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authorNikolay Borisov <nborisov@suse.com>2017-12-15 12:05:37 +0200
committerDavid Sterba <dsterba@suse.com>2018-03-26 15:09:35 +0200
commit9a3daff320260723b9e64b5b3b9c6592a0cd006a (patch)
tree62f49eaa7887126348d424010dff68aa0e48cfa4 /fs/btrfs/extent-tree.c
parent45ae2c1841c31c90077cf427c09ea0e83e381026 (diff)
downloadblackbird-op-linux-9a3daff320260723b9e64b5b3b9c6592a0cd006a.tar.gz
blackbird-op-linux-9a3daff320260723b9e64b5b3b9c6592a0cd006a.zip
btrfs: Add enospc_debug printing in metadata_reserve_bytes
Currently when enospc_debug mount option is turned on we do not print any debug info in case metadata reservation failures happen. Fix this by adding the necessary hook in reserve_metadata_bytes. Signed-off-by: Nikolay Borisov <nborisov@suse.com> Reviewed-by: Qu Wenruo <wqu@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/extent-tree.c')
-rw-r--r--fs/btrfs/extent-tree.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 9a677860f64d..85258e85a030 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -5394,10 +5394,15 @@ static int reserve_metadata_bytes(struct btrfs_root *root,
!block_rsv_use_bytes(global_rsv, orig_bytes))
ret = 0;
}
- if (ret == -ENOSPC)
+ if (ret == -ENOSPC) {
trace_btrfs_space_reservation(fs_info, "space_info:enospc",
block_rsv->space_info->flags,
orig_bytes, 1);
+
+ if (btrfs_test_opt(fs_info, ENOSPC_DEBUG))
+ dump_space_info(fs_info, block_rsv->space_info,
+ orig_bytes, 0);
+ }
return ret;
}
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