21 files changed, 72 insertions, 87 deletions

diff --git a/include/asm-blackfin/bfin-global.h b/include/asm-blackfin/bfin-global.h
index 716df7c85923..a9248d883675 100644
--- a/include/asm-blackfin/bfin-global.h
+++ b/include/asm-blackfin/bfin-global.h
@@ -37,7 +37,9 @@
 #include <linux/linkage.h>
 #include <linux/types.h>
 
-#if defined(CONFIG_DMA_UNCACHED_2M)
+#if defined(CONFIG_DMA_UNCACHED_4M)
+# define DMA_UNCACHED_REGION (4 * 1024 * 1024)
+#elif defined(CONFIG_DMA_UNCACHED_2M)
 # define DMA_UNCACHED_REGION (2 * 1024 * 1024)
 #elif defined(CONFIG_DMA_UNCACHED_1M)
 # define DMA_UNCACHED_REGION (1024 * 1024)
diff --git a/include/asm-blackfin/checksum.h b/include/asm-blackfin/checksum.h
index 2638f2586d2f..6f6af2b8e9e0 100644
--- a/include/asm-blackfin/checksum.h
+++ b/include/asm-blackfin/checksum.h
@@ -15,7 +15,7 @@
  *
  * it's best to have buff aligned on a 32-bit boundary
  */
-unsigned int csum_partial(const unsigned char *buff, int len, unsigned int sum);
+__wsum csum_partial(const void *buff, int len, __wsum sum);
 
 /*
  * the same as csum_partial, but copies from src while it
@@ -25,8 +25,8 @@ unsigned int csum_partial(const unsigned char *buff, int len, unsigned int sum);
  * better 64-bit) boundary
  */
 
-unsigned int csum_partial_copy(const unsigned char *src, unsigned char *dst,
-                               int len, int sum);
+__wsum csum_partial_copy(const void *src, void *dst,
+                               int len, __wsum sum);
 
 /*
  * the same as csum_partial_copy, but copies from user space.
@@ -35,20 +35,19 @@ unsigned int csum_partial_copy(const unsigned char *src, unsigned char *dst,
  * better 64-bit) boundary
  */
 
-extern unsigned int csum_partial_copy_from_user(const unsigned char *src,
-                                                unsigned char *dst, int len,
-                                                int sum, int *csum_err);
+extern __wsum csum_partial_copy_from_user(const void __user *src, void *dst,
+                                          int len, __wsum sum, int *csum_err);
 
 #define csum_partial_copy_nocheck(src, dst, len, sum)   \
         csum_partial_copy((src), (dst), (len), (sum))
 
-unsigned short ip_fast_csum(unsigned char *iph, unsigned int ihl);
+__sum16 ip_fast_csum(unsigned char *iph, unsigned int ihl);
 
 /*
  *      Fold a partial checksum
  */
 
-static inline unsigned int csum_fold(unsigned int sum)
+static inline __sum16 csum_fold(__wsum sum)
 {
         while (sum >> 16)
                 sum = (sum & 0xffff) + (sum >> 16);
@@ -60,9 +59,9 @@ static inline unsigned int csum_fold(unsigned int sum)
  * returns a 16-bit checksum, already complemented
  */
 
-static inline unsigned int
-csum_tcpudp_nofold(unsigned long saddr, unsigned long daddr, unsigned short len,
-                   unsigned short proto, unsigned int sum)
+static inline __wsum
+csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len,
+                   unsigned short proto, __wsum sum)
 {
 
         __asm__ ("%0 = %0 + %1;\n\t"
@@ -84,9 +83,9 @@ csum_tcpudp_nofold(unsigned long saddr, unsigned long daddr, unsigned short len,
         return (sum);
 }
 
-static inline unsigned short int
-csum_tcpudp_magic(unsigned long saddr, unsigned long daddr, unsigned short len,
-                  unsigned short proto, unsigned int sum)
+static inline __sum16
+csum_tcpudp_magic(__be32 saddr, __be32 daddr, unsigned short len,
+                  unsigned short proto, __wsum sum)
 {
         return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum));
 }
@@ -96,6 +95,6 @@ csum_tcpudp_magic(unsigned long saddr, unsigned long daddr, unsigned short len,
  * in icmp.c
  */
 
