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authorRitvik Budhiraja <rbudhiraja@microsoft.com>2024-04-02 14:01:28 -0500
committerSteve French <stfrench@microsoft.com>2024-04-03 14:43:24 -0500
commit173217bd73365867378b5e75a86f0049e1069ee8 (patch)
tree4357a373f7c39bbd02b98fa3f20aec7089f1cd0b /fs/smb/client/cifsfs.c
parent93cee45ccfebc62a3bb4cd622b89e00c8c7d8493 (diff)
smb3: retrying on failed server close
In the current implementation, CIFS close sends a close to the server and does not check for the success of the server close. This patch adds functionality to check for server close return status and retries in case of an EBUSY or EAGAIN error. This can help avoid handle leaks Cc: stable@vger.kernel.org Signed-off-by: Ritvik Budhiraja <rbudhiraja@microsoft.com> Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/smb/client/cifsfs.c')
-rw-r--r--fs/smb/client/cifsfs.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/smb/client/cifsfs.c b/fs/smb/client/cifsfs.c
index aa6f1ecb7c0e..d41eedbff674 100644
--- a/fs/smb/client/cifsfs.c
+++ b/fs/smb/client/cifsfs.c
@@ -156,6 +156,7 @@ struct workqueue_struct *decrypt_wq;
struct workqueue_struct *fileinfo_put_wq;
struct workqueue_struct *cifsoplockd_wq;
struct workqueue_struct *deferredclose_wq;
+struct workqueue_struct *serverclose_wq;
__u32 cifs_lock_secret;
/*
@@ -1888,6 +1889,13 @@ init_cifs(void)
goto out_destroy_cifsoplockd_wq;
}
+ serverclose_wq = alloc_workqueue("serverclose",
+ WQ_FREEZABLE|WQ_MEM_RECLAIM, 0);
+ if (!serverclose_wq) {
+ rc = -ENOMEM;
+ goto out_destroy_serverclose_wq;
+ }
+
rc = cifs_init_inodecache();
if (rc)
goto out_destroy_deferredclose_wq;
@@ -1962,6 +1970,8 @@ out_destroy_decrypt_wq:
destroy_workqueue(decrypt_wq);
out_destroy_cifsiod_wq:
destroy_workqueue(cifsiod_wq);
+out_destroy_serverclose_wq:
+ destroy_workqueue(serverclose_wq);
out_clean_proc:
cifs_proc_clean();
return rc;
@@ -1991,6 +2001,7 @@ exit_cifs(void)
destroy_workqueue(cifsoplockd_wq);
destroy_workqueue(decrypt_wq);
destroy_workqueue(fileinfo_put_wq);
+ destroy_workqueue(serverclose_wq);
destroy_workqueue(cifsiod_wq);
cifs_proc_clean();
}