[PATCH 16/27] afs: Retain more of the VLDB record for alias detection

David Howells
2020-05-29T22:02:11Z

Save more bits from the volume location database record obtained for a
server so that we can use this information in cell alias detection.

Signed-off-by: David Howells <dhowells@redhat.com>
---

fs/afs/internal.h | 3 ++-
fs/afs/server_list.c | 3 +++
2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/fs/afs/internal.h b/fs/afs/internal.h
index 9f024c1bd650..dce03e068cab 100644
--- a/fs/afs/internal.h
+++ b/fs/afs/internal.h
@@ -546,7 +546,7 @@ struct afs_cb_interest {
};

/*
- * Replaceable server list.
+ * Replaceable volume server list.
*/
struct afs_server_entry {
struct afs_server *server;
@@ -554,6 +554,7 @@ struct afs_server_entry {
};

struct afs_server_list {
+ afs_volid_t vids[AFS_MAXTYPES]; /* Volume IDs */
refcount_t usage;
unsigned char nr_servers;
unsigned char preferred; /* Preferred server */
diff --git a/fs/afs/server_list.c b/fs/afs/server_list.c
index b77e50f62459..a35f6951a74a 100644
--- a/fs/afs/server_list.c
+++ b/fs/afs/server_list.c
@@ -46,6 +46,9 @@ struct afs_server_list *afs_alloc_server_list(struct afs_cell *cell,
refcount_set(&slist->usage, 1);
rwlock_init(&slist->lock);

+ for (i = 0; i < AFS_MAXTYPES; i++)
+ slist->vids[i] = vldb->vid[i];
+
/* Make sure a records exists for each server in the list. */
for (i = 0; i < vldb->nr_servers; i++) {
if (!(vldb->fs_mask[i] & type_mask))