diff options
| author | Steve French <stfrench@microsoft.com> | 2019-08-27 23:58:54 -0500 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2019-09-16 11:43:37 -0500 |
| commit | 83bbfa706dda668deb60e96df20327fc79e1716f (patch) | |
| tree | d9682e25e2b3219df510e4f3002c105adf5f36f1 /fs/cifs/cifs_fs_sb.h | |
| parent | ac6ad7a8c9f6f1fd43262b2273a45ec1fdd3a981 (diff) | |
smb3: add mount option to allow forced caching of read only share
If a share is immutable (at least for the period that it will
be mounted) it would be helpful to not have to revalidate
dentries repeatedly that we know can not be changed remotely.
Add "cache=" option (cache=ro) for mounting read only shares
in order to improve performance in cases in which we know that
the share will not be changing while it is in use.
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/cifs/cifs_fs_sb.h')
| -rw-r--r-- | fs/cifs/cifs_fs_sb.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/cifs/cifs_fs_sb.h b/fs/cifs/cifs_fs_sb.h index b326d2ca3765..286a104c4761 100644 --- a/fs/cifs/cifs_fs_sb.h +++ b/fs/cifs/cifs_fs_sb.h @@ -53,6 +53,7 @@ #define CIFS_MOUNT_NO_HANDLE_CACHE 0x4000000 /* disable caching dir handles */ #define CIFS_MOUNT_NO_DFS 0x8000000 /* disable DFS resolving */ #define CIFS_MOUNT_MODE_FROM_SID 0x10000000 /* retrieve mode from special ACE */ +#define CIFS_MOUNT_RO_CACHE 0x20000000 /* assumes share will not change */ struct cifs_sb_info { struct rb_root tlink_tree; |