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-rw-r--r--arch/arm/mach-omap2/board-rx51-peripherals.c4
-rw-r--r--arch/powerpc/include/asm/kexec.h6
-rw-r--r--arch/powerpc/include/asm/mmu-hash64.h4
-rw-r--r--arch/powerpc/kernel/prom.c2
-rw-r--r--arch/powerpc/mm/hash_low_64.S9
-rw-r--r--arch/powerpc/mm/hash_utils_64.c53
-rw-r--r--arch/powerpc/mm/hugetlbpage-hash64.c40
-rw-r--r--arch/powerpc/mm/numa.c24
-rw-r--r--arch/powerpc/platforms/pseries/hotplug-memory.c22
-rw-r--r--drivers/base/core.c2
-rw-r--r--drivers/virtio/virtio_ring.c5
-rw-r--r--include/asm-generic/vmlinux.lds.h12
-rw-r--r--scripts/kconfig/nconf.gui.c2
-rw-r--r--scripts/package/Makefile2
-rwxr-xr-xscripts/setlocalversion16
-rw-r--r--tools/perf/Makefile40
-rw-r--r--tools/perf/util/hist.c29
-rw-r--r--tools/perf/util/symbol.c17
18 files changed, 174 insertions, 115 deletions
diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c
index c5555ca13d00..03483920ed6e 100644
--- a/arch/arm/mach-omap2/board-rx51-peripherals.c
+++ b/arch/arm/mach-omap2/board-rx51-peripherals.c
@@ -220,10 +220,10 @@ static int board_keymap[] = {
220 KEY(4, 4, KEY_LEFTCTRL), 220 KEY(4, 4, KEY_LEFTCTRL),
221 KEY(4, 5, KEY_RIGHTALT), 221 KEY(4, 5, KEY_RIGHTALT),
222 KEY(4, 6, KEY_LEFTSHIFT), 222 KEY(4, 6, KEY_LEFTSHIFT),
223 KEY(4, 8, KEY_10), 223 KEY(4, 8, KEY_F10),
224 224
225 KEY(5, 0, KEY_Y), 225 KEY(5, 0, KEY_Y),
226 KEY(5, 8, KEY_11), 226 KEY(5, 8, KEY_F11),
227 227
228 KEY(6, 0, KEY_U), 228 KEY(6, 0, KEY_U),
229 229
diff --git a/arch/powerpc/include/asm/kexec.h b/arch/powerpc/include/asm/kexec.h
index 2a9cd74a841e..076327f2eff7 100644
--- a/arch/powerpc/include/asm/kexec.h
+++ b/arch/powerpc/include/asm/kexec.h
@@ -8,9 +8,9 @@
8 * On FSL-BookE we setup a 1:1 mapping which covers the first 2GiB of memory 8 * On FSL-BookE we setup a 1:1 mapping which covers the first 2GiB of memory
9 * and therefore we can only deal with memory within this range 9 * and therefore we can only deal with memory within this range
10 */ 10 */
11#define KEXEC_SOURCE_MEMORY_LIMIT (2 * 1024 * 1024 * 1024UL) 11#define KEXEC_SOURCE_MEMORY_LIMIT (2 * 1024 * 1024 * 1024UL - 1)
12#define KEXEC_DESTINATION_MEMORY_LIMIT (2 * 1024 * 1024 * 1024UL) 12#define KEXEC_DESTINATION_MEMORY_LIMIT (2 * 1024 * 1024 * 1024UL - 1)
13#define KEXEC_CONTROL_MEMORY_LIMIT (2 * 1024 * 1024 * 1024UL) 13#define KEXEC_CONTROL_MEMORY_LIMIT (2 * 1024 * 1024 * 1024UL - 1)
14 14
15#else 15#else
16 16
diff --git a/arch/powerpc/include/asm/mmu-hash64.h b/arch/powerpc/include/asm/mmu-hash64.h
index 2102b214a87c..0e398cfee2c8 100644
--- a/arch/powerpc/include/asm/mmu-hash64.h
+++ b/arch/powerpc/include/asm/mmu-hash64.h
@@ -250,7 +250,9 @@ extern int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
250int __hash_page_huge(unsigned long ea, unsigned long access, unsigned long vsid, 250int __hash_page_huge(unsigned long ea, unsigned long access, unsigned long vsid,
251 pte_t *ptep, unsigned long trap, int local, int ssize, 251 pte_t *ptep, unsigned long trap, int local, int ssize,
252 unsigned int shift, unsigned int mmu_psize); 252 unsigned int shift, unsigned int mmu_psize);
253 253extern void hash_failure_debug(unsigned long ea, unsigned long access,
254 unsigned long vsid, unsigned long trap,
255 int ssize, int psize, unsigned long pte);
254extern int htab_bolt_mapping(unsigned long vstart, unsigned long vend, 256extern int htab_bolt_mapping(unsigned long vstart, unsigned long vend,
255 unsigned long pstart, unsigned long prot, 257 unsigned long pstart, unsigned long prot,
256 int psize, int ssize); 258 int psize, int ssize);
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 9d3953983fb7..fed9bf6187d1 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -414,7 +414,7 @@ static int __init early_init_dt_scan_drconf_memory(unsigned long node)
414 u64 base, size, memblock_size; 414 u64 base, size, memblock_size;
415 unsigned int is_kexec_kdump = 0, rngs; 415 unsigned int is_kexec_kdump = 0, rngs;
416 416
417 ls = of_get_flat_dt_prop(node, "ibm,memblock-size", &l); 417 ls = of_get_flat_dt_prop(node, "ibm,lmb-size", &l);
418 if (ls == NULL || l < dt_root_size_cells * sizeof(__be32)) 418 if (ls == NULL || l < dt_root_size_cells * sizeof(__be32))
419 return 0; 419 return 0;
420 memblock_size = dt_mem_next_cell(dt_root_size_cells, &ls); 420 memblock_size = dt_mem_next_cell(dt_root_size_cells, &ls);
diff --git a/arch/powerpc/mm/hash_low_64.S b/arch/powerpc/mm/hash_low_64.S
index a719f53921a5..3079f6b44cf5 100644
--- a/arch/powerpc/mm/hash_low_64.S
+++ b/arch/powerpc/mm/hash_low_64.S
@@ -68,9 +68,6 @@ _GLOBAL(__hash_page_4K)
68 std r8,STK_PARM(r8)(r1) 68 std r8,STK_PARM(r8)(r1)
69 std r9,STK_PARM(r9)(r1) 69 std r9,STK_PARM(r9)(r1)
70 70
71 /* Add _PAGE_PRESENT to access */
72 ori r4,r4,_PAGE_PRESENT
73
74 /* Save non-volatile registers. 71 /* Save non-volatile registers.
