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authorJan Kara <jack@suse.cz>2015-05-21 16:05:56 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2015-06-23 18:01:10 -0400
commita6de82cab123beaf9406024943caa0242f0618b0 (patch)
tree747d73350fb02ca51306530630766dd28b8d0548 /Documentation
parent45f147a1bc97c743c6101a8d2741c69a51f583e4 (diff)
xfs: Correctly lock inode when removing suid and file capabilities
Currently XFS calls file_remove_privs() without holding i_mutex. This is wrong because that function can end up messing with file permissions and file capabilities stored in xattrs for which we need i_mutex held. Fix the problem by grabbing iolock exclusively when we will need to change anything in permissions / xattrs. Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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