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authorTrond Myklebust <Trond.Myklebust@netapp.com>2008-07-07 13:26:10 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2008-07-08 15:22:40 -0400
commit2aac05a91971fbd1bf6cbed78b8731eb7454b9b7 (patch)
tree1bbbb13b7e4353bc729363582eef95925c523b7b /fs/nfs/dir.c
parent9c0fc4e28b57c5a6da7b58d60f71476c64d457a6 (diff)
NFS: Fix readdir cache invalidation
invalidate_inode_pages2_range() takes page offset arguments, not byte ranges. Another thought is that individual pages might perhaps get evicted by VM pressure, in which case we might perhaps want to re-read not only the evicted page, but all subsequent pages too (in case the server returns more/less data per page so that the alignment of the next entry changes). We should therefore remove the condition that we only do this on page->index==0. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/dir.c')
-rw-r--r--fs/nfs/dir.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 58d43daec084..982a2064fe4c 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -204,7 +204,7 @@ int nfs_readdir_filler(nfs_readdir_descriptor_t *desc, struct page *page)
204 * Note: assumes we have exclusive access to this mapping either 204 * Note: assumes we have exclusive access to this mapping either
205 * through inode->i_mutex or some other mechanism. 205 * through inode->i_mutex or some other mechanism.
206 */ 206 */
207 if (page->index == 0 && invalidate_inode_pages2_range(inode->i_mapping, PAGE_CACHE_SIZE, -1) < 0) { 207 if (invalidate_inode_pages2_range(inode->i_mapping, page->index + 1, -1) < 0) {
208 /* Should never happen */ 208 /* Should never happen */
209 nfs_zap_mapping(inode, inode->i_mapping); 209 nfs_zap_mapping(inode, inode->i_mapping);
210 } 210 }