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authorLinus Torvalds <torvalds@linux-foundation.org>2013-02-27 05:16:07 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-27 05:16:07 +0100
commitd895cb1af15c04c522a25c79cc429076987c089b (patch)
tree895dc9157e28f603d937a58be664e4e440d5530c /drivers/xen
parentMerge tag 'xtensa-next-20130225' of git://github.com/czankel/xtensa-linux (diff)
parentsaner proc_get_inode() calling conventions (diff)
downloadlinux-d895cb1af15c04c522a25c79cc429076987c089b.tar.xz
linux-d895cb1af15c04c522a25c79cc429076987c089b.zip
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs pile (part one) from Al Viro: "Assorted stuff - cleaning namei.c up a bit, fixing ->d_name/->d_parent locking violations, etc. The most visible changes here are death of FS_REVAL_DOT (replaced with "has ->d_weak_revalidate()") and a new helper getting from struct file to inode. Some bits of preparation to xattr method interface changes. Misc patches by various people sent this cycle *and* ocfs2 fixes from several cycles ago that should've been upstream right then. PS: the next vfs pile will be xattr stuff." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (46 commits) saner proc_get_inode() calling conventions proc: avoid extra pde_put() in proc_fill_super() fs: change return values from -EACCES to -EPERM fs/exec.c: make bprm_mm_init() static ocfs2/dlm: use GFP_ATOMIC inside a spin_lock ocfs2: fix possible use-after-free with AIO ocfs2: Fix oops in ocfs2_fast_symlink_readpage() code path get_empty_filp()/alloc_file() leave both ->f_pos and ->f_version zero target: writev() on single-element vector is pointless export kernel_write(), convert open-coded instances fs: encode_fh: return FILEID_INVALID if invalid fid_type kill f_vfsmnt vfs: kill FS_REVAL_DOT by adding a d_weak_revalidate dentry op nfsd: handle vfs_getattr errors in acl protocol switch vfs_getattr() to struct path default SET_PERSONALITY() in linux/elf.h ceph: prepopulate inodes only when request is aborted d_hash_and_lookup(): export, switch open-coded instances 9p: switch v9fs_set_create_acl() to inode+fid, do it before d_instantiate() 9p: split dropping the acls from v9fs_set_create_acl() ...
Diffstat (limited to 'drivers/xen')
-rw-r--r--drivers/xen/xenfs/super.c66
1 files changed, 11 insertions, 55 deletions
diff --git a/drivers/xen/xenfs/super.c b/drivers/xen/xenfs/super.c
index 459b9ac45cf5..ec0abb6df3c3 100644
--- a/drivers/xen/xenfs/super.c
+++ b/drivers/xen/xenfs/super.c
@@ -24,47 +24,6 @@
MODULE_DESCRIPTION("Xen filesystem");
MODULE_LICENSE("GPL");
-static struct inode *xenfs_make_inode(struct super_block *sb, int mode)
-{
- struct inode *ret = new_inode(sb);
-
- if (ret) {
- ret->i_mode = mode;
- ret->i_uid = GLOBAL_ROOT_UID;
- ret->i_gid = GLOBAL_ROOT_GID;
- ret->i_blocks = 0;
- ret->i_atime = ret->i_mtime = ret->i_ctime = CURRENT_TIME;
- }
- return ret;
-}
-
-static struct dentry *xenfs_create_file(struct super_block *sb,
- struct dentry *parent,
- const char *name,
- const struct file_operations *fops,
- void *data,
- int mode)
-{
- struct dentry *dentry;
- struct inode *inode;
-
- dentry = d_alloc_name(parent, name);
- if (!dentry)
- return NULL;
-
- inode = xenfs_make_inode(sb, S_IFREG | mode);
- if (!inode) {
- dput(dentry);
- return NULL;
- }
-
- inode->i_fop = fops;
- inode->i_private = data;
-
- d_add(dentry, inode);
- return dentry;
-}
-
static ssize_t capabilities_read(struct file *file, char __user *buf,
size_t size, loff_t *off)
{
@@ -84,26 +43,23 @@ static const struct file_operations capabilities_file_ops = {
static int xenfs_fill_super(struct super_block *sb, void *data, int silent)
{
static struct tree_descr xenfs_files[] = {
- [1] = {},
- { "xenbus", &xen_xenbus_fops, S_IRUSR|S_IWUSR },
+ [2] = { "xenbus", &xen_xenbus_fops, S_IRUSR|S_IWUSR },
{ "capabilities", &capabilities_file_ops, S_IRUGO },
{ "privcmd", &xen_privcmd_fops, S_IRUSR|S_IWUSR },
{""},
};
- int rc;
- rc = simple_fill_super(sb, XENFS_SUPER_MAGIC, xenfs_files);
- if (rc < 0)
- return rc;
-
- if (xen_initial_domain()) {
- xenfs_create_file(sb, sb->s_root, "xsd_kva",
- &xsd_kva_file_ops, NULL, S_IRUSR|S_IWUSR);
- xenfs_create_file(sb, sb->s_root, "xsd_port",
- &xsd_port_file_ops, NULL, S_IRUSR|S_IWUSR);
- }
+ static struct tree_descr xenfs_init_files[] = {
+ [2] = { "xenbus", &xen_xenbus_fops, S_IRUSR|S_IWUSR },
+ { "capabilities", &capabilities_file_ops, S_IRUGO },
+ { "privcmd", &xen_privcmd_fops, S_IRUSR|S_IWUSR },
+ { "xsd_kva", &xsd_kva_file_ops, S_IRUSR|S_IWUSR},
+ { "xsd_port", &xsd_port_file_ops, S_IRUSR|S_IWUSR},
+ {""},
+ };
- return rc;
+ return simple_fill_super(sb, XENFS_SUPER_MAGIC,
+ xen_initial_domain() ? xenfs_init_files : xenfs_files);
}
static struct dentry *xenfs_mount(struct file_system_type *fs_type,