* [PATCH v3 00/24] Delete CURRENT_TIME_SEC and replace current_fs_time()
@ 2016-06-25 21:37 Deepa Dinamani
2016-06-25 21:37 ` [PATCH v3 19/24] fs: nfs: Make nfs boot time y2038 safe Deepa Dinamani
2016-06-29 19:48 ` [Y2038] [PATCH v3 00/24] Delete CURRENT_TIME_SEC and replace current_fs_time() Arnd Bergmann
0 siblings, 2 replies; 3+ messages in thread
From: Deepa Dinamani @ 2016-06-25 21:37 UTC (permalink / raw)
To: linux-fsdevel, linux-kernel
Cc: arnd, tglx, torvalds, tytso, viro, y2038, adilger.kernel,
adrian.hunter, anna.schumaker, ceph-devel, clm, cm224.lee,
dedekind1, dsterba, elder, eparis, gregkh, idryomov, jack,
jaegeuk, jbacik, jfs-discussion, jlbec, john.stultz, linux-audit,
linux-btrfs, linux-ext4, linux-f2fs-devel, linux-mtd, linux-nfs,
lustre-devel, mfasheh, ocfs2-devel, paul, sage, sfrench, shaggy,
trond.myklebust, zyan
The series is aimed at getting rid of CURRENT_TIME, CURRENT_TIME_SEC macros
and replacing current_fs_time() with current_time().
The macros are not y2038 safe. There is no plan to transition them into being
y2038 safe.
ktime_get_* api's can be used in their place. And, these are y2038 safe.
CURRENT_TIME will be deleted after 4.8 rc1 as there is a dependency function
time64_to_tm() for one of the CURRENT_TIME occurance.
Thanks to Arnd Bergmann for all the guidance and discussions.
Patches 3-5 were mostly generated using coccinelle.
All filesystem timestamps use current_fs_time() for right granularity as
mentioned in the respective commit texts of patches. This has a changed
signature, renamed to current_time() and moved to the fs/inode.c.
This series also serves as a preparatory series to transition vfs to 64 bit
timestamps as outlined here: https://lkml.org/lkml/2016/2/12/104 .
As per Linus's suggestion in https://lkml.org/lkml/2016/5/24/663 , all the
inode timestamp changes have been squashed into a single patch. Also,
current_time() now is used as a single generic vfs filesystem timestamp api.
It also takes struct inode* as argument instead of struct super_block*.
Posting all patches together in a bigger series so that the big picture is
clear.
As per the suggestion in https://lwn.net/Articles/672598/, CURRENT_TIME macro
bug fixes are being handled in a series separate from transitioning vfs to use.
Changes since v2:
* Fix buildbot error for uninitalized sb in inode.
* Minor fixes according to Arnd's comments.
* Leave out the fnic and deletion of CURRENT_TIME to be submitted after 4.8 rc1.