75 * r31 will hold "old PTE" 72 * r31 will hold "old PTE"
76 * r30 is "new PTE" 73 * r30 is "new PTE"
@@ -347,9 +344,6 @@ _GLOBAL(__hash_page_4K)
347 std r8,STK_PARM(r8)(r1) 344 std r8,STK_PARM(r8)(r1)
348 std r9,STK_PARM(r9)(r1) 345 std r9,STK_PARM(r9)(r1)
349 346
350 /* Add _PAGE_PRESENT to access */
351 ori r4,r4,_PAGE_PRESENT
352
353 /* Save non-volatile registers. 347 /* Save non-volatile registers.
354 * r31 will hold "old PTE" 348 * r31 will hold "old PTE"
355 * r30 is "new PTE" 349 * r30 is "new PTE"
@@ -687,9 +681,6 @@ _GLOBAL(__hash_page_64K)
687 std r8,STK_PARM(r8)(r1) 681 std r8,STK_PARM(r8)(r1)
688 std r9,STK_PARM(r9)(r1) 682 std r9,STK_PARM(r9)(r1)
689 683
690 /* Add _PAGE_PRESENT to access */
691 ori r4,r4,_PAGE_PRESENT
692
693 /* Save non-volatile registers. 684 /* Save non-volatile registers.
694 * r31 will hold "old PTE" 685 * r31 will hold "old PTE"
695 * r30 is "new PTE" 686 * r30 is "new PTE"
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index 98f262de5585..09dffe6efa46 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -871,6 +871,18 @@ static inline int subpage_protection(struct mm_struct *mm, unsigned long ea)
871} 871}
872#endif 872#endif
873 873
874void hash_failure_debug(unsigned long ea, unsigned long access,
875 unsigned long vsid, unsigned long trap,
876 int ssize, int psize, unsigned long pte)
877{
878 if (!printk_ratelimit())
879 return;
880 pr_info("mm: Hashing failure ! EA=0x%lx access=0x%lx current=%s\n",
881 ea, access, current->comm);
882 pr_info(" trap=0x%lx vsid=0x%lx ssize=%d psize=%d pte=0x%lx\n",
883 trap, vsid, ssize, psize, pte);
884}
885
874/* Result code is: 886/* Result code is:
875 * 0 - handled 887 * 0 - handled
876 * 1 - normal page fault 888 * 1 - normal page fault
@@ -955,6 +967,17 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
955 return 1; 967 return 1;
956 } 968 }
957 969
970 /* Add _PAGE_PRESENT to the required access perm */
971 access |= _PAGE_PRESENT;
972
973 /* Pre-check access permissions (will be re-checked atomically
974 * in __hash_page_XX but this pre-check is a fast path
975 */
976 if (access & ~pte_val(*ptep)) {
977 DBG_LOW(" no access !\n");
978 return 1;
979 }
980
958#ifdef CONFIG_HUGETLB_PAGE 981#ifdef CONFIG_HUGETLB_PAGE
959 if (hugeshift) 982 if (hugeshift)
960 return __hash_page_huge(ea, access, vsid, ptep, trap, local, 983 return __hash_page_huge(ea, access, vsid, ptep, trap, local,
@@ -967,14 +990,6 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
967 DBG_LOW(" i-pte: %016lx %016lx\n", pte_val(*ptep), 990 DBG_LOW(" i-pte: %016lx %016lx\n", pte_val(*ptep),
968 pte_val(*(ptep + PTRS_PER_PTE))); 991 pte_val(*(ptep + PTRS_PER_PTE)));
969#endif 992#endif
970 /* Pre-check access permissions (will be re-checked atomically
971 * in __hash_page_XX but this pre-check is a fast path
972 */
973 if (access & ~pte_val(*ptep)) {
974 DBG_LOW(" no access !\n");
975 return 1;
976 }
977
978 /* Do actual hashing */ 993 /* Do actual hashing */
979#ifdef CONFIG_PPC_64K_PAGES 994#ifdef CONFIG_PPC_64K_PAGES
980 /* If _PAGE_4K_PFN is set, make sure this is a 4k segment */ 995 /* If _PAGE_4K_PFN is set, make sure this is a 4k segment */
