diff options
| author | Lu Fengqi <lufq.fnst@cn.fujitsu.com> | 2018-10-24 20:24:02 +0800 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2018-12-17 14:51:26 +0100 |
| commit | e2907c1a6ae1842f9c1d5393bbe966c1ccfbc335 (patch) | |
| tree | 3e71421186e5300a82000bf2b5abd486ef2fa9e2 /fs/btrfs/extent-tree.c | |
| parent | 9f9b8e8d0ebe1af42ddd3c86e12569c53914a89d (diff) | |
| download | linux-e2907c1a6ae1842f9c1d5393bbe966c1ccfbc335.tar.gz linux-e2907c1a6ae1842f9c1d5393bbe966c1ccfbc335.tar.bz2 linux-e2907c1a6ae1842f9c1d5393bbe966c1ccfbc335.zip | |
btrfs: extent-tree: Detect bytes_pinned underflow earlier
Introduce a new wrapper update_bytes_pinned to replace open coded
bytes_pinned modifiers. Now the underflows of space_info::bytes_pinned
get detected and reported.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/extent-tree.c')
| -rw-r--r-- | fs/btrfs/extent-tree.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 395d9d55835f..71ab8d9d2364 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -67,6 +67,7 @@ static inline void update_##name(struct btrfs_space_info *sinfo, \ } DECLARE_SPACE_INFO_UPDATE(bytes_may_use); +DECLARE_SPACE_INFO_UPDATE(bytes_pinned); static int __btrfs_free_extent(struct btrfs_trans_handle *trans, struct btrfs_delayed_ref_node *node, u64 parent, @@ -6165,7 +6166,7 @@ static int update_block_group(struct btrfs_trans_handle *trans, old_val -= num_bytes; btrfs_set_block_group_used(&cache->item, old_val); cache->pinned += num_bytes; - cache->space_info->bytes_pinned += num_bytes; + update_bytes_pinned(cache->space_info, num_bytes); cache->space_info->bytes_used -= num_bytes; cache->space_info->disk_used -= num_bytes * factor; spin_unlock(&cache->lock); @@ -6236,7 +6237,7 @@ static int pin_down_extent(struct btrfs_fs_info *fs_info, spin_lock(&cache->space_info->lock); spin_lock(&cache->lock); cache->pinned += num_bytes; - cache->space_info->bytes_pinned += num_bytes; + update_bytes_pinned(cache->space_info, num_bytes); if (reserved) { cache->reserved -= num_bytes; cache->space_info->bytes_reserved -= num_bytes; @@ -6601,7 +6602,7 @@ static int unpin_extent_range(struct btrfs_fs_info *fs_info, spin_lock(&space_info->lock); spin_lock(&cache->lock); cache->pinned -= len; - space_info->bytes_pinned -= len; + update_bytes_pinned(space_info, -len); trace_btrfs_space_reservation(fs_info, "pinned", space_info->flags, len, 0); @@ -10712,7 +10713,7 @@ void btrfs_delete_unused_bgs(struct btrfs_fs_info *fs_info) spin_lock(&space_info->lock); spin_lock(&block_group->lock); - space_info->bytes_pinned -= block_group->pinned; + update_bytes_pinned(space_info, -block_group->pinned); space_info->bytes_readonly += block_group->pinned; percpu_counter_add_batch(&space_info->total_bytes_pinned, -block_group->pinned, |