Deepa Dinamani (24):
vfs: Add current_time() api
fs: proc: Delete inode time initializations in proc_alloc_inode()
fs: Replace CURRENT_TIME with current_time() for inode timestamps
fs: Replace CURRENT_TIME_SEC with current_time() for inode timestamps
fs: Replace current_fs_time() with current_time()
fs: jfs: Replace CURRENT_TIME_SEC by current_time()
fs: ext4: Use current_time() for inode timestamps
fs: ubifs: Replace CURRENT_TIME_SEC with current_time
fs: btrfs: Use ktime_get_real_ts for root ctime
fs: udf: Replace CURRENT_TIME with current_time()
fs: cifs: Replace CURRENT_TIME by current_time()
fs: cifs: Replace CURRENT_TIME with ktime_get_real_ts()
fs: cifs: Replace CURRENT_TIME by get_seconds
fs: f2fs: Use ktime_get_real_seconds for sit_info times
drivers: staging: lustre: Replace CURRENT_TIME with current_time()
fs: ocfs2: Use time64_t to represent orphan scan times
fs: ocfs2: Replace CURRENT_TIME with ktime_get_real_seconds()
audit: Use timespec64 to represent audit timestamps
fs: nfs: Make nfs boot time y2038 safe
block: Replace CURRENT_TIME with ktime_get_real_ts
libceph: Replace CURRENT_TIME with ktime_get_real_ts
fs: ceph: Replace current_fs_time for request stamp
time: Delete current_fs_time() function
time: Delete CURRENT_TIME_SEC
arch/powerpc/platforms/cell/spufs/inode.c | 2 +-
arch/s390/hypfs/inode.c | 4 +--
drivers/block/rbd.c | 2 +-
drivers/char/sonypi.c | 2 +-
drivers/infiniband/hw/qib/qib_fs.c | 2 +-
drivers/misc/ibmasm/ibmasmfs.c | 2 +-
drivers/oprofile/oprofilefs.c | 2 +-
drivers/platform/x86/sony-laptop.c | 2 +-
drivers/staging/lustre/lustre/llite/llite_lib.c | 16 ++++++------
drivers/staging/lustre/lustre/llite/namei.c | 4 +--
drivers/staging/lustre/lustre/mdc/mdc_reint.c | 6 ++---
.../lustre/lustre/obdclass/linux/linux-obdo.c | 6 ++---
drivers/staging/lustre/lustre/obdclass/obdo.c | 6 ++---
drivers/staging/lustre/lustre/osc/osc_io.c | 2 +-
drivers/usb/core/devio.c | 18 +++++++-------
drivers/usb/gadget/function/f_fs.c | 8 +++---
drivers/usb/gadget/legacy/inode.c | 2 +-
fs/9p/vfs_inode.c | 2 +-
fs/adfs/inode.c | 2 +-
fs/affs/amigaffs.c | 6 ++---
fs/affs/inode.c | 2 +-
fs/attr.c | 2 +-
fs/autofs4/inode.c | 2 +-
fs/autofs4/root.c | 6 ++---
fs/bad_inode.c | 2 +-
fs/bfs/dir.c | 14 +++++------
fs/binfmt_misc.c | 2 +-
fs/btrfs/file.c | 6 ++---
fs/btrfs/inode.c | 22 ++++++++--------
fs/btrfs/ioctl.c | 8 +++---
fs/btrfs/root-tree.c | 3 ++-
fs/btrfs/transaction.c | 4 +--
fs/btrfs/xattr.c | 2 +-
fs/ceph/file.c | 4 +--
fs/ceph/inode.c | 2 +-
fs/ceph/mds_client.c | 4 ++-
fs/ceph/xattr.c | 2 +-
fs/cifs/cifsencrypt.c | 4 ++-
fs/cifs/cifssmb.c | 10 ++++----
fs/cifs/file.c | 4 +--
fs/cifs/inode.c | 28 +++++++++++----------
fs/coda/dir.c | 2 +-
fs/coda/file.c | 2 +-
fs/coda/inode.c | 2 +-
fs/configfs/inode.c | 6 ++---
fs/debugfs/inode.c | 2 +-
fs/devpts/inode.c | 6 ++---
fs/efivarfs/inode.c | 2 +-
