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authorAl Viro <viro@zeniv.linux.org.uk>2013-09-15 01:32:12 +0400
committerAl Viro <viro@zeniv.linux.org.uk>2013-09-17 03:16:38 +0400
commit606035e76e79b14bf7a7c219140c045a952cc76e (patch)
tree43958ffa5278f8ba9d1d6a8884087b196952e94a /Documentation/filesystems
parent3711d86a2de17e967b576af8b8a1e9351a7d1466 (diff)
downloadlinux-606035e76e79b14bf7a7c219140c045a952cc76e.tar.xz
autofs4: close the races around autofs4_notify_daemon()
Don't drop ->wq_mutex before calling autofs4_notify_daemon() only to regain it there. Besides being pointless, that opens a race window where autofs4_wait_release() could've come and freed wq->name.name. And do the debugging printk in the "reused an existing wq" case before dropping ->wq_mutex - the same reason... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Ian Kent <raven@themaw.net>
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