diff options
| author | Johannes Thumshirn <johannes.thumshirn@wdc.com> | 2023-09-14 09:06:58 -0700 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2023-10-12 16:44:09 +0200 |
| commit | 02c372e1f016e5113217597ab37b399c4e407477 (patch) | |
| tree | 2d0ae758389fa49c49b19a004ef8cf65fcba2415 /fs/btrfs/volumes.c | |
| parent | 515020900d447796bc2f0f57064663617a11b65d (diff) | |
| download | lwn-02c372e1f016e5113217597ab37b399c4e407477.tar.gz lwn-02c372e1f016e5113217597ab37b399c4e407477.zip | |
btrfs: add support for inserting raid stripe extents
Add support for inserting stripe extents into the raid stripe tree on
completion of every write that needs an extra logical-to-physical
translation when using RAID.
Inserting the stripe extents happens after the data I/O has completed,
this is done to
a) support zone-append and
b) rule out the possibility of a RAID-write-hole.
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/volumes.c')
| -rw-r--r-- | fs/btrfs/volumes.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 22977246d817..4f01dec76f1d 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -5906,6 +5906,7 @@ static int find_live_mirror(struct btrfs_fs_info *fs_info, } static struct btrfs_io_context *alloc_btrfs_io_context(struct btrfs_fs_info *fs_info, + u64 logical, u16 total_stripes) { struct btrfs_io_context *bioc; @@ -5925,6 +5926,7 @@ static struct btrfs_io_context *alloc_btrfs_io_context(struct btrfs_fs_info *fs_ bioc->fs_info = fs_info; bioc->replace_stripe_src = -1; bioc->full_stripe_logical = (u64)-1; + bioc->logical = logical; return bioc; } @@ -6451,7 +6453,7 @@ int btrfs_map_block(struct btrfs_fs_info *fs_info, enum btrfs_map_op op, goto out; } - bioc = alloc_btrfs_io_context(fs_info, num_alloc_stripes); + bioc = alloc_btrfs_io_context(fs_info, logical, num_alloc_stripes); if (!bioc) { ret = -ENOMEM; goto out; |