[PATCH v9 10/28] xfs: Add attr context to log item

[Allison Henderson <allison.henderson@oracle.com>]

This patch modifies xfs_attr_item to store a xfs_da_args, a xfs_buf pointer
and a new state type. We will use these in the next patch when
we modify xfs_set_attr_args to roll transactions by returning EAGAIN.
Because the subroutines of this function modify the contents of these
structures, we need to find a place to store them where they remain
instantiated across multiple calls to xfs_set_attr_args.

Signed-off-by: Allison Henderson <allison.henderson@oracle.com>
---
 fs/xfs/libxfs/xfs_attr.h | 17 ++++++++++++++++-
 fs/xfs/scrub/common.c    |  2 ++
 fs/xfs/xfs_acl.c         |  2 ++
 fs/xfs/xfs_attr_item.c   |  2 +-
 fs/xfs/xfs_ioctl.c       |  2 ++
 fs/xfs/xfs_ioctl32.c     |  2 ++
 fs/xfs/xfs_iops.c        |  1 +
 fs/xfs/xfs_xattr.c       |  1 +
 8 files changed, 27 insertions(+), 2 deletions(-)

diff --git a/fs/xfs/libxfs/xfs_attr.h b/fs/xfs/libxfs/xfs_attr.h
index b85c9c7..38334e0 100644
--- a/fs/xfs/libxfs/xfs_attr.h
+++ b/fs/xfs/libxfs/xfs_attr.h
@@ -77,6 +77,12 @@ typedef struct attrlist_ent {	/* data from attr_list() */
 	char	a_name[1];	/* attr name (NULL terminated) */
 } attrlist_ent_t;
 
+/* Attr state machine types */
+typedef enum {
+	XFS_ATTR_STATE1 = 1,
+	XFS_ATTR_STATE2 = 2,
+} xfs_attr_state_t;
+
 /*
  * List of attrs to commit later.
  */
@@ -88,7 +94,16 @@ struct xfs_attr_item {
 	void*		  xattri_name;	      /* attr name */
 	uint32_t	  xattri_name_len;    /* length of name */
 	uint32_t	  xattri_flags;       /* attr flags */
-	struct list_head  xattri_list;
+
+	/*
+	 * Delayed attr parameters that need to remain instantiated
+	 * across transaction rolls during the defer finish
+	 */
+	struct xfs_buf		*xattri_leaf_bp;  /* Leaf buf to release */
+	xfs_attr_state_t	xattri_state;	  /* state machine marker */
+	struct xfs_da_args	xattri_args;	  /* args context */
+
+	struct list_head	xattri_list;
 
 	/*
 	 * A byte array follows the header containing the file name and
diff --git a/fs/xfs/scrub/common.c b/fs/xfs/scrub/common.c
index 346b02a..5d07411 100644
--- a/fs/xfs/scrub/common.c
+++ b/fs/xfs/scrub/common.c
@@ -30,6 +30,8 @@
 #include "xfs_rmap_btree.h"
 #include "xfs_log.h"
 #include "xfs_trans_priv.h"
+#include "xfs_da_format.h"
+#include "xfs_da_btree.h"
 #include "xfs_attr.h"
 #include "xfs_reflink.h"
 #include "scrub/xfs_scrub.h"
diff --git a/fs/xfs/xfs_acl.c b/fs/xfs/xfs_acl.c
index 8039e35..48166df 100644
--- a/fs/xfs/xfs_acl.c
+++ b/fs/xfs/xfs_acl.c
@@ -10,6 +10,8 @@
 #include "xfs_mount.h"
 #include "xfs_inode.h"
 #include "xfs_acl.h"
+#include "xfs_da_format.h"
+#include "xfs_da_btree.h"
 #include "xfs_attr.h"
 #include "xfs_trace.h"
 #include <linux/slab.h>
diff --git a/fs/xfs/xfs_attr_item.c b/fs/xfs/xfs_attr_item.c
index dc09b52..56fc0b0 100644
--- a/fs/xfs/xfs_attr_item.c
+++ b/fs/xfs/xfs_attr_item.c
@@ -30,10 +30,10 @@
 #include "xfs_rmap.h"
 #include "xfs_inode.h"
 #include "xfs_icache.h"
-#include "xfs_attr.h"
 #include "xfs_shared.h"
 #include "xfs_da_format.h"
 #include "xfs_da_btree.h"
+#include "xfs_attr.h"
 
 static inline struct xfs_attri_log_item *ATTRI_ITEM(struct xfs_log_item *lip)
 {
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 0ef5ece..6cd9218 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -16,6 +16,8 @@
 #include "xfs_rtalloc.h"
 #include "xfs_itable.h"
 #include "xfs_error.h"
+#include "xfs_da_format.h"
+#include "xfs_da_btree.h"
 #include "xfs_attr.h"
 #include "xfs_bmap.h"
 #include "xfs_bmap_util.h"
diff --git a/fs/xfs/xfs_ioctl32.c b/fs/xfs/xfs_ioctl32.c
index fba115f..42889fc 100644
--- a/fs/xfs/xfs_ioctl32.c
+++ b/fs/xfs/xfs_ioctl32.c
@@ -21,6 +21,8 @@
 #include "xfs_fsops.h"
 #include "xfs_alloc.h"
 #include "xfs_rtalloc.h"
+#include "xfs_da_format.h"
+#include "xfs_da_btree.h"
 #include "xfs_attr.h"
 #include "xfs_ioctl.h"
 #include "xfs_ioctl32.h"
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index c3e74f9..638020b 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -17,6 +17,7 @@
 #include "xfs_acl.h"
 #include "xfs_quota.h"
 #include "xfs_error.h"
+#include "xfs_da_btree.h"
 #include "xfs_attr.h"
 #include "xfs_trans.h"
 #include "xfs_trace.h"
diff --git a/fs/xfs/xfs_xattr.c b/fs/xfs/xfs_xattr.c
index 63ee1d5..031f720 100644
--- a/fs/xfs/xfs_xattr.c
+++ b/fs/xfs/xfs_xattr.c
@@ -11,6 +11,7 @@
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
 #include "xfs_inode.h"
+#include "xfs_da_btree.h"
 #include "xfs_attr.h"
 #include "xfs_attr_leaf.h"
 #include "xfs_acl.h"
-- 
2.7.4