linux-kernel - [PATCH v2 42/43] dlm: Remove another superfluous call to recalc

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Date:	Fri, 19 Aug 2011 17:46:58 +0100
From:	Matt Fleming <matt@...sole-pimps.org>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	linux-kernel@...r.kernel.org,
	Christine Caulfield <ccaulfie@...hat.com>
Subject: [PATCH v2 42/43] dlm: Remove another superfluous call to recalc_sigpending()

From: Matt Fleming <matt.fleming@...el.com>

recalc_sigpending() is called within sigprocmask(), so there is no
need call it again after sigprocmask() has returned. Furthermore, the
call to recalc_sigpending() could race with signal_wake_up() because
it isn't called with sighand->siglock held. I must have missed this
call when removing the other recalc_sigpending() in commit
4bcad6c1ef53 ("dlm: Remove superfluous call to recalc_sigpending())".

Cc: Christine Caulfield <ccaulfie@...hat.com>
Acked-by: David Teigland <teigland@...hat.com>
Acked-by: Oleg Nesterov <oleg@...hat.com>
Signed-off-by: Matt Fleming <matt.fleming@...el.com>
---
 fs/dlm/user.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/fs/dlm/user.c b/fs/dlm/user.c
index d8ea607..b38b122 100644
--- a/fs/dlm/user.c
+++ b/fs/dlm/user.c
@@ -678,7 +678,6 @@ static int device_close(struct inode *inode, struct file *file)
 	   device_remove_lockspace() */
 
 	sigprocmask(SIG_SETMASK, &tmpsig, NULL);
-	recalc_sigpending();
 
 	return 0;
 }
-- 
1.7.4.4

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