| Message ID | cover.1665490018.git.fdmanana@suse.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | btrfs: fixes, cleanups and optimizations around fiemap | expand |
On Tue, Oct 11, 2022 at 01:16:50PM +0100, fdmanana@kernel.org wrote: > From: Filipe Manana <fdmanana@suse.com> > > The first 3 patches are bug fixes, the first two fixing bugs in backref > walking that have been around since 2013 and 2017, respectively, while the > third one fixes a bug introduced in this merge window. > > The remaining are performance optimizations in the fiemap code path, as > well as some cleanups and refactorings to support them. Results and tests > are found in the changelogs of individual patches (06/19, 16/19, 18/19 > and 19/19). > > V2: Add one more patch to fix a long standing bug (since 2013) regarding > delayed data references during backref walking. Made it first patch > in the series since later patches touched the surrounding code and > it should backported to stable releases. Thanks, meanwhile v1 was in misc-next and got lightly tested so now replaced by v2 and first three patches queued for 6.1.
From: Filipe Manana <fdmanana@suse.com> The first 3 patches are bug fixes, the first two fixing bugs in backref walking that have been around since 2013 and 2017, respectively, while the third one fixes a bug introduced in this merge window. The remaining are performance optimizations in the fiemap code path, as well as some cleanups and refactorings to support them. Results and tests are found in the changelogs of individual patches (06/19, 16/19, 18/19 and 19/19). V2: Add one more patch to fix a long standing bug (since 2013) regarding delayed data references during backref walking. Made it first patch in the series since later patches touched the surrounding code and it should backported to stable releases. Filipe Manana (19): btrfs: fix processing of delayed data refs during backref walking btrfs: fix processing of delayed tree block refs during backref walking btrfs: ignore fiemap path cache if we have multiple leaves for a data extent btrfs: get the next extent map during fiemap/lseek more efficiently btrfs: skip unnecessary extent map searches during fiemap and lseek btrfs: skip unnecessary delalloc search during fiemap and lseek btrfs: drop pointless memset when cloning extent buffer btrfs: drop redundant bflags initialization when allocating extent buffer btrfs: remove checks for a root with id 0 during backref walking btrfs: remove checks for a 0 inode number during backref walking btrfs: directly pass the inode to btrfs_is_data_extent_shared() btrfs: turn the backref sharedness check cache into a context object btrfs: move ulists to data extent sharedness check context btrfs: remove roots ulist when checking data extent sharedness btrfs: remove useless logic when finding parent nodes btrfs: cache sharedness of the last few data extents during fiemap btrfs: move up backref sharedness cache store and lookup functions btrfs: avoid duplicated resolution of indirect backrefs during fiemap btrfs: avoid unnecessary resolution of indirect backrefs during fiemap fs/btrfs/backref.c | 489 ++++++++++++++++++++++++++++-------------- fs/btrfs/backref.h | 55 ++++- fs/btrfs/extent_io.c | 68 +++--- fs/btrfs/extent_map.c | 31 ++- fs/btrfs/extent_map.h | 2 + fs/btrfs/file.c | 69 ++++-- 6 files changed, 483 insertions(+), 231 deletions(-)