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author | Kent Overstreet <kent.overstreet@linux.dev> | 2023-09-10 17:29:39 -0400 |
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committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-07-14 19:00:16 -0400 |
commit | 7554a8bb6ddeeca87fa8abd1d9766111477a6643 (patch) | |
tree | 289b73e37804d7d5ba45b338d774ae18f6d7558d /fs/bcachefs/fs-io-pagecache.h | |
parent | 95924420b038a0d025c4d16c75be2a858e7c09df (diff) | |
download | lwn-7554a8bb6ddeeca87fa8abd1d9766111477a6643.tar.gz lwn-7554a8bb6ddeeca87fa8abd1d9766111477a6643.zip |
bcachefs: Ensure buffered writes write as much as they can
This adds a new helper, bch2_folio_reservation_get_partial(), which
reserves as many blocks as possible and may return partial success.
__bch2_buffered_write() is switched to the new helper - this fixes
fstests generic/275, the write until -ENOSPC test.
generic/230 now fails: this appears to be a test bug, where xfs_io isn't
looping after a partial write to get the error code.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/fs-io-pagecache.h')
-rw-r--r-- | fs/bcachefs/fs-io-pagecache.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/bcachefs/fs-io-pagecache.h b/fs/bcachefs/fs-io-pagecache.h index 828c3d7c8f19..fd7d692c087e 100644 --- a/fs/bcachefs/fs-io-pagecache.h +++ b/fs/bcachefs/fs-io-pagecache.h @@ -153,7 +153,12 @@ int bch2_folio_reservation_get(struct bch_fs *, struct bch_inode_info *, struct folio *, struct bch2_folio_reservation *, - unsigned, unsigned); + size_t, size_t); +ssize_t bch2_folio_reservation_get_partial(struct bch_fs *, + struct bch_inode_info *, + struct folio *, + struct bch2_folio_reservation *, + size_t, size_t); void bch2_set_folio_dirty(struct bch_fs *, struct bch_inode_info *, |