diff options
| author | Josef Bacik <josef@toxicpanda.com> | 2022-09-12 12:27:44 -0700 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2022-09-29 17:08:28 +0200 |
| commit | 1daedb1d6bf24c7185e00cd341404f262f8de7c8 (patch) | |
| tree | 5b3411ade991ec8ea12cb778b028992e426ebad3 /fs/btrfs/delalloc-space.c | |
| parent | 26ce91144631a402ff82c93358d8880326a7caa3 (diff) | |
btrfs: add the ability to use NO_FLUSH for data reservations
In order to accommodate NOWAIT IOCB's we need to be able to do NO_FLUSH
data reservations, so plumb this through the delalloc reservation
system.
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Stefan Roesch <shr@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/delalloc-space.c')
| -rw-r--r-- | fs/btrfs/delalloc-space.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/fs/btrfs/delalloc-space.c b/fs/btrfs/delalloc-space.c index 1e8f17ff829e..118b2e20b2e1 100644 --- a/fs/btrfs/delalloc-space.c +++ b/fs/btrfs/delalloc-space.c @@ -127,9 +127,11 @@ int btrfs_alloc_data_chunk_ondemand(struct btrfs_inode *inode, u64 bytes) } int btrfs_check_data_free_space(struct btrfs_inode *inode, - struct extent_changeset **reserved, u64 start, u64 len) + struct extent_changeset **reserved, u64 start, + u64 len, bool noflush) { struct btrfs_fs_info *fs_info = inode->root->fs_info; + enum btrfs_reserve_flush_enum flush = BTRFS_RESERVE_FLUSH_DATA; int ret; /* align the range */ @@ -137,7 +139,12 @@ int btrfs_check_data_free_space(struct btrfs_inode *inode, round_down(start, fs_info->sectorsize); start = round_down(start, fs_info->sectorsize); - ret = btrfs_alloc_data_chunk_ondemand(inode, len); + if (noflush) + flush = BTRFS_RESERVE_NO_FLUSH; + else if (btrfs_is_free_space_inode(inode)) + flush = BTRFS_RESERVE_FLUSH_FREE_SPACE_INODE; + + ret = btrfs_reserve_data_bytes(fs_info, len, flush); if (ret < 0) return ret; @@ -454,7 +461,7 @@ int btrfs_delalloc_reserve_space(struct btrfs_inode *inode, { int ret; - ret = btrfs_check_data_free_space(inode, reserved, start, len); + ret = btrfs_check_data_free_space(inode, reserved, start, len, false); if (ret < 0) return ret; ret = btrfs_delalloc_reserve_metadata(inode, len, len, false); |