iget: stop PROCFS from using iget() and read_inode()
Stop the PROCFS filesystem from using iget() and read_inode(). Merge
procfs_read_inode() into procfs_get_inode(), and have that call iget_locked()
instead of iget().
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 1a551d9..6ecf639 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -73,11 +73,6 @@
struct vfsmount *proc_mnt;
-static void proc_read_inode(struct inode * inode)
-{
- inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
-}
-
static struct kmem_cache * proc_inode_cachep;
static struct inode *proc_alloc_inode(struct super_block *sb)
@@ -128,7 +123,6 @@
static const struct super_operations proc_sops = {
.alloc_inode = proc_alloc_inode,
.destroy_inode = proc_destroy_inode,
- .read_inode = proc_read_inode,
.drop_inode = generic_delete_inode,
.delete_inode = proc_delete_inode,
.statfs = simple_statfs,
@@ -401,39 +395,41 @@
if (de != NULL && !try_module_get(de->owner))
goto out_mod;
- inode = iget(sb, ino);
+ inode = iget_locked(sb, ino);
if (!inode)
goto out_ino;
-
- PROC_I(inode)->fd = 0;
- PROC_I(inode)->pde = de;
- if (de) {
- if (de->mode) {
- inode->i_mode = de->mode;
- inode->i_uid = de->uid;
- inode->i_gid = de->gid;
- }
- if (de->size)
- inode->i_size = de->size;
- if (de->nlink)
- inode->i_nlink = de->nlink;
- if (de->proc_iops)
- inode->i_op = de->proc_iops;
- if (de->proc_fops) {
- if (S_ISREG(inode->i_mode)) {
-#ifdef CONFIG_COMPAT
- if (!de->proc_fops->compat_ioctl)
- inode->i_fop =
- &proc_reg_file_ops_no_compat;
- else
-#endif
- inode->i_fop = &proc_reg_file_ops;
+ if (inode->i_state & I_NEW) {
+ inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+ PROC_I(inode)->fd = 0;
+ PROC_I(inode)->pde = de;
+ if (de) {
+ if (de->mode) {
+ inode->i_mode = de->mode;
+ inode->i_uid = de->uid;
+ inode->i_gid = de->gid;
}
- else
- inode->i_fop = de->proc_fops;
+ if (de->size)
+ inode->i_size = de->size;
+ if (de->nlink)
+ inode->i_nlink = de->nlink;
+ if (de->proc_iops)
+ inode->i_op = de->proc_iops;
+ if (de->proc_fops) {
+ if (S_ISREG(inode->i_mode)) {
+#ifdef CONFIG_COMPAT
+ if (!de->proc_fops->compat_ioctl)
+ inode->i_fop =
+ &proc_reg_file_ops_no_compat;
+ else
+#endif
+ inode->i_fop = &proc_reg_file_ops;
+ } else {
+ inode->i_fop = de->proc_fops;
+ }
+ }
}
+ unlock_new_inode(inode);
}
-
return inode;
out_ino: