linux/fs/ext4/extents.c
Davide Italiano 69ddc559d3 ext4: move check under lock scope to close a race.
commit 280227a75b 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: Luis Henriques <luis.henriques@canonical.com>
2015-05-12 09:36:39 +01:00

5525 lines
150 KiB