Merge tag 'xfs-for-linus-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs

Pull xfs updates from Dave Chinner:
 "A pretty average collection of fixes, cleanups and improvements in
  this request.

  Summary:
   - fixes for mount line parsing, sparse warnings, read-only compat
     feature remount behaviour
   - allow fast path symlink lookups for inline symlinks.
   - attribute listing cleanups
   - writeback goes direct to bios rather than indirecting through
     bufferheads
   - transaction allocation cleanup
   - optimised kmem_realloc
   - added configurable error handling for metadata write errors,
     changed default error handling behaviour from "retry forever" to
     "retry until unmount then fail"
   - fixed several inode cluster writeback lookup vs reclaim race
     conditions
   - fixed inode cluster writeback checking wrong inode after lookup
   - fixed bugs where struct xfs_inode freeing wasn't actually RCU safe
   - cleaned up inode reclaim tagging"

* tag 'xfs-for-linus-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs: (39 commits)
  xfs: fix warning in xfs_finish_page_writeback for non-debug builds
  xfs: move reclaim tagging functions
  xfs: simplify inode reclaim tagging interfaces
  xfs: rename variables in xfs_iflush_cluster for clarity
  xfs: xfs_iflush_cluster has range issues
  xfs: mark reclaimed inodes invalid earlier
  xfs: xfs_inode_free() isn't RCU safe
  xfs: optimise xfs_iext_destroy
  xfs: skip stale inodes in xfs_iflush_cluster
  xfs: fix inode validity check in xfs_iflush_cluster
  xfs: xfs_iflush_cluster fails to abort on error
  xfs: remove xfs_fs_evict_inode()
  xfs: add "fail at unmount" error handling configuration
  xfs: add configuration handlers for specific errors
  xfs: add configuration of error failure speed
  xfs: introduce table-based init for error behaviors
  xfs: add configurable error support to metadata buffers
  xfs: introduce metadata IO error class
  xfs: configurable error behavior via sysfs
  xfs: buffer ->bi_end_io function requires irq-safe lock
  ...

1 files changed, 26 insertions, 59 deletions

diff --git a/fs/xfs/xfs_attr_list.c b/fs/xfs/xfs_attr_list.c
index 4fa14820e2e2..d25f26b22ac9 100644
--- a/fs/xfs/xfs_attr_list.c
+++ b/fs/xfs/xfs_attr_list.c
@@ -106,18 +106,15 @@ xfs_attr_shortform_list(xfs_attr_list_context_t *context)
 					   sfe->flags,
 					   sfe->nameval,
 					   (int)sfe->namelen,
-					   (int)sfe->valuelen,
-					   &sfe->nameval[sfe->namelen]);
-
+					   (int)sfe->valuelen);
+			if (error)
+				return error;
 			/*
 			 * Either search callback finished early or
 			 * didn't fit it all in the buffer after all.
 			 */
 			if (context->seen_enough)
 				break;
-
-			if (error)
-				return error;
 			sfe = XFS_ATTR_SF_NEXTENTRY(sfe);
 		}
 		trace_xfs_attr_list_sf_all(context);
@@ -200,8 +197,7 @@ xfs_attr_shortform_list(xfs_attr_list_context_t *context)
 					sbp->flags,
 					sbp->name,
 					sbp->namelen,
-					sbp->valuelen,
-					&sbp->name[sbp->namelen]);
+					sbp->valuelen);
 		if (error) {
 			kmem_free(sbuf);
 			return error;
@@ -416,6 +412,9 @@ xfs_attr3_leaf_list_int(
 	 */
 	retval = 0;
 	for (; i < ichdr.count; entry++, i++) {
+		char *name;
+		int namelen, valuelen;
+
 		if (be32_to_cpu(entry->hashval) != cursor->hashval) {
 			cursor->hashval = be32_to_cpu(entry->hashval);
 			cursor->offset = 0;
@@ -425,56 +424,25 @@ xfs_attr3_leaf_list_int(
 			continue;		/* skip incomplete entries */
 
 		if (entry->flags & XFS_ATTR_LOCAL) {
-			xfs_attr_leaf_name_local_t *name_loc =
-				xfs_attr3_leaf_name_local(leaf, i);
-
-			retval = context->put_listent(context,
-						entry->flags,
-						name_loc->nameval,
-						(int)name_loc->namelen,
-						be16_to_cpu(name_loc->valuelen),
-						&name_loc->nameval[name_loc->namelen]);
-			if (retval)
-				return retval;
+			xfs_attr_leaf_name_local_t *name_loc;
+
+			name_loc = xfs_attr3_leaf_name_local(leaf, i);
+			name = name_loc->nameval;
+			namelen = name_loc->namelen;
+			valuelen = be16_to_cpu(name_loc->valuelen);
 		} else {
-			xfs_attr_leaf_name_remote_t *name_rmt =
-				xfs_attr3_leaf_name_remote(leaf, i);
-
-			int valuelen = be32_to_cpu(name_rmt->valuelen);
-
-			if (context->put_value) {
-				xfs_da_args_t args;
-
-				memset((char *)&args, 0, sizeof(args));
-				args.geo = context->dp->i_mount->m_attr_geo;
-				args.dp = context->dp;
-				args.whichfork = XFS_ATTR_FORK;
-				args.valuelen = valuelen;
-				args.rmtvaluelen = valuelen;
-				args.value = kmem_alloc(valuelen, KM_SLEEP | KM_NOFS);
-				args.rmtblkno = be32_to_cpu(name_rmt->valueblk);
-				args.rmtblkcnt = xfs_attr3_rmt_blocks(
-							args.dp->i_mount, valuelen);
-				retval = xfs_attr_rmtval_get(&args);
-				if (!retval)
-					retval = context->put_listent(context,
-							entry->flags,
-							name_rmt->name,
-							(int)name_rmt->namelen,
-							valuelen,
-							args.value);
-				kmem_free(args.value);
-			} else {
-				retval = context->put_listent(context,
-						entry->flags,
-						name_rmt->name,
-						(int)name_rmt->namelen,
-						valuelen,
-						NULL);
-			}
-			if (retval)
-				return retval;
+			xfs_attr_leaf_name_remote_t *name_rmt;
+
+			name_rmt = xfs_attr3_leaf_name_remote(leaf, i);
+			name = name_rmt->name;
+			namelen = name_rmt->namelen;
+			valuelen = be32_to_cpu(name_rmt->valuelen);
 		}
+
+		retval = context->put_listent(context, entry->flags,
+					      name, namelen, valuelen);
+		if (retval)
+			break;
 		if (context->seen_enough)
 			break;
 		cursor->offset++;
@@ -551,8 +519,7 @@ xfs_attr_put_listent(
 	int		flags,
 	unsigned char	*name,
 	int		namelen,
-	int		valuelen,
-	unsigned char	*value)
+	int		valuelen)
 {
 	struct attrlist *alist = (struct attrlist *)context->alist;
 	attrlist_ent_t *aep;
@@ -581,7 +548,7 @@ xfs_attr_put_listent(
 		trace_xfs_attr_list_full(context);
 		alist->al_more = 1;
 		context->seen_enough = 1;
-		return 1;
+		return 0;
 	}
 
 	aep = (attrlist_ent_t *)&context->alist[context->firstu];