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NFS: nfs_refresh_inode should clear cache_validity flags on success

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If the cached attributes match the ones supplied in the fattr, then assume
we've revalidated the inode.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2007-10-08 14:26:13 -04:00
parent 40d2470409
commit 2a3f5fd459
1 changed files with 17 additions and 18 deletions
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35
fs/nfs/inode.c
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@ -790,6 +790,7 @@ static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fat
{ {
struct nfs_inode *nfsi = NFS_I(inode); struct nfs_inode *nfsi = NFS_I(inode);
loff_t cur_size, new_isize; loff_t cur_size, new_isize;
unsigned long invalid = 0;
/* Has the inode gone and changed behind our back? */ /* Has the inode gone and changed behind our back? */
@ -803,29 +804,36 @@ static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fat
if ((fattr->valid & NFS_ATTR_FATTR_V4) != 0 && if ((fattr->valid & NFS_ATTR_FATTR_V4) != 0 &&
nfsi->change_attr != fattr->change_attr) nfsi->change_attr != fattr->change_attr)
nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE; invalid |= NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE;
/* Verify a few of the more important attributes */ /* Verify a few of the more important attributes */
if (!timespec_equal(&inode->i_mtime, &fattr->mtime)) if (!timespec_equal(&inode->i_mtime, &fattr->mtime))
nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE; invalid |= NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE;
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 && nfsi->npages == 0) if (cur_size != new_isize && nfsi->npages == 0)
nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE; invalid |= NFS_INO_INVALID_ATTR|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)
|| inode->i_uid != fattr->uid || inode->i_uid != fattr->uid
|| inode->i_gid != fattr->gid) || inode->i_gid != fattr->gid)
nfsi->cache_validity |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS | NFS_INO_INVALID_ACL; invalid |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS | NFS_INO_INVALID_ACL;
/* Has the link count changed? */ /* Has the link count changed? */
if (inode->i_nlink != fattr->nlink) if (inode->i_nlink != fattr->nlink)
nfsi->cache_validity |= NFS_INO_INVALID_ATTR; invalid |= NFS_INO_INVALID_ATTR;
if (!timespec_equal(&inode->i_atime, &fattr->atime)) if (!timespec_equal(&inode->i_atime, &fattr->atime))
nfsi->cache_validity |= NFS_INO_INVALID_ATIME; invalid |= NFS_INO_INVALID_ATIME;
if (invalid != 0)
nfsi->cache_validity |= invalid;
else
nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR
| NFS_INO_INVALID_ATIME
| NFS_INO_REVAL_PAGECACHE);
nfsi->read_cache_jiffies = fattr->time_start; nfsi->read_cache_jiffies = fattr->time_start;
return 0; return 0;
@ -876,21 +884,12 @@ int nfs_post_op_update_inode(struct inode *inode, struct nfs_fattr *fattr)
{ {
struct nfs_inode *nfsi = NFS_I(inode); struct nfs_inode *nfsi = NFS_I(inode);
if (fattr->valid & NFS_ATTR_FATTR) {
if (S_ISDIR(inode->i_mode)) {
spin_lock(&inode->i_lock);
nfsi->cache_validity |= NFS_INO_INVALID_DATA;
spin_unlock(&inode->i_lock);
}
return nfs_refresh_inode(inode, fattr);
}
spin_lock(&inode->i_lock); spin_lock(&inode->i_lock);
nfsi->cache_validity |= NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE; nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE;
if (S_ISDIR(inode->i_mode)) if (S_ISDIR(inode->i_mode))
nfsi->cache_validity |= NFS_INO_INVALID_DATA; nfsi->cache_validity |= NFS_INO_INVALID_DATA;
spin_unlock(&inode->i_lock); spin_unlock(&inode->i_lock);
return 0; return nfs_refresh_inode(inode, fattr);
} }
/** /**
@ -938,7 +937,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
struct nfs_server *server; struct nfs_server *server;
struct nfs_inode *nfsi = NFS_I(inode); struct nfs_inode *nfsi = NFS_I(inode);
loff_t cur_isize, new_isize; loff_t cur_isize, new_isize;
unsigned int invalid = 0; unsigned long invalid = 0;
unsigned long now = jiffies; unsigned long now = jiffies;
dfprintk(VFS, "NFS: %s(%s/%ld ct=%d info=0x%x)\n", dfprintk(VFS, "NFS: %s(%s/%ld ct=%d info=0x%x)\n",