kernel/drivers/md/dm-snap.c, branch linux-6.9.y

dm snapshot: fix lockup in dm_exception_table_exit

2024-03-20T18:31:24Z

There was reported lockup when we exit a snapshot with many exceptions. Fix this by adding "cond_resched" to the loop that frees the exceptions. Reported-by: John Pittman Cc: stable@vger.kernel.org Signed-off-by: Mikulas Patocka Signed-off-by: Mike Snitzer

block: replace fmode_t with a block-specific type for block open flags

2023-06-12T14:04:05Z

The only overlap between the block open flags mapped into the fmode_t and other uses of fmode_t are FMODE_READ and FMODE_WRITE. Define a new blk_mode_t instead for use in blkdev_get_by_{dev,path}, ->open and ->ioctl and stop abusing fmode_t. Signed-off-by: Christoph Hellwig Acked-by: Jack Wang [rnbd] Reviewed-by: Hannes Reinecke Reviewed-by: Christian Brauner Link: https://lore.kernel.org/r/20230608110258.189493-28-hch@lst.de Signed-off-by: Jens Axboe

dm-snap: simplify the origin_dev == cow_dev check in snapshot_ctr

2023-06-05T16:57:40Z

Use the block_device acquired in dm_get_device for the check instead of doing an extra lookup. Signed-off-by: Christoph Hellwig Reviewed-by: Mike Snitzer Link: https://lore.kernel.org/r/20230531125535.676098-18-hch@lst.de Signed-off-by: Jens Axboe

dm: push error reporting down to dm_register_target()

2023-04-11T16:01:01Z

Simplifies each DM target's init method by making dm_register_target() responsible for its error reporting (on behalf of targets). Signed-off-by: Yangtao Li Signed-off-by: Mike Snitzer

dm: avoid split of quoted strings where possible

2023-02-14T19:23:07Z