fs/exofs/dir.c | 6 ++---
fs/exofs/inode.c | 4 +--
fs/exofs/namei.c | 6 ++---
fs/ext2/acl.c | 2 +-
fs/ext2/dir.c | 6 ++---
fs/ext2/ialloc.c | 2 +-
fs/ext2/inode.c | 4 +--
fs/ext2/ioctl.c | 4 +--
fs/ext2/namei.c | 6 ++---
fs/ext2/super.c | 2 +-
fs/ext2/xattr.c | 2 +-
fs/ext4/acl.c | 2 +-
fs/ext4/ext4.h | 6 -----
fs/ext4/extents.c | 10 ++++----
fs/ext4/ialloc.c | 2 +-
fs/ext4/inline.c | 4 +--
fs/ext4/inode.c | 6 ++---
fs/ext4/ioctl.c | 8 +++---
fs/ext4/namei.c | 24 ++++++++++--------
fs/ext4/super.c | 2 +-
fs/ext4/xattr.c | 2 +-
fs/f2fs/dir.c | 8 +++---
fs/f2fs/file.c | 8 +++---
fs/f2fs/inline.c | 2 +-
fs/f2fs/namei.c | 12 ++++-----
fs/f2fs/segment.c | 2 +-
fs/f2fs/segment.h | 5 ++--
fs/f2fs/xattr.c | 2 +-
fs/fat/dir.c | 2 +-
fs/fat/file.c | 6 ++---
fs/fat/inode.c | 2 +-
fs/fat/namei_msdos.c | 12 ++++-----
fs/fat/namei_vfat.c | 10 ++++----
fs/fuse/control.c | 2 +-
fs/fuse/dir.c | 2 +-
fs/gfs2/bmap.c | 8 +++---
fs/gfs2/dir.c | 12 ++++-----
fs/gfs2/inode.c | 8 +++---
fs/gfs2/quota.c | 2 +-
fs/gfs2/xattr.c | 8 +++---
fs/hfs/catalog.c | 8 +++---
fs/hfs/dir.c | 2 +-
fs/hfs/inode.c | 2 +-
fs/hfsplus/catalog.c | 8 +++---
fs/hfsplus/dir.c | 6 ++---
fs/hfsplus/inode.c | 2 +-
fs/hfsplus/ioctl.c | 2 +-
fs/hugetlbfs/inode.c | 10 ++++----
fs/inode.c | 29 +++++++++++++++++++---
fs/jffs2/acl.c | 2 +-
fs/jffs2/fs.c | 2 +-
fs/jfs/acl.c | 2 +-
fs/jfs/inode.c | 2 +-
fs/jfs/ioctl.c | 2 +-
fs/jfs/jfs_inode.c | 2 +-
fs/jfs/namei.c | 24 +++++++++---------
fs/jfs/super.c | 2 +-
fs/jfs/xattr.c | 2 +-
fs/kernfs/inode.c | 2 +-
fs/libfs.c | 14 +++++------
fs/locks.c | 2 +-
fs/logfs/dir.c | 6 ++---
fs/logfs/file.c | 2 +-
fs/logfs/inode.c | 4 +--
fs/logfs/readwrite.c | 4 +--
fs/minix/bitmap.c | 2 +-
fs/minix/dir.c | 6 ++---
fs/minix/itree_common.c | 4 +--
fs/minix/namei.c | 4 +--
fs/nfs/client.c | 2 +-
fs/nfs/netns.h | 2 +-
fs/nfs/nfs4proc.c | 10 +++++---
fs/nfs/nfs4xdr.c | 2 +-
fs/nfsd/blocklayout.c | 2 +-
fs/nilfs2/dir.c | 6 ++---
fs/nilfs2/inode.c | 4 +--
fs/nilfs2/ioctl.c | 2 +-
fs/nilfs2/namei.c | 6 ++---
fs/nsfs.c | 2 +-
fs/ntfs/inode.c | 2 +-
fs/ntfs/mft.c | 2 +-
fs/ocfs2/acl.c | 2 +-
fs/ocfs2/alloc.c | 2 +-
fs/ocfs2/aops.c | 2 +-
fs/ocfs2/cluster/heartbeat.c | 2 +-
fs/ocfs2/dir.c | 4 +--
fs/ocfs2/dlmfs/dlmfs.c | 4 +--
fs/ocfs2/file.c | 12 ++++-----
fs/ocfs2/inode.c | 2 +-
fs/ocfs2/journal.c | 4 +--
fs/ocfs2/move_extents.c | 2 +-
fs/ocfs2/namei.c | 16 ++++++------
fs/ocfs2/ocfs2.h | 2 +-
fs/ocfs2/refcounttree.c | 4 +--
fs/ocfs2/super.c | 2 +-
fs/ocfs2/xattr.c | 2 +-
fs/omfs/dir.c | 4 +--
fs/omfs/inode.c | 2 +-
fs/openpromfs/inode.c | 2 +-
fs/orangefs/file.c | 2 +-
fs/orangefs/inode.c | 2 +-
fs/orangefs/namei.c | 10 ++++----
fs/pipe.c | 2 +-
fs/posix_acl.c | 2 +-
fs/proc/base.c | 2 +-
fs/proc/inode.c | 3 +--
fs/proc/proc_sysctl.c | 2 +-
fs/proc/self.c | 2 +-
fs/proc/thread_self.c | 2 +-
fs/pstore/inode.c | 2 +-
