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NFS: reduce the number of false cache invalidations.

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Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2006-03-20 13:44:08 -05:00
parent c8d149f3db
commit fb374d24f2
1 changed files with 2 additions and 5 deletions
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7
fs/nfs/inode.c
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@ -1328,11 +1328,8 @@ static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fat
cur_size = i_size_read(inode); cur_size = i_size_read(inode);
new_isize = nfs_size_to_loff_t(fattr->size); new_isize = nfs_size_to_loff_t(fattr->size);
if (cur_size != new_isize) { if (cur_size != new_isize && nfsi->npages == 0)
nfsi->cache_validity |= NFS_INO_INVALID_ATTR; nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE;
if (nfsi->npages == 0)
nfsi->cache_validity |= NFS_INO_REVAL_PAGECACHE;
}
/* Have any file permissions changed? */ /* Have any file permissions changed? */
if ((inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO) if ((inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO)