp.c
@@ -359,15 +359,21 @@ void bpf_jit_compile(struct sk_filter *fp)
                                 EMIT2(0x89, 0xd0);      /* mov %edx,%eax */
                                 break;
                         case BPF_S_ALU_MOD_K: /* A %= K; */
+                                if (K == 1) {
+                                        CLEAR_A();
+                                        break;
+                                }
                                 EMIT2(0x31, 0xd2);      /* xor %edx,%edx */
                                 EMIT1(0xb9);EMIT(K, 4); /* mov imm32,%ecx */
                                 EMIT2(0xf7, 0xf1);      /* div %ecx */
                                 EMIT2(0x89, 0xd0);      /* mov %edx,%eax */
                                 break;
-                        case BPF_S_ALU_DIV_K: /* A = reciprocal_divide(A, K); */
-                                EMIT3(0x48, 0x69, 0xc0); /* imul imm32,%rax,%rax */
-                                EMIT(K, 4);
-                                EMIT4(0x48, 0xc1, 0xe8, 0x20); /* shr $0x20,%rax */
+                        case BPF_S_ALU_DIV_K: /* A /= K */
+                                if (K == 1)
+                                        break;
+                                EMIT2(0x31, 0xd2);      /* xor %edx,%edx */
+                                EMIT1(0xb9);EMIT(K, 4); /* mov imm32,%ecx */
+                                EMIT2(0xf7, 0xf1);      /* div %ecx */
                                 break;
                         case BPF_S_ALU_AND_X:
                                 seen |= SEEN_XREG;
diff --git a/arch/x86/vdso/vclock_gettime.c b/arch/x86/vdso/vclock_gettime.c
index 2ada505067cc..eb5d7a56f8d4 100644
--- a/arch/x86/vdso/vclock_gettime.c
+++ b/arch/x86/vdso/vclock_gettime.c
@@ -178,7 +178,7 @@ notrace static int __always_inline do_realtime(struct timespec *ts)
 
         ts->tv_nsec = 0;
         do {
-                seq = read_seqcount_begin_no_lockdep(&gtod->seq);
+                seq = raw_read_seqcount_begin(&gtod->seq);
                 mode = gtod->clock.vclock_mode;
                 ts->tv_sec = gtod->wall_time_sec;
                 ns = gtod->wall_time_snsec;
@@ -198,7 +198,7 @@ notrace static int do_monotonic(struct timespec *ts)
 
         ts->tv_nsec = 0;
         do {
-                seq = read_seqcount_begin_no_lockdep(&gtod->seq);
+                seq = raw_read_seqcount_begin(&gtod->seq);
                 mode = gtod->clock.vclock_mode;
                 ts->tv_sec = gtod->monotonic_time_sec;
                 ns = gtod->monotonic_time_snsec;
@@ -214,7 +214,7 @@ notrace static int do_realtime_coarse(struct timespec *ts)
 {
         unsigned long seq;
         do {
-                seq = read_seqcount_begin_no_lockdep(&gtod->seq);
+                seq = raw_read_seqcount_begin(&gtod->seq);
                 ts->tv_sec = gtod->wall_time_coarse.tv_sec;
                 ts->tv_nsec = gtod->wall_time_coarse.tv_nsec;
         } while (unlikely(read_seqcount_retry(&gtod->seq, seq)));
@@ -225,7 +225,7 @@ notrace static int do_monotonic_coarse(struct timespec *ts)
 {
         unsigned long seq;
         do {
-                seq = read_seqcount_begin_no_lockdep(&gtod->seq);
+                seq = raw_read_seqcount_begin(&gtod->seq);
                 ts->tv_sec = gtod->monotonic_time_coarse.tv_sec;
                 ts->tv_nsec = gtod->monotonic_time_coarse.tv_nsec;
         } while (unlikely(read_seqcount_retry(&gtod->seq, seq)));
diff --git a/drivers/clocksource/cadence_ttc_timer.c b/drivers/clocksource/cadence_ttc_timer.c
index b2bb3a4bc205..a92350b55d32 100644
--- a/drivers/clocksource/cadence_ttc_timer.c
+++ b/drivers/clocksource/cadence_ttc_timer.c
@@ -67,11 +67,13 @@
  * struct ttc_timer - This definition defines local timer structure
  *
  * @base_addr:  Base address of timer
+ * @freq:       Timer input clock frequency
  * @clk:        Associated clock source
  * @clk_rate_change_nb  Notifier block for clock rate changes
  */
 struct ttc_timer {
         void __iomem *base_addr;
+        unsigned long freq;
         struct clk *clk;
         struct notifier_block clk_rate_change_nb;
 };
@@ -196,9 +198,8 @@ static void ttc_set_mode(enum clock_event_mode mode,
 
         switch (mode) {
         case CLOCK_EVT_MODE_PERIODIC:
-                ttc_set_interval(timer,
-                                DIV_ROUND_CLOSEST(clk_get_rate(ttce->ttc.clk),
-                                        PRESCALE * HZ));
+                ttc_set_interval(timer, DIV_ROUND_CLOSEST(ttce->ttc.freq,
+                                                PRESCALE * HZ));
                 break;
         case CLOCK_EVT_MODE_ONESHOT:
         case CLOCK_EVT_MODE_UNUSED:
@@ -273,6 +274,8 @@ static void __init ttc_setup_clocksource(struct clk *clk, void __iomem *base)
                 return;
         }
 
+        ttccs->ttc.freq = clk_get_rate(ttccs->ttc.clk);
+
         ttccs->ttc.clk_rate_change_nb.notifier_call =
                 ttc_rate_change_clocksource_cb;
         ttccs->ttc.clk_rate_change_nb.next = NULL;
@@ -298,16 +301,14 @@ static void __init ttc_setup_clocksource(struct clk *clk, void __iomem *base)
         __raw_writel(CNT_CNTRL_RESET,
                      ttccs->ttc.base_addr + TTC_CNT_CNTRL_OFFSET);
 
-        err = clocksource_register_hz(&ttccs->cs,
-                        clk_get_rate(ttccs->ttc.clk) / PRESCALE);
+        err = clocksource_register_hz(&ttccs->cs, ttccs->ttc.freq / PRESCALE);
         if (WARN_ON(err)) {
                 kfree(ttccs);
                 return;
         }
 
         ttc_sched_clock_val_reg = base + TTC_COUNT_VAL_OFFSET;
-        setup_sched_clock(ttc_sched_clock_read, 16,
-                        clk_get_rate(ttccs->ttc.clk) / PRESCALE);
+        setup_sched_clock(ttc_sched_clock_read, 16, ttccs->ttc.freq / PRESCALE);
 }
 
 static int ttc_rate_change_clockevent_cb(struct notifier_block *nb,
@@ -334,6 +335,9 @@ static int ttc_rate_change_clockevent_cb(struct notifier_block *nb,
                                 ndata->new_rate / PRESCALE);
                 local_irq_restore(flags);
 
