From 91a27b2a756784714e924e5e854b919273082d26 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Wed, 10 Oct 2012 15:25:28 -0400 Subject: vfs: define struct filename and have getname() return it getname() is intended to copy pathname strings from userspace into a kernel buffer. The result is just a string in kernel space. It would however be quite helpful to be able to attach some ancillary info to the string. For instance, we could attach some audit-related info to reduce the amount of audit-related processing needed. When auditing is enabled, we could also call getname() on the string more than once and not need to recopy it from userspace. This patchset converts the getname()/putname() interfaces to return a struct instead of a string. For now, the struct just tracks the string in kernel space and the original userland pointer for it. Later, we'll add other information to the struct as it becomes convenient. Signed-off-by: Jeff Layton Signed-off-by: Al Viro --- fs/quota/quota.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'fs/quota') diff --git a/fs/quota/quota.c b/fs/quota/quota.c index ff0135d6bc51..af1661f7a54f 100644 --- a/fs/quota/quota.c +++ b/fs/quota/quota.c @@ -331,11 +331,11 @@ static struct super_block *quotactl_block(const char __user *special, int cmd) #ifdef CONFIG_BLOCK struct block_device *bdev; struct super_block *sb; - char *tmp = getname(special); + struct filename *tmp = getname(special); if (IS_ERR(tmp)) return ERR_CAST(tmp); - bdev = lookup_bdev(tmp); + bdev = lookup_bdev(tmp->name); putname(tmp); if (IS_ERR(bdev)) return ERR_CAST(bdev); -- cgit v1.2.3-59-g8ed1b