NFS: Convert cache_change_attribute into a jiffy-based value

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

2 files changed, 5 insertions, 5 deletions

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 65d5ab45ddc5..449df8c8aa31 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1135,7 +1135,7 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
          * We may need to keep the attributes marked as invalid if
          * we raced with nfs_end_attr_update().
          */
-        if (verifier == nfsi->cache_change_attribute)
+        if (time_after_eq(verifier, nfsi->cache_change_attribute))
                 nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ATIME);
         spin_unlock(&inode->i_lock);
 
@@ -1202,7 +1202,7 @@ void nfs_revalidate_mapping(struct inode *inode, struct address_space *mapping)
                 if (S_ISDIR(inode->i_mode)) {
                         memset(nfsi->cookieverf, 0, sizeof(nfsi->cookieverf));
                         /* This ensures we revalidate child dentries */
-                        nfsi->cache_change_attribute++;
+                        nfsi->cache_change_attribute = jiffies;
                 }
                 spin_unlock(&inode->i_lock);
 
@@ -1242,7 +1242,7 @@ void nfs_end_data_update(struct inode *inode)
                         nfsi->cache_validity |= NFS_INO_INVALID_DATA;
                 spin_unlock(&inode->i_lock);
         }
-        nfsi->cache_change_attribute ++;
+        nfsi->cache_change_attribute = jiffies;
         atomic_dec(&nfsi->data_updates);
 }
 
@@ -1391,7 +1391,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
                 /* Do we perhaps have any outstanding writes? */
                 if (nfsi->npages == 0) {
                         /* No, but did we race with nfs_end_data_update()? */
-                        if (verifier  ==  nfsi->cache_change_attribute) {
+                        if (time_after_eq(verifier,  nfsi->cache_change_attribute)) {
                                 inode->i_size = new_isize;
                                 invalid |= NFS_INO_INVALID_DATA;
                         }
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 8120fd68dee5..abf890f5fbfb 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -280,7 +280,7 @@ 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)
-                && chattr == NFS_I(inode)->cache_change_attribute;
+                && time_after_eq(chattr, NFS_I(inode)->cache_change_attribute);
 }
 
 /*