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authorQu Wenruo <quwenruo@cn.fujitsu.com>2017-03-09 09:34:42 +0800
committerDavid Sterba <dsterba@suse.com>2017-08-16 16:12:02 +0200
commitc55024514852930a6a31b6794aad44a56b117d9d (patch)
treeb271060548ef5c4df1de31d449bcc6d10892ff52 /fs/btrfs/volumes.h
parentbtrfs: Cleanup num_tolerated_disk_barrier_failures (diff)
downloadlinux-dev-c55024514852930a6a31b6794aad44a56b117d9d.tar.xz
linux-dev-c55024514852930a6a31b6794aad44a56b117d9d.zip
btrfs: Enhance message when a device is missing during mount
For a missing device, btrfs will just refuse to mount with almost meaningless kernel message like: BTRFS info (device vdb6): disk space caching is enabled BTRFS info (device vdb6): has skinny extents BTRFS error (device vdb6): failed to read the system array: -5 BTRFS error (device vdb6): open_ctree failed This patch will print a new message about the missing device: BTRFS info (device vdb6): disk space caching is enabled BTRFS info (device vdb6): has skinny extents BTRFS warning (device vdb6): devid 2 uuid 80470722-cad2-4b90-b7c3-fee294552f1b is missing BTRFS error (device vdb6): failed to read the system array: -5 BTRFS error (device vdb6): open_ctree failed Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Reviewed-by: Anand Jain <anand.jain@oracle.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/volumes.h')
-rw-r--r--fs/btrfs/volumes.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 5824cdc0b3fc..e906377ed329 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -544,5 +544,7 @@ void btrfs_set_fs_info_ptr(struct btrfs_fs_info *fs_info);
void btrfs_reset_fs_info_ptr(struct btrfs_fs_info *fs_info);
bool btrfs_check_rw_degradable(struct btrfs_fs_info *fs_info);
+void btrfs_report_missing_device(struct btrfs_fs_info *fs_info, u64 devid,
+ u8 *uuid);
#endif