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, aivazian.tigran@gmail.com,
al@alarsen.net, coda@cs.cmu.edu, darrick.wong@oracle.com,
dushistov@mail.ru, dwmw2@infradead.org, hch@infradead.org,
jack@suse.com, jaharkes@cs.cmu.edu, luisbg@kernel.org,
nico@fluxnic.net, phillip@squashfs.org.uk, richard@nod.at,
salah.triki@gmail.com, shaggy@kernel.org,
linux-xfs@vger.kernel.org, codalist@coda.cs.cmu.edu,
linux-ext4@vger.kernel.org, linux-mtd@lists.infradead.org,
jfs-discussion@lists.sourceforge.net,
reiserfs-devel@vger.kernel.org
Subject: [PATCH 06/20] fs: Fill in max and min timestamps in superblock
Date: Mon, 29 Jul 2019 18:49:10 -0700 [thread overview]
Message-ID: <20190730014924.2193-7-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.
Even though some filesystems are read-only, fill in the
timestamps to reflect the on-disk representation.
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Cc: aivazian.tigran@gmail.com
Cc: al@alarsen.net
Cc: coda@cs.cmu.edu
Cc: darrick.wong@oracle.com
Cc: dushistov@mail.ru
Cc: dwmw2@infradead.org
Cc: hch@infradead.org
Cc: jack@suse.com
Cc: jaharkes@cs.cmu.edu
Cc: luisbg@kernel.org
Cc: nico@fluxnic.net
Cc: phillip@squashfs.org.uk
Cc: richard@nod.at
Cc: salah.triki@gmail.com
Cc: shaggy@kernel.org
Cc: linux-xfs@vger.kernel.org
Cc: codalist@coda.cs.cmu.edu
Cc: linux-ext4@vger.kernel.org
Cc: linux-mtd@lists.infradead.org
Cc: jfs-discussion@lists.sourceforge.net
Cc: reiserfs-devel@vger.kernel.org
---
fs/befs/linuxvfs.c | 2 ++
fs/bfs/inode.c | 2 ++
fs/coda/inode.c | 3 +++
fs/cramfs/inode.c | 2 ++
fs/efs/super.c | 2 ++
fs/ext2/super.c | 2 ++
fs/freevxfs/vxfs_super.c | 2 ++
fs/jffs2/fs.c | 3 +++
fs/jfs/super.c | 2 ++
fs/minix/inode.c | 2 ++
fs/qnx4/inode.c | 2 ++
fs/qnx6/inode.c | 2 ++
fs/reiserfs/super.c | 3 +++
fs/romfs/super.c | 2 ++
fs/squashfs/super.c | 2 ++
fs/ufs/super.c | 7 +++++++
fs/xfs/xfs_super.c | 2 ++
17 files changed, 42 insertions(+)
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index 462d096ff3e9..64cdf4d8e424 100644
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -893,6 +893,8 @@ befs_fill_super(struct super_block *sb, void *data, int silent)
sb_set_blocksize(sb, (ulong) befs_sb->block_size);
sb->s_op = &befs_sops;
sb->s_export_op = &befs_export_operations;
+ sb->s_time_min = 0;
+ sb->s_time_max = 0xffffffffffffll;
root = befs_iget(sb, iaddr2blockno(sb, &(befs_sb->root_dir)));
if (IS_ERR(root)) {
ret = PTR_ERR(root);
diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c
index 5e97bed073d7..f8ce1368218b 100644
--- a/fs/bfs/inode.c
+++ b/fs/bfs/inode.c
@@ -324,6 +324,8 @@ static int bfs_fill_super(struct super_block *s, void *data, int silent)
return -ENOMEM;
mutex_init(&info->bfs_lock);
s->s_fs_info = info;
+ s->s_time_min = 0;
+ s->s_time_max = U32_MAX;
sb_set_blocksize(s, BFS_BSIZE);
diff --git a/fs/coda/inode.c b/fs/coda/inode.c
index 321f56e487cb..b1c70e2b9b1e 100644
--- a/fs/coda/inode.c
+++ b/fs/coda/inode.c
@@ -188,6 +188,9 @@ static int coda_fill_super(struct super_block *sb, void *data, int silent)
sb->s_magic = CODA_SUPER_MAGIC;
sb->s_op = &coda_super_operations;
sb->s_d_op = &coda_dentry_operations;
+ sb->s_time_gran = 1;
+ sb->s_time_min = S64_MIN;
+ sb->s_time_max = S64_MAX;
error = super_setup_bdi(sb);
if (error)
diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c
index 9352487bd0fc..4d1d8b7761ed 100644