-extern unsigned short ip_compute_csum(const unsigned char *buff, int len);
+extern __sum16 ip_compute_csum(const void *buff, int len);
 
 #endif                          /* _BFIN_CHECKSUM_H */
diff --git a/include/asm-blackfin/gpio.h b/include/asm-blackfin/gpio.h
index 27ff532a806c..ff95e9d88342 100644
--- a/include/asm-blackfin/gpio.h
+++ b/include/asm-blackfin/gpio.h
@@ -437,7 +437,6 @@ void gpio_set_value(unsigned gpio, int arg);
 int gpio_get_value(unsigned gpio);
 
 #ifndef BF548_FAMILY
-#define gpio_get_value(gpio)            get_gpio_data(gpio)
 #define gpio_set_value(gpio, value)     set_gpio_data(gpio, value)
 #endif
 
diff --git a/include/asm-blackfin/io.h b/include/asm-blackfin/io.h
index 574fe56989d1..cbbf7ffdbbff 100644
--- a/include/asm-blackfin/io.h
+++ b/include/asm-blackfin/io.h
@@ -117,10 +117,12 @@ static inline unsigned int readl(const volatile void __iomem *addr)
 
 extern void outsb(unsigned long port, const void *addr, unsigned long count);
 extern void outsw(unsigned long port, const void *addr, unsigned long count);
+extern void outsw_8(unsigned long port, const void *addr, unsigned long count);
 extern void outsl(unsigned long port, const void *addr, unsigned long count);
 
 extern void insb(unsigned long port, void *addr, unsigned long count);
 extern void insw(unsigned long port, void *addr, unsigned long count);
+extern void insw_8(unsigned long port, void *addr, unsigned long count);
 extern void insl(unsigned long port, void *addr, unsigned long count);
 extern void insl_16(unsigned long port, void *addr, unsigned long count);
 
diff --git a/include/asm-blackfin/mach-bf527/blackfin.h b/include/asm-blackfin/mach-bf527/blackfin.h
index 2891727b6176..297821e2d79a 100644
--- a/include/asm-blackfin/mach-bf527/blackfin.h
+++ b/include/asm-blackfin/mach-bf527/blackfin.h
@@ -39,22 +39,22 @@
 #include "defBF522.h"
 #include "anomaly.h"
 
-#if defined(CONFIG_BF527)
+#if defined(CONFIG_BF527) || defined(CONFIG_BF526)
 #include "defBF527.h"
 #endif
 
-#if defined(CONFIG_BF525)
+#if defined(CONFIG_BF525) || defined(CONFIG_BF524)
 #include "defBF525.h"
 #endif
 
 #if !defined(__ASSEMBLY__)
 #include "cdefBF522.h"
 
-#if defined(CONFIG_BF527)
+#if defined(CONFIG_BF527) || defined(CONFIG_BF526)
 #include "cdefBF527.h"
 #endif
 
-#if defined(CONFIG_BF525)
+#if defined(CONFIG_BF525) || defined(CONFIG_BF524)
 #include "cdefBF525.h"
 #endif
 #endif
diff --git a/include/asm-blackfin/mach-bf561/dma.h b/include/asm-blackfin/mach-bf561/dma.h
index 21d982003e75..8bc46cd89a02 100644
--- a/include/asm-blackfin/mach-bf561/dma.h
+++ b/include/asm-blackfin/mach-bf561/dma.h
@@ -25,11 +25,11 @@
 #define CH_MEM_STREAM1_SRC      27       /* RX */
 #define CH_MEM_STREAM2_DEST     28
 #define CH_MEM_STREAM2_SRC      29
-#define CH_MEM_STREAM3_SRC      30
-#define CH_MEM_STREAM3_DEST     31
+#define CH_MEM_STREAM3_DEST     30
+#define CH_MEM_STREAM3_SRC      31
 #define CH_IMEM_STREAM0_DEST    32
 #define CH_IMEM_STREAM0_SRC     33
-#define CH_IMEM_STREAM1_SRC     34
-#define CH_IMEM_STREAM1_DEST    35
+#define CH_IMEM_STREAM1_DEST    34
+#define CH_IMEM_STREAM1_SRC     35
 
