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| author |  Paulo Alcantara <pc@manguebit.com>
| 2023-04-27 04:40:08 -0300 |
|---|---|---|
| committer |  Steve French <stfrench@microsoft.com>
| 2023-05-03 23:29:47 -0500 |
| commit | 6be2ea33a4093402252724a00c4af8033725184c (patch) | |
| tree | 79c111db007aed6fab0cb82837480909e17eaabb /fs/cifs/dfs.c | |
| parent | cifs: protect access of TCP_Server_Info::{origin,leaf}_fullpath (diff) | |
| download | linux-6be2ea33a4093402252724a00c4af8033725184c.tar.gz linux-6be2ea33a4093402252724a00c4af8033725184c.tar.bz2 linux-6be2ea33a4093402252724a00c4af8033725184c.zip | |
cifs: avoid potential races when handling multiple dfs tcons
Now that a DFS tcon manages its own list of DFS referrals and
sessions, there is no point in having a single worker to refresh
referrals of all DFS tcons. Make it faster and less prone to race
conditions when having several mounts by queueing a worker per DFS
tcon that will take care of refreshing only the DFS referrals related
to it.
Cc: stable@vger.kernel.org # v6.2+
Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/cifs/dfs.c')
| -rw-r--r-- | fs/cifs/dfs.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/cifs/dfs.c b/fs/cifs/dfs.c index c4ec5c67087b..da4e083b1ab4 100644 --- a/fs/cifs/dfs.c +++ b/fs/cifs/dfs.c @@ -157,6 +157,8 @@ static int get_dfs_conn(struct cifs_mount_ctx *mnt_ctx, const char *ref_path, co rc = cifs_is_path_remote(mnt_ctx); } + dfs_cache_noreq_update_tgthint(ref_path + 1, tit); + if (rc == -EREMOTE && is_refsrv) { rc2 = get_root_smb_session(mnt_ctx); if (rc2) @@ -259,6 +261,8 @@ static int __dfs_mount_share(struct cifs_mount_ctx *mnt_ctx) if (list_empty(&tcon->dfs_ses_list)) { list_replace_init(&mnt_ctx->dfs_ses_list, &tcon->dfs_ses_list); + queue_delayed_work(dfscache_wq, &tcon->dfs_cache_work, + dfs_cache_get_ttl() * HZ); } else { dfs_put_root_smb_sessions(&mnt_ctx->dfs_ses_list); } |