1 files changed, 8 insertions, 2 deletions

diff --git a/fs/inode.c b/fs/inode.c
index 9a012cc5b6cd..47b87b071de3 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -145,7 +145,7 @@ static struct inode *alloc_inode(struct super_block *sb)
                 mapping->a_ops = &empty_aops;
                 mapping->host = inode;
                 mapping->flags = 0;
-                mapping_set_gfp_mask(mapping, GFP_HIGHUSER);
+                mapping_set_gfp_mask(mapping, GFP_HIGHUSER_PAGECACHE);
                 mapping->assoc_mapping = NULL;
                 mapping->backing_dev_info = &default_backing_dev_info;
 
@@ -519,7 +519,13 @@ repeat:
  *      new_inode       - obtain an inode
  *      @sb: superblock
  *
- *      Allocates a new inode for given superblock.
+ *      Allocates a new inode for given superblock. The default gfp_mask
+ *      for allocations related to inode->i_mapping is GFP_HIGHUSER_PAGECACHE.
+ *      If HIGHMEM pages are unsuitable or it is known that pages allocated
+ *      for the page cache are not reclaimable or migratable,
+ *      mapping_set_gfp_mask() must be called with suitable flags on the
+ *      newly created inode's mapping
+ *
  */
 struct inode *new_inode(struct super_block *sb)
 {