[PATCH 6.6 117/299] cifs: change tcon status when need_reconnect is set on it

Greg Kroah-Hartman
2024-02-27T13:52:06Z

From: Shyam Prasad N <sprasad@microsoft.com>

[ Upstream commit c6e02eefd6ace3da3369c764f15429f5647056af ]

When a tcon is marked for need_reconnect, the intention
is to have it reconnected.

This change adjusts tcon->status in cifs_tree_connect
when need_reconnect is set. Also, this change has a minor
correction in resetting need_reconnect on success. It makes
sure that it is done with tc_lock held.

Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/smb/client/connect.c | 5 +++++
fs/smb/client/dfs.c | 7 ++++++-
fs/smb/client/file.c | 3 +++
3 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/fs/smb/client/connect.c b/fs/smb/client/connect.c
index 19440255944b0..c19eae07fa69a 100644
--- a/fs/smb/client/connect.c
+++ b/fs/smb/client/connect.c
@@ -4226,6 +4226,11 @@ int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon, const stru

/* only send once per connect */
spin_lock(&tcon->tc_lock);
+
+ /* if tcon is marked for needing reconnect, update state */
+ if (tcon->need_reconnect)
+ tcon->status = TID_NEED_TCON;
+
if (tcon->status == TID_GOOD) {
spin_unlock(&tcon->tc_lock);
return 0;
diff --git a/fs/smb/client/dfs.c b/fs/smb/client/dfs.c
index a8a1d386da656..449c59830039b 100644
--- a/fs/smb/client/dfs.c
+++ b/fs/smb/client/dfs.c
@@ -565,6 +565,11 @@ int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon, const stru

/* only send once per connect */
spin_lock(&tcon->tc_lock);
+
+ /* if tcon is marked for needing reconnect, update state */
+ if (tcon->need_reconnect)
+ tcon->status = TID_NEED_TCON;
+
if (tcon->status == TID_GOOD) {
spin_unlock(&tcon->tc_lock);
return 0;
@@ -625,8 +630,8 @@ int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon, const stru
spin_lock(&tcon->tc_lock);
if (tcon->status == TID_IN_TCON)
tcon->status = TID_GOOD;
- spin_unlock(&tcon->tc_lock);
tcon->need_reconnect = false;
+ spin_unlock(&tcon->tc_lock);
}

return rc;
diff --git a/fs/smb/client/file.c b/fs/smb/client/file.c
index 32a8525415d96..4cbb5487bd8d0 100644
--- a/fs/smb/client/file.c
+++ b/fs/smb/client/file.c
@@ -175,6 +175,9 @@ cifs_mark_open_files_invalid(struct cifs_tcon *tcon)

/* only send once per connect */
spin_lock(&tcon->tc_lock);
+ if (tcon->need_reconnect)
+ tcon->status = TID_NEED_RECON;
+
if (tcon->status != TID_NEED_RECON) {
spin_unlock(&tcon->tc_lock);
return;
--
2.43.0