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authorTrond Myklebust <Trond.Myklebust@netapp.com>2007-09-28 20:20:12 +0200
committerTrond Myklebust <Trond.Myklebust@netapp.com>2007-10-09 23:18:46 +0200
commit7957c1418f4b6c66e28d4ac3c4d7a8c19d526c48 (patch)
tree5769b3af76c91866a4ccaa607635c86755239a51
parentNFS: nfs_post_op_update_inode() should call nfs_refresh_inode() (diff)
downloadlinux-7957c1418f4b6c66e28d4ac3c4d7a8c19d526c48.tar.xz
linux-7957c1418f4b6c66e28d4ac3c4d7a8c19d526c48.zip
NFS: fix nfs_verify_change_attribute
We always want to check that the verifier and directory cache_change_attribute match. This also allows us to remove the 'wraparound hack' for the cache_change_attribute. If we're only checking for equality, then we don't care about wraparound issues. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
-rw-r--r--fs/nfs/inode.c4
-rw-r--r--include/linux/nfs_fs.h2
2 files changed, 1 insertions, 5 deletions
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 0d98074d0766..ed035a81eea2 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -972,10 +972,6 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
nfsi->read_cache_jiffies = fattr->time_start;
nfsi->last_updated = now;
- /* Fix a wraparound issue with nfsi->cache_change_attribute */
- if (time_before(now, nfsi->cache_change_attribute))
- nfsi->cache_change_attribute = now - 600*HZ;
-
/* Are we racing with known updates of the metadata on the server? */
data_stable = nfs_verify_change_attribute(inode, fattr->time_start);
nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ATIME
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 5b42fef0baf0..f45161363be2 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -277,7 +277,7 @@ static inline long nfs_save_change_attribute(struct inode *inode)
static inline int nfs_verify_change_attribute(struct inode *inode, unsigned long chattr)
{
return !nfs_caches_unstable(inode)
- && time_after_eq(chattr, NFS_I(inode)->cache_change_attribute);
+ && chattr == NFS_I(inode)->cache_change_attribute;
}
/*