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Commit 76aab3ab authored by Al Viro's avatar Al Viro
Browse files

proc_sys_fill_cache(): switch to d_alloc_parallel() 



make it usable with directory locked shared

Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 3781764b

fs/proc/proc_sysctl.c

+8 −7
Original line number Diff line number Diff line
@@ -627,19 +627,20 @@ static bool proc_sys_fill_cache(struct file *file, 


	child = d_lookup(dir, &qname);

	if (!child) {

		child = d_alloc(dir, &qname);

		if (child) {

		DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq);

		child = d_alloc_parallel(dir, &qname, &wq);

		if (IS_ERR(child))

			return false;

		if (d_in_lookup(child)) {

			inode = proc_sys_make_inode(dir->d_sb, head, table);

			if (!inode) {

				d_lookup_done(child);

				dput(child);

				return false;

			} else {

			}

			d_set_d_op(child, &proc_sys_dentry_operations);

			d_add(child, inode);

		}

		} else {

			return false;

		}

	}

	inode = d_inode(child);

	ino  = inode->i_ino;