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yaml
---
r: 23862
b: refs/heads/master
c: ca62b9c
h: refs/heads/master
v: v3
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Trond Myklebust authored and Trond Myklebust committed Mar 20, 2006
1 parent 4e261da commit ea65557
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Showing 2 changed files with 25 additions and 21 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 755c1e20cd2ad56e5c567fa05769eb98a3eef72b
refs/heads/master: ca62b9c3f7b8679ada4de94d2ab7098c6860c3d7
44 changes: 24 additions & 20 deletions trunk/fs/nfs/inode.c
Original file line number Diff line number Diff line change
Expand Up @@ -1299,34 +1299,35 @@ static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fat
if ((fattr->valid & NFS_ATTR_FATTR) == 0)
return 0;

/* Has the inode gone and changed behind our back? */
if (nfsi->fileid != fattr->fileid
|| (inode->i_mode & S_IFMT) != (fattr->mode & S_IFMT)) {
return -EIO;
}

/* Are we in the process of updating data on the server? */
data_unstable = nfs_caches_unstable(inode);

/* Do atomic weak cache consistency updates */
nfs_wcc_update_inode(inode, fattr);

if ((fattr->valid & NFS_ATTR_FATTR_V4) != 0 &&
nfsi->change_attr != fattr->change_attr) {
if ((fattr->valid & NFS_ATTR_FATTR_V4) != 0) {
if (nfsi->change_attr == fattr->change_attr)
goto out;
nfsi->cache_validity |= NFS_INO_INVALID_ATTR;
if (!data_unstable)
nfsi->cache_validity |= NFS_INO_REVAL_PAGECACHE;
}

/* Has the inode gone and changed behind our back? */
if (nfsi->fileid != fattr->fileid
|| (inode->i_mode & S_IFMT) != (fattr->mode & S_IFMT)) {
return -EIO;
}

cur_size = i_size_read(inode);
new_isize = nfs_size_to_loff_t(fattr->size);

/* 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;
}

cur_size = i_size_read(inode);
new_isize = nfs_size_to_loff_t(fattr->size);
if (cur_size != new_isize) {
nfsi->cache_validity |= NFS_INO_INVALID_ATTR;
if (nfsi->npages == 0)
Expand All @@ -1343,6 +1344,7 @@ static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fat
if (inode->i_nlink != fattr->nlink)
nfsi->cache_validity |= NFS_INO_INVALID_ATTR;

out:
if (!timespec_equal(&inode->i_atime, &fattr->atime))
nfsi->cache_validity |= NFS_INO_INVALID_ATIME;

Expand Down Expand Up @@ -1481,15 +1483,6 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
nfsi->cache_change_attribute = jiffies;
}

if ((fattr->valid & NFS_ATTR_FATTR_V4)
&& nfsi->change_attr != fattr->change_attr) {
dprintk("NFS: change_attr change on server for file %s/%ld\n",
inode->i_sb->s_id, inode->i_ino);
nfsi->change_attr = fattr->change_attr;
invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
nfsi->cache_change_attribute = jiffies;
}

/* If ctime has changed we should definitely clear access+acl caches */
if (!timespec_equal(&inode->i_ctime, &fattr->ctime)) {
invalid |= NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
Expand Down Expand Up @@ -1519,6 +1512,17 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
inode->i_blksize = fattr->du.nfs2.blocksize;
}

if ((fattr->valid & NFS_ATTR_FATTR_V4)) {
if (nfsi->change_attr != fattr->change_attr) {
dprintk("NFS: change_attr change on server for file %s/%ld\n",
inode->i_sb->s_id, inode->i_ino);
nfsi->change_attr = fattr->change_attr;
invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
nfsi->cache_change_attribute = jiffies;
} else
invalid &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA);
}

/* Update attrtimeo value if we're out of the unstable period */
if (invalid & NFS_INO_INVALID_ATTR) {
nfsi->attrtimeo = NFS_MINATTRTIMEO(inode);
Expand Down

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