diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2010-12-18 10:44:00 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2011-01-12 20:02:43 -0500 |
| commit | 3d23985d6cfa7908e46fd0c62a2ee84faffe4d8b (patch) | |
| tree | 5561a4f3eb3ef265de2b6d224194ff58b713fe0a /fs/fat/namei_vfat.c | |
| parent | 6cc9c1d2c1414ef67f465462aa96a5d1fed12f5d (diff) | |
switch fat to ->s_d_op, close exportfs races there
don't bother with lock_super() in fat_fill_super() callers, while
we are at it - there won't be any concurrency anyway.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/fat/namei_vfat.c')
| -rw-r--r-- | fs/fat/namei_vfat.c | 27 |
1 files changed, 9 insertions, 18 deletions
diff --git a/fs/fat/namei_vfat.c b/fs/fat/namei_vfat.c index e3ffc5e1233..f88f752babd 100644 --- a/fs/fat/namei_vfat.c +++ b/fs/fat/namei_vfat.c @@ -772,13 +772,10 @@ static struct dentry *vfat_lookup(struct inode *dir, struct dentry *dentry, out: unlock_super(sb); - d_set_d_op(dentry, sb->s_root->d_op); dentry->d_time = dentry->d_parent->d_inode->i_version; dentry = d_splice_alias(inode, dentry); - if (dentry) { - d_set_d_op(dentry, sb->s_root->d_op); + if (dentry) dentry->d_time = dentry->d_parent->d_inode->i_version; - } return dentry; error: @@ -1066,24 +1063,18 @@ static const struct inode_operations vfat_dir_inode_operations = { .getattr = fat_getattr, }; -static int vfat_fill_super(struct super_block *sb, void *data, int silent) +static void setup(struct super_block *sb) { - int res; - - lock_super(sb); - res = fat_fill_super(sb, data, silent, &vfat_dir_inode_operations, 1); - if (res) { - unlock_super(sb); - return res; - } - if (MSDOS_SB(sb)->options.name_check != 's') - d_set_d_op(sb->s_root, &vfat_ci_dentry_ops); + sb->s_d_op = &vfat_ci_dentry_ops; else - d_set_d_op(sb->s_root, &vfat_dentry_ops); + sb->s_d_op = &vfat_dentry_ops; +} - unlock_super(sb); - return 0; +static int vfat_fill_super(struct super_block *sb, void *data, int silent) +{ + return fat_fill_super(sb, data, silent, &vfat_dir_inode_operations, + 1, setup); } static struct dentry *vfat_mount(struct file_system_type *fs_type, |