 #endif
diff --git a/include/asm-blackfin/serial.h b/include/asm-blackfin/serial.h
new file mode 100644
index 000000000000..994dd869558c
--- /dev/null
+++ b/include/asm-blackfin/serial.h
@@ -0,0 +1,5 @@
+/*
+ * include/asm-blackfin/serial.h
+ */
+
+#define SERIAL_EXTRA_IRQ_FLAGS IRQF_TRIGGER_HIGH
diff --git a/include/asm-ia64/kvm.h b/include/asm-ia64/kvm.h
index eb2d3559d089..3f6a090cbd9a 100644
--- a/include/asm-ia64/kvm.h
+++ b/include/asm-ia64/kvm.h
@@ -22,14 +22,13 @@
  */
 
 #include <asm/types.h>
-#include <asm/fpu.h>
 
 #include <linux/ioctl.h>
 
 /* Architectural interrupt line count. */
 #define KVM_NR_INTERRUPTS 256
 
-#define KVM_IOAPIC_NUM_PINS  24
+#define KVM_IOAPIC_NUM_PINS  48
 
 struct kvm_ioapic_state {
         __u64 base_address;
@@ -61,6 +60,13 @@ struct kvm_ioapic_state {
 
 #define KVM_CONTEXT_SIZE        8*1024
 
+struct kvm_fpreg {
+        union {
+                unsigned long bits[2];
+                long double __dummy;    /* force 16-byte alignment */
+        } u;
+};
+
 union context {
         /* 8K size */
         char    dummy[KVM_CONTEXT_SIZE];
@@ -77,7 +83,7 @@ union context {
                 unsigned long       ibr[8];
                 unsigned long       dbr[8];
                 unsigned long       pkr[8];
-                struct ia64_fpreg   fr[128];
+                struct kvm_fpreg   fr[128];
         };
 };
 
diff --git a/include/asm-sh/kgdb.h b/include/asm-sh/kgdb.h
index 4bc8cb187d11..24e42078f36f 100644
--- a/include/asm-sh/kgdb.h
+++ b/include/asm-sh/kgdb.h
@@ -66,18 +66,4 @@ extern int     setjmp(jmp_buf __jmpb);
 /* Forced breakpoint */
 #define breakpoint()    __asm__ __volatile__("trapa   #0x3c")
 
-/* Taken from sh-stub.c of GDB 4.18 */
-static const char hexchars[] = "0123456789abcdef";
-
-/* Get high hex bits */
-static inline char highhex(const int x)
-{
-        return hexchars[(x >> 4) & 0xf];
-}
-
-/* Get low hex bits */
-static inline char lowhex(const int x)
-{
-        return hexchars[x & 0xf];
-}
 #endif
diff --git a/include/asm-x86/kvm_x86_emulate.h b/include/asm-x86/kvm_x86_emulate.h
index d6337f941c98..b877bbd2d3a7 100644
--- a/include/asm-x86/kvm_x86_emulate.h
+++ b/include/asm-x86/kvm_x86_emulate.h
@@ -135,6 +135,7 @@ struct decode_cache {
         u8 modrm_rm;
         u8 use_modrm_ea;
         unsigned long modrm_ea;
+        void *modrm_ptr;
         unsigned long modrm_val;
         struct fetch_cache fetch;
 };
diff --git a/include/asm-x86/page.h b/include/asm-x86/page.h
index b381f4a5a0bd..dc936dddf161 100644
--- a/include/asm-x86/page.h
+++ b/include/asm-x86/page.h
@@ -10,8 +10,16 @@
 