@@ -1033,6 +1048,12 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
1033 local, ssize, spp); 1048 local, ssize, spp);
1034 } 1049 }
1035 1050
1051 /* Dump some info in case of hash insertion failure, they should
1052 * never happen so it is really useful to know if/when they do
1053 */
1054 if (rc == -1)
1055 hash_failure_debug(ea, access, vsid, trap, ssize, psize,
1056 pte_val(*ptep));
1036#ifndef CONFIG_PPC_64K_PAGES 1057#ifndef CONFIG_PPC_64K_PAGES
1037 DBG_LOW(" o-pte: %016lx\n", pte_val(*ptep)); 1058 DBG_LOW(" o-pte: %016lx\n", pte_val(*ptep));
1038#else 1059#else
@@ -1051,8 +1072,7 @@ void hash_preload(struct mm_struct *mm, unsigned long ea,
1051 void *pgdir; 1072 void *pgdir;
1052 pte_t *ptep; 1073 pte_t *ptep;
1053 unsigned long flags; 1074 unsigned long flags;
1054 int local = 0; 1075 int rc, ssize, local = 0;
1055 int ssize;
1056 1076
1057 BUG_ON(REGION_ID(ea) != USER_REGION_ID); 1077 BUG_ON(REGION_ID(ea) != USER_REGION_ID);
1058 1078
@@ -1098,11 +1118,18 @@ void hash_preload(struct mm_struct *mm, unsigned long ea,
1098 /* Hash it in */ 1118 /* Hash it in */
1099#ifdef CONFIG_PPC_HAS_HASH_64K 1119#ifdef CONFIG_PPC_HAS_HASH_64K
1100 if (mm->context.user_psize == MMU_PAGE_64K) 1120 if (mm->context.user_psize == MMU_PAGE_64K)
1101 __hash_page_64K(ea, access, vsid, ptep, trap, local, ssize); 1121 rc = __hash_page_64K(ea, access, vsid, ptep, trap, local, ssize);
1102 else 1122 else
1103#endif /* CONFIG_PPC_HAS_HASH_64K */ 1123#endif /* CONFIG_PPC_HAS_HASH_64K */
1104 __hash_page_4K(ea, access, vsid, ptep, trap, local, ssize, 1124 rc = __hash_page_4K(ea, access, vsid, ptep, trap, local, ssize,
1105 subpage_protection(pgdir, ea)); 1125 subpage_protection(pgdir, ea));
1126
1127 /* Dump some info in case of hash insertion failure, they should
1128 * never happen so it is really useful to know if/when they do
1129 */
1130 if (rc == -1)
1131 hash_failure_debug(ea, access, vsid, trap, ssize,
1132 mm->context.user_psize, pte_val(*ptep));
1106 1133
1107 local_irq_restore(flags); 1134 local_irq_restore(flags);
1108} 1135}
diff --git a/arch/powerpc/mm/hugetlbpage-hash64.c b/arch/powerpc/mm/hugetlbpage-hash64.c
index 199539882f92..cc5c273086cf 100644
--- a/arch/powerpc/mm/hugetlbpage-hash64.c
+++ b/arch/powerpc/mm/hugetlbpage-hash64.c
@@ -21,21 +21,13 @@ int __hash_page_huge(unsigned long ea, unsigned long access, unsigned long vsid,
21 unsigned long old_pte, new_pte; 21 unsigned long old_pte, new_pte;
22 unsigned long va, rflags, pa, sz; 22 unsigned long va, rflags, pa, sz;
23 long slot; 23 long slot;
24 int err = 1;
25 24
26 BUG_ON(shift != mmu_psize_defs[mmu_psize].shift); 25 BUG_ON(shift != mmu_psize_defs[mmu_psize].shift);
27 26
28 /* Search the Linux page table for a match with va */ 27 /* Search the Linux page table for a match with va */
29 va = hpt_va(ea, vsid, ssize); 28 va = hpt_va(ea, vsid, ssize);
30 29
31 /* 30 /* At this point, we have a pte (old_pte) which can be used to build
32 * Check the user's access rights to the page. If access should be
33 * prevented then send the problem up to do_page_fault.
