1 files changed, 21 insertions, 33 deletions

diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 4fbd9fccd550..7913e3252167 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -626,9 +626,15 @@ static int hugetlbfs_statfs(struct dentry *dentry, struct kstatfs *buf)
                 spin_lock(&sbinfo->stat_lock);
                 /* 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;
+                if (sbinfo->spool) {
+                        long free_pages;
+
+                        spin_lock(&sbinfo->spool->lock);
+                        buf->f_blocks = sbinfo->spool->max_hpages;
+                        free_pages = sbinfo->spool->max_hpages
+                                - sbinfo->spool->used_hpages;
+                        buf->f_bavail = buf->f_bfree = free_pages;
+                        spin_unlock(&sbinfo->spool->lock);
                         buf->f_files = sbinfo->max_inodes;
                         buf->f_ffree = sbinfo->free_inodes;
                 }
@@ -644,6 +650,10 @@ static void hugetlbfs_put_super(struct super_block *sb)
 
         if (sbi) {
                 sb->s_fs_info = NULL;
+
+                if (sbi->spool)
+                        hugepage_put_subpool(sbi->spool);
+
                 kfree(sbi);
         }
 }
@@ -874,10 +884,14 @@ hugetlbfs_fill_super(struct super_block *sb, void *data, int silent)
         sb->s_fs_info = sbinfo;
         sbinfo->hstate = config.hstate;
         spin_lock_init(&sbinfo->stat_lock);
-        sbinfo->max_blocks = config.nr_blocks;
-        sbinfo->free_blocks = config.nr_blocks;
         sbinfo->max_inodes = config.nr_inodes;
         sbinfo->free_inodes = config.nr_inodes;
+        sbinfo->spool = NULL;
+        if (config.nr_blocks != -1) {
+                sbinfo->spool = hugepage_new_subpool(config.nr_blocks);
+                if (!sbinfo->spool)
+                        goto out_free;
+        }
         sb->s_maxbytes = MAX_LFS_FILESIZE;
         sb->s_blocksize = huge_page_size(config.hstate);
         sb->s_blocksize_bits = huge_page_shift(config.hstate);
@@ -896,38 +910,12 @@ hugetlbfs_fill_super(struct super_block *sb, void *data, int silent)
         sb->s_root = root;
         return 0;
 out_free:
+        if (sbinfo->spool)
+                kfree(sbinfo->spool);
         kfree(sbinfo);
         return -ENOMEM;
 }
 
-int hugetlb_get_quota(struct address_space *mapping, long delta)
-{
-        int ret = 0;
-        struct hugetlbfs_sb_info *sbinfo = HUGETLBFS_SB(mapping->host->i_sb);
-
-        if (sbinfo->free_blocks > -1) {
-                spin_lock(&sbinfo->stat_lock);
-                if (sbinfo->free_blocks - delta >= 0)
-                        sbinfo->free_blocks -= delta;
-                else
-                        ret = -ENOMEM;
-                spin_unlock(&sbinfo->stat_lock);
-        }
-
-        return ret;
-}
-
-void hugetlb_put_quota(struct address_space *mapping, long delta)
-{
-        struct hugetlbfs_sb_info *sbinfo = HUGETLBFS_SB(mapping->host->i_sb);
-
-        if (sbinfo->free_blocks > -1) {
-                spin_lock(&sbinfo->stat_lock);
-                sbinfo->free_blocks += delta;
-                spin_unlock(&sbinfo->stat_lock);
-        }
-}
-
 static struct dentry *hugetlbfs_mount(struct file_system_type *fs_type,
         int flags, const char *dev_name, void *data)
 {