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nfs/blocklayout: Report only when /no/ device is found

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Since commit f931d8374c ("nfs/blocklayout: refactor block device
opening"), an error is reported when no multi-path device is found.
But this isn't a fatal error if the subsequent device open is
successful. On systems without multi-path devices, this message
always appears whether there is a problem or not.

Instead, generate less system journal noise by reporting an error
only when both open attempts fail. The new error message is more
actionable since it indicates that there is a real configuration
issue to be addressed.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Chuck Lever 2024-06-25 16:02:07 -04:00 committed by Anna Schumaker
parent d869da91cc
commit 450b4b3b2f
1 changed files with 5 additions and 2 deletions
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7
fs/nfs/blocklayout/dev.c
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@ -369,7 +369,7 @@ bl_open_path(struct pnfs_block_volume *v, const char *prefix)
bdev_file = bdev_file_open_by_path(devname, BLK_OPEN_READ | BLK_OPEN_WRITE,
NULL, NULL);
if (IS_ERR(bdev_file)) {
pr_warn("pNFS: failed to open device %s (%ld)\n",
dprintk("failed to open device %s (%ld)\n",
devname, PTR_ERR(bdev_file));
}
@ -398,8 +398,11 @@ bl_parse_scsi(struct nfs_server *server, struct pnfs_block_dev *d,
bdev_file = bl_open_path(v, "dm-uuid-mpath-0x");
if (IS_ERR(bdev_file))
bdev_file = bl_open_path(v, "wwn-0x");
if (IS_ERR(bdev_file))
if (IS_ERR(bdev_file)) {
pr_warn("pNFS: no device found for volume %*phN\n",
v->scsi.designator_len, v->scsi.designator);
return PTR_ERR(bdev_file);
}
d->bdev_file = bdev_file;
d->len = bdev_nr_bytes(file_bdev(d->bdev_file));