From: Trond Myklebust Date: Fri, 28 Sep 2007 14:20:12 -0400 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 --- fs/nfs/inode.c | 4 ---- include/linux/nfs_fs.h | 2 +- 2 files changed, 1 insertions(+), 5 deletions(-) diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index 0d98074..ed035a8 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 5b42fef..f451613 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; } /*