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| author | Dmitry Fomichev <dmitry.fomichev@wdc.com> | 2019-08-10 14:43:10 -0700 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2019-08-15 15:57:41 -0400 |
| commit | d7428c50118e739e672656c28d2b26b09375d4e0 (patch) | |
| tree | b27d9ab9a591e46541a8982e18614299113bd5b7 /drivers/md/dm-zoned.h | |
| parent | b234c6d7a703661b5045c5bf569b7c99d2edbf88 (diff) | |
| download | lwn-d7428c50118e739e672656c28d2b26b09375d4e0.tar.gz lwn-d7428c50118e739e672656c28d2b26b09375d4e0.zip | |
dm zoned: improve error handling in i/o map code
Some errors are ignored in the I/O path during queueing chunks
for processing by chunk works. Since at least these errors are
transient in nature, it should be possible to retry the failed
incoming commands.
The fix -
Errors that can happen while queueing chunks are carried upwards
to the main mapping function and it now returns DM_MAPIO_REQUEUE
for any incoming requests that can not be properly queued.
Error logging/debug messages are added where needed.
Fixes: 3b1a94c88b79 ("dm zoned: drive-managed zoned block device target")
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Fomichev <dmitry.fomichev@wdc.com>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-zoned.h')
0 files changed, 0 insertions, 0 deletions