fs/ramfs/inode.c | 6 ++---
fs/reiserfs/inode.c | 2 +-
fs/reiserfs/ioctl.c | 4 +--
fs/reiserfs/namei.c | 12 ++++-----
fs/reiserfs/stree.c | 8 +++---
fs/reiserfs/super.c | 2 +-
fs/reiserfs/xattr.c | 6 ++---
fs/reiserfs/xattr_acl.c | 2 +-
fs/sysv/dir.c | 6 ++---
fs/sysv/ialloc.c | 2 +-
fs/sysv/itree.c | 4 +--
fs/sysv/namei.c | 4 +--
fs/tracefs/inode.c | 2 +-
fs/ubifs/dir.c | 10 ++++----
fs/ubifs/file.c | 12 ++++-----
fs/ubifs/ioctl.c | 2 +-
fs/ubifs/misc.h | 10 --------
fs/ubifs/sb.c | 14 ++++++++---
fs/ubifs/xattr.c | 6 ++---
fs/udf/ialloc.c | 2 +-
fs/udf/inode.c | 4 +--
fs/udf/namei.c | 20 +++++++--------
fs/udf/super.c | 9 ++++---
fs/ufs/dir.c | 6 ++---
fs/ufs/ialloc.c | 8 +++---
fs/ufs/inode.c | 6 ++---
fs/ufs/namei.c | 6 ++---
fs/xfs/xfs_acl.c | 2 +-
fs/xfs/xfs_inode.c | 2 +-
fs/xfs/xfs_iops.c | 2 +-
fs/xfs/xfs_trans_inode.c | 2 +-
include/linux/audit.h | 4 +--
include/linux/fs.h | 2 +-
include/linux/time.h | 1 -
ipc/mqueue.c | 18 +++++++-------
kernel/audit.c | 10 ++++----
kernel/audit.h | 2 +-
kernel/auditsc.c | 6 ++---
kernel/bpf/inode.c | 2 +-
kernel/time/time.c | 14 -----------
mm/shmem.c | 20 +++++++--------
net/ceph/messenger.c | 6 +++--
net/ceph/osd_client.c | 4 +--
net/sunrpc/rpc_pipe.c | 2 +-
security/inode.c | 2 +-
security/selinux/selinuxfs.c | 2 +-
204 files changed, 536 insertions(+), 518 deletions(-)
--
1.9.1
Cc: adilger.kernel@dilger.ca
Cc: adrian.hunter@intel.com
Cc: anna.schumaker@netapp.com
Cc: ceph-devel@vger.kernel.org
Cc: clm@fb.com
Cc: cm224.lee@samsung.com
Cc: dedekind1@gmail.com
Cc: dsterba@suse.com
Cc: elder@kernel.org
Cc: eparis@redhat.com
Cc: gregkh@linuxfoundation.org
Cc: idryomov@gmail.com
Cc: jack@suse.com
Cc: jaegeuk@kernel.org
Cc: jbacik@fb.com
Cc: jfs-discussion@lists.sourceforge.net
Cc: jlbec@evilplan.org
Cc: john.stultz@linaro.org
Cc: linux-audit@redhat.com
Cc: linux-btrfs@vger.kernel.org
Cc: linux-ext4@vger.kernel.org
Cc: linux-f2fs-devel@lists.sourceforge.net
Cc: linux-mtd@lists.infradead.org
Cc: linux-nfs@vger.kernel.org
Cc: lustre-devel@lists.lustre.org
Cc: mfasheh@suse.com
Cc: ocfs2-devel@oss.oracle.com
Cc: paul@paul-moore.com
Cc: sage@redhat.com
Cc: sfrench@samba.org
Cc: shaggy@kernel.org
Cc: trond.myklebust@primarydata.com
Cc: zyan@redhat.com
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH v3 19/24] fs: nfs: Make nfs boot time y2038 safe
2016-06-25 21:37 [PATCH v3 00/24] Delete CURRENT_TIME_SEC and replace current_fs_time() Deepa Dinamani
@ 2016-06-25 21:37 ` Deepa Dinamani
2016-06-29 19:48 ` [Y2038] [PATCH v3 00/24] Delete CURRENT_TIME_SEC and replace current_fs_time() Arnd Bergmann
1 sibling, 0 replies; 3+ messages in thread
From: Deepa Dinamani @ 2016-06-25 21:37 UTC (permalink / raw)
To: linux-fsdevel, linux-kernel
Cc: arnd, tglx, torvalds, tytso, viro, y2038, Trond Myklebust,
Anna Schumaker, linux-nfs
boot_time is represented as a struct timespec.
