From: Dave Chinner <dchinner@xxxxxxxxxx>
xfs_attri_remove_iter is not used anymore, so remove it and all the
infrastructure it uses and is needed to drive it.
Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
---
fs/xfs/libxfs/xfs_attr.c | 210 ++++-----------------------------------
1 file changed, 18 insertions(+), 192 deletions(-)
diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c
index ccc72c0c3cf5..34c31077b08f 100644
--- a/fs/xfs/libxfs/xfs_attr.c
+++ b/fs/xfs/libxfs/xfs_attr.c
@@ -1340,6 +1340,24 @@ xfs_attr_node_try_addname(
return error;
}
+static int
+xfs_attr_node_removename(
+ struct xfs_da_args *args,
+ struct xfs_da_state *state)
+{
+ struct xfs_da_state_blk *blk;
+ int retval;
+
+ /*
+ * Remove the name and update the hashvals in the tree.
+ */
+ blk = &state->path.blk[state->path.active-1];
+ ASSERT(blk->magic == XFS_ATTR_LEAF_MAGIC);
+ retval = xfs_attr3_leaf_remove(blk->bp, args);
+ xfs_da3_fixhashpath(state, &state->path);
+
+ return retval;
+}
static int
xfs_attr_node_remove_attr(
@@ -1382,198 +1400,6 @@ xfs_attr_node_remove_attr(
return retval;
}
-/*
- * Shrink an attribute from leaf to shortform
- */
-STATIC int
-xfs_attr_node_shrink(
- struct xfs_da_args *args,
- struct xfs_da_state *state)
-{
- struct xfs_inode *dp = args->dp;
- int error, forkoff;
- struct xfs_buf *bp;
-
- /*
- * Have to get rid of the copy of this dabuf in the state.
- */
- ASSERT(state->path.active == 1);
- ASSERT(state->path.blk[0].bp);
- state->path.blk[0].bp = NULL;
-
- error = xfs_attr3_leaf_read(args->trans, args->dp, 0, &bp);
- if (error)
- return error;
-
- forkoff = xfs_attr_shortform_allfit(bp, dp);
- if (forkoff) {
- error = xfs_attr3_leaf_to_shortform(bp, args, forkoff);
- /* bp is gone due to xfs_da_shrink_inode */
- } else
- xfs_trans_brelse(args->trans, bp);
-
- return error;
-}
-
-STATIC int
-xfs_attr_node_removename(
- struct xfs_da_args *args,
- struct xfs_da_state *state)
-{
- struct xfs_da_state_blk *blk;
- int retval;
-
- /*
- * Remove the name and update the hashvals in the tree.
- */
- blk = &state->path.blk[state->path.active-1];
- ASSERT(blk->magic == XFS_ATTR_LEAF_MAGIC);
- retval = xfs_attr3_leaf_remove(blk->bp, args);
- xfs_da3_fixhashpath(state, &state->path);
-
- return retval;
-}
-
-/*
- * Remove the attribute specified in @args.
- *
- * This will involve walking down the Btree, and may involve joining
- * leaf nodes and even joining intermediate nodes up to and including
- * the root node (a special case of an intermediate node).
- *
- * This routine is meant to function as either an in-line or delayed operation,
- * and may return -EAGAIN when the transaction needs to be rolled. Calling
- * functions will need to handle this, and call the function until a
- * successful error code is returned.
- */
-int
-xfs_attr_remove_iter(
- struct xfs_attr_item *attr)
-{
- struct xfs_da_args *args = attr->xattri_da_args;
- struct xfs_da_state *state = attr->xattri_da_state;
- int retval, error = 0;
- struct xfs_inode *dp = args->dp;
-
- trace_xfs_attr_node_removename(args);
-
- switch (attr->xattri_dela_state) {
- case XFS_DAS_UNINIT:
- if (!xfs_inode_hasattr(dp))
- return -ENOATTR;
-
- /*
- * Shortform or leaf formats don't require transaction rolls and
- * thus state transitions. Call the right helper and return.
- */
- if (dp->i_afp->if_format == XFS_DINODE_FMT_LOCAL)
- return xfs_attr_sf_removename(args);
-
- if (xfs_attr_is_leaf(dp))
- return xfs_attr_leaf_removename(args);
-
- /*
- * Node format may require transaction rolls. Set up the
- * state context and fall into the state machine.
- */
- if (!attr->xattri_da_state) {
- error = xfs_attr_node_removename_setup(attr);
- if (error)
- return error;
- state = attr->xattri_da_state;
- }
-
- fallthrough;
- case XFS_DAS_RMTBLK:
- attr->xattri_dela_state = XFS_DAS_RMTBLK;
-
- /*
- * If there is an out-of-line value, de-allocate the blocks.
- * This is done before we remove the attribute so that we don't
- * overflow the maximum size of a transaction and/or hit a
- * deadlock.
- */
- if (args->rmtblkno > 0) {
- /*
- * May return -EAGAIN. Roll and repeat until all remote
- * blocks are removed.
- */
- error = xfs_attr_rmtval_remove(attr);
- if (error == -EAGAIN) {
- trace_xfs_attr_remove_iter_return(
- attr->xattri_dela_state, args->dp);
- return error;
- } else if (error) {
- goto out;
- }
-
- /*
- * Refill the state structure with buffers (the prior
- * calls released our buffers) and close out this
- * transaction before proceeding.
- */
- ASSERT(args->rmtblkno == 0);
- error = xfs_attr_refillstate(state);
- if (error)
- goto out;
-
- attr->xattri_dela_state = XFS_DAS_RM_NAME;
- trace_xfs_attr_remove_iter_return(
- attr->xattri_dela_state, args->dp);
- return -EAGAIN;
- }
-
- fallthrough;
- case XFS_DAS_RM_NAME:
- /*
- * If we came here fresh from a transaction roll, reattach all
- * the buffers to the current transaction.
- */
- if (attr->xattri_dela_state == XFS_DAS_RM_NAME) {
- error = xfs_attr_refillstate(state);
- if (error)
- goto out;
- }
-
- retval = xfs_attr_node_removename(args, state);
-
- /*
- * Check to see if the tree needs to be collapsed. If so, roll
- * the transacton and fall into the shrink state.
- */
- if (retval && (state->path.active > 1)) {
- error = xfs_da3_join(state);
- if (error)
- goto out;
-
- attr->xattri_dela_state = XFS_DAS_RM_SHRINK;
- trace_xfs_attr_remove_iter_return(
- attr->xattri_dela_state, args->dp);
- return -EAGAIN;
- }
-
- fallthrough;
- case XFS_DAS_RM_SHRINK:
- /*
- * If the result is small enough, push it all into the inode.
- * This is our final state so it's safe to return a dirty
- * transaction.
- */
- if (xfs_attr_is_leaf(dp))
- error = xfs_attr_node_shrink(args, state);
- ASSERT(error != -EAGAIN);
- break;
- default:
- ASSERT(0);
- error = -EINVAL;
- goto out;
- }
-out:
- if (state)
- xfs_da_state_free(state);
- return error;
-}
-
/*
* Fill in the disk block numbers in the state structure for the buffers
* that are attached to the state structure.
--
2.35.1