 #ifdef __KERNEL__
 
-#define PHYSICAL_PAGE_MASK      (PAGE_MASK & __PHYSICAL_MASK)
-#define PTE_MASK                (_AT(long, PHYSICAL_PAGE_MASK))
+#define __PHYSICAL_MASK         ((phys_addr_t)(1ULL << __PHYSICAL_MASK_SHIFT) - 1)
+#define __VIRTUAL_MASK          ((1UL << __VIRTUAL_MASK_SHIFT) - 1)
+
+/* Cast PAGE_MASK to a signed type so that it is sign-extended if
+   virtual addresses are 32-bits but physical addresses are larger
+   (ie, 32-bit PAE). */
+#define PHYSICAL_PAGE_MASK      (((signed long)PAGE_MASK) & __PHYSICAL_MASK)
+
+/* PTE_MASK extracts the PFN from a (pte|pmd|pud|pgd)val_t */
+#define PTE_MASK                ((pteval_t)PHYSICAL_PAGE_MASK)
 
 #define PMD_PAGE_SIZE           (_AC(1, UL) << PMD_SHIFT)
 #define PMD_PAGE_MASK           (~(PMD_PAGE_SIZE-1))
@@ -24,9 +32,6 @@
 /* to align the pointer to the (next) page boundary */
 #define PAGE_ALIGN(addr)        (((addr)+PAGE_SIZE-1)&PAGE_MASK)
 
-#define __PHYSICAL_MASK         _AT(phys_addr_t, (_AC(1,ULL) << __PHYSICAL_MASK_SHIFT) - 1)
-#define __VIRTUAL_MASK          ((_AC(1,UL) << __VIRTUAL_MASK_SHIFT) - 1)
-
 #ifndef __ASSEMBLY__
 #include <linux/types.h>
 #endif
diff --git a/include/asm-x86/pgtable-3level.h b/include/asm-x86/pgtable-3level.h
index 8b4a9d44b7f4..c93dbb6c2624 100644
--- a/include/asm-x86/pgtable-3level.h
+++ b/include/asm-x86/pgtable-3level.h
@@ -120,9 +120,9 @@ static inline void pud_clear(pud_t *pudp)
                 write_cr3(pgd);
 }
 
-#define pud_page(pud) ((struct page *) __va(pud_val(pud) & PAGE_MASK))
+#define pud_page(pud) ((struct page *) __va(pud_val(pud) & PTE_MASK))
 
-#define pud_page_vaddr(pud) ((unsigned long) __va(pud_val(pud) & PAGE_MASK))
+#define pud_page_vaddr(pud) ((unsigned long) __va(pud_val(pud) & PTE_MASK))
 
 
 /* Find an entry in the second-level page table.. */
@@ -160,7 +160,7 @@ static inline int pte_none(pte_t pte)
 
 static inline unsigned long pte_pfn(pte_t pte)
 {
-        return (pte_val(pte) & ~_PAGE_NX) >> PAGE_SHIFT;
+        return (pte_val(pte) & PTE_MASK) >> PAGE_SHIFT;
 }
 
 /*
diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h
index 55c3a0e3a8ce..97c271b2910b 100644
--- a/include/asm-x86/pgtable.h
+++ b/include/asm-x86/pgtable.h
@@ -57,6 +57,7 @@
 #define _KERNPG_TABLE   (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED |    \
                          _PAGE_DIRTY)
 
+/* Set of bits not changed in pte_modify */
 #define _PAGE_CHG_MASK  (PTE_MASK | _PAGE_PCD | _PAGE_PWT |             \
                          _PAGE_ACCESSED | _PAGE_DIRTY)
 
@@ -304,7 +305,7 @@ static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot)
         return __pgprot(preservebits | addbits);
 }
 
-#define pte_pgprot(x) __pgprot(pte_val(x) & (0xfff | _PAGE_NX))
+#define pte_pgprot(x) __pgprot(pte_val(x) & ~PTE_MASK)
 
 #define canon_pgprot(p) __pgprot(pgprot_val(p) & __supported_pte_mask)
 
diff --git a/include/asm-x86/pgtable_32.h b/include/asm-x86/pgtable_32.h
index d7f0403bbecb..32ca03109a4c 100644
--- a/include/asm-x86/pgtable_32.h
+++ b/include/asm-x86/pgtable_32.h
@@ -88,7 +88,7 @@ extern unsigned long pg0[];
 /* To avoid harmful races, pmd_none(x) should check only the lower when PAE */
 #define pmd_none(x)     (!(unsigned long)pmd_val((x)))
 #define pmd_present(x)  (pmd_val((x)) & _PAGE_PRESENT)
-#define pmd_bad(x) ((pmd_val(x) & (~PAGE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE)
+#define pmd_bad(x) ((pmd_val(x) & (~PTE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE)
 
