NFS: Remove bogus check of cache_change_attribute in nfs_update_inode

Remove the bogus 'data_stable' check in nfs_update_inode. The
cache_change_attribute tells you if the directory changed on the server,
and should have nothing to do with the file length.

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

1 files changed, 3 insertions, 12 deletions

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 185cfd09d7f7..23feb9e3d8b0 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -942,7 +942,6 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
         loff_t cur_isize, new_isize;
         unsigned int    invalid = 0;
         unsigned long now = jiffies;
-        int data_stable;
 
         dfprintk(VFS, "NFS: %s(%s/%ld ct=%d info=0x%x)\n",
                         __FUNCTION__, inode->i_sb->s_id, inode->i_ino,
@@ -969,8 +968,6 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
         nfsi->read_cache_jiffies = fattr->time_start;
         nfsi->last_updated = now;
 
-        /* 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
                         | NFS_INO_REVAL_PAGECACHE);
 
@@ -1002,15 +999,9 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
         new_isize = nfs_size_to_loff_t(fattr->size);
         cur_isize = i_size_read(inode);
         if (new_isize != cur_isize) {
-                /* Do we perhaps have any outstanding writes? */
-                if (nfsi->npages == 0) {
-                        /* No, but did we race with nfs_end_data_update()? */
-                        if (data_stable) {
-                                inode->i_size = new_isize;
-                                invalid |= NFS_INO_INVALID_DATA;
-                        }
-                        invalid |= NFS_INO_INVALID_ATTR;
-                } else if (new_isize > cur_isize) {
+                /* Do we perhaps have any outstanding writes, or has
+                 * the file grown beyond our last write? */
+                if (nfsi->npages == 0 || new_isize > cur_isize) {
                         inode->i_size = new_isize;
                         invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA;
                 }