summaryrefslogtreecommitdiff
path: root/fs/cifs/cifsfs.c
diff options
context:
space:
mode:
authorSteve French <stfrench@microsoft.com>2019-08-30 10:12:41 +0300
committerSteve French <stfrench@microsoft.com>2019-09-16 19:43:38 +0300
commit41e033fecdc891da629113c4f8ee80500b7656d6 (patch)
tree4a5814b5751e18229462828564d644b9b724d5fc /fs/cifs/cifsfs.c
parent1981ebaabd88a9b3e550b6163c570a498c32a1f5 (diff)
downloadlinux-41e033fecdc891da629113c4f8ee80500b7656d6.tar.xz
smb3: add mount option to allow RW caching of share accessed by only 1 client
If a share is known to be only to be accessed by one client, we can aggressively cache writes not just reads to it. Add "cache=" option (cache=singleclient) for mounting read write shares (that will not be read or written to from other clients while we have it mounted) in order to improve performance. Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/cifs/cifsfs.c')
-rw-r--r--fs/cifs/cifsfs.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 970251bc0661..de90e665ef11 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -400,6 +400,8 @@ cifs_show_cache_flavor(struct seq_file *s, struct cifs_sb_info *cifs_sb)
seq_puts(s, "strict");
else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO)
seq_puts(s, "none");
+ else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_RW_CACHE)
+ seq_puts(s, "singleclient"); /* assume only one client access */
else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_RO_CACHE)
seq_puts(s, "ro"); /* read only caching assumed */
else