diff options
| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2005-06-22 17:16:30 +0000 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2005-06-22 16:07:37 -0400 |
| commit | fe51beecc55d0b0dce289e4758e7c529a642f63e (patch) | |
| tree | 9790d77fafbb52b9237ecd65c57002e87f914e12 /fs/nfs/inode.c | |
| parent | 7d52e86274e09fce8ac8f963e3605a84d0a305a7 (diff) | |
[PATCH] NFS: Ensure that fstat() always returns the correct mtime
Even if the file is open for writes.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/inode.c')
| -rw-r--r-- | fs/nfs/inode.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index a3922f4cc0a..4f545f382ba 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -620,9 +620,9 @@ nfs_zap_caches(struct inode *inode) memset(NFS_COOKIEVERF(inode), 0, sizeof(NFS_COOKIEVERF(inode))); if (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)) - nfsi->flags |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL; + nfsi->flags |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL|NFS_INO_REVAL_PAGECACHE; else - nfsi->flags |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL; + nfsi->flags |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL|NFS_INO_REVAL_PAGECACHE; } static void nfs_zap_acl_cache(struct inode *inode) @@ -1055,6 +1055,7 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode) goto out; } flags = nfsi->flags; + nfsi->flags &= ~NFS_INO_REVAL_PAGECACHE; /* * We may need to keep the attributes marked as invalid if * we raced with nfs_end_attr_update(). @@ -1187,8 +1188,11 @@ int nfs_refresh_inode(struct inode *inode, struct nfs_fattr *fattr) if ((fattr->valid & NFS_ATTR_PRE_CHANGE) != 0 && nfsi->change_attr == fattr->pre_change_attr) nfsi->change_attr = fattr->change_attr; - if (!data_unstable && nfsi->change_attr != fattr->change_attr) + if (nfsi->change_attr != fattr->change_attr) { nfsi->flags |= NFS_INO_INVALID_ATTR; + if (!data_unstable) + nfsi->flags |= NFS_INO_REVAL_PAGECACHE; + } } if ((fattr->valid & NFS_ATTR_FATTR) == 0) @@ -1211,12 +1215,16 @@ int nfs_refresh_inode(struct inode *inode, struct nfs_fattr *fattr) } /* Verify a few of the more important attributes */ - if (!data_unstable) { - if (!timespec_equal(&inode->i_mtime, &fattr->mtime) - || cur_size != new_isize) - nfsi->flags |= NFS_INO_INVALID_ATTR; - } else if (new_isize != cur_size && nfsi->npages == 0) + if (!timespec_equal(&inode->i_mtime, &fattr->mtime)) { nfsi->flags |= NFS_INO_INVALID_ATTR; + if (!data_unstable) + nfsi->flags |= NFS_INO_REVAL_PAGECACHE; + } + if (cur_size != new_isize) { + nfsi->flags |= NFS_INO_INVALID_ATTR; + if (nfsi->npages == 0) + nfsi->flags |= NFS_INO_REVAL_PAGECACHE; + } /* Have any file permissions changed? */ if ((inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO) |