From: Deepa Dinamani <deepa.kernel@gmail.com>
To: viro@zeniv.linux.org.uk, linux-kernel@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org, y2038@lists.linaro.org,
arnd@arndb.de, mikulas@artax.karlin.mff.cuni.cz
Subject: [PATCH v8 17/20] fs: hpfs: Initialize filesystem timestamp ranges
Date: Sun, 18 Aug 2019 09:58:14 -0700 [thread overview]
Message-ID: <20190818165817.32634-18-deepa.kernel@gmail.com> (raw)
In-Reply-To: <20190818165817.32634-1-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.
Also change the local_to_gmt() to use time64_t instead
of time32_t.
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Cc: mikulas@artax.karlin.mff.cuni.cz
---
fs/hpfs/hpfs_fn.h | 6 ++----
fs/hpfs/super.c | 2 ++
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/fs/hpfs/hpfs_fn.h b/fs/hpfs/hpfs_fn.h
index ab2e7cc2ff33..1cca83218fb5 100644
--- a/fs/hpfs/hpfs_fn.h
+++ b/fs/hpfs/hpfs_fn.h
@@ -334,7 +334,7 @@ long hpfs_ioctl(struct file *file, unsigned cmd, unsigned long arg);
* local time (HPFS) to GMT (Unix)
*/
-static inline time64_t local_to_gmt(struct super_block *s, time32_t t)
+static inline time64_t local_to_gmt(struct super_block *s, time64_t t)
{
extern struct timezone sys_tz;
return t + sys_tz.tz_minuteswest * 60 + hpfs_sb(s)->sb_timeshift;
@@ -343,9 +343,7 @@ static inline time64_t local_to_gmt(struct super_block *s, time32_t t)
static inline time32_t gmt_to_local(struct super_block *s, time64_t t)
{
extern struct timezone sys_tz;
- t = t - sys_tz.tz_minuteswest * 60 - hpfs_sb(s)->sb_timeshift;
-
- return clamp_t(time64_t, t, 0, U32_MAX);
+ return t - sys_tz.tz_minuteswest * 60 - hpfs_sb(s)->sb_timeshift;
}
static inline time32_t local_get_seconds(struct super_block *s)
diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c
index 9db6d84f0d62..0a677a9aaf34 100644
--- a/fs/hpfs/super.c
+++ b/fs/hpfs/super.c
@@ -614,6 +614,8 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
s->s_magic = HPFS_SUPER_MAGIC;
s->s_op = &hpfs_sops;
s->s_d_op = &hpfs_dentry_operations;
+ s->s_time_min = local_to_gmt(s, 0);
+ s->s_time_max = local_to_gmt(s, U32_MAX);
sbi->sb_root = le32_to_cpu(superblock->root);
sbi->sb_fs_size = le32_to_cpu(superblock->n_sectors);
--
2.17.1
next prev parent reply other threads:[~2019-08-18 17:00 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-18 16:57 [PATCH v8 00/20] vfs: Add support for timestamp limits Deepa Dinamani
2019-08-18 16:57 ` [PATCH v8 01/20] vfs: Add file timestamp range support Deepa Dinamani
2019-08-18 16:57 ` [PATCH v8 02/20] vfs: Add timestamp_truncate() api Deepa Dinamani
2019-08-18 16:58 ` [PATCH v8 03/20] timestamp_truncate: Replace users of timespec64_trunc Deepa Dinamani
2019-08-18 18:34 ` Greg KH
2019-08-18 16:58 ` [PATCH v8 04/20] mount: Add mount warning for impending timestamp expiry Deepa Dinamani
2019-08-18 16:58 ` [PATCH v8 05/20] utimes: Clamp the timestamps before update Deepa Dinamani
2019-08-18 16:58 ` [PATCH v8 06/20] fs: Fill in max and min timestamps in superblock Deepa Dinamani
2019-08-20 11:28 ` Anders Larsen
[not found] ` <CAK+_RLmK0Vy79giAZnUCmmivvRT+GLZXyiMqBoFB0_Ed1W8BkA@mail.gmail.com>
2019-08-20 12:28 ` Tigran Aivazian
2019-08-18 16:58 ` [PATCH v8 07/20] 9p: Fill min and max timestamps in sb Deepa Dinamani
2019-08-18 16:58 ` [PATCH v8 08/20] adfs: Fill in max and min " Deepa Dinamani
2019-08-20 16:28 ` Matthew Wilcox
2019-08-20 23:55 ` Deepa Dinamani
2019-08-18 16:58 ` [PATCH v8 09/20] ext4: Initialize timestamps limits Deepa Dinamani
2019-08-18 16:58 ` [PATCH v8 10/20] fs: nfs: Initialize filesystem timestamp ranges Deepa Dinamani
2019-08-18 16:58 ` [PATCH v8 11/20] fs: cifs: " Deepa Dinamani
2019-08-18 16:58 ` [PATCH v8 12/20] fs: fat: " Deepa Dinamani
2019-08-18 16:58 ` [PATCH v8 13/20] fs: affs: " Deepa Dinamani
2019-08-18 16:58 ` [PATCH v8 14/20] fs: sysv: " Deepa Dinamani
2019-08-18 16:58 ` [PATCH v8 15/20] fs: ceph: " Deepa Dinamani
2019-08-18 16:58 ` [PATCH v8 16/20] fs: orangefs: " Deepa Dinamani
2019-08-18 16:58 ` Deepa Dinamani [this message]
2019-08-18 16:58 ` [PATCH v8 18/20] fs: omfs: " Deepa Dinamani
2019-08-18 16:58 ` [PATCH v8 19/20] pstore: fs superblock limits Deepa Dinamani
2019-08-20 7:20 ` Kees Cook
2019-08-21 0:03 ` Deepa Dinamani
2019-08-18 16:58 ` [PATCH v8 20/20] isofs: Initialize filesystem timestamp ranges Deepa Dinamani
2019-08-20 11:05 ` [PATCH v8 00/20] vfs: Add support for timestamp limits Jeff Layton
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