+                /* update cached frequency */
+                ttc->freq = ndata->new_rate;
+
                 /* fall through */
         }
         case PRE_RATE_CHANGE:
@@ -367,6 +371,7 @@ static void __init ttc_setup_clockevent(struct clk *clk,
         if (clk_notifier_register(ttcce->ttc.clk,
                                 &ttcce->ttc.clk_rate_change_nb))
                 pr_warn("Unable to register clock notifier.\n");
+        ttcce->ttc.freq = clk_get_rate(ttcce->ttc.clk);
 
         ttcce->ttc.base_addr = base;
         ttcce->ce.name = "ttc_clockevent";
@@ -396,7 +401,7 @@ static void __init ttc_setup_clockevent(struct clk *clk,
         }
 
         clockevents_config_and_register(&ttcce->ce,
-                        clk_get_rate(ttcce->ttc.clk) / PRESCALE, 1, 0xfffe);
+                        ttcce->ttc.freq / PRESCALE, 1, 0xfffe);
 }
 
 /**
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index 85071a1c4547..b0733153dfd2 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -1041,7 +1041,7 @@ void drm_mode_connector_list_update(struct drm_connector *connector)
                                 /* if equal delete the probed mode */
                                 mode->status = pmode->status;
                                 /* Merge type bits together */
-                                mode->type = pmode->type;
+                                mode->type |= pmode->type;
                                 list_del(&pmode->head);
                                 drm_mode_destroy(connector->dev, pmode);
                                 break;
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 5d1dedc02f15..f13d5edc39d5 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -2713,6 +2713,8 @@ static void gen8_irq_preinstall(struct drm_device *dev)
 #undef GEN8_IRQ_INIT_NDX
 
         POSTING_READ(GEN8_PCU_IIR);
+
+        ibx_irq_preinstall(dev);
 }
 
 static void ibx_hpd_irq_setup(struct drm_device *dev)
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 526c8ded16b0..b69dc3e66c16 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1057,12 +1057,18 @@ void intel_ddi_setup_hw_pll_state(struct drm_device *dev)
         enum pipe pipe;
         struct intel_crtc *intel_crtc;
 
+        dev_priv->ddi_plls.spll_refcount = 0;
+        dev_priv->ddi_plls.wrpll1_refcount = 0;
+        dev_priv->ddi_plls.wrpll2_refcount = 0;
+
         for_each_pipe(pipe) {
                 intel_crtc =
                         to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
 
-                if (!intel_crtc->active)
+                if (!intel_crtc->active) {
+                        intel_crtc->ddi_pll_sel = PORT_CLK_SEL_NONE;
                         continue;
+                }
 
                 intel_crtc->ddi_pll_sel = intel_ddi_get_crtc_pll(dev_priv,
                                                                  pipe);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 769b864465a9..2bde35d34eb9 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -11053,10 +11053,10 @@ void intel_modeset_gem_init(struct drm_device *dev)
 
         intel_setup_overlay(dev);
 
-        drm_modeset_lock_all(dev);
+        mutex_lock(&dev->mode_config.mutex);
         drm_mode_config_reset(dev);
         intel_modeset_setup_hw_state(dev, false);
-        drm_modeset_unlock_all(dev);
+        mutex_unlock(&dev->mode_config.mutex);
 }
 
 void intel_modeset_cleanup(struct drm_device *dev)
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/i2c.h b/drivers/gpu/drm/nouveau/core/include/subdev/i2c.h
index 9fa5da723871..7f50a858b16f 100644
--- a/drivers/gpu/drm/nouveau/core/include/subdev/i2c.h
+++ b/drivers/gpu/drm/nouveau/core/include/subdev/i2c.h
@@ -73,7 +73,7 @@ struct nouveau_i2c {
         int (*identify)(struct nouveau_i2c *, int index,
                         const char *what, struct nouveau_i2c_board_info *,
                         bool (*match)(struct nouveau_i2c_port *,
-                                      struct i2c_board_info *));
+                                      struct i2c_board_info *, void *), void *);
         struct list_head ports;
 };
 
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/instmem.h b/drivers/gpu/drm/nouveau/core/include/subdev/instmem.h
index ec7a54e91a08..4aca33887aaa 100644
--- a/drivers/gpu/drm/nouveau/core/include/subdev/instmem.h
+++ b/drivers/gpu/drm/nouveau/core/include/subdev/instmem.h
@@ -50,6 +50,13 @@ struct nouveau_instmem {
 static inline struct nouveau_instmem *
 nouveau_instmem(void *obj)
 {
+        /* nv04/nv40 impls need to create objects in their constructor,
+         * which is before the subdev pointer is valid
+         */
+        if (nv_iclass(obj, NV_SUBDEV_CLASS) &&
+            nv_subidx(obj) == NVDEV_SUBDEV_INSTMEM)
+                return obj;
+
         return (void *)nv_device(obj)->subdev[NVDEV_SUBDEV_INSTMEM];
 }
 
diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c
index 041fd5edaebf..c33c03d2f4af 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c
@@ -197,7 +197,7 @@ static int
 nouveau_i2c_identify(struct nouveau_i2c *i2c, int index, const char *what,
                      struct nouveau_i2c_board_info *info,
                      bool (*match)(struct nouveau_i2c_port *,
-                                   struct i2c_board_info *))
+                                   struct i2c_board_info *, void *), void *data)
 {
         struct nouveau_i2c_port *port = nouveau_i2c_find(i2c, index);
         int i;
@@ -221,7 +221,7 @@ nouveau_i2c_identify(struct nouveau_i2c *i2c, int index, const char *what,
                 }
 
                 if (nv_probe_i2c(port, info[i].dev.addr) &&
-                    (!match || match(port, &info[i].dev))) {
+                    (!match || match(port, &info[i].dev, data))) {
                         nv_info(i2c, "detected %s: %s\n", what,
                                 info[i].dev.type);
                         return i;
diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/ic.c b/drivers/gpu/drm/nouveau/core/subdev/therm/ic.c
index e44ed7b93c6d..7610fc5f8fa2 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/therm/ic.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/therm/ic.c
@@ -29,9 +29,9 @@
 
 static bool
 probe_monitoring_device(struct nouveau_i2c_port *i2c,
-                        struct i2c_board_info *info)
+                        struct i2c_board_info *info, void *data)
 {
-        struct nouveau_therm_priv *priv = (void *)nouveau_therm(i2c);
+        struct nouveau_therm_priv *priv = data;
         struct nvbios_therm_sensor *sensor = &priv->bios_sensor;
         struct i2c_client *client;
 
@@ -96,7 +96,7 @@ nouveau_therm_ic_ctor(struct nouveau_therm *therm)
                 };
 
                 i2c->identify(i2c, NV_I2C_DEFAULT(0), "monitoring device",
-                                  board, probe_monitoring_device);
+                              board, probe_monitoring_device, therm);
                 if (priv->ic)
                         return;
         }
@@ -108,7 +108,7 @@ nouveau_therm_ic_ctor(struct nouveau_therm *therm)
                 };
 
                 i2c->identify(i2c, NV_I2C_DEFAULT(0), "monitoring device",
-                                  board, probe_monitoring_device);
+                              board, probe_monitoring_device, therm);
                 if (priv->ic)
                         return;
         }
@@ -117,5 +117,5 @@ nouveau_therm_ic_ctor(struct nouveau_therm *therm)
            device. Let's try our static list.
          */
         i2c->identify(i2c, NV_I2C_DEFAULT(0), "monitoring device",
-                      nv_board_infos, probe_monitoring_device);
+                      nv_board_infos, probe_monitoring_device, therm);
 }
diff --git a/drivers/gpu/drm/nouveau/dispnv04/dfp.c b/drivers/gpu/drm/nouveau/dispnv04/dfp.c
index 936a71c59080..7fdc51e2a571 100644
--- a/drivers/gpu/drm/nouveau/dispnv04/dfp.c
+++ b/drivers/gpu/drm/nouveau/dispnv04/dfp.c
@@ -643,7 +643,7 @@ static void nv04_tmds_slave_init(struct drm_encoder *encoder)
             get_tmds_slave(encoder))
                 return;
 
