Commit e81568eb authored Sep 05, 2013 by Milosz Tanski

ceph: Do not do invalidate if the filesystem is mounted nofsc



Previously we would always try to enqueue work even if the filesystem is not
mounted with fscache enabled (or the file has no cookie). In the case of the
filesystem mouned nofsc (but with fscache compiled in) this would lead to a
crash.

Signed-off-by: Milosz Tanski <milosz@adfin.com>

parent d4d3aa38

fs/ceph/cache.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -374,8 +374,12 @@ static void ceph_revalidate_work(struct work_struct *work)

		void ceph_queue_revalidate(struct inode *inode)
		{
		struct ceph_fs_client *fsc = ceph_sb_to_client(inode->i_sb);
		struct ceph_inode_info *ci = ceph_inode(inode);

		if (fsc->revalidate_wq == NULL \|\| ci->fscache == NULL)
		return;

		ihold(inode);

		if (queue_work(ceph_sb_to_client(inode->i_sb)->revalidate_wq,