diff options
| author |   Nikolay Borisov <nborisov@suse.com> | 2019-03-12 17:20:30 +0200 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2019-05-02 13:48:19 +0200 |
| commit | 7447555fe7765d7823f5db7760bfdeba035b7bad (patch) | |
| tree | a390453fc43d1788dacce25bbdf885192832d580 /fs | |
| parent | btrfs: Set io_tree only once in submit_compressed_extents (diff) | |
| download | linux-dev-7447555fe7765d7823f5db7760bfdeba035b7bad.tar.xz linux-dev-7447555fe7765d7823f5db7760bfdeba035b7bad.zip | |
btrfs: Factor out common extent locking code in submit_compressed_extents
Irrespective of whether the compress code fell back to uncompressed or
a compressed extent has to be submitted, the extent range is always
locked. So factor out the common lock_extent call at the beginning of
the loop. No functional changes just removes one duplicate lock_extent
call.
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/inode.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 83bf10bb13bb..05ff09e8a200 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -725,16 +725,15 @@ again: async_extent = list_entry(async_chunk->extents.next, struct async_extent, list); list_del(&async_extent->list); + retry: + lock_extent(io_tree, async_extent->start, + async_extent->start + async_extent->ram_size - 1); /* did the compression code fall back to uncompressed IO? */ if (!async_extent->pages) { int page_started = 0; unsigned long nr_written = 0; - lock_extent(io_tree, async_extent->start, - async_extent->start + - async_extent->ram_size - 1); - /* allocate blocks */ ret = cow_file_range(inode, async_chunk->locked_page, async_extent->start, @@ -766,9 +765,6 @@ retry: continue; } - lock_extent(io_tree, async_extent->start, - async_extent->start + async_extent->ram_size - 1); - ret = btrfs_reserve_extent(root, async_extent->ram_size, async_extent->compressed_size, async_extent->compressed_size, |