ocfs2: fix gfp mask in some file system paths

We were using GFP_KERNEL in a handful of places which really wanted
GFP_NOFS. Fix this.
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>

fs/ocfs2/extent_map.c

@@ -569,7 +569,7 @@ static int ocfs2_extent_map_insert(struct inode *inode,
 
 	ret = -ENOMEM;
 	ctxt.new_ent = kmem_cache_alloc(ocfs2_em_ent_cachep,
-					GFP_KERNEL);
+					GFP_NOFS);
 	if (!ctxt.new_ent) {
 		mlog_errno(ret);
 		return ret;
@@ -583,14 +583,14 @@ static int ocfs2_extent_map_insert(struct inode *inode,
 		if (ctxt.need_left && !ctxt.left_ent) {
 			ctxt.left_ent =
 				kmem_cache_alloc(ocfs2_em_ent_cachep,
-						 GFP_KERNEL);
+						 GFP_NOFS);
 			if (!ctxt.left_ent)
 				break;
 		}
 		if (ctxt.need_right && !ctxt.right_ent) {
 			ctxt.right_ent =
 				kmem_cache_alloc(ocfs2_em_ent_cachep,
-						 GFP_KERNEL);
+						 GFP_NOFS);
 			if (!ctxt.right_ent)
 				break;
 		}

fs/ocfs2/journal.c

@@ -117,7 +117,7 @@ struct ocfs2_journal_handle *ocfs2_alloc_handle(struct ocfs2_super *osb)
 {
 	struct ocfs2_journal_handle *retval = NULL;
 
-	retval = kcalloc(1, sizeof(*retval), GFP_KERNEL);
+	retval = kcalloc(1, sizeof(*retval), GFP_NOFS);
 	if (!retval) {
 		mlog(ML_ERROR, "Failed to allocate memory for journal "
 		     "handle!\n");
@@ -984,7 +984,7 @@ static void ocfs2_queue_recovery_completion(struct ocfs2_journal *journal,
 {
 	struct ocfs2_la_recovery_item *item;
 
-	item = kmalloc(sizeof(struct ocfs2_la_recovery_item), GFP_KERNEL);
+	item = kmalloc(sizeof(struct ocfs2_la_recovery_item), GFP_NOFS);
 	if (!item) {
 		/* Though we wish to avoid it, we are in fact safe in
 		 * skipping local alloc cleanup as fsck.ocfs2 is more

fs/ocfs2/uptodate.c

@@ -337,7 +337,7 @@ static void __ocfs2_set_buffer_uptodate(struct ocfs2_inode_info *oi,
 	     (unsigned long long)oi->ip_blkno,
 	     (unsigned long long)block, expand_tree);
 
-	new = kmem_cache_alloc(ocfs2_uptodate_cachep, GFP_KERNEL);
+	new = kmem_cache_alloc(ocfs2_uptodate_cachep, GFP_NOFS);
 	if (!new) {
 		mlog_errno(-ENOMEM);
 		return;
@@ -349,7 +349,7 @@ static void __ocfs2_set_buffer_uptodate(struct ocfs2_inode_info *oi,
 		 * has no way of tracking that. */
 		for(i = 0; i < OCFS2_INODE_MAX_CACHE_ARRAY; i++) {
 			tree[i] = kmem_cache_alloc(ocfs2_uptodate_cachep,
-						   GFP_KERNEL);
+						   GFP_NOFS);
 			if (!tree[i]) {
 				mlog_errno(-ENOMEM);
 				goto out_free;

fs/ocfs2/vote.c

@@ -586,7 +586,7 @@ static struct ocfs2_net_wait_ctxt *ocfs2_new_net_wait_ctxt(unsigned int response
 {
 	struct ocfs2_net_wait_ctxt *w;
 
-	w = kcalloc(1, sizeof(*w), GFP_KERNEL);
+	w = kcalloc(1, sizeof(*w), GFP_NOFS);
 	if (!w) {
 		mlog_errno(-ENOMEM);
 		goto bail;
@@ -749,7 +749,7 @@ static struct ocfs2_vote_msg * ocfs2_new_vote_request(struct ocfs2_super *osb,
 
 	BUG_ON(!ocfs2_is_valid_vote_request(type));
 
-	request = kcalloc(1, sizeof(*request), GFP_KERNEL);
+	request = kcalloc(1, sizeof(*request), GFP_NOFS);
 	if (!request) {
 		mlog_errno(-ENOMEM);
 	} else {
@@ -1129,7 +1129,7 @@ static int ocfs2_handle_vote_message(struct o2net_msg *msg,
 	struct ocfs2_super *osb = data;
 	struct ocfs2_vote_work *work;
 
-	work = kmalloc(sizeof(struct ocfs2_vote_work), GFP_KERNEL);
+	work = kmalloc(sizeof(struct ocfs2_vote_work), GFP_NOFS);
 	if (!work) {
 		status = -ENOMEM;
 		mlog_errno(status);