34 */
35 if (unlikely(access & ~pte_val(*ptep)))
36 goto out;
37 /*
38 * At this point, we have a pte (old_pte) which can be used to build
39 * or update an HPTE. There are 2 cases: 31 * or update an HPTE. There are 2 cases:
40 * 32 *
41 * 1. There is a valid (present) pte with no associated HPTE (this is 33 * 1. There is a valid (present) pte with no associated HPTE (this is
@@ -49,9 +41,17 @@ int __hash_page_huge(unsigned long ea, unsigned long access, unsigned long vsid,
49 41
50 do { 42 do {
51 old_pte = pte_val(*ptep); 43 old_pte = pte_val(*ptep);
52 if (old_pte & _PAGE_BUSY) 44 /* If PTE busy, retry the access */
53 goto out; 45 if (unlikely(old_pte & _PAGE_BUSY))
46 return 0;
47 /* If PTE permissions don't match, take page fault */
48 if (unlikely(access & ~old_pte))
49 return 1;
50 /* Try to lock the PTE, add ACCESSED and DIRTY if it was
51 * a write access */
54 new_pte = old_pte | _PAGE_BUSY | _PAGE_ACCESSED; 52 new_pte = old_pte | _PAGE_BUSY | _PAGE_ACCESSED;
53 if (access & _PAGE_RW)
54 new_pte |= _PAGE_DIRTY;
55 } while(old_pte != __cmpxchg_u64((unsigned long *)ptep, 55 } while(old_pte != __cmpxchg_u64((unsigned long *)ptep,
56 old_pte, new_pte)); 56 old_pte, new_pte));
57 57
@@ -121,8 +121,16 @@ repeat:
121 } 121 }
122 } 122 }
123 123
124 if (unlikely(slot == -2)) 124 /*
125 panic("hash_huge_page: pte_insert failed\n"); 125 * Hypervisor failure. Restore old pte and return -1
126 * similar to __hash_page_*
127 */
128 if (unlikely(slot == -2)) {
129 *ptep = __pte(old_pte);
130 hash_failure_debug(ea, access, vsid, trap, ssize,
131 mmu_psize, old_pte);
132 return -1;
133 }
126 134
127 new_pte |= (slot << 12) & (_PAGE_F_SECOND | _PAGE_F_GIX); 135 new_pte |= (slot << 12) & (_PAGE_F_SECOND | _PAGE_F_GIX);
128 } 136 }
@@ -131,9 +139,5 @@ repeat:
131 * No need to use ldarx/stdcx here 139 * No need to use ldarx/stdcx here
132 */ 140 */
133 *ptep = __pte(new_pte & ~_PAGE_BUSY); 141 *ptep = __pte(new_pte & ~_PAGE_BUSY);
134 142 return 0;
135 err = 0;
136
137 out:
138 return err;
139} 143}
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index f47364585ecd..aa731af720c0 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -398,15 +398,15 @@ static int of_get_drconf_memory(struct device_node *memory, const u32 **dm)
398} 398}
399 399
400/* 400/*
401 * Retreive and validate the ibm,memblock-size property for drconf memory 401 * Retreive and validate the ibm,lmb-size property for drconf memory
402 * from the device tree. 402 * from the device tree.
403 */ 403 */
404static u64 of_get_memblock_size(struct device_node *memory) 404static u64 of_get_lmb_size(struct device_node *memory)
405{ 405{
406 const u32 *prop; 406 const u32 *prop;
407 u32 len; 407 u32 len;
408 408
409 prop = of_get_property(memory, "ibm,memblock-size", &len); 409 prop = of_get_property(memory, "ibm,lmb-size", &len);
410 if (!prop || len < sizeof(unsigned int)) 410 if (!prop || len < sizeof(unsigned int))
411 return 0; 411 return 0;
412 412
@@ -562,7 +562,7 @@ static unsigned long __init numa_enforce_memory_limit(unsigned long start,
562static inline int __init read_usm_ranges(const u32 **usm) 562static inline int __init read_usm_ranges(const u32 **usm)
563{ 563{
564 /* 564 /*
565 * For each memblock in ibm,dynamic-memory a corresponding 565 * For each lmb in ibm,dynamic-memory a corresponding
566 * entry in linux,drconf-usable-memory property contains 566 * entry in linux,drconf-usable-memory property contains
567 * a counter followed by that many (base, size) duple. 567 * a counter followed by that many (base, size) duple.
568 * read the counter from linux,drconf-usable-memory 568 * read the counter from linux,drconf-usable-memory
@@ -578,7 +578,7 @@ static void __init parse_drconf_memory(struct device_node *memory)
578{ 578{
579 const u32 *dm, *usm; 579 const u32 *dm, *usm;
580 unsigned int n, rc, ranges, is_kexec_kdump = 0; 580 unsigned int n, rc, ranges, is_kexec_kdump = 0;
581 unsigned long memblock_size, base, size, sz; 581 unsigned long lmb_size, base, size, sz;
582 int nid; 582 int nid;
583 struct assoc_arrays aa; 583 struct assoc_arrays aa;
584 584
@@ -586,8 +586,8 @@ static void __init parse_drconf_memory(struct device_node *memory)
586 if (!n) 586 if (!n)
587 return; 587 return;
588 588
589 memblock_size = of_get_memblock_size(memory); 589 lmb_size = of_get_lmb_size(memory);
590 if (!memblock_size) 590 if (!lmb_size)
591 return; 591 return;
592 592
593 rc = of_get_assoc_arrays(memory, &aa); 593 rc = of_get_assoc_arrays(memory, &aa);
@@ -611,7 +611,7 @@ static void __init parse_drconf_memory(struct device_node *memory)
611 continue; 611 continue;
612 612
613 base = drmem.base_addr; 613 base = drmem.base_addr;
614 size = memblock_size; 614 size = lmb_size;
