Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6

[linux-2.6-block.git] / fs / hugetlbfs / inode.c

diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 04598e12c489ebd20ee6bb9b81217dc2f954d74b..3b3cc28cdefcaf5929be2a3d13be24bf4791fd6c 100644 (file)
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -364,7 +364,6 @@ static void truncate_hugepages(struct inode *inode, loff_t lstart)
                        ++next;
                        truncate_huge_page(page);
                        unlock_page(page);
-                       hugetlb_put_quota(mapping);
                        freed++;
                }
                huge_pagevec_release(&pvec);
@@ -384,7 +383,7 @@ static void hugetlbfs_forget_inode(struct inode *inode) __releases(inode_lock)
        struct super_block *sb = inode->i_sb;
 
        if (!hlist_unhashed(&inode->i_hash)) {
-               if (!(inode->i_state & (I_DIRTY|I_LOCK)))
+               if (!(inode->i_state & (I_DIRTY|I_SYNC)))
                        list_move(&inode->i_list, &inode_unused);
                inodes_stat.nr_unused++;
                if (!sb || (sb->s_flags & MS_ACTIVE)) {
@@ -697,7 +696,7 @@ static const struct address_space_operations hugetlbfs_aops = {
 };
 
 
-static void init_once(void *foo, struct kmem_cache *cachep, unsigned long flags)
+static void init_once(struct kmem_cache *cachep, void *foo)
 {
        struct hugetlbfs_inode_info *ei = (struct hugetlbfs_inode_info *)foo;
 
@@ -769,7 +768,7 @@ hugetlbfs_parse_options(char *options, struct hugetlbfs_config *pconfig)
                case Opt_mode:
                        if (match_octal(&args[0], &option))
                                goto bad_val;
-                       pconfig->mode = option & 0777U;
+                       pconfig->mode = option & 01777U;
                        break;
 
                case Opt_size: {
@@ -859,15 +858,15 @@ out_free:
        return -ENOMEM;
 }
 
-int hugetlb_get_quota(struct address_space *mapping)
+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 > 0)
-                       sbinfo->free_blocks--;
+               if (sbinfo->free_blocks - delta >= 0)
+                       sbinfo->free_blocks -= delta;
                else
                        ret = -ENOMEM;
                spin_unlock(&sbinfo->stat_lock);
@@ -876,13 +875,13 @@ int hugetlb_get_quota(struct address_space *mapping)
        return ret;
 }
 
-void hugetlb_put_quota(struct address_space *mapping)
+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++;
+               sbinfo->free_blocks += delta;
                spin_unlock(&sbinfo->stat_lock);
        }
 }
@@ -933,16 +932,11 @@ struct file *hugetlb_file_setup(const char *name, size_t size)
        if (!dentry)
                goto out_shm_unlock;
 
-       error = -ENFILE;
-       file = get_empty_filp();
-       if (!file)
-               goto out_dentry;
-
        error = -ENOSPC;
        inode = hugetlbfs_get_inode(root->d_sb, current->fsuid,
                                current->fsgid, S_IFREG | S_IRWXUGO, 0);
        if (!inode)
-               goto out_file;
+               goto out_dentry;
 
        error = -ENOMEM;
        if (hugetlb_reserve_pages(inode, 0, size >> HPAGE_SHIFT))
@@ -951,17 +945,18 @@ struct file *hugetlb_file_setup(const char *name, size_t size)
        d_instantiate(dentry, inode);
        inode->i_size = size;
        inode->i_nlink = 0;
-       file->f_path.mnt = mntget(hugetlbfs_vfsmount);
-       file->f_path.dentry = dentry;
-       file->f_mapping = inode->i_mapping;
-       file->f_op = &hugetlbfs_file_operations;
-       file->f_mode = FMODE_WRITE | FMODE_READ;
+
+       error = -ENFILE;
+       file = alloc_file(hugetlbfs_vfsmount, dentry,
+                       FMODE_WRITE | FMODE_READ,
+                       &hugetlbfs_file_operations);
+       if (!file)
+               goto out_inode;
+
        return file;
 
 out_inode:
        iput(inode);
-out_file:
-       put_filp(file);
 out_dentry:
        dput(dentry);
 out_shm_unlock:
@@ -974,11 +969,15 @@ static int __init init_hugetlbfs_fs(void)
        int error;
        struct vfsmount *vfsmount;
 
+       error = bdi_init(&hugetlbfs_backing_dev_info);
+       if (error)
+               return error;
+
        hugetlbfs_inode_cachep = kmem_cache_create("hugetlbfs_inode_cache",
                                        sizeof(struct hugetlbfs_inode_info),
                                        0, 0, init_once);
        if (hugetlbfs_inode_cachep == NULL)
-               return -ENOMEM;
+               goto out2;
 
        error = register_filesystem(&hugetlbfs_fs_type);
        if (error)
@@ -996,6 +995,8 @@ static int __init init_hugetlbfs_fs(void)
  out:
        if (error)
                kmem_cache_destroy(hugetlbfs_inode_cachep);
+ out2:
+       bdi_destroy(&hugetlbfs_backing_dev_info);
        return error;
 }
 
@@ -1003,6 +1004,7 @@ static void __exit exit_hugetlbfs_fs(void)
 {
        kmem_cache_destroy(hugetlbfs_inode_cachep);
        unregister_filesystem(&hugetlbfs_fs_type);
+       bdi_destroy(&hugetlbfs_backing_dev_info);
 }
 
 module_init(init_hugetlbfs_fs)