diff options
| author | Nikolay Borisov | 2020-01-20 16:09:10 +0200 |
|---|---|---|
| committer | David Sterba | 2020-03-23 17:01:36 +0100 |
| commit | 6787bb9f35157f718b53e6b63461e446a148e751 (patch) | |
| tree | b4792bba19f8796f75d6b1cfba1391865ff81c5c /fs/btrfs | |
| parent | b25c36f84b59a64fd5815f341b6ddbd8a8a2bb56 (diff) | |
btrfs: Introduce unaccount_log_buffer
This function correctly adjusts the reserved bytes occupied by a log
tree extent buffer. It will be used instead of calling
btrfs_pin_reserved_extent.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
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/btrfs')
| -rw-r--r-- | fs/btrfs/tree-log.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index 4ea47bac5fcf..32b087f543f2 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -18,6 +18,8 @@ #include "compression.h" #include "qgroup.h" #include "inode-map.h" +#include "block-group.h" +#include "space-info.h" /* magic values for the inode_only field in btrfs_log_inode: * @@ -2664,6 +2666,29 @@ static int replay_one_buffer(struct btrfs_root *log, struct extent_buffer *eb, return ret; } +/* + * Correctly adjust the reserved bytes occupied by a log tree extent buffer + */ +static void unaccount_log_buffer(struct btrfs_fs_info *fs_info, u64 start) +{ + struct btrfs_block_group *cache; + + cache = btrfs_lookup_block_group(fs_info, start); + if (!cache) { + btrfs_err(fs_info, "unable to find block group for %llu", start); + return; + } + + spin_lock(&cache->space_info->lock); + spin_lock(&cache->lock); + cache->reserved -= fs_info->nodesize; + cache->space_info->bytes_reserved -= fs_info->nodesize; + spin_unlock(&cache->lock); + spin_unlock(&cache->space_info->lock); + + btrfs_put_block_group(cache); +} + static noinline int walk_down_log_tree(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, int *level, |