NFS: Fix a bug in nfs_fscache_release_page()

Not having an fscache cookie is perfectly valid if the user didn't mount
with the fscache option.

This patch fixes http://bugzilla.kernel.org/show_bug.cgi?id=15234



Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Acked-by: David Howells <dhowells@redhat.com>
Cc: stable@kernel.org

parent deb0c98c

fs/nfs/fscache.c

+4 −5

Original line number	Diff line number	Diff line
		@@ -354,12 +354,11 @@ void nfs_fscache_reset_inode_cookie(struct inode *inode)
		*/
		int nfs_fscache_release_page(struct page *page, gfp_t gfp)
		{
		if (PageFsCache(page)) {
		struct nfs_inode *nfsi = NFS_I(page->mapping->host);
		struct fscache_cookie *cookie = nfsi->fscache;

		BUG_ON(!cookie);

		if (PageFsCache(page)) {
		dfprintk(FSCACHE, "NFS: fscache releasepage (0x%p/0x%p/0x%p)\n",
		cookie, page, nfsi);