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