[PATCH] Transform kmem_cache_alloc()+memset(0) -> kmem_cache_zalloc().

Replace appropriate pairs of "kmem_cache_alloc()" + "memset(0)" with the
corresponding "kmem_cache_zalloc()" call.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Andi Kleen <ak@muc.de>
Cc: Roland McGrath <roland@redhat.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Greg KH <greg@kroah.com>
Acked-by: Joel Becker <Joel.Becker@oracle.com>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Cc: Jan Kara <jack@ucw.cz>
Cc: Michael Halcrow <mhalcrow@us.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Cc: James Morris <jmorris@namei.org>
Cc: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 9 deletions

diff --git a/arch/ia64/ia32/binfmt_elf32.c b/arch/ia64/ia32/binfmt_elf32.c
index 578737ec7629..c05bda662364 100644
--- a/arch/ia64/ia32/binfmt_elf32.c
+++ b/arch/ia64/ia32/binfmt_elf32.c
@@ -91,9 +91,8 @@ ia64_elf32_init (struct pt_regs *regs)
          * it with privilege level 3 because the IVE uses non-privileged accesses to these
          * tables.  IA-32 segmentation is used to protect against IA-32 accesses to them.
          */
-        vma = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
+        vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
         if (vma) {
-                memset(vma, 0, sizeof(*vma));
                 vma->vm_mm = current->mm;
                 vma->vm_start = IA32_GDT_OFFSET;
                 vma->vm_end = vma->vm_start + PAGE_SIZE;
@@ -117,9 +116,8 @@ ia64_elf32_init (struct pt_regs *regs)
          * code is locked in specific gate page, which is pointed by pretcode
          * when setup_frame_ia32
          */
-        vma = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
+        vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
         if (vma) {
-                memset(vma, 0, sizeof(*vma));
                 vma->vm_mm = current->mm;
                 vma->vm_start = IA32_GATE_OFFSET;
                 vma->vm_end = vma->vm_start + PAGE_SIZE;
@@ -142,9 +140,8 @@ ia64_elf32_init (struct pt_regs *regs)
          * Install LDT as anonymous memory.  This gives us all-zero segment descriptors
          * until a task modifies them via modify_ldt().
          */
-        vma = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
+        vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
         if (vma) {
-                memset(vma, 0, sizeof(*vma));
                 vma->vm_mm = current->mm;
                 vma->vm_start = IA32_LDT_OFFSET;
                 vma->vm_end = vma->vm_start + PAGE_ALIGN(IA32_LDT_ENTRIES*IA32_LDT_ENTRY_SIZE);
@@ -214,12 +211,10 @@ ia32_setup_arg_pages (struct linux_binprm *bprm, int executable_stack)
                 bprm->loader += stack_base;
         bprm->exec += stack_base;
 
-        mpnt = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
+        mpnt = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
         if (!mpnt)
                 return -ENOMEM;
 
-        memset(mpnt, 0, sizeof(*mpnt));
-
         down_write(&current->mm->mmap_sem);
         {
                 mpnt->vm_mm = current->mm;