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authorOleg Nesterov <oleg@redhat.com>2011-07-26 16:08:43 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-07-26 16:49:44 -0700
commit32e107f71e4a993ac438f0049aa4019457911ffb (patch)
tree3c022205c424db5d614448f5de1fbd8d9a485e89
parentb4edf8bd06916645b57df23a720b17cae4051c43 (diff)
fs/exec.c:acct_arg_size(): ptl is no longer needed for add_mm_counter()
acct_arg_size() takes ->page_table_lock around add_mm_counter() if !SPLIT_RSS_COUNTING. This is not needed after commit 172703b08cd0 ("mm: delete non-atomic mm counter implementation"). Signed-off-by: Oleg Nesterov <oleg@redhat.com> Reviewed-by: Matt Fleming <matt.fleming@linux.intel.com> Cc: Dave Hansen <dave@linux.vnet.ibm.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--fs/exec.c7
1 files changed, 0 insertions, 7 deletions
diff --git a/fs/exec.c b/fs/exec.c
index 0e8e59939d09..da80612a35f4 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -181,14 +181,7 @@ static void acct_arg_size(struct linux_binprm *bprm, unsigned long pages)
return;
bprm->vma_pages = pages;
-
-#ifdef SPLIT_RSS_COUNTING
- add_mm_counter(mm, MM_ANONPAGES, diff);
-#else
- spin_lock(&mm->page_table_lock);
add_mm_counter(mm, MM_ANONPAGES, diff);
- spin_unlock(&mm->page_table_lock);
-#endif
}
static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,

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