1 files changed, 3 insertions, 1 deletions

diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index 5072bf9ae0ef..b0fd2f2d0716 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -135,7 +135,8 @@ static int f2fs_xattr_advise_get(struct dentry *dentry, const char *name,
         if (strcmp(name, "") != 0)
                 return -EINVAL;
 
-        *((char *)buffer) = F2FS_I(inode)->i_advise;
+        if (buffer)
+                *((char *)buffer) = F2FS_I(inode)->i_advise;
         return sizeof(char);
 }
 
@@ -152,6 +153,7 @@ static int f2fs_xattr_advise_set(struct dentry *dentry, const char *name,
                 return -EINVAL;
 
         F2FS_I(inode)->i_advise |= *(char *)value;
+        mark_inode_dirty(inode);
         return 0;
 }