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xfs: fold dfops into the transaction

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struct xfs_defer_ops has now been reduced to a single list_head. The
external dfops mechanism is unused and thus everywhere a (permanent)
transaction is accessible the associated dfops structure is as well.

Remove the xfs_defer_ops structure and fold the list_head into the
transaction. Also remove the last remnant of external dfops in
xfs_trans_dup().

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Brian Foster
2018-08-01 07:20:35 -07:00
committed by Darrick J. Wong
parent c03edc9e49
commit 9d9e623385
12 changed files with 46 additions and 96 deletions
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8
fs/xfs/xfs_trans.h
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@@ -90,13 +90,10 @@ void xfs_log_item_init(struct xfs_mount *mp, struct xfs_log_item *item,
#define XFS_ITEM_FLUSHING 3
/*
* Deferred operations tracking structure.
* Deferred operation item relogging limits.
*/
#define XFS_DEFER_OPS_NR_INODES 2 /* join up to two inodes */
#define XFS_DEFER_OPS_NR_BUFS 2 /* join up to two buffers */
struct xfs_defer_ops {
struct list_head dop_intake; /* unlogged pending work */
};
/*
* This is the structure maintained for every active transaction.
@@ -114,7 +111,6 @@ typedef struct xfs_trans {
struct xlog_ticket *t_ticket; /* log mgr ticket */
struct xfs_mount *t_mountp; /* ptr to fs mount struct */
struct xfs_dquot_acct *t_dqinfo; /* acctg info for dquots */
struct xfs_defer_ops *t_dfops; /* dfops reference */
int64_t t_icount_delta; /* superblock icount change */
int64_t t_ifree_delta; /* superblock ifree change */
int64_t t_fdblocks_delta; /* superblock fdblocks chg */
@@ -136,8 +132,8 @@ typedef struct xfs_trans {
int64_t t_rextslog_delta;/* superblocks rextslog chg */
struct list_head t_items; /* log item descriptors */
struct list_head t_busy; /* list of busy extents */
struct list_head t_dfops; /* deferred operations */
unsigned long t_pflags; /* saved process flags state */
struct xfs_defer_ops t_dfops_internal;
} xfs_trans_t;
/*