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| author |   Filipe Manana <fdmanana@suse.com> | 2023-07-26 16:57:02 +0100 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2023-08-21 14:52:17 +0200 |
| commit | 1ff9fee3bd2e865c81d29684dd40a91698f7999b (patch) | |
| tree | f4344884f3c8d39384feafa2efe6f925bf23489d | |
| parent | btrfs: print available space for a block group when dumping a space info (diff) | |
| download | wireguard-linux-1ff9fee3bd2e865c81d29684dd40a91698f7999b.tar.xz wireguard-linux-1ff9fee3bd2e865c81d29684dd40a91698f7999b.zip | |
btrfs: print available space across all block groups when dumping space info
When dumping a space info also sum the available space for all block
groups and then print it. This often useful for debugging -ENOSPC
related problems.
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
| -rw-r--r-- | fs/btrfs/space-info.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/btrfs/space-info.c b/fs/btrfs/space-info.c index 54d78e839c01..de0044283e29 100644 --- a/fs/btrfs/space-info.c +++ b/fs/btrfs/space-info.c @@ -510,6 +510,7 @@ void btrfs_dump_space_info(struct btrfs_fs_info *fs_info, int dump_block_groups) { struct btrfs_block_group *cache; + u64 total_avail = 0; int index = 0; spin_lock(&info->lock); @@ -537,10 +538,13 @@ again: avail, cache->ro ? "[readonly]" : ""); spin_unlock(&cache->lock); btrfs_dump_free_space(cache, bytes); + total_avail += avail; } if (++index < BTRFS_NR_RAID_TYPES) goto again; up_read(&info->groups_sem); + + btrfs_info(fs_info, "%llu bytes available across all block groups", total_avail); } static inline u64 calc_reclaim_items_nr(const struct btrfs_fs_info *fs_info, |