[PATCH 5.14 014/432] btrfs: zoned: suppress reclaim error message on EAGAIN

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From: Naohiro Aota <naohiro.aota@xxxxxxx>

commit ba86dd9fe60e5853fbff96f2658212908b83f271 upstream.

btrfs_relocate_chunk() can fail with -EAGAIN when e.g. send operations are
running. The message can fail btrfs/187 and it's unnecessary because we
anyway add it back to the reclaim list.

btrfs_reclaim_bgs_work()
`-> btrfs_relocate_chunk()
    `-> btrfs_relocate_block_group()
        `-> reloc_chunk_start()
            `-> if (fs_info->send_in_progress)
                `-> return -EAGAIN

CC: stable@xxxxxxxxxxxxxxx # 5.13+
Fixes: 18bb8bbf13c1 ("btrfs: zoned: automatically reclaim zones")
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@xxxxxxx>
Signed-off-by: Naohiro Aota <naohiro.aota@xxxxxxx>
Reviewed-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 fs/btrfs/block-group.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/btrfs/block-group.c
+++ b/fs/btrfs/block-group.c
@@ -1561,7 +1561,7 @@ void btrfs_reclaim_bgs_work(struct work_
 				div64_u64(zone_unusable * 100, bg->length));
 		trace_btrfs_reclaim_block_group(bg);
 		ret = btrfs_relocate_chunk(fs_info, bg->start);
-		if (ret)
+		if (ret && ret != -EAGAIN)
 			btrfs_err(fs_info, "error relocating chunk %llu",
 				  bg->start);
 





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