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authorJeff Layton <jlayton@redhat.com>2014-03-10 17:54:15 +0400
committerJeff Layton <jlayton@redhat.com>2014-03-31 16:24:43 +0400
commitd7a06983a01a33605191c0766857b832ac32a2b6 (patch)
treed6a0f83579e0d7a20a235ddb568d935fe54b24fb /MAINTAINERS
parent90478939dce096ed5b239cad16237dca0a59d66f (diff)
downloadlinux-d7a06983a01a33605191c0766857b832ac32a2b6.tar.xz
locks: fix locks_mandatory_locked to respect file-private locks
As Trond pointed out, you can currently deadlock yourself by setting a file-private lock on a file that requires mandatory locking and then trying to do I/O on it. Avoid this problem by plumbing some knowledge of file-private locks into the mandatory locking code. In order to do this, we must pass down information about the struct file that's being used to locks_verify_locked. Reported-by: Trond Myklebust <trond.myklebust@primarydata.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: J. Bruce Fields <bfields@redhat.com>
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