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authorChristoph Hellwig <hch@lst.de>2017-06-03 10:38:02 +0300
committerJens Axboe <axboe@fb.com>2017-06-09 18:27:32 +0300
commit846785e6a5725de4f0788e78e101961566a77d2a (patch)
tree4dd5c24f6ebb9e4adb4ab920a6bdd99531e1300c /drivers/md/dm-flakey.c
parent14ef1e48269dde9b78efe4b112fa78e9ced72bc1 (diff)
downloadlinux-846785e6a5725de4f0788e78e101961566a77d2a.tar.xz
dm: don't return errnos from ->map
Instead use the special DM_MAPIO_KILL return value to return -EIO just like we do for the request based path. Note that dm-log-writes returned -ENOMEM in a few places, which now becomes -EIO instead. No consumer treats -ENOMEM special so this shouldn't be an issue (and it should use a mempool to start with to make guaranteed progress). Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/md/dm-flakey.c')
-rw-r--r--drivers/md/dm-flakey.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/md/dm-flakey.c b/drivers/md/dm-flakey.c
index 13305a182611..e8f093b323ce 100644
--- a/drivers/md/dm-flakey.c
+++ b/drivers/md/dm-flakey.c
@@ -321,7 +321,7 @@ static int flakey_map(struct dm_target *ti, struct bio *bio)
if (bio_data_dir(bio) == READ) {
if (!fc->corrupt_bio_byte && !test_bit(DROP_WRITES, &fc->flags) &&
!test_bit(ERROR_WRITES, &fc->flags))
- return -EIO;
+ return DM_MAPIO_KILL;
goto map_bio;
}
@@ -349,7 +349,7 @@ static int flakey_map(struct dm_target *ti, struct bio *bio)
/*
* By default, error all I/O.
*/
- return -EIO;
+ return DM_MAPIO_KILL;
}
map_bio: