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(parent: cb7829b) | patch
drop ->s_umount around acct_auto_close()
authorAl Viro <viro@zeniv.linux.org.uk>
Thu, 7 Aug 2014 11:32:06 +0000 (07:32 -0400)
committerAl Viro <viro@zeniv.linux.org.uk>
Thu, 7 Aug 2014 18:40:08 +0000 (14:40 -0400)
commitd1bcebefcbb5ecb02ce37f10211b8e3ee6dab099
tree220068a33da8eadd95e3006f626f3d80b8822f6btree | snapshot
parentcb7829bff15df9131c619e653d92c37e55604b8dcommit | diff
drop ->s_umount around acct_auto_close()

just repeat the frozen check after regaining it, and check that sb
is still alive.  If several threads hit acct_auto_close() at the
same time, acct_auto_close() will survive that just fine.  And we
really don't want to play with writes and closing the file with
->s_umount held exclusive - it's a deadlock country.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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