struct timespec and CURRENT_TIME are not y2038 safe.
Overall, the plan is to use timespec64 and ktime_t for
all internal kernel representation of timestamps.
CURRENT_TIME will also be removed.
boot_time is used to construct the nfs client boot verifier.
Use ktime_t to represent boot_time and ktime_get_real() for
the boot_time value.
Following Trond's request https://lkml.org/lkml/2016/6/9/22 ,
use ktime_t instead of converting to struct timespec64.
Use higher and lower 32 bit parts of ktime_t for the boot
verifier.
Use the lower 32 bit part of ktime_t for the authsys_parms
stamp field.
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Cc: Trond Myklebust <trond.myklebust@primarydata.com>
Cc: Anna Schumaker <anna.schumaker@netapp.com>
Cc: linux-nfs@vger.kernel.org
---
fs/nfs/client.c | 2 +-
fs/nfs/netns.h | 2 +-
fs/nfs/nfs4proc.c | 10 ++++++----
fs/nfs/nfs4xdr.c | 2 +-
4 files changed, 9 insertions(+), 7 deletions(-)
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 4849d0f..92798bb 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -1078,7 +1078,7 @@ void nfs_clients_init(struct net *net)
idr_init(&nn->cb_ident_idr);
#endif
spin_lock_init(&nn->nfs_client_lock);
- nn->boot_time = CURRENT_TIME;
+ nn->boot_time = ktime_get_real();
}
#ifdef CONFIG_PROC_FS
diff --git a/fs/nfs/netns.h b/fs/nfs/netns.h
index f0e06e4..fbce0d8 100644
--- a/fs/nfs/netns.h
+++ b/fs/nfs/netns.h
@@ -29,7 +29,7 @@ struct nfs_net {
int cb_users[NFS4_MAX_MINOR_VERSION + 1];
#endif
spinlock_t nfs_client_lock;
- struct timespec boot_time;
+ ktime_t boot_time;
#ifdef CONFIG_PROC_FS
struct proc_dir_entry *proc_nfsfs;
#endif
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 406dd3e..8d9b5a9 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -5062,12 +5062,14 @@ static void nfs4_init_boot_verifier(const struct nfs_client *clp,
if (test_bit(NFS4CLNT_PURGE_STATE, &clp->cl_state)) {
/* An impossible timestamp guarantees this value
* will never match a generated boot time. */
- verf[0] = 0;
- verf[1] = cpu_to_be32(NSEC_PER_SEC + 1);
+ verf[0] = cpu_to_be32(U32_MAX);
+ verf[1] = cpu_to_be32(U32_MAX);
} else {
struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id);
- verf[0] = cpu_to_be32(nn->boot_time.tv_sec);
- verf[1] = cpu_to_be32(nn->boot_time.tv_nsec);
+ u64 ns = ktime_to_ns(nn->boot_time);
+
+ verf[0] = cpu_to_be32(ns >> 32);
+ verf[1] = cpu_to_be32(ns);
}
memcpy(bootverf->data, verf, sizeof(bootverf->data));
}
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 661e753..5944be0 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -1850,7 +1850,7 @@ static void encode_create_session(struct xdr_stream *xdr,
*p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */
/* authsys_parms rfc1831 */
- *p++ = cpu_to_be32(nn->boot_time.tv_nsec); /* stamp */
+ *p++ = cpu_to_be32(ktime_to_ns(nn->boot_time)); /* stamp */
p = xdr_encode_array(p, clnt->cl_nodename, clnt->cl_nodelen);
*p++ = cpu_to_be32(0); /* UID */
*p++ = cpu_to_be32(0); /* GID */
--
1.9.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [Y2038] [PATCH v3 00/24] Delete CURRENT_TIME_SEC and replace current_fs_time()
