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>
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@ -73,11 +73,6 @@ static void proc_delete_inode(struct inode *inode)
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struct vfsmount *proc_mnt;
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static void proc_read_inode(struct inode * inode)
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{
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inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
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}
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static struct kmem_cache * proc_inode_cachep;
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static struct inode *proc_alloc_inode(struct super_block *sb)
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@ -128,7 +123,6 @@ static int proc_remount(struct super_block *sb, int *flags, char *data)
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static const struct super_operations proc_sops = {
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.alloc_inode = proc_alloc_inode,
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.destroy_inode = proc_destroy_inode,
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.read_inode = proc_read_inode,
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.drop_inode = generic_delete_inode,
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.delete_inode = proc_delete_inode,
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.statfs = simple_statfs,
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@ -401,39 +395,41 @@ struct inode *proc_get_inode(struct super_block *sb, unsigned int ino,
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if (de != NULL && !try_module_get(de->owner))
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goto out_mod;
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inode = iget(sb, ino);
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inode = iget_locked(sb, ino);
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if (!inode)
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goto out_ino;
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PROC_I(inode)->fd = 0;
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PROC_I(inode)->pde = de;
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if (de) {
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if (de->mode) {
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inode->i_mode = de->mode;
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inode->i_uid = de->uid;
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inode->i_gid = de->gid;
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}
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if (de->size)
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inode->i_size = de->size;
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if (de->nlink)
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inode->i_nlink = de->nlink;
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if (de->proc_iops)
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inode->i_op = de->proc_iops;
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if (de->proc_fops) {
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if (S_ISREG(inode->i_mode)) {
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#ifdef CONFIG_COMPAT
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if (!de->proc_fops->compat_ioctl)
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inode->i_fop =
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&proc_reg_file_ops_no_compat;
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else
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#endif
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inode->i_fop = &proc_reg_file_ops;
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if (inode->i_state & I_NEW) {
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inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
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PROC_I(inode)->fd = 0;
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PROC_I(inode)->pde = de;
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if (de) {
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if (de->mode) {
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inode->i_mode = de->mode;
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inode->i_uid = de->uid;
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inode->i_gid = de->gid;
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}
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if (de->size)
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inode->i_size = de->size;
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if (de->nlink)
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inode->i_nlink = de->nlink;
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if (de->proc_iops)
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inode->i_op = de->proc_iops;
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if (de->proc_fops) {
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if (S_ISREG(inode->i_mode)) {
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#ifdef CONFIG_COMPAT
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if (!de->proc_fops->compat_ioctl)
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inode->i_fop =
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&proc_reg_file_ops_no_compat;
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else
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#endif
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inode->i_fop = &proc_reg_file_ops;
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} else {
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inode->i_fop = de->proc_fops;
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}
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}
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else
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inode->i_fop = de->proc_fops;
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}
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unlock_new_inode(inode);
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}
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return inode;
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out_ino:
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