-        type = i2c->identify(i2c, 2, "TMDS transmitter", info, NULL);
+        type = i2c->identify(i2c, 2, "TMDS transmitter", info, NULL, NULL);
         if (type < 0)
                 return;
 
diff --git a/drivers/gpu/drm/nouveau/dispnv04/tvnv04.c b/drivers/gpu/drm/nouveau/dispnv04/tvnv04.c
index cc4b208ce546..244822df8ffc 100644
--- a/drivers/gpu/drm/nouveau/dispnv04/tvnv04.c
+++ b/drivers/gpu/drm/nouveau/dispnv04/tvnv04.c
@@ -59,7 +59,7 @@ int nv04_tv_identify(struct drm_device *dev, int i2c_index)
         struct nouveau_i2c *i2c = nouveau_i2c(drm->device);
 
         return i2c->identify(i2c, i2c_index, "TV encoder",
-                             nv04_tv_encoder_info, NULL);
+                             nv04_tv_encoder_info, NULL, NULL);
 }
 
 
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index 78be66176840..942509892895 100644
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -52,7 +52,7 @@ MODULE_PARM_DESC(tjmax, "TjMax value in degrees Celsius");
 
 #define BASE_SYSFS_ATTR_NO      2       /* Sysfs Base attr no for coretemp */
 #define NUM_REAL_CORES          32      /* Number of Real cores per cpu */
-#define CORETEMP_NAME_LENGTH    17      /* String Length of attrs */
+#define CORETEMP_NAME_LENGTH    19      /* String Length of attrs */
 #define MAX_CORE_ATTRS          4       /* Maximum no of basic attrs */
 #define TOTAL_ATTRS             (MAX_CORE_ATTRS + 1)
 #define MAX_CORE_DATA           (NUM_REAL_CORES + BASE_SYSFS_ATTR_NO)
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 21f4d7ff0da2..369d919bdafe 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1077,6 +1077,7 @@ static int super_90_validate(struct mddev *mddev, struct md_rdev *rdev)
         rdev->raid_disk = -1;
         clear_bit(Faulty, &rdev->flags);
         clear_bit(In_sync, &rdev->flags);
+        clear_bit(Bitmap_sync, &rdev->flags);
         clear_bit(WriteMostly, &rdev->flags);
 
         if (mddev->raid_disks == 0) {
@@ -1155,6 +1156,8 @@ static int super_90_validate(struct mddev *mddev, struct md_rdev *rdev)
                  */
                 if (ev1 < mddev->bitmap->events_cleared)
                         return 0;
+                if (ev1 < mddev->events)
+                        set_bit(Bitmap_sync, &rdev->flags);
         } else {
                 if (ev1 < mddev->events)
                         /* just a hot-add of a new device, leave raid_disk at -1 */
@@ -1563,6 +1566,7 @@ static int super_1_validate(struct mddev *mddev, struct md_rdev *rdev)
         rdev->raid_disk = -1;
         clear_bit(Faulty, &rdev->flags);
         clear_bit(In_sync, &rdev->flags);
+        clear_bit(Bitmap_sync, &rdev->flags);
         clear_bit(WriteMostly, &rdev->flags);
 
         if (mddev->raid_disks == 0) {
@@ -1645,6 +1649,8 @@ static int super_1_validate(struct mddev *mddev, struct md_rdev *rdev)
                  */
                 if (ev1 < mddev->bitmap->events_cleared)
                         return 0;
+                if (ev1 < mddev->events)
+                        set_bit(Bitmap_sync, &rdev->flags);
         } else {
                 if (ev1 < mddev->events)
                         /* just a hot-add of a new device, leave raid_disk at -1 */
@@ -2788,6 +2794,7 @@ slot_store(struct md_rdev *rdev, const char *buf, size_t len)
                 else
                         rdev->saved_raid_disk = -1;
                 clear_bit(In_sync, &rdev->flags);
+                clear_bit(Bitmap_sync, &rdev->flags);
                 err = rdev->mddev->pers->
                         hot_add_disk(rdev->mddev, rdev);
                 if (err) {
@@ -5760,6 +5767,7 @@ static int add_new_disk(struct mddev * mddev, mdu_disk_info_t *info)
                             info->raid_disk < mddev->raid_disks) {
                                 rdev->raid_disk = info->raid_disk;
                                 set_bit(In_sync, &rdev->flags);
+                                clear_bit(Bitmap_sync, &rdev->flags);
                         } else
                                 rdev->raid_disk = -1;
                 } else
@@ -7706,7 +7714,8 @@ static int remove_and_add_spares(struct mddev *mddev,
                 if (test_bit(Faulty, &rdev->flags))
                         continue;
                 if (mddev->ro &&
-                    rdev->saved_raid_disk < 0)
+                    ! (rdev->saved_raid_disk >= 0 &&
+                       !test_bit(Bitmap_sync, &rdev->flags)))
                         continue;
 
                 rdev->recovery_offset = 0;
@@ -7787,9 +7796,12 @@ void md_check_recovery(struct mddev *mddev)
                          * As we only add devices that are already in-sync,
                          * we can activate the spares immediately.
                          */
-                        clear_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
                         remove_and_add_spares(mddev, NULL);
-                        mddev->pers->spare_active(mddev);
+                        /* There is no thread, but we need to call
+                         * ->spare_active and clear saved_raid_disk
+                         */
+                        md_reap_sync_thread(mddev);
+                        clear_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
                         goto unlock;
                 }
 
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 2f5cc8a7ef3e..0095ec84ffc7 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -129,6 +129,9 @@ struct md_rdev {
 enum flag_bits {
         Faulty,                 /* device is known to have a fault */
         In_sync,                /* device is in_sync with rest of array */
+        Bitmap_sync,            /* ..actually, not quite In_sync.  Need a
+                                 * bitmap-based recovery to get fully in sync
+                                 */
         Unmerged,               /* device is being added to array and should
                                  * be considerred for bvec_merge_fn but not
                                  * yet for actual IO
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 1e5a540995e9..a49cfcc7a343 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -924,9 +924,8 @@ static sector_t wait_barrier(struct r1conf *conf, struct bio *bio)
                                 conf->next_window_requests++;
                         else
                                 conf->current_window_requests++;
-                }
-                if (bio->bi_sector >= conf->start_next_window)
                         sector = conf->start_next_window;
+                }
         }
 
