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| author | Paulo Alcantara <pc@cjr.nz> | 2021-11-03 13:53:29 -0300 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2021-11-10 16:30:13 -0600 |
| commit | c88f7dcd6d6429197fc2fd87b54a894ffcd48e8e (patch) | |
| tree | 136540ddd261ef46cfcfe87b3bc9e47417b45324 /fs/cifs/cifs_fs_sb.h | |
| parent | 71e6864eacbef0b2645ca043cdfbac272cb6cea3 (diff) | |
| download | linux-c88f7dcd6d6429197fc2fd87b54a894ffcd48e8e.tar.gz linux-c88f7dcd6d6429197fc2fd87b54a894ffcd48e8e.tar.bz2 linux-c88f7dcd6d6429197fc2fd87b54a894ffcd48e8e.zip | |
cifs: support nested dfs links over reconnect
Mounting a dfs link that has nested links was already supported at
mount(2), so make it work over reconnect as well.
Make the following case work:
* mount //root/dfs/link /mnt -o ...
- final share: /server/share
* in server settings
- change target folder of /root/dfs/link3 to /server/share2
- change target folder of /root/dfs/link2 to /root/dfs/link3
- change target folder of /root/dfs/link to /root/dfs/link2
* mount -o remount,... /mnt
- refresh all dfs referrals
- mark current connection for failover
- cifs_reconnect() reconnects to root server
- tree_connect()
* checks that /root/dfs/link2 is a link, then chase it
* checks that root/dfs/link3 is a link, then chase it
* finally tree connect to /server/share2
If the mounted share is no longer accessible and a reconnect had been
triggered, the client will retry it from both last referral
path (/root/dfs/link3) and original referral path (/root/dfs/link).
Any new referral paths found while chasing dfs links over reconnect,
it will be updated to TCP_Server_Info::leaf_fullpath, accordingly.
Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/cifs/cifs_fs_sb.h')
| -rw-r--r-- | fs/cifs/cifs_fs_sb.h | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/fs/cifs/cifs_fs_sb.h b/fs/cifs/cifs_fs_sb.h index f97407520ea1..013a4bd65280 100644 --- a/fs/cifs/cifs_fs_sb.h +++ b/fs/cifs/cifs_fs_sb.h @@ -61,11 +61,6 @@ struct cifs_sb_info { /* only used when CIFS_MOUNT_USE_PREFIX_PATH is set */ char *prepath; - /* - * Canonical DFS path initially provided by the mount call. We might connect to something - * different via DFS but we want to keep it to do failover properly. - */ - char *origin_fullpath; /* \\HOST\SHARE\[OPTIONAL PATH] */ /* randomly generated 128-bit number for indexing dfs mount groups in referral cache */ uuid_t dfs_mount_id; /* |