 #define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT))
 
@@ -159,7 +159,7 @@ static inline int pud_large(pud_t pud) { return 0; }
 #define pmd_page(pmd) (pfn_to_page(pmd_val((pmd)) >> PAGE_SHIFT))
 
 #define pmd_page_vaddr(pmd)                                     \
-        ((unsigned long)__va(pmd_val((pmd)) & PAGE_MASK))
+        ((unsigned long)__va(pmd_val((pmd)) & PTE_MASK))
 
 #if defined(CONFIG_HIGHPTE)
 #define pte_offset_map(dir, address)                                    \
diff --git a/include/asm-x86/pgtable_64.h b/include/asm-x86/pgtable_64.h
index efe83dcbd412..1cc50d22d735 100644
--- a/include/asm-x86/pgtable_64.h
+++ b/include/asm-x86/pgtable_64.h
@@ -151,19 +151,19 @@ static inline void native_pgd_clear(pgd_t *pgd)
 
 #ifndef __ASSEMBLY__
 
-static inline unsigned long pgd_bad(pgd_t pgd)
+static inline int pgd_bad(pgd_t pgd)
 {
-        return pgd_val(pgd) & ~(PTE_MASK | _KERNPG_TABLE | _PAGE_USER);
+        return (pgd_val(pgd) & ~(PTE_MASK | _PAGE_USER)) != _KERNPG_TABLE;
 }
 
-static inline unsigned long pud_bad(pud_t pud)
+static inline int pud_bad(pud_t pud)
 {
-        return pud_val(pud) & ~(PTE_MASK | _KERNPG_TABLE | _PAGE_USER);
+        return (pud_val(pud) & ~(PTE_MASK | _PAGE_USER)) != _KERNPG_TABLE;
 }
 
-static inline unsigned long pmd_bad(pmd_t pmd)
+static inline int pmd_bad(pmd_t pmd)
 {
-        return pmd_val(pmd) & ~(PTE_MASK | _KERNPG_TABLE | _PAGE_USER);
+        return (pmd_val(pmd) & ~(PTE_MASK | _PAGE_USER)) != _KERNPG_TABLE;
 }
 
 #define pte_none(x)     (!pte_val((x)))
diff --git a/include/asm-x86/xen/page.h b/include/asm-x86/xen/page.h
index 01799305f02a..baf3a4dce28c 100644
--- a/include/asm-x86/xen/page.h
+++ b/include/asm-x86/xen/page.h
@@ -127,7 +127,7 @@ static inline void set_phys_to_machine(unsigned long pfn, unsigned long mfn)
 
 static inline unsigned long pte_mfn(pte_t pte)
 {
-        return (pte.pte & ~_PAGE_NX) >> PAGE_SHIFT;
+        return (pte.pte & PTE_MASK) >> PAGE_SHIFT;
 }
 
 static inline pte_t mfn_pte(unsigned long page_nr, pgprot_t pgprot)
diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index b7d81b2a9041..5dfa739045c8 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -105,7 +105,6 @@ header-y += ixjuser.h
 header-y += jffs2.h
 header-y += keyctl.h
 header-y += limits.h
-header-y += dlm_plock.h
 header-y += magic.h
 header-y += major.h
 header-y += matroxfb.h
@@ -190,6 +189,7 @@ unifdef-y += cyclades.h
 unifdef-y += dccp.h
 unifdef-y += dirent.h
 unifdef-y += dlm.h
+unifdef-y += dlm_plock.h
 unifdef-y += edd.h
 unifdef-y += elf.h
 unifdef-y += elfcore.h
diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
index b512e48f6d8e..ee0ed48e8348 100644
--- a/include/linux/binfmts.h
+++ b/include/linux/binfmts.h
@@ -99,6 +99,7 @@ extern int copy_strings_kernel(int argc,char ** argv,struct linux_binprm *bprm);
 extern void compute_creds(struct linux_binprm *binprm);
 extern int do_coredump(long signr, int exit_code, struct pt_regs * regs);
 extern int set_binfmt(struct linux_binfmt *new);
+extern void free_bprm(struct linux_binprm *);
 
