tree 376af76e1cc5edefe88deb6fc6ac7f0d0f83a794
parent d2dc317d564a46dfc683978a2e5a4f91434e9711
author Davide Italiano <dccitaliano@gmail.com> 1430623275 -0400
committer Theodore Ts'o <tytso@mit.edu> 1430623275 -0400

ext4: move check under lock scope to close a race.

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>
Cc: stable@vger.kernel.org