--- a/fs/cramfs/inode.c
+++ b/fs/cramfs/inode.c
@@ -597,6 +597,8 @@ static int cramfs_finalize_super(struct super_block *sb,
/* Set it all up.. */
sb->s_flags |= SB_RDONLY;
+ sb->s_time_min = 0;
+ sb->s_time_max = 0;
sb->s_op = &cramfs_ops;
root = get_cramfs_inode(sb, cramfs_root, 0);
if (IS_ERR(root))
diff --git a/fs/efs/super.c b/fs/efs/super.c
index 867fc24dee20..4a6ebff2af76 100644
--- a/fs/efs/super.c
+++ b/fs/efs/super.c
@@ -257,6 +257,8 @@ static int efs_fill_super(struct super_block *s, void *d, int silent)
if (!sb)
return -ENOMEM;
s->s_fs_info = sb;
+ s->s_time_min = 0;
+ s->s_time_max = U32_MAX;
s->s_magic = EFS_SUPER_MAGIC;
if (!sb_set_blocksize(s, EFS_BLOCKSIZE)) {
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index 44eb6e7eb492..baa36c6fb71e 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -1002,6 +1002,8 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
sb->s_maxbytes = ext2_max_size(sb->s_blocksize_bits);
sb->s_max_links = EXT2_LINK_MAX;
+ sb->s_time_min = S32_MIN;
+ sb->s_time_max = S32_MAX;
if (le32_to_cpu(es->s_rev_level) == EXT2_GOOD_OLD_REV) {
sbi->s_inode_size = EXT2_GOOD_OLD_INODE_SIZE;
diff --git a/fs/freevxfs/vxfs_super.c b/fs/freevxfs/vxfs_super.c
index a89f68c3cbed..578a5062706e 100644
--- a/fs/freevxfs/vxfs_super.c
+++ b/fs/freevxfs/vxfs_super.c
@@ -229,6 +229,8 @@ static int vxfs_fill_super(struct super_block *sbp, void *dp, int silent)
sbp->s_op = &vxfs_super_ops;
sbp->s_fs_info = infp;
+ sbp->s_time_min = 0;
+ sbp->s_time_max = U32_MAX;
if (!vxfs_try_sb_magic(sbp, silent, 1,
(__force __fs32)cpu_to_le32(VXFS_SUPER_MAGIC))) {
diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c
index 8a20ddd25f2d..d0b59d03a7a9 100644
--- a/fs/jffs2/fs.c
+++ b/fs/jffs2/fs.c
@@ -590,6 +590,9 @@ int jffs2_do_fill_super(struct super_block *sb, void *data, int silent)
sb->s_blocksize = PAGE_SIZE;
sb->s_blocksize_bits = PAGE_SHIFT;
sb->s_magic = JFFS2_SUPER_MAGIC;
+ sb->s_time_min = 0;
+ sb->s_time_max = U32_MAX;
+
if (!sb_rdonly(sb))
jffs2_start_garbage_collect_thread(c);
return 0;
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index f4e10cb9f734..b2dc4d1f9dcc 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -503,6 +503,8 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent)
sb->s_fs_info = sbi;
sb->s_max_links = JFS_LINK_MAX;
+ sb->s_time_min = 0;
+ sb->s_time_max = U32_MAX;
sbi->sb = sb;
sbi->uid = INVALID_UID;
sbi->gid = INVALID_GID;
diff --git a/fs/minix/inode.c b/fs/minix/inode.c
index f96073f25432..7cb5fd38eb14 100644
--- a/fs/minix/inode.c
+++ b/fs/minix/inode.c
@@ -277,6 +277,8 @@ static int minix_fill_super(struct super_block *s, void *data, int silent)
/* set up enough so that it can read an inode */
s->s_op = &minix_sops;
+ s->s_time_min = 0;
+ s->s_time_max = U32_MAX;
root_inode = minix_iget(s, MINIX_ROOT_INO);
if (IS_ERR(root_inode)) {
ret = PTR_ERR(root_inode);
diff --git a/fs/qnx4/inode.c b/fs/qnx4/inode.c
index 922d083bbc7c..e8da1cde87b9 100644
--- a/fs/qnx4/inode.c
+++ b/fs/qnx4/inode.c
@@ -201,6 +201,8 @@ static int qnx4_fill_super(struct super_block *s, void *data, int silent)
s->s_op = &qnx4_sops;
s->s_magic = QNX4_SUPER_MAGIC;
s->s_flags |= SB_RDONLY; /* Yup, read-only yet */
+ s->s_time_min = 0;
+ s->s_time_max = U32_MAX;
/* Check the superblock signature. Since the qnx4 code is
