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NFS: Fix a bug in nfs_fscache_release_page()

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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
This commit is contained in:
Trond Myklebust 2010-02-08 09:32:27 -05:00
parent deb0c98c7f
commit 2c1740098c
1 changed files with 4 additions and 5 deletions
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9
fs/nfs/fscache.c
View file

@ -354,12 +354,11 @@ void nfs_fscache_reset_inode_cookie(struct inode *inode)
*/
int nfs_fscache_release_page(struct page *page, gfp_t gfp)
{
struct nfs_inode *nfsi = NFS_I(page->mapping->host);
struct fscache_cookie *cookie = nfsi->fscache;
BUG_ON(!cookie);
if (PageFsCache(page)) {
struct nfs_inode *nfsi = NFS_I(page->mapping->host);
struct fscache_cookie *cookie = nfsi->fscache;
BUG_ON(!cookie);
dfprintk(FSCACHE, "NFS: fscache releasepage (0x%p/0x%p/0x%p)\n",
cookie, page, nfsi);