615 ranges = 1; 615 ranges = 1;
616 616
617 if (is_kexec_kdump) { 617 if (is_kexec_kdump) {
@@ -1072,7 +1072,7 @@ static int hot_add_drconf_scn_to_nid(struct device_node *memory,
1072{ 1072{
1073 const u32 *dm; 1073 const u32 *dm;
1074 unsigned int drconf_cell_cnt, rc; 1074 unsigned int drconf_cell_cnt, rc;
1075 unsigned long memblock_size; 1075 unsigned long lmb_size;
1076 struct assoc_arrays aa; 1076 struct assoc_arrays aa;
1077 int nid = -1; 1077 int nid = -1;
1078 1078
@@ -1080,8 +1080,8 @@ static int hot_add_drconf_scn_to_nid(struct device_node *memory,
1080 if (!drconf_cell_cnt) 1080 if (!drconf_cell_cnt)
1081 return -1; 1081 return -1;
1082 1082
1083 memblock_size = of_get_memblock_size(memory); 1083 lmb_size = of_get_lmb_size(memory);
1084 if (!memblock_size) 1084 if (!lmb_size)
1085 return -1; 1085 return -1;
1086 1086
1087 rc = of_get_assoc_arrays(memory, &aa); 1087 rc = of_get_assoc_arrays(memory, &aa);
@@ -1100,7 +1100,7 @@ static int hot_add_drconf_scn_to_nid(struct device_node *memory,
1100 continue; 1100 continue;
1101 1101
1102 if ((scn_addr < drmem.base_addr) 1102 if ((scn_addr < drmem.base_addr)
1103 || (scn_addr >= (drmem.base_addr + memblock_size))) 1103 || (scn_addr >= (drmem.base_addr + lmb_size)))
1104 continue; 1104 continue;
1105 1105
1106 nid = of_drconf_to_nid_single(&drmem, &aa); 1106 nid = of_drconf_to_nid_single(&drmem, &aa);
diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c
index deab5f946090..bc8803664140 100644
--- a/arch/powerpc/platforms/pseries/hotplug-memory.c
+++ b/arch/powerpc/platforms/pseries/hotplug-memory.c
@@ -69,7 +69,7 @@ static int pseries_remove_memory(struct device_node *np)
69 const char *type; 69 const char *type;
70 const unsigned int *regs; 70 const unsigned int *regs;
71 unsigned long base; 71 unsigned long base;
72 unsigned int memblock_size; 72 unsigned int lmb_size;
73 int ret = -EINVAL; 73 int ret = -EINVAL;
74 74
75 /* 75 /*
@@ -87,9 +87,9 @@ static int pseries_remove_memory(struct device_node *np)
87 return ret; 87 return ret;
88 88
89 base = *(unsigned long *)regs; 89 base = *(unsigned long *)regs;
90 memblock_size = regs[3]; 90 lmb_size = regs[3];
91 91
92 ret = pseries_remove_memblock(base, memblock_size); 92 ret = pseries_remove_memblock(base, lmb_size);
93 return ret; 93 return ret;
94} 94}
95 95
@@ -98,7 +98,7 @@ static int pseries_add_memory(struct device_node *np)
98 const char *type; 98 const char *type;
99 const unsigned int *regs; 99 const unsigned int *regs;
100 unsigned long base; 100 unsigned long base;
101 unsigned int memblock_size; 101 unsigned int lmb_size;
102 int ret = -EINVAL; 102 int ret = -EINVAL;
103 103
104 /* 104 /*
@@ -116,36 +116,36 @@ static int pseries_add_memory(struct device_node *np)
116 return ret; 116 return ret;
117 117
118 base = *(unsigned long *)regs; 118 base = *(unsigned long *)regs;
119 memblock_size = regs[3]; 119 lmb_size = regs[3];
120 120
121 /* 121 /*
122 * Update memory region to represent the memory add 122 * Update memory region to represent the memory add
123 */ 123 */
124 ret = memblock_add(base, memblock_size); 124 ret = memblock_add(base, lmb_size);
125 return (ret < 0) ? -EINVAL : 0; 125 return (ret < 0) ? -EINVAL : 0;
126} 126}
127 127
128static int pseries_drconf_memory(unsigned long *base, unsigned int action) 128static int pseries_drconf_memory(unsigned long *base, unsigned int action)
129{ 129{
130 struct device_node *np; 130 struct device_node *np;
131 const unsigned long *memblock_size; 131 const unsigned long *lmb_size;
132 int rc; 132 int rc;
133 133
134 np = of_find_node_by_path("/ibm,dynamic-reconfiguration-memory"); 134 np = of_find_node_by_path("/ibm,dynamic-reconfiguration-memory");
135 if (!np) 135 if (!np)
136 return -EINVAL; 136 return -EINVAL;
137 137
138 memblock_size = of_get_property(np, "ibm,memblock-size", NULL); 138 lmb_size = of_get_property(np, "ibm,lmb-size", NULL);
139 if (!memblock_size) { 139 if (!lmb_size) {
140 of_node_put(np); 140 of_node_put(np);
141 return -EINVAL; 141 return -EINVAL;
142 } 142 }
143 143
144 if (action == PSERIES_DRCONF_MEM_ADD) { 144 if (action == PSERIES_DRCONF_MEM_ADD) {
145 rc = memblock_add(*base, *memblock_size); 145 rc = memblock_add(*base, *lmb_size);
146 rc = (rc < 0) ? -EINVAL : 0; 146 rc = (rc < 0) ? -EINVAL : 0;
147 } else if (action == PSERIES_DRCONF_MEM_REMOVE) { 147 } else if (action == PSERIES_DRCONF_MEM_REMOVE) {
148 rc = pseries_remove_memblock(*base, *memblock_size); 148 rc = pseries_remove_memblock(*base, *lmb_size);
149 } else { 149 } else {
150 rc = -EINVAL; 150 rc = -EINVAL;
151 } 151 }
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 9630fbdf4e6c..9b9d3bd54e3a 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -673,7 +673,7 @@ static struct kobject *get_device_parent(struct device *dev,
