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From: Christoph Hellwig <hch@lst.de>
To: linux-xfs@vger.kernel.org
Subject: [PATCH 12/18] xfs: move the di_flushiter field to struct xfs_inode
Date: Wed, 24 Mar 2021 15:21:23 +0100
Message-ID: <20210324142129.1011766-13-hch@lst.de> (raw)
In-Reply-To: <20210324142129.1011766-1-hch@lst.de>

In preparation of removing the historic icinode struct, move the
flushiter field into the containing xfs_inode structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 fs/xfs/libxfs/xfs_inode_buf.c |  4 ++--
 fs/xfs/libxfs/xfs_inode_buf.h |  1 -
 fs/xfs/xfs_icache.c           |  2 +-
 fs/xfs/xfs_inode.c            | 19 +++++++++----------
 fs/xfs/xfs_inode.h            |  1 +
 fs/xfs/xfs_inode_item.c       |  2 +-
 6 files changed, 14 insertions(+), 15 deletions(-)

diff --git a/fs/xfs/libxfs/xfs_inode_buf.c b/fs/xfs/libxfs/xfs_inode_buf.c
index 9f208d2c8ddb4d..d090274fb8a152 100644
--- a/fs/xfs/libxfs/xfs_inode_buf.c
+++ b/fs/xfs/libxfs/xfs_inode_buf.c
@@ -193,7 +193,7 @@ xfs_inode_from_disk(
 	 * inode. If the inode is unused, mode is zero and we shouldn't mess
 	 * with the uninitialized part of it.
 	 */
-	to->di_flushiter = be16_to_cpu(from->di_flushiter);
+	ip->i_flushiter = be16_to_cpu(from->di_flushiter);
 	inode->i_generation = be32_to_cpu(from->di_gen);
 	inode->i_mode = be16_to_cpu(from->di_mode);
 	if (!inode->i_mode)
@@ -327,7 +327,7 @@ xfs_inode_to_disk(
 		to->di_flushiter = 0;
 	} else {
 		to->di_version = 2;
-		to->di_flushiter = cpu_to_be16(from->di_flushiter);
+		to->di_flushiter = cpu_to_be16(ip->i_flushiter);
 	}
 }
 
diff --git a/fs/xfs/libxfs/xfs_inode_buf.h b/fs/xfs/libxfs/xfs_inode_buf.h
index 77d250dbe96848..e41a11bef04436 100644
--- a/fs/xfs/libxfs/xfs_inode_buf.h
+++ b/fs/xfs/libxfs/xfs_inode_buf.h
@@ -16,7 +16,6 @@ struct xfs_dinode;
  * format specific structures at the appropriate time.
  */
 struct xfs_icdinode {
-	uint16_t	di_flushiter;	/* incremented on flush */
 	uint8_t		di_forkoff;	/* attr fork offs, <<3 for 64b align */
 	uint16_t	di_flags;	/* random flags, XFS_DIFLAG_... */
 
diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c
index d7952d5955ede5..5c68e3069a8783 100644
--- a/fs/xfs/xfs_icache.c
+++ b/fs/xfs/xfs_icache.c
@@ -499,7 +499,7 @@ xfs_iget_cache_miss(
 	 * simply build the new inode core with a random generation number.
 	 *
 	 * For version 4 (and older) superblocks, log recovery is dependent on
-	 * the di_flushiter field being initialised from the current on-disk
+	 * the i_flushiter field being initialised from the current on-disk
 	 * value and hence we must also read the inode off disk even when
 	 * initializing new inodes.
 	 */
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index b8f38423f8c451..e951ea48b3a276 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -3430,16 +3430,15 @@ xfs_iflush(
 	}
 
 	/*
-	 * Inode item log recovery for v2 inodes are dependent on the
-	 * di_flushiter count for correct sequencing. We bump the flush
-	 * iteration count so we can detect flushes which postdate a log record
-	 * during recovery. This is redundant as we now log every change and
-	 * hence this can't happen but we need to still do it to ensure
-	 * backwards compatibility with old kernels that predate logging all
-	 * inode changes.
+	 * Inode item log recovery for v2 inodes are dependent on the flushiter
+	 * count for correct sequencing.  We bump the flush iteration count so
+	 * we can detect flushes which postdate a log record during recovery.
+	 * This is redundant as we now log every change and hence this can't
+	 * happen but we need to still do it to ensure backwards compatibility
+	 * with old kernels that predate logging all inode changes.
 	 */
 	if (!xfs_sb_version_has_v3inode(&mp->m_sb))
-		ip->i_d.di_flushiter++;
+		ip->i_flushiter++;
 
 	/*
 	 * If there are inline format data / attr forks attached to this inode,
@@ -3460,8 +3459,8 @@ xfs_iflush(
 	xfs_inode_to_disk(ip, dip, iip->ili_item.li_lsn);
 
