diff options
| author | Steve French <stfrench@microsoft.com> | 2019-10-11 17:36:13 -0700 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2019-10-20 19:19:49 -0500 |
| commit | 553292a6342bc9e5636953ac6e20bccedaacbd1c (patch) | |
| tree | 55fbe34d42bf637811fda0caba63f1bc120f166b /fs | |
| parent | d532cc7efdfd7bf4b9e1c287d823e584843f1de1 (diff) | |
cifs: clarify comment about timestamp granularity for old servers
It could be confusing why we set granularity to 1 seconds rather
than 2 seconds (1 second is the max the VFS allows) for these
mounts to very old servers ...
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/cifs/cifsfs.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index c049c7b3aa87..1a135d1b85bd 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -169,7 +169,13 @@ cifs_read_super(struct super_block *sb) else sb->s_maxbytes = MAX_NON_LFS; - /* Some very old servers like DOS and OS/2 used 2 second granularity */ + /* + * Some very old servers like DOS and OS/2 used 2 second granularity + * (while all current servers use 100ns granularity - see MS-DTYP) + * but 1 second is the maximum allowed granularity for the VFS + * so for old servers set time granularity to 1 second while for + * everything else (current servers) set it to 100ns. + */ if ((tcon->ses->server->vals->protocol_id == SMB10_PROT_ID) && ((tcon->ses->capabilities & tcon->ses->server->vals->cap_nt_find) == 0) && |