         conf->nr_pending++;
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index c504e8389e69..06eeb99ea6fc 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1319,7 +1319,7 @@ read_again:
                         /* Could not read all from this device, so we will
                          * need another r10_bio.
                          */
-                        sectors_handled = (r10_bio->sectors + max_sectors
+                        sectors_handled = (r10_bio->sector + max_sectors
                                            - bio->bi_sector);
                         r10_bio->sectors = max_sectors;
                         spin_lock_irq(&conf->device_lock);
@@ -1327,7 +1327,7 @@ read_again:
                                 bio->bi_phys_segments = 2;
                         else
                                 bio->bi_phys_segments++;
-                        spin_unlock(&conf->device_lock);
+                        spin_unlock_irq(&conf->device_lock);
                         /* Cannot call generic_make_request directly
                          * as that will be queued in __generic_make_request
                          * and subsequent mempool_alloc might block
@@ -3218,10 +3218,6 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr,
                         if (j == conf->copies) {
                                 /* Cannot recover, so abort the recovery or
                                  * record a bad block */
-                                put_buf(r10_bio);
-                                if (rb2)
-                                        atomic_dec(&rb2->remaining);
-                                r10_bio = rb2;
                                 if (any_working) {
                                         /* problem is that there are bad blocks
                                          * on other device(s)
@@ -3253,6 +3249,10 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr,
                                         mirror->recovery_disabled
                                                 = mddev->recovery_disabled;
                                 }
+                                put_buf(r10_bio);
+                                if (rb2)
+                                        atomic_dec(&rb2->remaining);
+                                r10_bio = rb2;
                                 break;
                         }
                 }
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index cc055da02e2a..cbb15716a5db 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -687,7 +687,8 @@ get_active_stripe(struct r5conf *conf, sector_t sector,
                         } else {
                                 if (!test_bit(STRIPE_HANDLE, &sh->state))
                                         atomic_inc(&conf->active_stripes);
-                                BUG_ON(list_empty(&sh->lru));
+                                BUG_ON(list_empty(&sh->lru) &&
+                                       !test_bit(STRIPE_EXPANDING, &sh->state));
                                 list_del_init(&sh->lru);
                                 if (sh->group) {
                                         sh->group->stripes_cnt--;
@@ -3608,7 +3609,7 @@ static void analyse_stripe(struct stripe_head *sh, struct stripe_head_state *s)
                          */
                         set_bit(R5_Insync, &dev->flags);
 
-                if (rdev && test_bit(R5_WriteError, &dev->flags)) {
+                if (test_bit(R5_WriteError, &dev->flags)) {
                         /* This flag does not apply to '.replacement'
                          * only to .rdev, so make sure to check that*/
                         struct md_rdev *rdev2 = rcu_dereference(
@@ -3621,7 +3622,7 @@ static void analyse_stripe(struct stripe_head *sh, struct stripe_head_state *s)
                         } else
                                 clear_bit(R5_WriteError, &dev->flags);
                 }
-                if (rdev && test_bit(R5_MadeGood, &dev->flags)) {
+                if (test_bit(R5_MadeGood, &dev->flags)) {
                         /* This flag does not apply to '.replacement'
                          * only to .rdev, so make sure to check that*/
                         struct md_rdev *rdev2 = rcu_dereference(
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 8b3107b2fcc1..0067b975873f 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -12942,25 +12942,26 @@ static void __bnx2x_remove(struct pci_dev *pdev,
                 pci_set_power_state(pdev, PCI_D3hot);
         }
 
-        if (bp->regview)
-                iounmap(bp->regview);
+        if (remove_netdev) {
+                if (bp->regview)
+                        iounmap(bp->regview);
 
-        /* for vf doorbells are part of the regview and were unmapped along with
-         * it. FW is only loaded by PF.
-         */
-        if (IS_PF(bp)) {
-                if (bp->doorbells)
-                        iounmap(bp->doorbells);
+                /* For vfs, doorbells are part of the regview and were unmapped
+                 * along with it. FW is only loaded by PF.
+                 */
+                if (IS_PF(bp)) {
+                        if (bp->doorbells)
+                                iounmap(bp->doorbells);
 
-                bnx2x_release_firmware(bp);
-        }
-        bnx2x_free_mem_bp(bp);
+                        bnx2x_release_firmware(bp);
+                }
+                bnx2x_free_mem_bp(bp);
 
-        if (remove_netdev)
                 free_netdev(dev);
 
-        if (atomic_read(&pdev->enable_cnt) == 1)
-                pci_release_regions(pdev);
+                if (atomic_read(&pdev->enable_cnt) == 1)
+                        pci_release_regions(pdev);
+        }
 
         pci_disable_device(pdev);
 }
diff --git a/drivers/net/ethernet/chelsio/cxgb4/l2t.c b/drivers/net/ethernet/chelsio/cxgb4/l2t.c
index cb05be905def..81e8402a74b4 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/l2t.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/l2t.c
@@ -423,7 +423,7 @@ u64 cxgb4_select_ntuple(struct net_device *dev,
          * in the Compressed Filter Tuple.
          */
         if (tp->vlan_shift >= 0 && l2t->vlan != VLAN_NONE)
-                ntuple |= (F_FT_VLAN_VLD | l2t->vlan) << tp->vlan_shift;
+                ntuple |= (u64)(F_FT_VLAN_VLD | l2t->vlan) << tp->vlan_shift;
 
         if (tp->port_shift >= 0)
                 ntuple |= (u64)l2t->lport << tp->port_shift;
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index bf40fdaecfa3..a37039d353c5 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -1776,6 +1776,7 @@ static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp)
         struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
         struct be_queue_info *rxq = &rxo->q;
         struct page *pagep = NULL;
+        struct device *dev = &adapter->pdev->dev;
         struct be_eth_rx_d *rxd;
         u64 page_dmaaddr = 0, frag_dmaaddr;
         u32 posted, page_offset = 0;
@@ -1788,9 +1789,15 @@ static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp)
                                 rx_stats(rxo)->rx_post_fail++;
                                 break;
                         }
-                        page_dmaaddr = dma_map_page(&adapter->pdev->dev, pagep,
-                                                    0, adapter->big_page_size,
+                        page_dmaaddr = dma_map_page(dev, pagep, 0,
+                                                    adapter->big_page_size,
                                                     DMA_FROM_DEVICE);
+                        if (dma_mapping_error(dev, page_dmaaddr)) {
+                                put_page(pagep);
+                                pagep = NULL;
+                                rx_stats(rxo)->rx_post_fail++;
+                                break;
+                        }
                         page_info->page_offset = 0;
                 } else {
                         get_page(pagep);
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index c30d41d6e426..6d14eea17918 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -6174,7 +6174,7 @@ static int __e1000_resume(struct pci_dev *pdev)
         return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int e1000_suspend(struct device *dev)
 {
         struct pci_dev *pdev = to_pci_dev(dev);
@@ -6193,7 +6193,7 @@ static int e1000_resume(struct device *dev)
 
         return __e1000_resume(pdev);
 }
-#endif /* CONFIG_PM */
+#endif /* CONFIG_PM_SLEEP */
 
 #ifdef CONFIG_PM_RUNTIME
 static int e1000_runtime_suspend(struct device *dev)
@@ -7015,13 +7015,11 @@ static DEFINE_PCI_DEVICE_TABLE(e1000_pci_tbl) = {
 };
 MODULE_DEVICE_TABLE(pci, e1000_pci_tbl);
 
-#ifdef CONFIG_PM
 static const struct dev_pm_ops e1000_pm_ops = {
         SET_SYSTEM_SLEEP_PM_OPS(e1000_suspend, e1000_resume)
         SET_RUNTIME_PM_OPS(e1000_runtime_suspend, e1000_runtime_resume,
                            e1000_idle)
 };
-#endif
 
