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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-05-25 01:40:55 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-06-09 09:34:08 -0400 |
| commit | f1bb0b92ba2cdfffe6e437f7a7da53138cf08d52 (patch) | |
| tree | 2870bd8f3e08b3b1b387f31713d965c3fcb7863f /fs/nfs/inode.c | |
| parent | 0d0b5cb36faf7002a11736032313f06d6f3d881c (diff) | |
| download | blackbird-op-linux-f1bb0b92ba2cdfffe6e437f7a7da53138cf08d52.tar.gz blackbird-op-linux-f1bb0b92ba2cdfffe6e437f7a7da53138cf08d52.zip | |
NFS: Fix page cache revalidation
Fix up a bug in the handling of NFS_INO_REVAL_PAGECACHE: make sure that
nfs_update_inode() clears it when we're sure we're not racing with other
updates.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/inode.c')
| -rw-r--r-- | fs/nfs/inode.c | 19 |
1 files changed, 6 insertions, 13 deletions
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index 4f12c57456f4..eddd0e982d23 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -1406,18 +1406,12 @@ static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fat nfs_wcc_update_inode(inode, fattr); if ((fattr->valid & NFS_ATTR_FATTR_V4) != 0 && - nfsi->change_attr != fattr->change_attr) { - nfsi->cache_validity |= NFS_INO_INVALID_ATTR; - if (!data_unstable) - nfsi->cache_validity |= NFS_INO_REVAL_PAGECACHE; - } + nfsi->change_attr != fattr->change_attr) + nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE; /* Verify a few of the more important attributes */ - if (!timespec_equal(&inode->i_mtime, &fattr->mtime)) { - nfsi->cache_validity |= NFS_INO_INVALID_ATTR; - if (!data_unstable) - nfsi->cache_validity |= NFS_INO_REVAL_PAGECACHE; - } + if (!timespec_equal(&inode->i_mtime, &fattr->mtime)) + nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE; cur_size = i_size_read(inode); new_isize = nfs_size_to_loff_t(fattr->size); @@ -1459,7 +1453,6 @@ int nfs_refresh_inode(struct inode *inode, struct nfs_fattr *fattr) if ((fattr->valid & NFS_ATTR_FATTR) == 0) return 0; spin_lock(&inode->i_lock); - nfsi->cache_validity &= ~NFS_INO_REVAL_PAGECACHE; if (time_after(fattr->time_start, nfsi->last_updated)) status = nfs_update_inode(inode, fattr); else @@ -1484,7 +1477,7 @@ int nfs_post_op_update_inode(struct inode *inode, struct nfs_fattr *fattr) spin_lock(&inode->i_lock); if (unlikely((fattr->valid & NFS_ATTR_FATTR) == 0)) { - nfsi->cache_validity |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS; + nfsi->cache_validity |= NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE; goto out; } status = nfs_update_inode(inode, fattr); @@ -1534,7 +1527,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) /* Are we racing with known updates of the metadata on the server? */ data_stable = nfs_verify_change_attribute(inode, fattr->time_start); if (data_stable) - nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ATIME); + nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE|NFS_INO_INVALID_ATIME); /* Do atomic weak cache consistency updates */ nfs_wcc_update_inode(inode, fattr); |
