From: Miklos Szeredi <mszeredi@suse.cz>
Date: Wed, 11 Apr 2012 09:45:06 +0000 (+0200)
Subject: fuse: allow nanosecond granularity
X-Git-Tag: v3.4-rc4~28^2~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0a2da9b2ef2ef76c09397597f260245b020e6522;p=profile%2Fivi%2Fkernel-x86-ivi.git

fuse: allow nanosecond granularity

Derrik Pates reports that an utimensat with a NULL argument results in the
current time being sent from the kernel with 1 second granularity.

Reported-by: Derrik Pates <demon@now.ai>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---

diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 64cf8d0..c9a0c97 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -947,6 +947,7 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent)
 	sb->s_magic = FUSE_SUPER_MAGIC;
 	sb->s_op = &fuse_super_operations;
 	sb->s_maxbytes = MAX_LFS_FILESIZE;
+	sb->s_time_gran = 1;
 	sb->s_export_op = &fuse_export_operations;
 
 	file = fget(d.fd);