X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=fs%2Fnfs%2Finode.c;h=d83498282837168fc9d1256f4f72c09f8b33ca40;hb=190ff5b3a168b666925897558998b5d97fec8731;hp=bc9376ca86cd28ea645ea38b889ac455faf0b141;hpb=db1a19b38f3a85f475b4ad716c71be133d8ca48e;p=powerpc.git

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index bc9376ca86..d834982828 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -55,7 +55,7 @@ static int nfs_update_inode(struct inode *, struct nfs_fattr *);
 
 static void nfs_zap_acl_cache(struct inode *);
 
-static kmem_cache_t * nfs_inode_cachep;
+static struct kmem_cache * nfs_inode_cachep;
 
 static inline unsigned long
 nfs_fattr_to_ino_t(struct nfs_fattr *fattr)
@@ -131,6 +131,15 @@ void nfs_zap_caches(struct inode *inode)
 	spin_unlock(&inode->i_lock);
 }
 
+void nfs_zap_mapping(struct inode *inode, struct address_space *mapping)
+{
+	if (mapping->nrpages != 0) {
+		spin_lock(&inode->i_lock);
+		NFS_I(inode)->cache_validity |= NFS_INO_INVALID_DATA;
+		spin_unlock(&inode->i_lock);
+	}
+}
+
 static void nfs_zap_acl_cache(struct inode *inode)
 {
 	void (*clear_acl_cache)(struct inode *);
@@ -413,7 +422,7 @@ int nfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
 	int err;
 
 	/* Flush out writes to the server in order to update c/mtime */
-	nfs_sync_inode_wait(inode, 0, 0, FLUSH_NOCOMMIT);
+	nfs_sync_mapping_range(inode->i_mapping, 0, 0, FLUSH_NOCOMMIT);
 
 	/*
 	 * We may force a getattr if the user cares about atime.
@@ -487,7 +496,7 @@ void put_nfs_open_context(struct nfs_open_context *ctx)
  */
 static void nfs_file_set_open_context(struct file *filp, struct nfs_open_context *ctx)
 {
-	struct inode *inode = filp->f_dentry->d_inode;
+	struct inode *inode = filp->f_path.dentry->d_inode;
 	struct nfs_inode *nfsi = NFS_I(inode);
 
 	filp->private_data = get_nfs_open_context(ctx);
@@ -519,7 +528,7 @@ struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_c
 
 static void nfs_file_clear_open_context(struct file *filp)
 {
-	struct inode *inode = filp->f_dentry->d_inode;
+	struct inode *inode = filp->f_path.dentry->d_inode;
 	struct nfs_open_context *ctx = (struct nfs_open_context *)filp->private_data;
 
 	if (ctx) {
@@ -542,7 +551,7 @@ int nfs_open(struct inode *inode, struct file *filp)
 	cred = rpcauth_lookupcred(NFS_CLIENT(inode)->cl_auth, 0);
 	if (IS_ERR(cred))
 		return PTR_ERR(cred);
-	ctx = alloc_nfs_open_context(filp->f_vfsmnt, filp->f_dentry, cred);
+	ctx = alloc_nfs_open_context(filp->f_path.mnt, filp->f_path.dentry, cred);
 	put_rpccred(cred);
 	if (ctx == NULL)
 		return -ENOMEM;
@@ -574,7 +583,7 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
 
 	nfs_inc_stats(inode, NFSIOS_INODEREVALIDATE);
 	lock_kernel();
-	if (!inode || is_bad_inode(inode))
+	if (is_bad_inode(inode))
  		goto out_nowait;
 	if (NFS_STALE(inode))
  		goto out_nowait;
@@ -656,41 +665,87 @@ int nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
 	return __nfs_revalidate_inode(server, inode);
 }
 
