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(parent: ce879f9) | patch
ext4: move check under lock scope to close a race.
authorDavide Italiano <dccitaliano@gmail.com>
Sun, 3 May 2015 03:21:15 +0000 (23:21 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 13 May 2015 12:14:29 +0000 (05:14 -0700)
commit1754083fb992e955ef22fc07de639a41a5ca3c7a
tree290ec8867c65d259ce07776041bee1da15a10774tree | snapshot
parentce879f96b58445d098969a1b329deae67b61d514commit | diff
ext4: move check under lock scope to close a race.

commit 280227a75b56ab5d35854f3a77ef74a7ad56a203 upstream.

fallocate() checks that the file is extent-based and returns
EOPNOTSUPP in case is not. Other tasks can convert from and to
indirect and extent so it's safe to check only after grabbing
the inode mutex.

Signed-off-by: Davide Italiano <dccitaliano@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fs/ext4/extents.c diff | blob | history
Linux kernels and configurations used by Zygo.