 /* PCI Device API Driver */
 static struct pci_driver e1000_driver = {
@@ -7029,11 +7027,9 @@ static struct pci_driver e1000_driver = {
         .id_table = e1000_pci_tbl,
         .probe    = e1000_probe,
         .remove   = e1000_remove,
-#ifdef CONFIG_PM
         .driver   = {
                 .pm = &e1000_pm_ops,
         },
-#endif
         .shutdown = e1000_shutdown,
         .err_handler = &e1000_err_handler
 };
diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_main.c b/drivers/net/ethernet/qlogic/qlge/qlge_main.c
index 449f506d2e8f..f705aeeba767 100644
--- a/drivers/net/ethernet/qlogic/qlge/qlge_main.c
+++ b/drivers/net/ethernet/qlogic/qlge/qlge_main.c
@@ -4765,6 +4765,8 @@ static int qlge_probe(struct pci_dev *pdev,
                             NETIF_F_RXCSUM;
         ndev->features = ndev->hw_features;
         ndev->vlan_features = ndev->hw_features;
+        /* vlan gets same features (except vlan filter) */
+        ndev->vlan_features &= ~NETIF_F_HW_VLAN_CTAG_FILTER;
 
         if (test_bit(QL_DMA64, &qdev->flags))
                 ndev->features |= NETIF_F_HIGHDMA;
diff --git a/drivers/net/ethernet/via/via-rhine.c b/drivers/net/ethernet/via/via-rhine.c
index cce6c4bc556a..ef312bc6b865 100644
--- a/drivers/net/ethernet/via/via-rhine.c
+++ b/drivers/net/ethernet/via/via-rhine.c
@@ -1618,6 +1618,7 @@ static void rhine_reset_task(struct work_struct *work)
                 goto out_unlock;
 
         napi_disable(&rp->napi);
+        netif_tx_disable(dev);
         spin_lock_bh(&rp->lock);
 
         /* clear all descriptors */
diff --git a/drivers/net/usb/dm9601.c b/drivers/net/usb/dm9601.c
index 14aa48fa8d7e..e80219877730 100644
--- a/drivers/net/usb/dm9601.c
+++ b/drivers/net/usb/dm9601.c
@@ -614,6 +614,18 @@ static const struct usb_device_id products[] = {
          USB_DEVICE(0x0a46, 0x9621),    /* DM9621A USB to Fast Ethernet Adapter */
          .driver_info = (unsigned long)&dm9601_info,
         },
+        {
+         USB_DEVICE(0x0a46, 0x9622),    /* DM9622 USB to Fast Ethernet Adapter */
+         .driver_info = (unsigned long)&dm9601_info,
+        },
+        {
+         USB_DEVICE(0x0a46, 0x0269),    /* DM962OA USB to Fast Ethernet Adapter */
+         .driver_info = (unsigned long)&dm9601_info,
+        },
+        {
+         USB_DEVICE(0x0a46, 0x1269),    /* DM9621A USB to Fast Ethernet Adapter */
+         .driver_info = (unsigned long)&dm9601_info,
+        },
         {},                     // END
 };
 
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 8494bb53ebdc..aba04f561760 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1245,7 +1245,7 @@ static int build_dma_sg(const struct sk_buff *skb, struct urb *urb)
                 return -ENOMEM;
 
         urb->num_sgs = num_sgs;
-        sg_init_table(urb->sg, urb->num_sgs);
+        sg_init_table(urb->sg, urb->num_sgs + 1);
 
         sg_set_buf(&urb->sg[s++], skb->data, skb_headlen(skb));
         total_len += skb_headlen(skb);
diff --git a/fs/dcache.c b/fs/dcache.c
index 6055d61811d3..cb4a10690868 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -3061,8 +3061,13 @@ char *d_path(const struct path *path, char *buf, int buflen)
          * thus don't need to be hashed.  They also don't need a name until a
          * user wants to identify the object in /proc/pid/fd/.  The little hack
          * below allows us to generate a name for these objects on demand:
+         *
+         * Some pseudo inodes are mountable.  When they are mounted
+         * path->dentry == path->mnt->mnt_root.  In that case don't call d_dname
+         * and instead have d_path return the mounted path.
          */
-        if (path->dentry->d_op && path->dentry->d_op->d_dname)
+        if (path->dentry->d_op && path->dentry->d_op->d_dname &&
+            (!IS_ROOT(path->dentry) || path->dentry != path->mnt->mnt_root))
                 return path->dentry->d_op->d_dname(path->dentry, buf, buflen);
 
         rcu_read_lock();
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 1f4a10ece2f1..e0259a163f98 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -516,13 +516,16 @@ writeback_single_inode(struct inode *inode, struct bdi_writeback *wb,
         }
         WARN_ON(inode->i_state & I_SYNC);
         /*
-         * Skip inode if it is clean. We don't want to mess with writeback
-         * lists in this function since flusher thread may be doing for example
-         * sync in parallel and if we move the inode, it could get skipped. So
-         * here we make sure inode is on some writeback list and leave it there
-         * unless we have completely cleaned the inode.
+         * Skip inode if it is clean and we have no outstanding writeback in
+         * WB_SYNC_ALL mode. We don't want to mess with writeback lists in this
+         * function since flusher thread may be doing for example sync in
+         * parallel and if we move the inode, it could get skipped. So here we
+         * make sure inode is on some writeback list and leave it there unless
+         * we have completely cleaned the inode.
          */
-        if (!(inode->i_state & I_DIRTY))
+        if (!(inode->i_state & I_DIRTY) &&
+            (wbc->sync_mode != WB_SYNC_ALL ||
+             !mapping_tagged(inode->i_mapping, PAGECACHE_TAG_WRITEBACK)))
                 goto out;
         inode->i_state |= I_SYNC;
         spin_unlock(&inode->i_lock);
diff --git a/fs/namespace.c b/fs/namespace.c
index ac2ce8a766e1..be32ebccdeb1 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -2886,7 +2886,7 @@ bool fs_fully_visible(struct file_system_type *type)
                         struct inode *inode = child->mnt_mountpoint->d_inode;
                         if (!S_ISDIR(inode->i_mode))
                                 goto next;
-                        if (inode->i_nlink != 2)
+                        if (inode->i_nlink > 2)
                                 goto next;
                 }
                 visible = true;
diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c
index 9f6b486b6c01..a1a191634abc 100644
--- a/fs/nilfs2/segment.c
+++ b/fs/nilfs2/segment.c
@@ -1440,17 +1440,19 @@ static int nilfs_segctor_collect(struct nilfs_sc_info *sci,
 
                 nilfs_clear_logs(&sci->sc_segbufs);
 
-                err = nilfs_segctor_extend_segments(sci, nilfs, nadd);
-                if (unlikely(err))
-                        return err;
-
                 if (sci->sc_stage.flags & NILFS_CF_SUFREED) {
                         err = nilfs_sufile_cancel_freev(nilfs->ns_sufile,
                                                         sci->sc_freesegs,
                                                         sci->sc_nfreesegs,
                                                         NULL);
                         WARN_ON(err); /* do not happen */
+                        sci->sc_stage.flags &= ~NILFS_CF_SUFREED;
                 }
+
+                err = nilfs_segctor_extend_segments(sci, nilfs, nadd);
+                if (unlikely(err))
+                        return err;
+
                 nadd = min_t(int, nadd << 1, SC_MAX_SEGDELTA);
                 sci->sc_stage = prev_stage;
         }
diff --git a/include/linux/crash_dump.h b/include/linux/crash_dump.h
index fe68a5a98583..7032518f8542 100644
--- a/include/linux/crash_dump.h
+++ b/include/linux/crash_dump.h
@@ -6,6 +6,8 @@
 #include <linux/proc_fs.h>
 #include <linux/elf.h>
 
