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Message-ID: <20110713193935.GA18026@redhat.com> Date: Wed, 13 Jul 2011 21:39:35 +0200 From: Oleg Nesterov <oleg@...hat.com> To: Andrew Morton <akpm@...ux-foundation.org> Cc: Matt Fleming <matt.fleming@...ux.intel.com>, Dave Hansen <dave@...ux.vnet.ibm.com>, KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>, linux-kernel@...r.kernel.org Subject: [PATCH] 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 no needed after 172703b0 "mm: delete non-atomic mm counter implementation". Signed-off-by: Oleg Nesterov <oleg@...hat.com> --- fs/exec.c | 7 ------- 1 file changed, 7 deletions(-) --- ptrace/fs/exec.c~acct_arg_size-no-ptl 2011-07-10 16:20:01.000000000 +0200 +++ ptrace/fs/exec.c 2011-07-13 21:36:29.000000000 +0200 @@ -181,14 +181,7 @@ static void acct_arg_size(struct linux_b 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, -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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