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Diffstat (limited to 'drivers/md/bcache/io.c')
-rw-r--r--drivers/md/bcache/io.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/md/bcache/io.c b/drivers/md/bcache/io.c
index 8013ecbcdbda..7fac97ae036e 100644
--- a/drivers/md/bcache/io.c
+++ b/drivers/md/bcache/io.c
@@ -50,6 +50,20 @@ void bch_submit_bbio(struct bio *bio, struct cache_set *c,
}
/* IO errors */
+void bch_count_backing_io_errors(struct cached_dev *dc, struct bio *bio)
+{
+ char buf[BDEVNAME_SIZE];
+ unsigned errors;
+
+ WARN_ONCE(!dc, "NULL pointer of struct cached_dev");
+
+ errors = atomic_add_return(1, &dc->io_errors);
+ if (errors < dc->error_limit)
+ pr_err("%s: IO error on backing device, unrecoverable",
+ bio_devname(bio, buf));
+ else
+ bch_cached_dev_error(dc);
+}
void bch_count_io_errors(struct cache *ca,
blk_status_t error,