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author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-05-01 11:34:03 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-05-01 11:34:03 -0700 |
commit | 7af81cd0c4306482b49a3adce0fb2f8655f57d0f (patch) | |
tree | f86cf1a4b398798c2bc5efe1374ef77f947d237e /include/uapi | |
parent | 152d32aa846835987966fd20ee1143b0e05036a0 (diff) | |
parent | ca4a4e9a55beeb138bb06e3867f5e486da896d44 (diff) | |
download | linux-7af81cd0c4306482b49a3adce0fb2f8655f57d0f.tar.bz2 |
Merge tag 'for-5.13/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper updates from Mike Snitzer:
- Improve scalability of DM's device hash by switching to rbtree
- Extend DM ioctl's DM_LIST_DEVICES_CMD handling to include UUID and
allow filtering based on name or UUID prefix.
- Various small fixes for typos, warnings, unused function, or
needlessly exported interfaces.
- Remove needless request_queue NULL pointer checks in DM thin and
cache targets.
- Remove unnecessary loop in DM core's __split_and_process_bio().
- Remove DM core's dm_vcalloc() and just use kvcalloc or kvmalloc_array
instead (depending whether zeroing is useful).
- Fix request-based DM's double free of blk_mq_tag_set in device remove
after table load fails.
- Improve DM persistent data performance on non-x86 by fixing packed
structs to have a stated alignment. Also remove needless extra work
from redundant calls to sm_disk_get_nr_free() and a paranoid BUG_ON()
that caused duplicate checksum calculation.
- Fix missing goto in DM integrity's bitmap_flush_interval error
handling.
- Add "reset_recalculate" feature flag to DM integrity.
- Improve DM integrity by leveraging discard support to avoid needless
re-writing of metadata and also use discard support to improve hash
recalculation.
- Fix race with DM raid target's reshape and MD raid4/5/6 resync that
resulted in inconsistant reshape state during table reloads.
- Update DM raid target to temove unnecessary discard limits for raid0
and raid10 now that MD has optimized discard handling for both raid
levels.
* tag 'for-5.13/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (26 commits)
dm raid: remove unnecessary discard limits for raid0 and raid10
dm rq: fix double free of blk_mq_tag_set in dev remove after table load fails
dm integrity: use discard support when recalculating
dm integrity: increase RECALC_SECTORS to improve recalculate speed
dm integrity: don't re-write metadata if discarding same blocks
dm raid: fix inconclusive reshape layout on fast raid4/5/6 table reload sequences
dm raid: fix fall-through warning in rs_check_takeover() for Clang
dm clone metadata: remove unused function
dm integrity: fix missing goto in bitmap_flush_interval error handling
dm: replace dm_vcalloc()
dm space map common: fix division bug in sm_ll_find_free_block()
dm persistent data: packed struct should have an aligned() attribute too
dm btree spine: remove paranoid node_check call in node_prep_for_write()
dm space map disk: remove redundant calls to sm_disk_get_nr_free()
dm integrity: add the "reset_recalculate" feature flag
dm persistent data: remove unused return from exit_shadow_spine()
dm cache: remove needless request_queue NULL pointer checks
dm thin: remove needless request_queue NULL pointer check
dm: unexport dm_{get,put}_table_device
dm ebs: fix a few typos
...
Diffstat (limited to 'include/uapi')
-rw-r--r-- | include/uapi/linux/dm-ioctl.h | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/include/uapi/linux/dm-ioctl.h b/include/uapi/linux/dm-ioctl.h index fcff6669137b..e5c6e458bdf7 100644 --- a/include/uapi/linux/dm-ioctl.h +++ b/include/uapi/linux/dm-ioctl.h @@ -193,8 +193,22 @@ struct dm_name_list { __u32 next; /* offset to the next record from the _start_ of this */ char name[0]; + + /* + * The following members can be accessed by taking a pointer that + * points immediately after the terminating zero character in "name" + * and aligning this pointer to next 8-byte boundary. + * Uuid is present if the flag DM_NAME_LIST_FLAG_HAS_UUID is set. + * + * __u32 event_nr; + * __u32 flags; + * char uuid[0]; + */ }; +#define DM_NAME_LIST_FLAG_HAS_UUID 1 +#define DM_NAME_LIST_FLAG_DOESNT_HAVE_UUID 2 + /* * Used to retrieve the target versions */ @@ -272,9 +286,9 @@ enum { #define DM_DEV_SET_GEOMETRY _IOWR(DM_IOCTL, DM_DEV_SET_GEOMETRY_CMD, struct dm_ioctl) #define DM_VERSION_MAJOR 4 -#define DM_VERSION_MINOR 44 +#define DM_VERSION_MINOR 45 #define DM_VERSION_PATCHLEVEL 0 -#define DM_VERSION_EXTRA "-ioctl (2021-02-01)" +#define DM_VERSION_EXTRA "-ioctl (2021-03-22)" /* Status bits */ #define DM_READONLY_FLAG (1 << 0) /* In/Out */ |