bcachefs: Add bch2_blk_status_to_str()

We define our own BLK_STS_REMOVED, so we need our own to_str helper too.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

fs/bcachefs/btree_io.c

@@ -1149,7 +1149,7 @@ static void btree_node_read_work(struct work_struct *work)
 		}
 start:
 		bch2_dev_io_err_on(bio->bi_status, ca, "btree read: %s",
-				   blk_status_to_str(bio->bi_status));
+				   bch2_blk_status_to_str(bio->bi_status));
 		if (rb->have_ioref)
 			percpu_ref_put(&ca->io_ref);
 		rb->have_ioref = false;
@@ -1435,7 +1435,7 @@ static void btree_node_write_endio(struct bio *bio)
 		bch2_latency_acct(ca, wbio->submit_time, WRITE);
 
 	if (bch2_dev_io_err_on(bio->bi_status, ca, "btree write: %s",
-			       blk_status_to_str(bio->bi_status)) ||
+			       bch2_blk_status_to_str(bio->bi_status)) ||
 	    bch2_meta_write_fault("btree")) {
 		spin_lock_irqsave(&c->btree_write_error_lock, flags);
 		bch2_dev_list_add_dev(&orig->failed, wbio->dev);

fs/bcachefs/ec.c

@@ -328,7 +328,7 @@ static void ec_block_endio(struct bio *bio)
 
 	if (bch2_dev_io_err_on(bio->bi_status, ca, "erasure coding %s: %s",
 			       bio_data_dir(bio) ? "write" : "read",
-			       blk_status_to_str(bio->bi_status)))
+			       bch2_blk_status_to_str(bio->bi_status)))
 		clear_bit(ec_bio->idx, ec_bio->buf->valid);
 
 	bio_put(&ec_bio->bio);

fs/bcachefs/io.c

@@ -34,6 +34,13 @@
 #include <linux/random.h>
 #include <linux/sched/mm.h>
 
+const char *bch2_blk_status_to_str(blk_status_t status)
+{
+	if (status == BLK_STS_REMOVED)
+		return "device removed";
+	return blk_status_to_str(status);
+}
+
 #ifndef CONFIG_BCACHEFS_NO_LATENCY_ACCT
 
 static bool bch2_target_congested(struct bch_fs *c, u16 target)
@@ -626,7 +633,7 @@ static void bch2_write_endio(struct bio *bio)
 	struct bch_dev *ca		= bch_dev_bkey_exists(c, wbio->dev);
 
 	if (bch2_dev_io_err_on(bio->bi_status, ca, "data write: %s",
-			       blk_status_to_str(bio->bi_status)))
+			       bch2_blk_status_to_str(bio->bi_status)))
 		set_bit(wbio->dev, op->failed.d);
 
 	if (wbio->have_ioref) {
@@ -1921,7 +1928,7 @@ static void bch2_read_endio(struct bio *bio)
 		rbio->bio.bi_end_io = rbio->end_io;
 
 	if (bch2_dev_io_err_on(bio->bi_status, ca, "data read; %s",
-			       blk_status_to_str(bio->bi_status))) {
+			       bch2_blk_status_to_str(bio->bi_status))) {
 		bch2_rbio_error(rbio, READ_RETRY_AVOID, bio->bi_status);
 		return;
 	}

fs/bcachefs/io.h

@@ -26,6 +26,8 @@ void bch2_submit_wbio_replicas(struct bch_write_bio *, struct bch_fs *,
 
 #define BLK_STS_REMOVED		((__force blk_status_t)128)
 
+const char *bch2_blk_status_to_str(blk_status_t);
+
 enum bch_write_flags {
 	BCH_WRITE_ALLOC_NOWAIT		= (1 << 0),
 	BCH_WRITE_CACHED		= (1 << 1),

fs/bcachefs/journal_io.c

@@ -6,6 +6,7 @@
 #include "buckets.h"
 #include "checksum.h"
 #include "error.h"
+#include "io.h"
 #include "journal.h"
 #include "journal_io.h"
 #include "journal_reclaim.h"
@@ -961,7 +962,7 @@ static void journal_write_endio(struct bio *bio)
 	struct journal *j = &ca->fs->journal;
 
 	if (bch2_dev_io_err_on(bio->bi_status, ca, "journal write: %s",
-			       blk_status_to_str(bio->bi_status)) ||
+			       bch2_blk_status_to_str(bio->bi_status)) ||
 	    bch2_meta_write_fault("journal")) {
 		struct journal_buf *w = journal_prev_buf(j);
 		unsigned long flags;

fs/bcachefs/super-io.c

@@ -641,7 +641,7 @@ static void write_super_endio(struct bio *bio)
 	/* XXX: return errors directly */
 
 	if (bch2_dev_io_err_on(bio->bi_status, ca, "superblock write: %s",
-			       blk_status_to_str(bio->bi_status)))
+			       bch2_blk_status_to_str(bio->bi_status)))
 		ca->sb_write_error = 1;
 
 	closure_put(&ca->fs->sb_write);