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-rw-r--r--fs/cifs/cache.c9
-rw-r--r--fs/cifs/fscache.c17
-rw-r--r--fs/cifs/fscache.h9
3 files changed, 26 insertions, 9 deletions
diff --git a/fs/cifs/cache.c b/fs/cifs/cache.c
index b7420e605b28..0f2adecb94f2 100644
--- a/fs/cifs/cache.c
+++ b/fs/cifs/cache.c
@@ -53,13 +53,6 @@ const struct fscache_cookie_def cifs_fscache_server_index_def = {
.type = FSCACHE_COOKIE_TYPE_INDEX,
};
-/*
- * Auxiliary data attached to CIFS superblock within the cache
- */
-struct cifs_fscache_super_auxdata {
- u64 resource_id; /* unique server resource id */
-};
-
char *extract_sharename(const char *treename)
{
const char *src;
@@ -98,6 +91,8 @@ fscache_checkaux cifs_fscache_super_check_aux(void *cookie_netfs_data,
memset(&auxdata, 0, sizeof(auxdata));
auxdata.resource_id = tcon->resource_id;
+ auxdata.vol_create_time = tcon->vol_create_time;
+ auxdata.vol_serial_number = tcon->vol_serial_number;
if (memcmp(data, &auxdata, datalen) != 0)
return FSCACHE_CHECKAUX_OBSOLETE;
diff --git a/fs/cifs/fscache.c b/fs/cifs/fscache.c
index ea6ace9c2417..da688185403c 100644
--- a/fs/cifs/fscache.c
+++ b/fs/cifs/fscache.c
@@ -96,6 +96,7 @@ void cifs_fscache_get_super_cookie(struct cifs_tcon *tcon)
{
struct TCP_Server_Info *server = tcon->ses->server;
char *sharename;
+ struct cifs_fscache_super_auxdata auxdata;
sharename = extract_sharename(tcon->treeName);
if (IS_ERR(sharename)) {
@@ -104,11 +105,16 @@ void cifs_fscache_get_super_cookie(struct cifs_tcon *tcon)
return;
}
+ memset(&auxdata, 0, sizeof(auxdata));
+ auxdata.resource_id = tcon->resource_id;
+ auxdata.vol_create_time = tcon->vol_create_time;
+ auxdata.vol_serial_number = tcon->vol_serial_number;
+
tcon->fscache =
fscache_acquire_cookie(server->fscache,
&cifs_fscache_super_index_def,
sharename, strlen(sharename),
- &tcon->resource_id, sizeof(tcon->resource_id),
+ &auxdata, sizeof(auxdata),
tcon, 0, true);
kfree(sharename);
cifs_dbg(FYI, "%s: (0x%p/0x%p)\n",
@@ -117,8 +123,15 @@ void cifs_fscache_get_super_cookie(struct cifs_tcon *tcon)
void cifs_fscache_release_super_cookie(struct cifs_tcon *tcon)
{
+ struct cifs_fscache_super_auxdata auxdata;
+
+ memset(&auxdata, 0, sizeof(auxdata));
+ auxdata.resource_id = tcon->resource_id;
+ auxdata.vol_create_time = tcon->vol_create_time;
+ auxdata.vol_serial_number = tcon->vol_serial_number;
+
cifs_dbg(FYI, "%s: (0x%p)\n", __func__, tcon->fscache);
- fscache_relinquish_cookie(tcon->fscache, &tcon->resource_id, false);
+ fscache_relinquish_cookie(tcon->fscache, &auxdata, false);
tcon->fscache = NULL;
}
diff --git a/fs/cifs/fscache.h b/fs/cifs/fscache.h
index 8c0862e41306..1091633d2adb 100644
--- a/fs/cifs/fscache.h
+++ b/fs/cifs/fscache.h
@@ -28,6 +28,15 @@
#ifdef CONFIG_CIFS_FSCACHE
/*
+ * Auxiliary data attached to CIFS superblock within the cache
+ */
+struct cifs_fscache_super_auxdata {
+ u64 resource_id; /* unique server resource id */
+ __le64 vol_create_time;
+ u32 vol_serial_number;
+} __packed;
+
+/*
* Auxiliary data attached to CIFS inode within the cache
*/
struct cifs_fscache_inode_auxdata {