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Commit 553292a6 authored by Steve French's avatar Steve French
Browse files

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: default avatarSteve French <stfrench@microsoft.com>
parent d532cc7e

fs/cifs/cifsfs.c

+7 −1
Original line number Diff line number Diff line
@@ -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) &&