btrfs: print the block rsv type when we fail our reservation

To help with debugging, print the type of the block rsv when we fail to
use our target block rsv in btrfs_use_block_rsv.

This now produces:

 [  544.672035] BTRFS: block rsv 1 returned -28

which is still cryptic without consulting the enum in block-rsv.h but I
guess it's better than nothing.

Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
[ add note from Nikolay ]
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik 2020-10-26 16:57:26 -04:00 коммит произвёл David Sterba
Родитель a1fbc6750e
Коммит e38fdb7167
1 изменённых файлов: 2 добавлений и 1 удалений

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@ -511,7 +511,8 @@ again:
/*DEFAULT_RATELIMIT_BURST*/ 1);
if (__ratelimit(&_rs))
WARN(1, KERN_DEBUG
"BTRFS: block rsv returned %d\n", ret);
"BTRFS: block rsv %d returned %d\n",
block_rsv->type, ret);
}
try_reserve:
ret = btrfs_reserve_metadata_bytes(root, block_rsv, blocksize,