Commit e7c0a167 authored by Miklos Szeredi's avatar Miklos Szeredi
Browse files

fuse: make fuse_dentry_revalidate() RCU aware 



Only bail out of fuse_dentry_revalidate() on LOOKUP_RCU when blocking
is actually necessary.

CC: Nick Piggin <npiggin@gmail.com>
Signed-off-by: default avatarMiklos Szeredi <mszeredi@suse.cz>
parent 19690ddb

fs/fuse/dir.c

+4 −4
Original line number Diff line number Diff line
@@ -158,10 +158,7 @@ static int fuse_dentry_revalidate(struct dentry *entry, struct nameidata *nd) 
{

	struct inode *inode;



	if (nd && nd->flags & LOOKUP_RCU)

		return -ECHILD;



	inode = entry->d_inode;

	inode = ACCESS_ONCE(entry->d_inode);

	if (inode && is_bad_inode(inode))

		return 0;

	else if (fuse_dentry_time(entry) < get_jiffies_64()) {
@@ -177,6 +174,9 @@ static int fuse_dentry_revalidate(struct dentry *entry, struct nameidata *nd) 
		if (!inode)

			return 0;



		if (nd->flags & LOOKUP_RCU)

			return -ECHILD;



		fc = get_fuse_conn(inode);

		req = fuse_get_req(fc);

		if (IS_ERR(req))