+static int nfs_invalidate_mapping_nolock(struct inode *inode, struct address_space *mapping)
+{
+	struct nfs_inode *nfsi = NFS_I(inode);
+	
+	if (mapping->nrpages != 0) {
+		int ret = invalidate_inode_pages2(mapping);
+		if (ret < 0)
+			return ret;
+	}
+	spin_lock(&inode->i_lock);
+	nfsi->cache_validity &= ~NFS_INO_INVALID_DATA;
+	if (S_ISDIR(inode->i_mode)) {
+		memset(nfsi->cookieverf, 0, sizeof(nfsi->cookieverf));
+		/* This ensures we revalidate child dentries */
+		nfsi->cache_change_attribute = jiffies;
+	}
+	spin_unlock(&inode->i_lock);
+	nfs_inc_stats(inode, NFSIOS_DATAINVALIDATE);
+	dfprintk(PAGECACHE, "NFS: (%s/%Ld) data cache invalidated\n",
+			inode->i_sb->s_id, (long long)NFS_FILEID(inode));
+	return 0;
+}
+
+static int nfs_invalidate_mapping(struct inode *inode, struct address_space *mapping)
+{
+	int ret = 0;
+
+	mutex_lock(&inode->i_mutex);
+	if (NFS_I(inode)->cache_validity & NFS_INO_INVALID_DATA) {
+		ret = nfs_sync_mapping(mapping);
+		if (ret == 0)
+			ret = nfs_invalidate_mapping_nolock(inode, mapping);
+	}
+	mutex_unlock(&inode->i_mutex);
+	return ret;
+}
+
 /**
- * nfs_revalidate_mapping - Revalidate the pagecache
+ * nfs_revalidate_mapping_nolock - Revalidate the pagecache
  * @inode - pointer to host inode
  * @mapping - pointer to mapping
  */
-int nfs_revalidate_mapping(struct inode *inode, struct address_space *mapping)
+int nfs_revalidate_mapping_nolock(struct inode *inode, struct address_space *mapping)
 {
 	struct nfs_inode *nfsi = NFS_I(inode);
 	int ret = 0;
 
-	if (NFS_STALE(inode))
-		ret = -ESTALE;
 	if ((nfsi->cache_validity & NFS_INO_REVAL_PAGECACHE)
-			|| nfs_attribute_timeout(inode))
+			|| nfs_attribute_timeout(inode) || NFS_STALE(inode)) {
 		ret = __nfs_revalidate_inode(NFS_SERVER(inode), inode);
+		if (ret < 0)
+			goto out;
+	}
+	if (nfsi->cache_validity & NFS_INO_INVALID_DATA)
+		ret = nfs_invalidate_mapping_nolock(inode, mapping);
+out:
+	return ret;
+}
 
-	if (nfsi->cache_validity & NFS_INO_INVALID_DATA) {
-		nfs_inc_stats(inode, NFSIOS_DATAINVALIDATE);
-		if (S_ISREG(inode->i_mode))
-			nfs_sync_mapping(mapping);
-		invalidate_inode_pages2(mapping);
-
-		spin_lock(&inode->i_lock);
-		nfsi->cache_validity &= ~NFS_INO_INVALID_DATA;
-		if (S_ISDIR(inode->i_mode)) {
-			memset(nfsi->cookieverf, 0, sizeof(nfsi->cookieverf));
-			/* This ensures we revalidate child dentries */
-			nfsi->cache_change_attribute = jiffies;
-		}
-		spin_unlock(&inode->i_lock);
+/**
+ * nfs_revalidate_mapping - Revalidate the pagecache
+ * @inode - pointer to host inode
+ * @mapping - pointer to mapping
+ *
+ * This version of the function will take the inode->i_mutex and attempt to
+ * flush out all dirty data if it needs to invalidate the page cache.
+ */
+int nfs_revalidate_mapping(struct inode *inode, struct address_space *mapping)
+{
+	struct nfs_inode *nfsi = NFS_I(inode);
+	int ret = 0;
 
-		dfprintk(PAGECACHE, "NFS: (%s/%Ld) data cache invalidated\n",
-				inode->i_sb->s_id,
-				(long long)NFS_FILEID(inode));
+	if ((nfsi->cache_validity & NFS_INO_REVAL_PAGECACHE)
+			|| nfs_attribute_timeout(inode) || NFS_STALE(inode)) {
+		ret = __nfs_revalidate_inode(NFS_SERVER(inode), inode);
+		if (ret < 0)
+			goto out;
 	}
+	if (nfsi->cache_validity & NFS_INO_INVALID_DATA)
+		ret = nfs_invalidate_mapping(inode, mapping);
+out:
 	return ret;
 }
 
@@ -1062,7 +1117,7 @@ void nfs4_clear_inode(struct inode *inode)
 struct inode *nfs_alloc_inode(struct super_block *sb)
 {
 	struct nfs_inode *nfsi;
-	nfsi = (struct nfs_inode *)kmem_cache_alloc(nfs_inode_cachep, SLAB_KERNEL);
+	nfsi = (struct nfs_inode *)kmem_cache_alloc(nfs_inode_cachep, GFP_KERNEL);
 	if (!nfsi)
 		return NULL;
 	nfsi->flags = 0UL;
@@ -1093,7 +1148,7 @@ static inline void nfs4_init_once(struct nfs_inode *nfsi)
 #endif
 }
 
-static void init_once(void * foo, kmem_cache_t * cachep, unsigned long flags)
+static void init_once(void * foo, struct kmem_cache * cachep, unsigned long flags)
 {
 	struct nfs_inode *nfsi = (struct nfs_inode *) foo;