From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-it0-f68.google.com ([209.85.214.68]:51135 "EHLO mail-it0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752113AbeCZVXj (ORCPT ); Mon, 26 Mar 2018 17:23:39 -0400 Received: by mail-it0-f68.google.com with SMTP id d13-v6so12554776itf.0 for ; Mon, 26 Mar 2018 14:23:38 -0700 (PDT) To: linux-fsdevel@vger.kernel.org, OGAWA Hirofumi From: Frank Sorenson Subject: [PATCH] fat: set s_time_gran for msdos or vfat mounts Message-ID: Date: Mon, 26 Mar 2018 16:23:36 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-fsdevel-owner@vger.kernel.org List-ID: Author: Frank Sorenson Date: 2018-01-23 15:51:37 -0600 fat: set the s_time_gran for msdos or vfat mounts For vfat, ctime granularity is 10ms; set the super_block's s_time_gran to 10ms for vfat and 1 second for msdos mounts. Signed-off-by: Frank Sorenson diff --git a/fs/fat/inode.c b/fs/fat/inode.c index 20a0a89eaca5..ff10cdf07a93 100644 --- a/fs/fat/inode.c +++ b/fs/fat/inode.c @@ -1612,6 +1612,7 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, int isvfat, sb->s_magic = MSDOS_SUPER_MAGIC; sb->s_op = &fat_sops; sb->s_export_op = &fat_export_ops; + sb->s_time_gran = isvfat ? 10000000 : 1000000000; mutex_init(&sbi->nfs_build_inode_lock); ratelimit_state_init(&sbi->ratelimit, DEFAULT_RATELIMIT_INTERVAL, DEFAULT_RATELIMIT_BURST);