linux-kernel - [PATCH 18/20] fs: omfs: Initialize filesystem timestamp ranges

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Message-Id: <20190730014924.2193-19-deepa.kernel@gmail.com>
Date:   Mon, 29 Jul 2019 18:49:22 -0700
From:   Deepa Dinamani <deepa.kernel@...il.com>
To:     viro@...iv.linux.org.uk, linux-kernel@...r.kernel.org
Cc:     linux-fsdevel@...r.kernel.org, arnd@...db.de,
        y2038@...ts.linaro.org, me@...copeland.com,
        linux-karma-devel@...ts.sourceforge.net
Subject: [PATCH 18/20] fs: omfs: Initialize filesystem timestamp ranges

Fill in the appropriate limits to avoid inconsistencies
in the vfs cached inode times when timestamps are
outside the permitted range.

Signed-off-by: Deepa Dinamani <deepa.kernel@...il.com>
Cc: me@...copeland.com
Cc: linux-karma-devel@...ts.sourceforge.net
---
 fs/omfs/inode.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/omfs/inode.c b/fs/omfs/inode.c
index 08226a835ec3..b76ec6b88ded 100644
--- a/fs/omfs/inode.c
+++ b/fs/omfs/inode.c
@@ -478,6 +478,10 @@ static int omfs_fill_super(struct super_block *sb, void *data, int silent)
 
 	sb->s_maxbytes = 0xffffffff;
 
+	sb->s_time_gran = NSEC_PER_MSEC;
+	sb->s_time_min = 0;
+	sb->s_time_max = U64_MAX / MSEC_PER_SEC;
+
 	sb_set_blocksize(sb, 0x200);
 
 	bh = sb_bread(sb, 0);
-- 
2.17.1