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| author | Paulo Alcantara <pc@cjr.nz> | 2022-12-29 16:33:55 +0100 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2023-01-04 07:10:19 +0100 |
| commit | 9e6002c8738a9d5675ba706fcdbc0a544f814974 (patch) | |
| tree | a398f6cdb974c49874c58cf11166d107c4a45362 | |
| parent | cifs: Fix kmap_local_page() unmapping (diff) | |
| download | linux-9e6002c8738a9d5675ba706fcdbc0a544f814974.tar.xz linux-9e6002c8738a9d5675ba706fcdbc0a544f814974.zip | |
cifs: ignore ipc reconnect failures during dfs failover
If it failed to reconnect ipc used for getting referrals, we can just
ignore it as it is not required for reconnecting the share. The worst
case would be not being able to detect or chase nested links as long
as dfs root server is unreachable.
Before patch:
$ mount.cifs //root/dfs/link /mnt -o echo_interval=10,...
-> target share: /fs0/share
disconnect root & fs0
$ ls /mnt
ls: cannot access '/mnt': Host is down
connect fs0
$ ls /mnt
ls: cannot access '/mnt': Resource temporarily unavailable
After patch:
$ mount.cifs //root/dfs/link /mnt -o echo_interval=10,...
-> target share: /fs0/share
disconnect root & fs0
$ ls /mnt
ls: cannot access '/mnt': Host is down
connect fs0
$ ls /mnt
bar.rtf dir1 foo
Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Reviewed-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Steve French <stfrench@microsoft.com>
| -rw-r--r-- | fs/cifs/dfs.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/cifs/dfs.c b/fs/cifs/dfs.c index b541e68378f6..30086f2060a1 100644 --- a/fs/cifs/dfs.c +++ b/fs/cifs/dfs.c @@ -401,8 +401,7 @@ static int __tree_connect_dfs_target(const unsigned int xid, struct cifs_tcon *t if (ipc->need_reconnect) { scnprintf(tree, MAX_TREE_SIZE, "\\\\%s\\IPC$", server->hostname); rc = ops->tree_connect(xid, ipc->ses, tree, ipc, cifs_sb->local_nls); - if (rc) - break; + cifs_dbg(FYI, "%s: reconnect ipc: %d\n", __func__, rc); } scnprintf(tree, MAX_TREE_SIZE, "\\%s", share); |