673 */ 673 */
674 if (parent == NULL) 674 if (parent == NULL)
675 parent_kobj = virtual_device_parent(dev); 675 parent_kobj = virtual_device_parent(dev);
676 else if (parent->class) 676 else if (parent->class && !dev->class->ns_type)
677 return &parent->kobj; 677 return &parent->kobj;
678 else 678 else
679 parent_kobj = &parent->kobj; 679 parent_kobj = &parent->kobj;
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index afe7e21dd0ae..1475ed6b575f 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -164,7 +164,8 @@ int virtqueue_add_buf_gfp(struct virtqueue *_vq,
164 gfp_t gfp) 164 gfp_t gfp)
165{ 165{
166 struct vring_virtqueue *vq = to_vvq(_vq); 166 struct vring_virtqueue *vq = to_vvq(_vq);
167 unsigned int i, avail, head, uninitialized_var(prev); 167 unsigned int i, avail, uninitialized_var(prev);
168 int head;
168 169
169 START_USE(vq); 170 START_USE(vq);
170 171
@@ -174,7 +175,7 @@ int virtqueue_add_buf_gfp(struct virtqueue *_vq,
174 * buffers, then go indirect. FIXME: tune this threshold */ 175 * buffers, then go indirect. FIXME: tune this threshold */
175 if (vq->indirect && (out + in) > 1 && vq->num_free) { 176 if (vq->indirect && (out + in) > 1 && vq->num_free) {
176 head = vring_add_indirect(vq, sg, out, in, gfp); 177 head = vring_add_indirect(vq, sg, out, in, gfp);
177 if (head != vq->vring.num) 178 if (likely(head >= 0))
178 goto add_head; 179 goto add_head;
179 } 180 }
180 181
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 48c5299cbf26..030a954ed292 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -63,6 +63,12 @@
63/* Align . to a 8 byte boundary equals to maximum function alignment. */ 63/* Align . to a 8 byte boundary equals to maximum function alignment. */
64#define ALIGN_FUNCTION() . = ALIGN(8) 64#define ALIGN_FUNCTION() . = ALIGN(8)
65 65
66/*
67 * Align to a 32 byte boundary equal to the
68 * alignment gcc 4.5 uses for a struct
69 */
70#define STRUCT_ALIGN() . = ALIGN(32)
71
66/* The actual configuration determine if the init/exit sections 72/* The actual configuration determine if the init/exit sections
67 * are handled as text/data or they can be discarded (which 73 * are handled as text/data or they can be discarded (which
68 * often happens at runtime) 74 * often happens at runtime)
@@ -166,7 +172,11 @@
166 LIKELY_PROFILE() \ 172 LIKELY_PROFILE() \
167 BRANCH_PROFILE() \ 173 BRANCH_PROFILE() \
168 TRACE_PRINTKS() \ 174 TRACE_PRINTKS() \
175 \
176 STRUCT_ALIGN(); \
169 FTRACE_EVENTS() \ 177 FTRACE_EVENTS() \
178 \
179 STRUCT_ALIGN(); \
170 TRACE_SYSCALLS() 180 TRACE_SYSCALLS()
171 181
172/* 182/*
@@ -435,7 +445,7 @@
435 */ 445 */
436#define INIT_TASK_DATA_SECTION(align) \ 446#define INIT_TASK_DATA_SECTION(align) \
437 . = ALIGN(align); \ 447 . = ALIGN(align); \
438 .data..init_task : { \ 448 .data..init_task : AT(ADDR(.data..init_task) - LOAD_OFFSET) { \
439 INIT_TASK_DATA(align) \ 449 INIT_TASK_DATA(align) \
440 } 450 }
441 451
diff --git a/scripts/kconfig/nconf.gui.c b/scripts/kconfig/nconf.gui.c
index 115edb437fb1..a9d9344e1365 100644
--- a/scripts/kconfig/nconf.gui.c
+++ b/scripts/kconfig/nconf.gui.c
@@ -226,7 +226,7 @@ void fill_window(WINDOW *win, const char *text)
226 int len = get_line_length(line); 226 int len = get_line_length(line);
227 strncpy(tmp, line, min(len, x)); 227 strncpy(tmp, line, min(len, x));
228 tmp[len] = '\0'; 228 tmp[len] = '\0';
229 mvwprintw(win, i, 0, tmp); 229 mvwprintw(win, i, 0, "%s", tmp);
230 } 230 }
231} 231}
232 232
diff --git a/scripts/package/Makefile b/scripts/package/Makefile
index 3a681ef25306..d2c29b63adda 100644
--- a/scripts/package/Makefile
+++ b/scripts/package/Makefile
@@ -44,7 +44,7 @@ rpm-pkg rpm: $(objtree)/kernel.spec FORCE
44 fi 44 fi
45 $(MAKE) clean 45 $(MAKE) clean
46 $(PREV) ln -sf $(srctree) $(KERNELPATH) 46 $(PREV) ln -sf $(srctree) $(KERNELPATH)
47 $(CONFIG_SHELL) $(srctree)/scripts/setlocalversion --scm-only > $(objtree)/.scmversion 47 $(CONFIG_SHELL) $(srctree)/scripts/setlocalversion --save-scmversion
48 $(PREV) tar -cz $(RCS_TAR_IGNORE) -f $(KERNELPATH).tar.gz $(KERNELPATH)/. 48 $(PREV) tar -cz $(RCS_TAR_IGNORE) -f $(KERNELPATH).tar.gz $(KERNELPATH)/.
49 $(PREV) rm $(KERNELPATH) 49 $(PREV) rm $(KERNELPATH)
50 rm -f $(objtree)/.scmversion 50 rm -f $(objtree)/.scmversion
diff --git a/scripts/setlocalversion b/scripts/setlocalversion
index d6a866ed1835..64a9cb5556cd 100755
--- a/scripts/setlocalversion
+++ b/scripts/setlocalversion
@@ -10,13 +10,13 @@
10# 10#
11 11
12usage() { 12usage() {
13 echo "Usage: $0 [--scm-only] [srctree]" >&2 13 echo "Usage: $0 [--save-scmversion] [srctree]" >&2
14 exit 1 14 exit 1
15} 15}
16 16
17scm_only=false 17scm_only=false
18srctree=. 18srctree=.
