| Message ID | afa8fe22bb5c6e18046b6a950cea399d31ab5407.1437386077.git.zhaolei@cn.fujitsu.com (mailing list archive) |
|---|---|
| State | Accepted |
| Headers | show |
Reviewed-by: Anand Jain <anand.jain@oracle.com> On 07/20/2015 05:55 PM, Zhaolei wrote: > From: Zhao Lei <zhaolei@cn.fujitsu.com> > > When mount failed because missing device, we can see following > dmesg: > [ 1060.267743] BTRFS: too many missing devices, writeable mount is not allowed > [ 1060.273158] BTRFS: open_ctree failed > > This patch add missing_device_number and tolerated_missing_device_number > to above output, to let user know what really happened, and helps > bug-report and debug. > > dmesg after patch: > [ 127.050367] BTRFS: missing devices(1) exceeds the limit(0), writeable mount is not allowed > [ 127.056099] BTRFS: open_ctree failed > > Changelog v1->v2: > 1: Changed to more clear description, suggested-by: > Anand Jain <anand.jain@oracle.com> > > Suggested-by: Anand Jain <anand.jain@oracle.com> > Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com> > --- > fs/btrfs/disk-io.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c > index 2eda03b..5b44e02 100644 > --- a/fs/btrfs/disk-io.c > +++ b/fs/btrfs/disk-io.c > @@ -2950,8 +2950,9 @@ retry_root_backup: > if (fs_info->fs_devices->missing_devices > > fs_info->num_tolerated_disk_barrier_failures && > !(sb->s_flags & MS_RDONLY)) { > - printk(KERN_WARNING "BTRFS: " > - "too many missing devices, writeable mount is not allowed\n"); > + pr_warn("BTRFS: missing devices(%llu) exceeds the limit(%d), writeable mount is not allowed\n", > + fs_info->fs_devices->missing_devices, > + fs_info->num_tolerated_disk_barrier_failures); > goto fail_sysfs; > } > > -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 2eda03b..5b44e02 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -2950,8 +2950,9 @@ retry_root_backup: if (fs_info->fs_devices->missing_devices > fs_info->num_tolerated_disk_barrier_failures && !(sb->s_flags & MS_RDONLY)) { - printk(KERN_WARNING "BTRFS: " - "too many missing devices, writeable mount is not allowed\n"); + pr_warn("BTRFS: missing devices(%llu) exceeds the limit(%d), writeable mount is not allowed\n", + fs_info->fs_devices->missing_devices, + fs_info->num_tolerated_disk_barrier_failures); goto fail_sysfs; }