 #endif /* __KERNEL__ */
 #endif /* _LINUX_BINFMTS_H */
diff --git a/include/linux/fdtable.h b/include/linux/fdtable.h
index a118f3c0b240..4aab6f12cfab 100644
--- a/include/linux/fdtable.h
+++ b/include/linux/fdtable.h
@@ -93,6 +93,7 @@ struct files_struct *get_files_struct(struct task_struct *);
 void put_files_struct(struct files_struct *fs);
 void reset_files_struct(struct files_struct *);
 int unshare_files(struct files_struct **);
+struct files_struct *dup_fd(struct files_struct *, int *);
 
 extern struct kmem_cache *files_cachep;
 
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index b24c2875aa05..9927a88674a3 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -1,7 +1,6 @@
 #ifndef _LINUX__INIT_TASK_H
 #define _LINUX__INIT_TASK_H
 
-#include <linux/fdtable.h>
 #include <linux/rcupdate.h>
 #include <linux/irqflags.h>
 #include <linux/utsname.h>
@@ -12,27 +11,7 @@
 #include <linux/securebits.h>
 #include <net/net_namespace.h>
 
-#define INIT_FDTABLE \
-{                                                       \
-        .max_fds        = NR_OPEN_DEFAULT,              \
-        .fd             = &init_files.fd_array[0],      \
-        .close_on_exec  = (fd_set *)&init_files.close_on_exec_init, \
-        .open_fds       = (fd_set *)&init_files.open_fds_init,  \
-        .rcu            = RCU_HEAD_INIT,                \
-        .next           = NULL,                         \
-}
-
-#define INIT_FILES \
-{                                                       \
-        .count          = ATOMIC_INIT(1),               \
-        .fdt            = &init_files.fdtab,            \
-        .fdtab          = INIT_FDTABLE,                 \
-        .file_lock      = __SPIN_LOCK_UNLOCKED(init_task.file_lock), \
-        .next_fd        = 0,                            \
-        .close_on_exec_init = { { 0, } },               \
-        .open_fds_init  = { { 0, } },                   \
-        .fd_array       = { NULL, }                     \
-}
+extern struct files_struct init_files;
 
 #define INIT_KIOCTX(name, which_mm) \
 {                                                       \
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 0f17643e0a6e..4a92fbafce9d 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -341,7 +341,7 @@ enum {
         ATA_EH_PMP_TRIES        = 5,
         ATA_EH_PMP_LINK_TRIES   = 3,
 
-        SATA_PMP_SCR_TIMEOUT    = 250,
+        SATA_PMP_RW_TIMEOUT     = 3000,         /* PMP read/write timeout */
 
         /* Horkage types. May be set by libata or controller on drives
            (some horkage may be drive/controller pair dependant */
@@ -351,7 +351,7 @@ enum {
         ATA_HORKAGE_NONCQ       = (1 << 2),     /* Don't use NCQ */
         ATA_HORKAGE_MAX_SEC_128 = (1 << 3),     /* Limit max sects to 128 */
         ATA_HORKAGE_BROKEN_HPA  = (1 << 4),     /* Broken HPA */
-        ATA_HORKAGE_SKIP_PM     = (1 << 5),     /* Skip PM operations */
+        ATA_HORKAGE_DISABLE     = (1 << 5),     /* Disable it */
         ATA_HORKAGE_HPA_SIZE    = (1 << 6),     /* native size off by one */
         ATA_HORKAGE_IPM         = (1 << 7),     /* Link PM problems */
         ATA_HORKAGE_IVB         = (1 << 8),     /* cbl det validity bit bugs */
@@ -821,8 +821,6 @@ struct ata_timing {
         unsigned short udma;            /* t2CYCTYP/2 */
 };
 
-#define FIT(v, vmin, vmax)      max_t(short, min_t(short, v, vmax), vmin)
-
 /*
  * Core layer - drivers/ata/libata-core.c
  */