2016-06-25 21:37 [PATCH v3 00/24] Delete CURRENT_TIME_SEC and replace current_fs_time() Deepa Dinamani
2016-06-25 21:37 ` [PATCH v3 19/24] fs: nfs: Make nfs boot time y2038 safe Deepa Dinamani
@ 2016-06-29 19:48 ` Arnd Bergmann
1 sibling, 0 replies; 3+ messages in thread
From: Arnd Bergmann @ 2016-06-29 19:48 UTC (permalink / raw)
To: y2038
Cc: Deepa Dinamani, linux-fsdevel, linux-kernel, shaggy,
jfs-discussion, trond.myklebust, clm, adilger.kernel, tglx, zyan,
paul, sage, idryomov, linux-ext4, cm224.lee, mfasheh, john.stultz,
viro, dsterba, jaegeuk, ceph-devel, linux-nfs, elder, tytso,
dedekind1, jbacik, gregkh, adrian.hunter, eparis,
linux-f2fs-devel, sfrench, linux-audit, ocfs2-devel, jack,
linux-mtd, lustre-devel, torvalds, anna.schumaker, linux-btrfs,
jlbec
On Saturday, June 25, 2016 2:37:24 PM CEST Deepa Dinamani wrote:
> The series is aimed at getting rid of CURRENT_TIME, CURRENT_TIME_SEC macros
> and replacing current_fs_time() with current_time().
> The macros are not y2038 safe. There is no plan to transition them into being
> y2038 safe.
> ktime_get_* api's can be used in their place. And, these are y2038 safe.
>
> CURRENT_TIME will be deleted after 4.8 rc1 as there is a dependency function
> time64_to_tm() for one of the CURRENT_TIME occurance.
>
> Thanks to Arnd Bergmann for all the guidance and discussions.
>
> Patches 3-5 were mostly generated using coccinelle.
>
> All filesystem timestamps use current_fs_time() for right granularity as
> mentioned in the respective commit texts of patches. This has a changed
> signature, renamed to current_time() and moved to the fs/inode.c.
>
> This series also serves as a preparatory series to transition vfs to 64 bit
> timestamps as outlined here: https://lkml.org/lkml/2016/2/12/104 .
>
> As per Linus's suggestion in https://lkml.org/lkml/2016/5/24/663 , all the
> inode timestamp changes have been squashed into a single patch. Also,
> current_time() now is used as a single generic vfs filesystem timestamp api.
> It also takes struct inode* as argument instead of struct super_block*.
> Posting all patches together in a bigger series so that the big picture is
> clear.
>
> As per the suggestion in https://lwn.net/Articles/672598/, CURRENT_TIME macro
> bug fixes are being handled in a series separate from transitioning vfs to use.
>
Everything in this version looks good to me. Please add
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
and send a pull request to Al Viro, based on the latest linux-4.7-rc release.
Arnd
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2016-06-29 19:47 UTC | newest]
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2016-06-25 21:37 [PATCH v3 00/24] Delete CURRENT_TIME_SEC and replace current_fs_time() Deepa Dinamani
2016-06-25 21:37 ` [PATCH v3 19/24] fs: nfs: Make nfs boot time y2038 safe Deepa Dinamani
2016-06-29 19:48 ` [Y2038] [PATCH v3 00/24] Delete CURRENT_TIME_SEC and replace current_fs_time() Arnd Bergmann
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