[PATCH] Fix hugetlbfs_statfs() reporting of block limits

[karo-tx-linux.git] / fs / hugetlbfs / inode.c

diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 64983ab55586856ae06a93393d1ea38c907853e9..8c1cef3bb677015bb1de08922b6b21cc35055f2e 100644 (file)
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -512,10 +512,14 @@ static int hugetlbfs_statfs(struct super_block *sb, struct kstatfs *buf)
        buf->f_bsize = HPAGE_SIZE;
        if (sbinfo) {
                spin_lock(&sbinfo->stat_lock);
-               buf->f_blocks = sbinfo->max_blocks;
-               buf->f_bavail = buf->f_bfree = sbinfo->free_blocks;
-               buf->f_files = sbinfo->max_inodes;
-               buf->f_ffree = sbinfo->free_inodes;
+               /* If no limits set, just report 0 for max/free/used
+                * blocks, like simple_statfs() */
+               if (sbinfo->max_blocks >= 0) {
+                       buf->f_blocks = sbinfo->max_blocks;
+                       buf->f_bavail = buf->f_bfree = sbinfo->free_blocks;
+                       buf->f_files = sbinfo->max_inodes;
+                       buf->f_ffree = sbinfo->free_inodes;
+               }
                spin_unlock(&sbinfo->stat_lock);
        }
        buf->f_namelen = NAME_MAX;