19if test "$1" = "--scm-only"; then 19if test "$1" = "--save-scmversion"; then
20 scm_only=true 20 scm_only=true
21 shift 21 shift
22fi 22fi
@@ -30,11 +30,12 @@ fi
30 30
31scm_version() 31scm_version()
32{ 32{
33 local short=false 33 local short
34 short=false
34 35
35 cd "$srctree" 36 cd "$srctree"
36 if test -e .scmversion; then 37 if test -e .scmversion; then
37 cat "$_" 38 cat .scmversion
38 return 39 return
39 fi 40 fi
40 if test "$1" = "--short"; then 41 if test "$1" = "--short"; then
@@ -131,12 +132,15 @@ collect_files()
131} 132}
132 133
133if $scm_only; then 134if $scm_only; then
134 scm_version 135 if test ! -e .scmversion; then
136 res=$(scm_version)
137 echo "$res" >.scmversion
138 fi
135 exit 139 exit
136fi 140fi
137 141
138if test -e include/config/auto.conf; then 142if test -e include/config/auto.conf; then
139 source "$_" 143 . include/config/auto.conf
140else 144else
141 echo "Error: kernelrelease not valid - run 'make prepare' to update it" 145 echo "Error: kernelrelease not valid - run 'make prepare' to update it"
142 exit 1 146 exit 1
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 3d8f31ed771d..d75c28a825f5 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -600,30 +600,32 @@ endif
600 600
601ifdef NO_DEMANGLE 601ifdef NO_DEMANGLE
602 BASIC_CFLAGS += -DNO_DEMANGLE 602 BASIC_CFLAGS += -DNO_DEMANGLE
603else ifdef HAVE_CPLUS_DEMANGLE
604 EXTLIBS += -liberty
605 BASIC_CFLAGS += -DHAVE_CPLUS_DEMANGLE
606else 603else
607 has_bfd := $(shell sh -c "(echo '\#include <bfd.h>'; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -lbfd "$(QUIET_STDERR)" && echo y") 604 ifdef HAVE_CPLUS_DEMANGLE
608 605 EXTLIBS += -liberty
609 ifeq ($(has_bfd),y) 606 BASIC_CFLAGS += -DHAVE_CPLUS_DEMANGLE
610 EXTLIBS += -lbfd
611 else 607 else
612 has_bfd_iberty := $(shell sh -c "(echo '\#include <bfd.h>'; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -lbfd -liberty "$(QUIET_STDERR)" && echo y") 608 has_bfd := $(shell sh -c "(echo '\#include <bfd.h>'; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -lbfd "$(QUIET_STDERR)" && echo y")
613 ifeq ($(has_bfd_iberty),y) 609
614 EXTLIBS += -lbfd -liberty 610 ifeq ($(has_bfd),y)
611 EXTLIBS += -lbfd
615 else 612 else
616 has_bfd_iberty_z := $(shell sh -c "(echo '\#include <bfd.h>'; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -lbfd -liberty -lz "$(QUIET_STDERR)" && echo y") 613 has_bfd_iberty := $(shell sh -c "(echo '\#include <bfd.h>'; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -lbfd -liberty "$(QUIET_STDERR)" && echo y")
617 ifeq ($(has_bfd_iberty_z),y) 614 ifeq ($(has_bfd_iberty),y)
618 EXTLIBS += -lbfd -liberty -lz 615 EXTLIBS += -lbfd -liberty
619 else 616 else
620 has_cplus_demangle := $(shell sh -c "(echo 'extern char *cplus_demangle(const char *, int);'; echo 'int main(void) { cplus_demangle(0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -liberty "$(QUIET_STDERR)" && echo y") 617 has_bfd_iberty_z := $(shell sh -c "(echo '\#include <bfd.h>'; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -lbfd -liberty -lz "$(QUIET_STDERR)" && echo y")
621 ifeq ($(has_cplus_demangle),y) 618 ifeq ($(has_bfd_iberty_z),y)
622 EXTLIBS += -liberty 619 EXTLIBS += -lbfd -liberty -lz
623 BASIC_CFLAGS += -DHAVE_CPLUS_DEMANGLE
624 else 620 else
625 msg := $(warning No bfd.h/libbfd found, install binutils-dev[el]/zlib-static to gain symbol demangling) 621 has_cplus_demangle := $(shell sh -c "(echo 'extern char *cplus_demangle(const char *, int);'; echo 'int main(void) { cplus_demangle(0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -liberty "$(QUIET_STDERR)" && echo y")
626 BASIC_CFLAGS += -DNO_DEMANGLE 622 ifeq ($(has_cplus_demangle),y)
623 EXTLIBS += -liberty
624 BASIC_CFLAGS += -DHAVE_CPLUS_DEMANGLE
625 else
626 msg := $(warning No bfd.h/libbfd found, install binutils-dev[el]/zlib-static to gain symbol demangling)
627 BASIC_CFLAGS += -DNO_DEMANGLE
628 endif
627 endif 629 endif
628 endif 630 endif
629 endif 631 endif
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 07f89b66b318..784ee0bdda77 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -631,9 +631,14 @@ int hist_entry__fprintf(struct hist_entry *self, struct hists *pair_hists,
631 u64 session_total) 631 u64 session_total)
632{ 632{
633 char bf[512]; 633 char bf[512];
634 hist_entry__snprintf(self, bf, sizeof(bf), pair_hists, 634 int ret;
635 show_displacement, displacement, 635
