tree 61612cbcf814402d4e82f5f452d59e4d7547bd68
parent 79add3a3f795e688e35d5e703d5a8cfa8ef923ac
author Lukas Czerner <lczerner@redhat.com> 1352401492 -0500
committer Theodore Ts'o <tytso@mit.edu> 1352401492 -0500

ext4: warn when discard request fails other than EOPNOTSUPP

We should warn user then the discard request fails. However we need to
exclude -EOPNOTSUPP case since parts of the device might not support it
while other parts can. So print the kernel warning when the error !=
-EOPNOTSUPP is returned from ext4_issue_discard().

We should also handle error cases in batched discard, again excluding
EOPNOTSUPP.

Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>