+#include <asm/pgtable.h> /* for pgprot_t */
+
 #define ELFCORE_ADDR_MAX        (-1ULL)
 #define ELFCORE_ADDR_ERR        (-2ULL)
 
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index eff50e062be8..d9c8dbd3373f 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -445,7 +445,7 @@ static inline void i2c_set_adapdata(struct i2c_adapter *dev, void *data)
 static inline struct i2c_adapter *
 i2c_parent_is_i2c_adapter(const struct i2c_adapter *adapter)
 {
-#if IS_ENABLED(I2C_MUX)
+#if IS_ENABLED(CONFIG_I2C_MUX)
         struct device *parent = adapter->dev.parent;
 
         if (parent != NULL && parent->type == &i2c_adapter_type)
diff --git a/include/linux/seqlock.h b/include/linux/seqlock.h
index cf87a24c0f92..535f158977b9 100644
--- a/include/linux/seqlock.h
+++ b/include/linux/seqlock.h
@@ -117,15 +117,15 @@ repeat:
 }
 
 /**
- * read_seqcount_begin_no_lockdep - start seq-read critical section w/o lockdep
+ * raw_read_seqcount_begin - start seq-read critical section w/o lockdep
  * @s: pointer to seqcount_t
  * Returns: count to be passed to read_seqcount_retry
  *
- * read_seqcount_begin_no_lockdep opens a read critical section of the given
+ * raw_read_seqcount_begin opens a read critical section of the given
  * seqcount, but without any lockdep checking. Validity of the critical
  * section is tested by checking read_seqcount_retry function.
  */
-static inline unsigned read_seqcount_begin_no_lockdep(const seqcount_t *s)
+static inline unsigned raw_read_seqcount_begin(const seqcount_t *s)
 {
         unsigned ret = __read_seqcount_begin(s);
         smp_rmb();
@@ -144,7 +144,7 @@ static inline unsigned read_seqcount_begin_no_lockdep(const seqcount_t *s)
 static inline unsigned read_seqcount_begin(const seqcount_t *s)
 {
         seqcount_lockdep_reader_access(s);
-        return read_seqcount_begin_no_lockdep(s);
+        return raw_read_seqcount_begin(s);
 }
 
 /**
@@ -206,14 +206,26 @@ static inline int read_seqcount_retry(const seqcount_t *s, unsigned start)
 }
 
 
+
+static inline void raw_write_seqcount_begin(seqcount_t *s)
+{
+        s->sequence++;
+        smp_wmb();
+}
+
+static inline void raw_write_seqcount_end(seqcount_t *s)
+{
+        smp_wmb();
+        s->sequence++;
+}
+
 /*
  * Sequence counter only version assumes that callers are using their
  * own mutexing.
  */
 static inline void write_seqcount_begin_nested(seqcount_t *s, int subclass)
 {
-        s->sequence++;
-        smp_wmb();
+        raw_write_seqcount_begin(s);
         seqcount_acquire(&s->dep_map, subclass, 0, _RET_IP_);
 }
 
@@ -225,8 +237,7 @@ static inline void write_seqcount_begin(seqcount_t *s)
 static inline void write_seqcount_end(seqcount_t *s)
 {
         seqcount_release(&s->dep_map, 1, _RET_IP_);
-        smp_wmb();
-        s->sequence++;
+        raw_write_seqcount_end(s);
 }
 
 /**
diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h
index 76d54270f2e2..65bb13035598 100644
--- a/include/net/if_inet6.h
+++ b/include/net/if_inet6.h
@@ -165,7 +165,6 @@ struct inet6_dev {
         struct net_device       *dev;
 
         struct list_head        addr_list;
-        int                     valid_ll_addr_cnt;
 
         struct ifmcaddr6        *mc_list;
         struct ifmcaddr6        *mc_tomb;
diff --git a/kernel/fork.c b/kernel/fork.c
index 5721f0e3f2da..dfa736c98d17 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1172,7 +1172,7 @@ static struct task_struct *copy_process(unsigned long clone_flags,
          * do not allow it to share a thread group or signal handlers or
          * parent with the forking task.
          */
-        if (clone_flags & (CLONE_SIGHAND | CLONE_PARENT)) {
+        if (clone_flags & CLONE_SIGHAND) {
                 if ((clone_flags & (CLONE_NEWUSER | CLONE_NEWPID)) ||
                     (task_active_pid_ns(current) !=
                                 current->nsproxy->pid_ns_for_children))
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index c7395d97e4cb..e64b0794060e 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -3923,7 +3923,7 @@ static long effective_load(struct task_group *tg, int cpu, long wl, long wg)
 {
         struct sched_entity *se = tg->se[cpu];
 
-        if (!tg->parent || !wl) /* the trivial, non-cgroup case */
+        if (!tg->parent)        /* the trivial, non-cgroup case */
                 return wl;
 
         for_each_sched_entity(se) {
diff --git a/kernel/time/sched_clock.c b/kernel/time/sched_clock.c
index 68b799375981..0abb36464281 100644
--- a/kernel/time/sched_clock.c
+++ b/kernel/time/sched_clock.c
@@ -74,7 +74,7 @@ unsigned long long notrace sched_clock(void)
                 return cd.epoch_ns;
 
         do {
-                seq = read_seqcount_begin(&cd.seq);
+                seq = raw_read_seqcount_begin(&cd.seq);
                 epoch_cyc = cd.epoch_cyc;
                 epoch_ns = cd.epoch_ns;
         } while (read_seqcount_retry(&cd.seq, seq));
@@ -99,10 +99,10 @@ static void notrace update_sched_clock(void)
                           cd.mult, cd.shift);
 
         raw_local_irq_save(flags);
-        write_seqcount_begin(&cd.seq);
+        raw_write_seqcount_begin(&cd.seq);
         cd.epoch_ns = ns;
         cd.epoch_cyc = cyc;
-        write_seqcount_end(&cd.seq);
+        raw_write_seqcount_end(&cd.seq);
         raw_local_irq_restore(flags);
 }
 
diff --git a/lib/percpu_counter.c b/lib/percpu_counter.c
index 7473ee3b4ee7..8280a5dd1727 100644
--- a/lib/percpu_counter.c
+++ b/lib/percpu_counter.c
@@ -82,10 +82,10 @@ void __percpu_counter_add(struct percpu_counter *fbc, s64 amount, s32 batch)
                 unsigned long flags;
                 raw_spin_lock_irqsave(&fbc->lock, flags);
                 fbc->count += count;
+                __this_cpu_sub(*fbc->counters, count - amount);
                 raw_spin_unlock_irqrestore(&fbc->lock, flags);
-                __this_cpu_write(*fbc->counters, 0);
         } else {
-                __this_cpu_write(*fbc->counters, count);
+                this_cpu_add(*fbc->counters, amount);
         }
         preempt_enable();
 }
diff --git a/mm/util.c b/mm/util.c
index f7bc2096071c..808f375648e7 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -390,7 +390,10 @@ struct address_space *page_mapping(struct page *page)
 {
         struct address_space *mapping = page->mapping;
 
-        VM_BUG_ON(PageSlab(page));
+        /* This happens if someone calls flush_dcache_page on slab page */
+        if (unlikely(PageSlab(page)))
+                return NULL;
+
         if (unlikely(PageSwapCache(page))) {
                 swp_entry_t entry;
 
diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index 1511f64a6cea..faba0f61ad53 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -277,7 +277,7 @@ int batadv_max_header_len(void)
                            sizeof(struct batadv_coded_packet));
 #endif
 
