diff options
| author | Omar Sandoval <osandov@fb.com> | 2019-08-14 01:00:02 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2022-03-14 13:13:51 +0100 |
| commit | 7c0c7269f7b508ba6e4b063a9314d6bd1fb6db22 (patch) | |
| tree | 97c42d1bcd553b2ef14e5b2494b4f303585e09b1 /fs/btrfs/ordered-data.c | |
| parent | btrfs: add BTRFS_IOC_ENCODED_READ ioctl (diff) | |
| download | linux-7c0c7269f7b508ba6e4b063a9314d6bd1fb6db22.tar.xz linux-7c0c7269f7b508ba6e4b063a9314d6bd1fb6db22.zip | |
btrfs: add BTRFS_IOC_ENCODED_WRITE
The implementation resembles direct I/O: we have to flush any ordered
extents, invalidate the page cache, and do the io tree/delalloc/extent
map/ordered extent dance. From there, we can reuse the compression code
with a minor modification to distinguish the write from writeback. This
also creates inline extents when possible.
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/ordered-data.c')
| -rw-r--r-- | fs/btrfs/ordered-data.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c index 2ce7a4b4f7d0..1957b14b329a 100644 --- a/fs/btrfs/ordered-data.c +++ b/fs/btrfs/ordered-data.c @@ -522,9 +522,15 @@ void btrfs_remove_ordered_extent(struct btrfs_inode *btrfs_inode, spin_lock(&btrfs_inode->lock); btrfs_mod_outstanding_extents(btrfs_inode, -1); spin_unlock(&btrfs_inode->lock); - if (root != fs_info->tree_root) - btrfs_delalloc_release_metadata(btrfs_inode, entry->num_bytes, - false); + if (root != fs_info->tree_root) { + u64 release; + + if (test_bit(BTRFS_ORDERED_ENCODED, &entry->flags)) + release = entry->disk_num_bytes; + else + release = entry->num_bytes; + btrfs_delalloc_release_metadata(btrfs_inode, release, false); + } percpu_counter_add_batch(&fs_info->ordered_bytes, -entry->num_bytes, fs_info->delalloc_batch); |