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, trond.myklebust@hammerspace.com,
anna.schumaker@netapp.com, linux-nfs@vger.kernel.org
Subject: [PATCH 10/20] fs: nfs: Initialize filesystem timestamp ranges
Date: Mon, 29 Jul 2019 18:49:14 -0700 [thread overview]
Message-ID: <20190730014924.2193-11-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.
The time formats for various verious is detailed in the
RFCs as below:
https://tools.ietf.org/html/rfc7862(time metadata)
https://tools.ietf.org/html/rfc7530:
nfstime4
struct nfstime4 {
int64_t seconds;
uint32_t nseconds;
};
https://tools.ietf.org/html/rfc1094
struct timeval {
unsigned int seconds;
unsigned int useconds;
};
https://tools.ietf.org/html/rfc1813
struct nfstime3 {
uint32 seconds;
uint32 nseconds;
};
Use the limits as per the RFC.
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Cc: trond.myklebust@hammerspace.com
Cc: anna.schumaker@netapp.com
Cc: linux-nfs@vger.kernel.org
---
fs/nfs/super.c | 20 +++++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index f88ddac2dcdf..54eb5a47f180 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -2360,6 +2360,15 @@ void nfs_fill_super(struct super_block *sb, struct nfs_mount_info *mount_info)
sb->s_flags |= SB_POSIXACL;
sb->s_time_gran = 1;
sb->s_export_op = &nfs_export_ops;
+ } else
+ sb->s_time_gran = 1000;
+
+ if (server->nfs_client->rpc_ops->version != 4) {
+ sb->s_time_min = 0;
+ sb->s_time_max = U32_MAX;
+ } else {
+ sb->s_time_min = S64_MIN;
+ sb->s_time_max = S64_MAX;
}
nfs_initialise_sb(sb);
@@ -2380,7 +2389,6 @@ static void nfs_clone_super(struct super_block *sb,
sb->s_maxbytes = old_sb->s_maxbytes;
sb->s_xattr = old_sb->s_xattr;
sb->s_op = old_sb->s_op;
- sb->s_time_gran = 1;
sb->s_export_op = old_sb->s_export_op;
if (server->nfs_client->rpc_ops->version != 2) {
@@ -2388,6 +2396,16 @@ static void nfs_clone_super(struct super_block *sb,
* so ourselves when necessary.
*/
sb->s_flags |= SB_POSIXACL;
+ sb->s_time_gran = 1;
+ } else
+ sb->s_time_gran = 1000;
+
+ if (server->nfs_client->rpc_ops->version != 4) {
+ sb->s_time_min = 0;
+ sb->s_time_max = U32_MAX;
+ } else {
+ sb->s_time_min = S64_MIN;
+ sb->s_time_max = S64_MAX;
}
nfs_initialise_sb(sb);
--
2.17.1
next prev 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 ` Deepa Dinamani [this message]
2019-07-30 1:49 ` [PATCH 11/20] fs: cifs: Initialize filesystem timestamp ranges 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 ` [PATCH 20/20] isofs: Initialize filesystem timestamp ranges Deepa Dinamani
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