Source kernel commit: 6d9d518192a3f633fce0821601847966280857f7
This patch adds a helper function xfs_attr_leaf_addname. While this
does help to break down xfs_attr_set_iter, it does also hoist out some
of the state management. This patch has been moved to the end of the
clean up series for further discussion.
Suggested-by: Darrick J. Wong <djwong@xxxxxxxxxx>
Signed-off-by: Allison Henderson <allison.henderson@xxxxxxxxxx>
Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
include/xfs_trace.h | 1 +
libxfs/xfs_attr.c | 108 +++++++++++++++++++++++++++++-----------------------
2 files changed, 61 insertions(+), 48 deletions(-)
diff --git a/include/xfs_trace.h b/include/xfs_trace.h
index 2169c27..4557ddd 100644
--- a/include/xfs_trace.h
+++ b/include/xfs_trace.h
@@ -314,6 +314,7 @@
#define trace_xfs_attr_sf_addname_return(a,b) ((void) 0)
#define trace_xfs_attr_set_iter_return(a,b) ((void) 0)
+#define trace_xfs_attr_leaf_addname_return(a,b) ((void) 0)
#define trace_xfs_attr_node_addname_return(a,b) ((void) 0)
#define trace_xfs_attr_remove_iter_return(a,b) ((void) 0)
#define trace_xfs_attr_rmtval_remove_return(a,b) ((void) 0)
diff --git a/libxfs/xfs_attr.c b/libxfs/xfs_attr.c
index f5d4380..c84997e 100644
--- a/libxfs/xfs_attr.c
+++ b/libxfs/xfs_attr.c
@@ -282,6 +282,65 @@ xfs_attr_sf_addname(
return -EAGAIN;
}
+STATIC int
+xfs_attr_leaf_addname(
+ struct xfs_attr_item *attr)
+{
+ struct xfs_da_args *args = attr->xattri_da_args;
+ struct xfs_buf *leaf_bp = attr->xattri_leaf_bp;
+ struct xfs_inode *dp = args->dp;
+ int error;
+
+ if (xfs_attr_is_leaf(dp)) {
+ error = xfs_attr_leaf_try_add(args, leaf_bp);
+ if (error == -ENOSPC) {
+ error = xfs_attr3_leaf_to_node(args);
+ if (error)
+ return error;
+
+ /*
+ * Finish any deferred work items and roll the
+ * transaction once more. The goal here is to call
+ * node_addname with the inode and transaction in the
+ * same state (inode locked and joined, transaction
+ * clean) no matter how we got to this step.
+ *
+ * At this point, we are still in XFS_DAS_UNINIT, but
+ * when we come back, we'll be a node, so we'll fall
+ * down into the node handling code below
+ */
+ trace_xfs_attr_set_iter_return(
+ attr->xattri_dela_state, args->dp);
+ return -EAGAIN;
+ }
+
+ if (error)
+ return error;
+
+ attr->xattri_dela_state = XFS_DAS_FOUND_LBLK;
+ } else {
+ error = xfs_attr_node_addname_find_attr(attr);
+ if (error)
+ return error;
+
+ error = xfs_attr_node_addname(attr);
+ if (error)
+ return error;
+
+ /*
+ * If addname was successful, and we dont need to alloc or
+ * remove anymore blks, we're done.
+ */
+ if (!args->rmtblkno && !args->rmtblkno2)
+ return 0;
+
+ attr->xattri_dela_state = XFS_DAS_FOUND_NBLK;
+ }
+
+ trace_xfs_attr_leaf_addname_return(attr->xattri_dela_state, args->dp);
+ return -EAGAIN;
+}
+
/*
* Set the attribute specified in @args.
* This routine is meant to function as a delayed operation, and may return
@@ -317,55 +376,8 @@ xfs_attr_set_iter(
*leaf_bp = NULL;
}
- if (xfs_attr_is_leaf(dp)) {
- error = xfs_attr_leaf_try_add(args, *leaf_bp);
- if (error == -ENOSPC) {
- error = xfs_attr3_leaf_to_node(args);
- if (error)
- return error;
-
- /*
- * Finish any deferred work items and roll the
- * transaction once more. The goal here is to
- * call node_addname with the inode and
- * transaction in the same state (inode locked
- * and joined, transaction clean) no matter how
- * we got to this step.
- *
- * At this point, we are still in
- * XFS_DAS_UNINIT, but when we come back, we'll
- * be a node, so we'll fall down into the node
- * handling code below
- */
- trace_xfs_attr_set_iter_return(
- attr->xattri_dela_state, args->dp);
- return -EAGAIN;
- } else if (error) {
- return error;
- }
-
- attr->xattri_dela_state = XFS_DAS_FOUND_LBLK;
- } else {
- error = xfs_attr_node_addname_find_attr(attr);
- if (error)
- return error;
+ return xfs_attr_leaf_addname(attr);
- error = xfs_attr_node_addname(attr);
- if (error)
- return error;
-
- /*
- * If addname was successful, and we dont need to alloc
- * or remove anymore blks, we're done.
- */
- if (!args->rmtblkno && !args->rmtblkno2)
- return 0;
-
- attr->xattri_dela_state = XFS_DAS_FOUND_NBLK;
- }
- trace_xfs_attr_set_iter_return(attr->xattri_dela_state,
- args->dp);
- return -EAGAIN;
case XFS_DAS_FOUND_LBLK:
/*
* If there was an out-of-line value, allocate the blocks we
--
2.7.4
