From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail137.messagelabs.com (mail137.messagelabs.com [216.82.249.19]) by kanga.kvack.org (Postfix) with ESMTP id 6C0938D0041 for ; Sat, 5 Mar 2011 11:42:40 -0500 (EST) Received: from unknown (HELO localhost.localdomain) (zcncxNmDysja2tXBptWToZWJlF6Wp6IuYnI=@[200.157.204.20]) (envelope-sender ) by smtp-03.mandic.com.br (qmail-ldap-1.03) with AES256-SHA encrypted SMTP for ; 5 Mar 2011 16:42:37 -0000 From: Cesar Eduardo Barros Subject: [PATCHv2 11/24] sys_swapon: do only cleanup in the cleanup blocks Date: Sat, 5 Mar 2011 13:42:12 -0300 Message-Id: <1299343345-3984-12-git-send-email-cesarb@cesarb.net> In-Reply-To: <1299343345-3984-1-git-send-email-cesarb@cesarb.net> References: <1299343345-3984-1-git-send-email-cesarb@cesarb.net> Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org Cc: Andrew Morton , Hugh Dickins , KAMEZAWA Hiroyuki , Minchan Kim , Jens Axboe , linux-kernel@vger.kernel.org, Eric B Munson , Cesar Eduardo Barros The only way error is 0 in the cleanup blocks is when the function is returning successfully. In this case, the cleanup blocks were setting S_SWAPFILE in the S_ISREG case. But this is not a cleanup. Move the setting of S_SWAPFILE to just before the "goto out;" to make this more clear. At this point, we do not need to test for inode because it will never be NULL. Signed-off-by: Cesar Eduardo Barros Tested-by: Eric B Munson Acked-by: Eric B Munson --- mm/swapfile.c | 7 +++---- 1 files changed, 3 insertions(+), 4 deletions(-) diff --git a/mm/swapfile.c b/mm/swapfile.c index bc00c1a..ebc0307 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -2136,6 +2136,8 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags) atomic_inc(&proc_poll_event); wake_up_interruptible(&proc_poll_wait); + if (S_ISREG(inode->i_mode)) + inode->i_flags |= S_SWAPFILE; error = 0; goto out; bad_swap: @@ -2160,11 +2162,8 @@ out: } if (name) putname(name); - if (inode && S_ISREG(inode->i_mode)) { - if (!error) - inode->i_flags |= S_SWAPFILE; + if (inode && S_ISREG(inode->i_mode)) mutex_unlock(&inode->i_mutex); - } return error; } -- 1.7.4 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org