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From: Deepa Dinamani <deepa.kernel@gmail.com>
To: viro@zeniv.linux.org.uk, linux-kernel@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org, arnd@arndb.de, y2038@lists.linaro.org
Subject: [PATCH 20/20] isofs: Initialize filesystem timestamp ranges
Date: Mon, 29 Jul 2019 18:49:24 -0700	[thread overview]
Message-ID: <20190730014924.2193-21-deepa.kernel@gmail.com> (raw)
In-Reply-To: <20190730014924.2193-1-deepa.kernel@gmail.com>

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

Reference: http://www.ecma-international.org/publications/standards/Ecma-119.htm

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
---
 fs/isofs/inode.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index 9e30d8703735..62c0462dc89f 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -30,6 +30,9 @@
 #include "isofs.h"
 #include "zisofs.h"
 
+/* max tz offset is 13 hours */
+#define MAX_TZ_OFFSET (52*15*60)
+
 #define BEQUIET
 
 static int isofs_hashi(const struct dentry *parent, struct qstr *qstr);
@@ -801,6 +804,10 @@ static int isofs_fill_super(struct super_block *s, void *data, int silent)
 	 */
 	s->s_maxbytes = 0x80000000000LL;
 
+	/* ECMA-119 timestamp from 1900/1/1 with tz offset */
+	s->s_time_min = mktime64(1900, 1, 1, 0, 0, 0) - MAX_TZ_OFFSET;
+	s->s_time_max = mktime64(U8_MAX+1900, 12, 31, 23, 59, 59) + MAX_TZ_OFFSET;
+
 	/* Set this for reference. Its not currently used except on write
 	   which we don't have .. */
 
-- 
2.17.1


      parent reply	other threads:[~2019-07-30  1:50 UTC|newest]

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-30  1:49 [PATCH 00/20] vfs: Add support for timestamp limits Deepa Dinamani
2019-07-30  1:49 ` [PATCH 01/20] vfs: Add file timestamp range support Deepa Dinamani
2019-07-30  1:49 ` [PATCH 02/20] vfs: Add timestamp_truncate() api Deepa Dinamani
2019-07-30  1:49 ` [PATCH 03/20] timestamp_truncate: Replace users of timespec64_trunc Deepa Dinamani
2019-07-30  8:27   ` OGAWA Hirofumi
2019-07-30 17:26     ` Deepa Dinamani
2019-07-30 22:28       ` Anton Altaparmakov
2019-07-31  0:08         ` Deepa Dinamani
2019-07-30  1:49 ` [PATCH 04/20] mount: Add mount warning for impending timestamp expiry Deepa Dinamani
2019-08-05 14:12   ` [Y2038] " Ben Hutchings
2019-08-05 14:40     ` Arnd Bergmann
2019-08-10 20:47     ` Deepa Dinamani
2019-08-05 14:14   ` Ben Hutchings
2019-08-10 20:44     ` Deepa Dinamani
2019-08-12 13:25       ` Ben Hutchings
2019-08-12 14:11         ` Arnd Bergmann
2019-08-12 16:09           ` Deepa Dinamani
2019-08-12 16:15             ` Deepa Dinamani
2019-08-12 17:43               ` Ben Hutchings
2019-07-30  1:49 ` [PATCH 05/20] utimes: Clamp the timestamps before update Deepa Dinamani
2019-07-31 15:14   ` Darrick J. Wong
2019-07-31 15:33     ` Deepa Dinamani
2019-08-05 13:30   ` [Y2038] " Ben Hutchings
2019-08-10 20:36     ` Deepa Dinamani
2019-07-30  1:49 ` [PATCH 06/20] fs: Fill in max and min timestamps in superblock Deepa Dinamani
2019-07-31 15:28   ` Darrick J. Wong
2019-07-30  1:49 ` [PATCH 07/20] 9p: Fill min and max timestamps in sb Deepa Dinamani
2019-07-30  1:49 ` [PATCH 08/20] adfs: Fill in max and min " Deepa Dinamani
2019-07-30  1:49 ` [PATCH 09/20] ext4: Initialize timestamps limits Deepa Dinamani
2019-07-31 15:26   ` Darrick J. Wong
2019-08-01 19:18     ` Deepa Dinamani
2019-08-01 22:43       ` Theodore Y. Ts'o
2019-08-02 10:39         ` Arnd Bergmann
2019-08-02 15:43           ` Theodore Y. Ts'o
2019-08-02 19:00             ` Arnd Bergmann
2019-08-02 21:39               ` Theodore Y. Ts'o
2019-08-03  9:30                 ` Arnd Bergmann
2019-08-03 16:02                   ` Theodore Y. Ts'o
2019-08-03 20:24                     ` Arnd Bergmann
2019-08-07 18:04                       ` Andreas Dilger
2019-08-08 18:27                         ` Deepa Dinamani
2019-07-30  1:49 ` [PATCH 10/20] fs: nfs: Initialize filesystem timestamp ranges Deepa Dinamani
2019-07-30  1:49 ` [PATCH 11/20] fs: cifs: " Deepa Dinamani
2019-07-30  1:49 ` [PATCH 12/20] fs: fat: " Deepa Dinamani
2019-07-30  9:31   ` OGAWA Hirofumi
2019-07-30 17:39     ` Deepa Dinamani
2019-07-31  0:48       ` OGAWA Hirofumi
2019-07-30  1:49 ` [PATCH 13/20] fs: affs: " Deepa Dinamani
2019-08-01 11:28   ` David Sterba
2019-07-30  1:49 ` [PATCH 14/20] fs: sysv: " Deepa Dinamani
2019-07-30  1:49 ` [PATCH 15/20] fs: ceph: " Deepa Dinamani
2019-07-30  1:49 ` [PATCH 16/20] fs: orangefs: " Deepa Dinamani
2019-07-30  1:49 ` [PATCH 17/20] fs: hpfs: " Deepa Dinamani
2019-07-30  1:49 ` [PATCH 18/20] fs: omfs: " Deepa Dinamani
2019-07-30 14:25   ` Bob Copeland
2019-07-30  1:49 ` [PATCH 19/20] pstore: fs superblock limits Deepa Dinamani
2019-07-30  4:31   ` Kees Cook
2019-07-30  7:36     ` Arnd Bergmann
2019-08-02  2:26       ` Deepa Dinamani
2019-08-02  7:15         ` Arnd Bergmann
2019-08-18 14:00           ` Deepa Dinamani
2019-07-30  1:49 ` Deepa Dinamani [this message]

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