-        return header_len;
+        return header_len + ETH_HLEN;
 }
 
 /**
diff --git a/net/core/filter.c b/net/core/filter.c
index 01b780856db2..ad30d626a5bd 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -36,7 +36,6 @@
 #include <asm/uaccess.h>
 #include <asm/unaligned.h>
 #include <linux/filter.h>
-#include <linux/reciprocal_div.h>
 #include <linux/ratelimit.h>
 #include <linux/seccomp.h>
 #include <linux/if_vlan.h>
@@ -166,7 +165,7 @@ unsigned int sk_run_filter(const struct sk_buff *skb,
                         A /= X;
                         continue;
                 case BPF_S_ALU_DIV_K:
-                        A = reciprocal_divide(A, K);
+                        A /= K;
                         continue;
                 case BPF_S_ALU_MOD_X:
                         if (X == 0)
@@ -553,11 +552,6 @@ int sk_chk_filter(struct sock_filter *filter, unsigned int flen)
                 /* Some instructions need special checks */
                 switch (code) {
                 case BPF_S_ALU_DIV_K:
-                        /* check for division by zero */
-                        if (ftest->k == 0)
-                                return -EINVAL;
-                        ftest->k = reciprocal_value(ftest->k);
-                        break;
                 case BPF_S_ALU_MOD_K:
                         /* check for division by zero */
                         if (ftest->k == 0)
@@ -853,27 +847,7 @@ void sk_decode_filter(struct sock_filter *filt, struct sock_filter *to)
         to->code = decodes[code];
         to->jt = filt->jt;
         to->jf = filt->jf;
-
-        if (code == BPF_S_ALU_DIV_K) {
-                /*
-                 * When loaded this rule user gave us X, which was
-                 * translated into R = r(X). Now we calculate the
-                 * RR = r(R) and report it back. If next time this
-                 * value is loaded and RRR = r(RR) is calculated
-                 * then the R == RRR will be true.
-                 *
-                 * One exception. X == 1 translates into R == 0 and
-                 * we can't calculate RR out of it with r().
-                 */
-
-                if (filt->k == 0)
-                        to->k = 1;
-                else
-                        to->k = reciprocal_value(filt->k);
-
-                BUG_ON(reciprocal_value(to->k) != filt->k);
-        } else
-                to->k = filt->k;
+        to->k = filt->k;
 }
 
 int sk_get_filter(struct sock *sk, struct sock_filter __user *ubuf, unsigned int len)
diff --git a/net/ieee802154/nl-phy.c b/net/ieee802154/nl-phy.c
index d08c7a43dcd1..89b265aea151 100644
--- a/net/ieee802154/nl-phy.c
+++ b/net/ieee802154/nl-phy.c
@@ -221,8 +221,10 @@ int ieee802154_add_iface(struct sk_buff *skb, struct genl_info *info)
 
         if (info->attrs[IEEE802154_ATTR_DEV_TYPE]) {
                 type = nla_get_u8(info->attrs[IEEE802154_ATTR_DEV_TYPE]);
-                if (type >= __IEEE802154_DEV_MAX)
-                        return -EINVAL;
+                if (type >= __IEEE802154_DEV_MAX) {
+                        rc = -EINVAL;
+                        goto nla_put_failure;
+                }
         }
 
         dev = phy->add_iface(phy, devname, type);
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index a0f52dac8940..e34dccbc4d70 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -930,12 +930,15 @@ skip_listen_ht:
                 spin_lock_bh(lock);
                 sk_nulls_for_each(sk, node, &head->chain) {
                         int res;
+                        int state;
 
                         if (!net_eq(sock_net(sk), net))
                                 continue;
                         if (num < s_num)
                                 goto next_normal;
-                        if (!(r->idiag_states & (1 << sk->sk_state)))
+                        state = (sk->sk_state == TCP_TIME_WAIT) ?
+                                inet_twsk(sk)->tw_substate : sk->sk_state;
+                        if (!(r->idiag_states & (1 << state)))
                                 goto next_normal;
                         if (r->sdiag_family != AF_UNSPEC &&
                             sk->sk_family != r->sdiag_family)
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 62212c772a4b..1672409f5ba5 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -157,9 +157,12 @@ static struct mr_table *ipmr_get_table(struct net *net, u32 id)
 static int ipmr_fib_lookup(struct net *net, struct flowi4 *flp4,
                            struct mr_table **mrt)
 {
-        struct ipmr_result res;
-        struct fib_lookup_arg arg = { .result = &res, };
         int err;
+        struct ipmr_result res;
+        struct fib_lookup_arg arg = {
+                .result = &res,
+                .flags = FIB_LOOKUP_NOREF,
+        };
 
         err = fib_rules_lookup(net->ipv4.mr_rules_ops,
                                flowi4_to_flowi(flp4), 0, &arg);
diff --git a/net/ipv4/tcp_metrics.c b/net/ipv4/tcp_metrics.c
index 06493736fbc8..098b3a29f6f3 100644
--- a/net/ipv4/tcp_metrics.c
+++ b/net/ipv4/tcp_metrics.c
@@ -22,6 +22,9 @@
 
 int sysctl_tcp_nometrics_save __read_mostly;
 
+static struct tcp_metrics_block *__tcp_get_metrics(const struct inetpeer_addr *addr,
+                                                   struct net *net, unsigned int hash);
+
 struct tcp_fastopen_metrics {
         u16     mss;
         u16     syn_loss:10;            /* Recurring Fast Open SYN losses */
@@ -130,16 +133,41 @@ static void tcpm_suck_dst(struct tcp_metrics_block *tm, struct dst_entry *dst,
         }
 }
 
+#define TCP_METRICS_TIMEOUT             (60 * 60 * HZ)
+
+static void tcpm_check_stamp(struct tcp_metrics_block *tm, struct dst_entry *dst)
+{
+        if (tm && unlikely(time_after(jiffies, tm->tcpm_stamp + TCP_METRICS_TIMEOUT)))
+                tcpm_suck_dst(tm, dst, false);
+}
+
+#define TCP_METRICS_RECLAIM_DEPTH       5
+#define TCP_METRICS_RECLAIM_PTR         (struct tcp_metrics_block *) 0x1UL
+
 static struct tcp_metrics_block *tcpm_new(struct dst_entry *dst,
                                           struct inetpeer_addr *addr,
-                                          unsigned int hash,
-                                          bool reclaim)
+                                          unsigned int hash)
 {
         struct tcp_metrics_block *tm;
         struct net *net;
+        bool reclaim = false;
 
         spin_lock_bh(&tcp_metrics_lock);
         net = dev_net(dst->dev);
+
+        /* While waiting for the spin-lock the cache might have been populated
+         * with this entry and so we have to check again.
+         */
+        tm = __tcp_get_metrics(addr, net, hash);
+        if (tm == TCP_METRICS_RECLAIM_PTR) {
+                reclaim = true;
+                tm = NULL;
+        }
+        if (tm) {
+                tcpm_check_stamp(tm, dst);
+                goto out_unlock;
+        }
+
         if (unlikely(reclaim)) {
                 struct tcp_metrics_block *oldest;
 