636 true, session_total); 636 ret = hist_entry__snprintf(self, bf, sizeof(bf), pair_hists,
637 show_displacement, displacement,
638 true, session_total);
639 if (!ret)
640 return 0;
641
637 return fprintf(fp, "%s\n", bf); 642 return fprintf(fp, "%s\n", bf);
638} 643}
639 644
@@ -762,6 +767,7 @@ size_t hists__fprintf(struct hists *self, struct hists *pair,
762print_entries: 767print_entries:
763 for (nd = rb_first(&self->entries); nd; nd = rb_next(nd)) { 768 for (nd = rb_first(&self->entries); nd; nd = rb_next(nd)) {
764 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node); 769 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
770 int cnt;
765 771
766 if (show_displacement) { 772 if (show_displacement) {
767 if (h->pair != NULL) 773 if (h->pair != NULL)
@@ -771,8 +777,13 @@ print_entries:
771 displacement = 0; 777 displacement = 0;
772 ++position; 778 ++position;
773 } 779 }
774 ret += hist_entry__fprintf(h, pair, show_displacement, 780 cnt = hist_entry__fprintf(h, pair, show_displacement,
775 displacement, fp, self->stats.total_period); 781 displacement, fp, self->stats.total_period);
782 /* Ignore those that didn't match the parent filter */
783 if (!cnt)
784 continue;
785
786 ret += cnt;
776 787
777 if (symbol_conf.use_callchain) 788 if (symbol_conf.use_callchain)
778 ret += hist_entry__fprintf_callchain(h, fp, self->stats.total_period); 789 ret += hist_entry__fprintf_callchain(h, fp, self->stats.total_period);
@@ -965,13 +976,17 @@ static int hist_entry__parse_objdump_line(struct hist_entry *self, FILE *file,
965 * Parse hexa addresses followed by ':' 976 * Parse hexa addresses followed by ':'
966 */ 977 */
967 line_ip = strtoull(tmp, &tmp2, 16); 978 line_ip = strtoull(tmp, &tmp2, 16);
968 if (*tmp2 != ':' || tmp == tmp2) 979 if (*tmp2 != ':' || tmp == tmp2 || tmp2[1] == '\0')
969 line_ip = -1; 980 line_ip = -1;
970 } 981 }
971 982
972 if (line_ip != -1) { 983 if (line_ip != -1) {
973 u64 start = map__rip_2objdump(self->ms.map, sym->start); 984 u64 start = map__rip_2objdump(self->ms.map, sym->start),
985 end = map__rip_2objdump(self->ms.map, sym->end);
986
974 offset = line_ip - start; 987 offset = line_ip - start;
988 if (offset < 0 || (u64)line_ip > end)
989 offset = -1;
975 } 990 }
976 991
977 objdump_line = objdump_line__new(offset, line); 992 objdump_line = objdump_line__new(offset, line);
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index b63e5713849f..5b276833e2bf 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1443,6 +1443,7 @@ static int map_groups__set_modules_path_dir(struct map_groups *self,
1443{ 1443{
1444 struct dirent *dent; 1444 struct dirent *dent;
1445 DIR *dir = opendir(dir_name); 1445 DIR *dir = opendir(dir_name);
1446 int ret = 0;
1446 1447
1447 if (!dir) { 1448 if (!dir) {
1448 pr_debug("%s: cannot open %s dir\n", __func__, dir_name); 1449 pr_debug("%s: cannot open %s dir\n", __func__, dir_name);
@@ -1465,8 +1466,9 @@ static int map_groups__set_modules_path_dir(struct map_groups *self,
1465 1466
1466 snprintf(path, sizeof(path), "%s/%s", 1467 snprintf(path, sizeof(path), "%s/%s",
1467 dir_name, dent->d_name); 1468 dir_name, dent->d_name);
1468 if (map_groups__set_modules_path_dir(self, path) < 0) 1469 ret = map_groups__set_modules_path_dir(self, path);
1469 goto failure; 1470 if (ret < 0)
1471 goto out;
1470 } else { 1472 } else {
1471 char *dot = strrchr(dent->d_name, '.'), 1473 char *dot = strrchr(dent->d_name, '.'),
1472 dso_name[PATH_MAX]; 1474 dso_name[PATH_MAX];
@@ -1487,17 +1489,18 @@ static int map_groups__set_modules_path_dir(struct map_groups *self,
1487 dir_name, dent->d_name); 1489 dir_name, dent->d_name);
1488 1490
1489 long_name = strdup(path); 1491 long_name = strdup(path);
1490 if (long_name == NULL) 1492 if (long_name == NULL) {
1491 goto failure; 1493 ret = -1;
1494 goto out;
1495 }
1492 dso__set_long_name(map->dso, long_name); 1496 dso__set_long_name(map->dso, long_name);
1493 dso__kernel_module_get_build_id(map->dso, ""); 1497 dso__kernel_module_get_build_id(map->dso, "");
1494 } 1498 }
1495 } 1499 }
1496 1500
1497 return 0; 1501out:
1498failure:
1499 closedir(dir); 1502 closedir(dir);
1500 return -1; 1503 return ret;
1501} 1504}
1502 1505
1503static char *get_kernel_version(const char *root_dir) 1506static char *get_kernel_version(const char *root_dir)
generated by cgit v1.2.2 (git 2.25.0) at 2025-10-31 17:38:52 -0400