dangerous, we should leave as quickly as possible
diff --git a/fs/qnx6/inode.c b/fs/qnx6/inode.c
index 0f8b0ff1ba43..345db56c98fd 100644
--- a/fs/qnx6/inode.c
+++ b/fs/qnx6/inode.c
@@ -429,6 +429,8 @@ static int qnx6_fill_super(struct super_block *s, void *data, int silent)
s->s_op = &qnx6_sops;
s->s_magic = QNX6_SUPER_MAGIC;
s->s_flags |= SB_RDONLY; /* Yup, read-only yet */
+ s->s_time_min = 0;
+ s->s_time_max = U32_MAX;
/* ease the later tree level calculations */
sbi = QNX6_SB(s);
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index ab028ea0e561..d69b4ac0ae2f 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -1976,6 +1976,9 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
goto error_unlocked;
}
+ s->s_time_min = 0;
+ s->s_time_max = U32_MAX;
+
rs = SB_DISK_SUPER_BLOCK(s);
/*
* Let's do basic sanity check to verify that underlying device is not
diff --git a/fs/romfs/super.c b/fs/romfs/super.c
index 7d580f7c3f1d..a42c0e3079dc 100644
--- a/fs/romfs/super.c
+++ b/fs/romfs/super.c
@@ -478,6 +478,8 @@ static int romfs_fill_super(struct super_block *sb, void *data, int silent)
sb->s_maxbytes = 0xFFFFFFFF;
sb->s_magic = ROMFS_MAGIC;
sb->s_flags |= SB_RDONLY | SB_NOATIME;
+ sb->s_time_min = 0;
+ sb->s_time_max = 0;
sb->s_op = &romfs_super_ops;
#ifdef CONFIG_ROMFS_ON_MTD
diff --git a/fs/squashfs/super.c b/fs/squashfs/super.c
index effa638d6d85..a9e9837617a9 100644
--- a/fs/squashfs/super.c
+++ b/fs/squashfs/super.c
@@ -183,6 +183,8 @@ static int squashfs_fill_super(struct super_block *sb, void *data, int silent)
(u64) le64_to_cpu(sblk->id_table_start));
sb->s_maxbytes = MAX_LFS_FILESIZE;
+ sb->s_time_min = 0;
+ sb->s_time_max = U32_MAX;
sb->s_flags |= SB_RDONLY;
sb->s_op = &squashfs_super_ops;
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index 4ed0dca52ec8..1da0be667409 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -843,6 +843,10 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
sb->s_maxbytes = MAX_LFS_FILESIZE;
+ sb->s_time_gran = NSEC_PER_SEC;
+ sb->s_time_min = S32_MIN;
+ sb->s_time_max = S32_MAX;
+
switch (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) {
case UFS_MOUNT_UFSTYPE_44BSD:
UFSD("ufstype=44bsd\n");
@@ -861,6 +865,9 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
uspi->s_fshift = 9;
uspi->s_sbsize = super_block_size = 1536;
uspi->s_sbbase = 0;
+ sb->s_time_gran = 1;
+ sb->s_time_min = S64_MIN;
+ sb->s_time_max = S64_MAX;
flags |= UFS_TYPE_UFS2 | UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD;
break;
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index a14d11d78bd8..1a0daf46bae8 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1685,6 +1685,8 @@ xfs_fs_fill_super(
sb->s_maxbytes = xfs_max_file_offset(sb->s_blocksize_bits);
sb->s_max_links = XFS_MAXLINK;
sb->s_time_gran = 1;
+ sb->s_time_min = S32_MIN;
+ sb->s_time_max = S32_MAX;
set_posix_acl_flag(sb);
/* version 5 superblocks support inode version counters. */
--
2.17.1
next prev parent reply other threads:[~2019-07-30 1:51 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 ` Deepa Dinamani [this message]
2019-07-31 15:28 ` [PATCH 06/20] fs: Fill in max and min timestamps in superblock 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 ` [PATCH 20/20] isofs: Initialize filesystem timestamp ranges Deepa Dinamani
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