@@ -169,17 +197,6 @@ out_unlock:
         return tm;
 }
 
-#define TCP_METRICS_TIMEOUT             (60 * 60 * HZ)
-
-static void tcpm_check_stamp(struct tcp_metrics_block *tm, struct dst_entry *dst)
-{
-        if (tm && unlikely(time_after(jiffies, tm->tcpm_stamp + TCP_METRICS_TIMEOUT)))
-                tcpm_suck_dst(tm, dst, false);
-}
-
-#define TCP_METRICS_RECLAIM_DEPTH       5
-#define TCP_METRICS_RECLAIM_PTR         (struct tcp_metrics_block *) 0x1UL
-
 static struct tcp_metrics_block *tcp_get_encode(struct tcp_metrics_block *tm, int depth)
 {
         if (tm)
@@ -282,7 +299,6 @@ static struct tcp_metrics_block *tcp_get_metrics(struct sock *sk,
         struct inetpeer_addr addr;
         unsigned int hash;
         struct net *net;
-        bool reclaim;
 
         addr.family = sk->sk_family;
         switch (addr.family) {
@@ -304,13 +320,10 @@ static struct tcp_metrics_block *tcp_get_metrics(struct sock *sk,
         hash = hash_32(hash, net->ipv4.tcp_metrics_hash_log);
 
         tm = __tcp_get_metrics(&addr, net, hash);
-        reclaim = false;
-        if (tm == TCP_METRICS_RECLAIM_PTR) {
-                reclaim = true;
+        if (tm == TCP_METRICS_RECLAIM_PTR)
                 tm = NULL;
-        }
         if (!tm && create)
-                tm = tcpm_new(dst, &addr, hash, reclaim);
+                tm = tcpm_new(dst, &addr, hash);
         else
                 tcpm_check_stamp(tm, dst);
 
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index abe46a4228ce..4b6b720971b9 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -3189,6 +3189,22 @@ out:
         in6_ifa_put(ifp);
 }
 
+/* ifp->idev must be at least read locked */
+static bool ipv6_lonely_lladdr(struct inet6_ifaddr *ifp)
+{
+        struct inet6_ifaddr *ifpiter;
+        struct inet6_dev *idev = ifp->idev;
+
+        list_for_each_entry(ifpiter, &idev->addr_list, if_list) {
+                if (ifp != ifpiter && ifpiter->scope == IFA_LINK &&
+                    (ifpiter->flags & (IFA_F_PERMANENT|IFA_F_TENTATIVE|
+                                       IFA_F_OPTIMISTIC|IFA_F_DADFAILED)) ==
+                    IFA_F_PERMANENT)
+                        return false;
+        }
+        return true;
+}
+
 static void addrconf_dad_completed(struct inet6_ifaddr *ifp)
 {
         struct net_device *dev = ifp->idev->dev;
@@ -3208,14 +3224,11 @@ static void addrconf_dad_completed(struct inet6_ifaddr *ifp)
          */
 
         read_lock_bh(&ifp->idev->lock);
-        spin_lock(&ifp->lock);
-        send_mld = ipv6_addr_type(&ifp->addr) & IPV6_ADDR_LINKLOCAL &&
-                   ifp->idev->valid_ll_addr_cnt == 1;
+        send_mld = ifp->scope == IFA_LINK && ipv6_lonely_lladdr(ifp);
         send_rs = send_mld &&
                   ipv6_accept_ra(ifp->idev) &&
                   ifp->idev->cnf.rtr_solicits > 0 &&
                   (dev->flags&IFF_LOOPBACK) == 0;
-        spin_unlock(&ifp->lock);
         read_unlock_bh(&ifp->idev->lock);
 
         /* While dad is in progress mld report's source address is in6_addrany.
@@ -4512,19 +4525,6 @@ errout:
                 rtnl_set_sk_err(net, RTNLGRP_IPV6_PREFIX, err);
 }
 
-static void update_valid_ll_addr_cnt(struct inet6_ifaddr *ifp, int count)
-{
-        write_lock_bh(&ifp->idev->lock);
-        spin_lock(&ifp->lock);
-        if (((ifp->flags & (IFA_F_PERMANENT|IFA_F_TENTATIVE|IFA_F_OPTIMISTIC|
-                            IFA_F_DADFAILED)) == IFA_F_PERMANENT) &&
-            (ipv6_addr_type(&ifp->addr) & IPV6_ADDR_LINKLOCAL))
-                ifp->idev->valid_ll_addr_cnt += count;
-        WARN_ON(ifp->idev->valid_ll_addr_cnt < 0);
-        spin_unlock(&ifp->lock);
-        write_unlock_bh(&ifp->idev->lock);
-}
-
 static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
 {
         struct net *net = dev_net(ifp->idev->dev);
@@ -4533,8 +4533,6 @@ static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
 
         switch (event) {
         case RTM_NEWADDR:
-                update_valid_ll_addr_cnt(ifp, 1);
-
                 /*
                  * If the address was optimistic
                  * we inserted the route at the start of
@@ -4550,8 +4548,6 @@ static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
                                               ifp->idev->dev, 0, 0);
                 break;
         case RTM_DELADDR:
-                update_valid_ll_addr_cnt(ifp, -1);
-
                 if (ifp->idev->cnf.forwarding)
                         addrconf_leave_anycast(ifp);
                 addrconf_leave_solict(ifp->idev, &ifp->addr);
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index f365310bfcca..0eb4038a4d63 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -141,9 +141,12 @@ static struct mr6_table *ip6mr_get_table(struct net *net, u32 id)
 static int ip6mr_fib_lookup(struct net *net, struct flowi6 *flp6,
                             struct mr6_table **mrt)
 {
-        struct ip6mr_result res;
-        struct fib_lookup_arg arg = { .result = &res, };
         int err;
+        struct ip6mr_result res;
+        struct fib_lookup_arg arg = {
+                .result = &res,
+                .flags = FIB_LOOKUP_NOREF,
+        };
 
         err = fib_rules_lookup(net->ipv6.mr6_rules_ops,
                                flowi6_to_flowi(flp6), 0, &arg);
diff --git a/net/rds/ib_recv.c b/net/rds/ib_recv.c
index 8eb9501e3d60..b7ebe23cdedf 100644
--- a/net/rds/ib_recv.c
+++ b/net/rds/ib_recv.c
@@ -421,8 +421,7 @@ static void rds_ib_recv_cache_put(struct list_head *new_item,
                                  struct rds_ib_refill_cache *cache)
 {
         unsigned long flags;
-        struct list_head *old;
-        struct list_head __percpu *chpfirst;
+        struct list_head *old, *chpfirst;
 
         local_irq_save(flags);
 
@@ -432,7 +431,7 @@ static void rds_ib_recv_cache_put(struct list_head *new_item,
         else /* put on front */
                 list_add_tail(new_item, chpfirst);
 
-        __this_cpu_write(chpfirst, new_item);
+        __this_cpu_write(cache->percpu->first, new_item);
         __this_cpu_inc(cache->percpu->count);
 
         if (__this_cpu_read(cache->percpu->count) < RDS_IB_RECYCLE_BATCH_COUNT)
@@ -452,7 +451,7 @@ static void rds_ib_recv_cache_put(struct list_head *new_item,
         } while (old);
 
 
-        __this_cpu_write(chpfirst, NULL);
+        __this_cpu_write(cache->percpu->first, NULL);
         __this_cpu_write(cache->percpu->count, 0);
 end:
         local_irq_restore(flags);