diff options
| author | Steve French <stfrench@microsoft.com> | 2018-06-30 00:06:15 +0300 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2018-08-07 22:15:56 +0300 |
| commit | 8a69e96e610b3ec8a55f6fd4e44363452838caa7 (patch) | |
| tree | f1ce27d75229626abf1202da8da9dda493bda660 /fs/cifs | |
| parent | c3ed44026cd07fda5976ecb79225759901a160b4 (diff) | |
| download | linux-8a69e96e610b3ec8a55f6fd4e44363452838caa7.tar.xz | |
smb3: snapshot mounts are read-only and make sure info is displayable about the mount
snapshot mounts were not marked as read-only and did not display the snapshot
time (in /proc/mounts) specified on mount
With this patch - note that can not write to the snapshot mount (see "ro" in
/proc/mounts line) and also the missing snapshot timewarp token time is
dumped. Sample line from /proc/mounts with the patch:
//127.0.0.1/scratch /mnt2 smb3 ro,relatime,vers=default,cache=strict,username=testuser,domain=,uid=0,noforceuid,gid=0,noforcegid,addr=127.0.0.1,file_mode=0755,dir_mode=0755,soft,nounix,serverino,mapposix,noperm,rsize=1048576,wsize=1048576,echo_interval=60,snapshot=1234567,actimeo=1 0 0
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Paulo Alcantara <palcantara@suse.de>
Diffstat (limited to 'fs/cifs')
| -rw-r--r-- | fs/cifs/cifsfs.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index c162a416ddbf..de16078e456b 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -139,6 +139,9 @@ cifs_read_super(struct super_block *sb) if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIXACL) sb->s_flags |= SB_POSIXACL; + if (tcon->snapshot_time) + sb->s_flags |= SB_RDONLY; + if (tcon->ses->capabilities & tcon->ses->server->vals->cap_large_files) sb->s_maxbytes = MAX_LFS_FILESIZE; else @@ -540,6 +543,8 @@ cifs_show_options(struct seq_file *s, struct dentry *root) seq_printf(s, ",wsize=%u", cifs_sb->wsize); seq_printf(s, ",echo_interval=%lu", tcon->ses->server->echo_interval / HZ); + if (tcon->snapshot_time) + seq_printf(s, ",snapshot=%llu", tcon->snapshot_time); /* convert actimeo and display it in seconds */ seq_printf(s, ",actimeo=%lu", cifs_sb->actimeo / HZ); |