linux-kernel - [RFC 11/32] xfs: convert to struct inode

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Date:	Fri, 30 May 2014 22:01:35 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	linux-kernel@...r.kernel.org
Cc:	linux-arch@...r.kernel.org, joseph@...esourcery.com,
	john.stultz@...aro.org, hch@...radead.org, tglx@...utronix.de,
	geert@...ux-m68k.org, lftan@...era.com, hpa@...or.com,
	linux-fsdevel@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
	Dave Chinner <david@...morbit.com>, xfs@....sgi.com
Subject: [RFC 11/32] xfs: convert to struct inode_time

xfs uses unsigned 32-bit seconds for inode timestamps, which will work
for the next 92 years, but the VFS uses struct timespec for timestamps,
which is only good until 2038 on 32-bit CPUs.

This gets us one small step closer to lifting the VFS limit by using
struct inode_time in XFS.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
Cc: Dave Chinner <david@...morbit.com>
Cc: xfs@....sgi.com
---
 fs/xfs/time.h            | 4 ++--
 fs/xfs/xfs_inode.c       | 2 +-
 fs/xfs/xfs_iops.c        | 2 +-
 fs/xfs/xfs_trans_inode.c | 6 +++---
 4 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/fs/xfs/time.h b/fs/xfs/time.h
index 387e695..a490f1b 100644
--- a/fs/xfs/time.h
+++ b/fs/xfs/time.h
@@ -21,14 +21,14 @@
 #include <linux/sched.h>
 #include <linux/time.h>
 
-typedef struct timespec timespec_t;
+typedef struct inode_time timespec_t;
 
 static inline void delay(long ticks)
 {
 	schedule_timeout_uninterruptible(ticks);
 }
 
-static inline void nanotime(struct timespec *tvp)
+static inline void nanotime(struct inode_time *tvp)
 {
 	*tvp = CURRENT_TIME;
 }
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index a6115fe..16d5392 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -654,7 +654,7 @@ xfs_ialloc(
 	xfs_inode_t	*ip;
 	uint		flags;
 	int		error;
-	timespec_t	tv;
+	struct inode_time tv;
 
 	/*
 	 * Call the space management code to pick
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index 205613a..092ee7c 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -956,7 +956,7 @@ xfs_vn_setattr(
 STATIC int
 xfs_vn_update_time(
 	struct inode		*inode,
-	struct timespec		*now,
+	struct inode_time	*now,
 	int			flags)
 {
 	struct xfs_inode	*ip = XFS_I(inode);
diff --git a/fs/xfs/xfs_trans_inode.c b/fs/xfs/xfs_trans_inode.c
index 50c3f56..bae2520 100644
--- a/fs/xfs/xfs_trans_inode.c
+++ b/fs/xfs/xfs_trans_inode.c
@@ -70,7 +70,7 @@ xfs_trans_ichgtime(
 	int			flags)
 {
 	struct inode		*inode = VFS_I(ip);
-	timespec_t		tv;
+	struct inode_time	tv;
 
 	ASSERT(tp);
 	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
@@ -78,13 +78,13 @@ xfs_trans_ichgtime(
 	tv = current_fs_time(inode->i_sb);
 
 	if ((flags & XFS_ICHGTIME_MOD) &&
-	    !timespec_equal(&inode->i_mtime, &tv)) {
+	    !inode_time_equal(&inode->i_mtime, &tv)) {
 		inode->i_mtime = tv;
 		ip->i_d.di_mtime.t_sec = tv.tv_sec;
 		ip->i_d.di_mtime.t_nsec = tv.tv_nsec;
 	}
 	if ((flags & XFS_ICHGTIME_CHG) &&
-	    !timespec_equal(&inode->i_ctime, &tv)) {
+	    !inode_time_equal(&inode->i_ctime, &tv)) {
 		inode->i_ctime = tv;
 		ip->i_d.di_ctime.t_sec = tv.tv_sec;
 		ip->i_d.di_ctime.t_nsec = tv.tv_nsec;
-- 
1.8.3.2

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