 	/* Wrap, we never let the log put out DI_MAX_FLUSH */
-	if (ip->i_d.di_flushiter == DI_MAX_FLUSH)
-		ip->i_d.di_flushiter = 0;
+	if (ip->i_flushiter == DI_MAX_FLUSH)
+		ip->i_flushiter = 0;
 
 	xfs_iflush_fork(ip, dip, iip, XFS_DATA_FORK);
 	if (XFS_IFORK_Q(ip))
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index 36eb33d9bcbdcc..6246ee8a4359ab 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -59,6 +59,7 @@ typedef struct xfs_inode {
 	uint32_t		i_projid;	/* owner's project id */
 	xfs_extlen_t		i_extsize;	/* basic/minimum extent size */
 	xfs_extlen_t		i_cowextsize;	/* basic cow extent size */
+	uint16_t		i_flushiter;	/* incremented on flush */
 
 	struct xfs_icdinode	i_d;		/* most of ondisk inode */
 
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
index 44902fd513eb0b..091436857ee74b 100644
--- a/fs/xfs/xfs_inode_item.c
+++ b/fs/xfs/xfs_inode_item.c
@@ -396,7 +396,7 @@ xfs_inode_to_log_dinode(
 		to->di_flushiter = 0;
 	} else {
 		to->di_version = 2;
-		to->di_flushiter = from->di_flushiter;
+		to->di_flushiter = ip->i_flushiter;
 	}
 }
 
-- 
2.30.1


  parent reply index

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-24 14:21 xfs inode structure cleanups v3 Christoph Hellwig
2021-03-24 14:21 ` [PATCH 01/18] xfs: split xfs_imap_to_bp Christoph Hellwig
2021-03-24 18:07   ` Darrick J. Wong
2021-03-24 14:21 ` [PATCH 02/18] xfs: consistently initialize di_flags2 Christoph Hellwig
2021-03-24 18:08   ` Darrick J. Wong
2021-03-24 14:21 ` [PATCH 03/18] xfs: handle crtime more carefully in xfs_bulkstat_one_int Christoph Hellwig
2021-03-24 18:09   ` Darrick J. Wong
2021-03-24 14:21 ` [PATCH 04/18] xfs: remove the unused xfs_icdinode_has_bigtime helper Christoph Hellwig
2021-03-24 18:10   ` Darrick J. Wong
2021-03-24 14:21 ` [PATCH 05/18] xfs: remove the di_dmevmask and di_dmstate fields from struct xfs_icdinode Christoph Hellwig
2021-03-24 18:17   ` Darrick J. Wong
2021-03-24 18:20     ` Christoph Hellwig
2021-03-25 14:29       ` Anthony Iliopoulos
2021-03-24 14:21 ` [PATCH 06/18] xfs: don't clear the "dinode core" in xfs_inode_alloc Christoph Hellwig
2021-03-24 18:27   ` Darrick J. Wong
2021-03-24 18:28     ` Christoph Hellwig
2021-03-24 18:40       ` Darrick J. Wong
2021-03-24 14:21 ` [PATCH 07/18] xfs: move the di_projid field to struct xfs_inode Christoph Hellwig
2021-03-24 18:20   ` Darrick J. Wong
2021-03-25  8:39     ` Christoph Hellwig
2021-03-24 14:21 ` [PATCH 08/18] xfs: move the di_size " Christoph Hellwig
2021-03-24 18:21   ` Darrick J. Wong
2021-03-24 14:21 ` [PATCH 09/18] xfs: move the di_nblocks " Christoph Hellwig
2021-03-24 18:22   ` Darrick J. Wong
2021-03-25  8:39     ` Christoph Hellwig
2021-03-26  0:25       ` Darrick J. Wong
2021-03-24 14:21 ` [PATCH 10/18] xfs: move the di_extsize " Christoph Hellwig
2021-03-24 18:29   ` Darrick J. Wong
2021-03-24 14:21 ` [PATCH 11/18] xfs: move the di_cowextsize " Christoph Hellwig
2021-03-24 18:31   ` Darrick J. Wong
2021-03-24 18:33     ` Darrick J. Wong
2021-03-24 18:42       ` Darrick J. Wong
2021-03-25  8:41         ` Christoph Hellwig
2021-03-24 14:21 ` Christoph Hellwig [this message]
2021-03-24 18:32   ` [PATCH 12/18] xfs: move the di_flushiter " Darrick J. Wong
2021-03-24 14:21 ` [PATCH 13/18] xfs: use a union for i_cowextsize and i_flushiter Christoph Hellwig
2021-03-24 18:33   ` Darrick J. Wong
2021-03-25  3:06   ` Darrick J. Wong
2021-03-25  9:01     ` Christoph Hellwig
2021-03-24 14:21 ` [PATCH 14/18] xfs: cleanup xfs_fill_fsxattr Christoph Hellwig
2021-03-24 18:34   ` Darrick J. Wong
2021-03-24 14:21 ` [PATCH 15/18] xfs: move the di_forkoff field to struct xfs_inode Christoph Hellwig
2021-03-24 18:35   ` Darrick J. Wong
2021-03-24 14:21 ` [PATCH 16/18] xfs: move the di_flags " Christoph Hellwig
2021-03-24 18:36   ` Darrick J. Wong
2021-03-24 14:21 ` [PATCH 17/18] xfs: move the di_flags2 " Christoph Hellwig
2021-03-24 18:37   ` Darrick J. Wong
2021-03-24 14:21 ` [PATCH 18/18] xfs: move the di_crtime " Christoph Hellwig
2021-03-24 18:38   ` Darrick J. Wong

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