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author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-10-30 10:42:06 -1000 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-10-30 10:42:06 -1000 |
commit | d5acbc60fafbe0fc94c552ce916dd592cd4c6371 (patch) | |
tree | c2d70058845399ebcf894e551e6b0c053dd3e836 /fs/btrfs/backref.h | |
parent | 8829687a4ac1d484639425a691da46f6e361aec1 (diff) | |
parent | c6e8f898f56fae2cb5bc4396bec480f23cd8b066 (diff) | |
download | linux-d5acbc60fafbe0fc94c552ce916dd592cd4c6371.tar.gz linux-d5acbc60fafbe0fc94c552ce916dd592cd4c6371.tar.bz2 linux-d5acbc60fafbe0fc94c552ce916dd592cd4c6371.zip |
Merge tag 'for-6.7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"New features:
- raid-stripe-tree
New tree for logical file extent mapping where the physical mapping
may not match on multiple devices. This is now used in zoned mode
to implement RAID0/RAID1* profiles, but can be used in non-zoned
mode as well. The support for RAID56 is in development and will
eventually fix the problems with the current implementation. This
is a backward incompatible feature and has to be enabled at mkfs
time.
- simple quota accounting (squota)
A simplified mode of qgroup that accounts all space on the initial
extent owners (a subvolume), the snapshots are then cheap to create
and delete. The deletion of snapshots in fully accounting qgroups
is a known CPU/IO performance bottleneck.
The squota is not suitable for the general use case but works well
for containers where the original subvolume exists for the whole
time. This is a backward incompatible feature as it needs extending
some structures, but can be enabled on an existing filesystem.
- temporary filesystem fsid (temp_fsid)
The fsid identifies a filesystem and is hard coded in the
structures, which disallows mounting the same fsid found on
different devices.
For a single device filesystem this is not strictly necessary, a
new temporary fsid can be generated on mount e.g. after a device is
cloned. This will be used by Steam Deck for root partition A/B
testing, or can be used for VM root images.
Other user visible changes:
- filesystems with partially finished metadata_uuid conversion cannot
be mounted anymore and the uuid fixup has to be done by btrfs-progs
(btrfstune).
Performance improvements:
- reduce reservations for checksum deletions (with enabled free space
tree by factor of 4), on a sample workload on file with many
extents the deletion time decreased by 12%
- make extent state merges more efficient during insertions, reduce
rb-tree iterations (run time of critical functions reduced by 5%)
Core changes:
- the integrity check functionality has been removed, this was a
debugging feature and removal does not affect other integrity
checks like checksums or tree-checker
- space reservation changes:
- more efficient delayed ref reservations, this avoids building up
too much work or overusing or exhausting the global block
reserve in some situations
- move delayed refs reservation to the transaction start time,
this prevents some ENOSPC corner cases related to exhaustion of
global reserve
- improvements in reducing excessive reservations for block group
items
- adjust overcommit logic in near full situations, account for one
more chunk to eventually allocate metadata chunk, this is mostly
relevant for small filesystems (<10GiB)
- single device filesystems are scanned but not registered (except
seed devices), this allows temp_fsid to work
- qgroup iterations do not need GFP_ATOMIC allocations anymore
- cleanups, refactoring, reduced data structure size, function
parameter simplifications, error handling fixes"
* tag 'for-6.7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (156 commits)
btrfs: open code timespec64 in struct btrfs_inode
btrfs: remove redundant log root tree index assignment during log sync
btrfs: remove redundant initialization of variable dirty in btrfs_update_time()
btrfs: sysfs: show temp_fsid feature
btrfs: disable the device add feature for temp-fsid
btrfs: disable the seed feature for temp-fsid
btrfs: update comment for temp-fsid, fsid, and metadata_uuid
btrfs: remove pointless empty log context list check when syncing log
btrfs: update comment for struct btrfs_inode::lock
btrfs: remove pointless barrier from btrfs_sync_file()
btrfs: add and use helpers for reading and writing last_trans_committed
btrfs: add and use helpers for reading and writing fs_info->generation
btrfs: add and use helpers for reading and writing log_transid
btrfs: add and use helpers for reading and writing last_log_commit
btrfs: support cloned-device mount capability
btrfs: add helper function find_fsid_by_disk
btrfs: stop reserving excessive space for block group item insertions
btrfs: stop reserving excessive space for block group item updates
btrfs: reorder btrfs_inode to fill gaps
btrfs: open code btrfs_ordered_inode_tree in btrfs_inode
...
Diffstat (limited to 'fs/btrfs/backref.h')
-rw-r--r-- | fs/btrfs/backref.h | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/fs/btrfs/backref.h b/fs/btrfs/backref.h index 71d535e03dca..ab4ca0eda605 100644 --- a/fs/btrfs/backref.h +++ b/fs/btrfs/backref.h @@ -247,7 +247,7 @@ struct prelim_ref { struct rb_node rbnode; u64 root_id; struct btrfs_key key_for_search; - int level; + u8 level; int count; struct extent_inode_elem *inode_list; u64 parent; @@ -440,11 +440,11 @@ struct btrfs_backref_cache { * Reloction backref cache require more info for reloc root compared * to generic backref cache. */ - unsigned int is_reloc; + bool is_reloc; }; void btrfs_backref_init_cache(struct btrfs_fs_info *fs_info, - struct btrfs_backref_cache *cache, int is_reloc); + struct btrfs_backref_cache *cache, bool is_reloc); struct btrfs_backref_node *btrfs_backref_alloc_node( struct btrfs_backref_cache *cache, u64 bytenr, int level); struct btrfs_backref_edge *btrfs_backref_alloc_edge( @@ -533,9 +533,9 @@ void btrfs_backref_cleanup_node(struct btrfs_backref_cache *cache, void btrfs_backref_release_cache(struct btrfs_backref_cache *cache); static inline void btrfs_backref_panic(struct btrfs_fs_info *fs_info, - u64 bytenr, int errno) + u64 bytenr, int error) { - btrfs_panic(fs_info, errno, + btrfs_panic(fs_info, error, "Inconsistency in backref cache found at offset %llu", bytenr); } |