diff options
Diffstat (limited to 'sys/dev/nvd/nvd.c')
| -rw-r--r-- | sys/dev/nvd/nvd.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/sys/dev/nvd/nvd.c b/sys/dev/nvd/nvd.c index 2017d79..889401b 100644 --- a/sys/dev/nvd/nvd.c +++ b/sys/dev/nvd/nvd.c @@ -214,9 +214,21 @@ nvd_bioq_process(void *arg, int pending) err = nvme_ns_bio_process(ndisk->ns, bp, nvd_done); + /* + * TODO: remove this loop and rely on GEOM's pacing once + * nvme(4) returns ENOMEM only for malloc() failures. + * Currently nvme(4) returns ENOMEM also for cases when + * the submission queue is completely full, and that case + * will be handled more elegantly in a future update. + */ + while (err == ENOMEM) { + pause("nvd enomem", 1); + err = nvme_ns_bio_process(ndisk->ns, bp, nvd_done); + } + if (err) { atomic_add_acq_int(&ndisk->cur_depth, -1); - bp->bio_error = EIO; + bp->bio_error = err; bp->bio_flags |= BIO_ERROR; bp->bio_resid = bp->bio_bcount; biodone(bp); |
