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| author | Oleg Nesterov <oleg@redhat.com> | 2011-07-27 03:08:43 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-27 03:49:44 +0400 |
| commit | 32e107f71e4a993ac438f0049aa4019457911ffb (patch) | |
| tree | 3c022205c424db5d614448f5de1fbd8d9a485e89 | |
| parent | b4edf8bd06916645b57df23a720b17cae4051c43 (diff) | |
| download | linux-32e107f71e4a993ac438f0049aa4019457911ffb.tar.xz | |
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.c | 7 |
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, |