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| author | Christoph Hellwig <hch@lst.de> | 2023-05-31 09:54:02 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2023-06-19 13:59:36 +0200 |
| commit | ec63b84d4611b2f07e9242080f3e8de4a011820b (patch) | |
| tree | ba976b7b5152286a0cd47381692580a3e214e931 /fs/btrfs/extent_io.c | |
| parent | 112397acc358883a90bb32b9597724dfbc3ccb41 (diff) | |
| download | lwn-ec63b84d4611b2f07e9242080f3e8de4a011820b.tar.gz lwn-ec63b84d4611b2f07e9242080f3e8de4a011820b.zip | |
btrfs: add an ordered_extent pointer to struct btrfs_bio
Add a pointer to the ordered_extent to the existing union in struct
btrfs_bio, so all code dealing with data write bios can just use a
pointer dereference to retrieve the ordered_extent instead of doing
multiple rbtree lookups per I/O.
The reference to this ordered_extent is dropped at end I/O time,
which implies that an extra one must be acquired when the bio is split.
This also requires moving the btrfs_extract_ordered_extent call into
btrfs_split_bio so that the invariant of always having a valid
ordered_extent reference for the btrfs_bio is kept.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/extent_io.c')
| -rw-r--r-- | fs/btrfs/extent_io.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 35141a223a3e..ad536eaf02b0 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -835,7 +835,7 @@ static void alloc_new_bio(struct btrfs_inode *inode, bio_ctrl->len_to_oe_boundary = min_t(u32, U32_MAX, ordered->file_offset + ordered->disk_num_bytes - file_offset); - btrfs_put_ordered_extent(ordered); + bbio->ordered = ordered; } /* |