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提交 fb374d24 编写于 作者: T Trond Myklebust
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NFS: reduce the number of false cache invalidations. 

Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
上级 c8d149f3
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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 ...@@ -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)
......
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