rpms/kernel/F-7 linux-2.6-nfs-close-to-open.patch, NONE, 1.1 kernel-2.6.spec, 1.3433, 1.3434

[Dave Jones (davej)]

Author: davej

Update of /cvs/pkgs/rpms/kernel/F-7
In directory cvs-int.fedora.redhat.com:/tmp/cvs-serv32438

Modified Files:
	kernel-2.6.spec 
Added Files:
	linux-2.6-nfs-close-to-open.patch 
Log Message:
NFSv4: Ensure that we wait for the CLOSE request to complete (#439095)

linux-2.6-nfs-close-to-open.patch:

--- NEW FILE linux-2.6-nfs-close-to-open.patch ---
From: Trond Myklebust <Trond.Myklebust at netapp.com>
Date: Thu, 18 Oct 2007 22:03:27 +0000 (-0400)
Subject: NFSv4: Ensure that we wait for the CLOSE request to complete
X-Git-Tag: v2.6.24~1010^2~1
X-Git-Url: http://git.linux-nfs.org/?p=trondmy%2Fnfs-2.6.git;a=commitdiff_plain;h=a49c3c7736a2e77931dabc5bc4a83fb4b2da013e

NFSv4: Ensure that we wait for the CLOSE request to complete

Otherwise, we do end up breaking close-to-open semantics. We also end up
breaking some of the silly-rename tests in Connectathon on some setups.

Please refer to the bug-report at
	http://bugzilla.linux-nfs.org/show_bug.cgi?id=150

Signed-off-by: Trond Myklebust <Trond.Myklebust at netapp.com>
---

diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index d29f90d..b3bb89f 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -131,7 +131,7 @@ nfs_file_release(struct inode *inode, struct file *filp)
 {
 	/* Ensure that dirty pages are flushed out with the right creds */
 	if (filp->f_mode & FMODE_WRITE)
-		filemap_fdatawrite(filp->f_mapping);
+		nfs_wb_all(filp->f_path.dentry->d_inode);
 	nfs_inc_stats(inode, NFSIOS_VFSRELEASE);
 	return NFS_PROTO(inode)->file_release(inode, filp);
 }
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 173e294..db5d96d 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -514,7 +514,7 @@ struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx)
 	return ctx;
 }
 
-void put_nfs_open_context(struct nfs_open_context *ctx)
+static void __put_nfs_open_context(struct nfs_open_context *ctx, int wait)
 {
 	struct inode *inode = ctx->path.dentry->d_inode;
 
@@ -522,8 +522,12 @@ void put_nfs_open_context(struct nfs_open_context *ctx)
 		return;
 	list_del(&ctx->list);
 	spin_unlock(&inode->i_lock);
-	if (ctx->state != NULL)
-		nfs4_close_state(&ctx->path, ctx->state, ctx->mode);
+	if (ctx->state != NULL) {
+		if (wait)
+			nfs4_close_sync(&ctx->path, ctx->state, ctx->mode);
+		else
+			nfs4_close_state(&ctx->path, ctx->state, ctx->mode);
+	}
 	if (ctx->cred != NULL)
 		put_rpccred(ctx->cred);
 	dput(ctx->path.dentry);
@@ -531,6 +535,16 @@ void put_nfs_open_context(struct nfs_open_context *ctx)
 	kfree(ctx);
 }
 
+void put_nfs_open_context(struct nfs_open_context *ctx)
+{
+	__put_nfs_open_context(ctx, 0);
+}
+
+static void put_nfs_open_context_sync(struct nfs_open_context *ctx)
+{
+	__put_nfs_open_context(ctx, 1);
+}
+
 /*
  * Ensure that mmap has a recent RPC credential for use when writing out
  * shared pages
@@ -577,7 +591,7 @@ static void nfs_file_clear_open_context(struct file *filp)
 		spin_lock(&inode->i_lock);
 		list_move_tail(&ctx->list, &NFS_I(inode)->open_files);
 		spin_unlock(&inode->i_lock);
-		put_nfs_open_context(ctx);
+		put_nfs_open_context_sync(ctx);
 	}
 }
 
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index d2802b1..a4e3b96 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -178,7 +178,7 @@ extern int nfs4_proc_setclientid(struct nfs_client *, u32, unsigned short, struc
 extern int nfs4_proc_setclientid_confirm(struct nfs_client *, struct rpc_cred *);
 extern int nfs4_proc_async_renew(struct nfs_client *, struct rpc_cred *);
 extern int nfs4_proc_renew(struct nfs_client *, struct rpc_cred *);
-extern int nfs4_do_close(struct path *path, struct nfs4_state *state);
+extern int nfs4_do_close(struct path *path, struct nfs4_state *state, int wait);
 extern struct dentry *nfs4_atomic_open(struct inode *, struct dentry *, struct nameidata *);
 extern int nfs4_open_revalidate(struct inode *, struct dentry *, int, struct nameidata *);
 extern int nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle);
@@ -209,6 +209,7 @@ extern void nfs4_drop_state_owner(struct nfs4_state_owner *);
 extern struct nfs4_state * nfs4_get_open_state(struct inode *, struct nfs4_state_owner *);
 extern void nfs4_put_open_state(struct nfs4_state *);
 extern void nfs4_close_state(struct path *, struct nfs4_state *, mode_t);
+extern void nfs4_close_sync(struct path *, struct nfs4_state *, mode_t);
 extern void nfs4_state_set_mode_locked(struct nfs4_state *, mode_t);
 extern void nfs4_schedule_state_recovery(struct nfs_client *);
 extern void nfs4_put_lock_state(struct nfs4_lock_state *lsp);
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 2cb3b8b..f03d9d5 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1305,7 +1305,7 @@ static const struct rpc_call_ops nfs4_close_ops = {
  *
  * NOTE: Caller must be holding the sp->so_owner semaphore!
  */
-int nfs4_do_close(struct path *path, struct nfs4_state *state)
+int nfs4_do_close(struct path *path, struct nfs4_state *state, int wait)
 {
 	struct nfs_server *server = NFS_SERVER(state->inode);
 	struct nfs4_closedata *calldata;
@@ -1333,8 +1333,11 @@ int nfs4_do_close(struct path *path, struct nfs4_state *state)
 	task = rpc_run_task(server->client, RPC_TASK_ASYNC, &nfs4_close_ops, calldata);
 	if (IS_ERR(task))
 		return PTR_ERR(task);
+	status = 0;
+	if (wait)
+		status = rpc_wait_for_completion_task(task);
 	rpc_put_task(task);
-	return 0;
+	return status;
 out_free_calldata:
 	kfree(calldata);
 out:
@@ -1365,7 +1368,7 @@ static int nfs4_intent_set_file(struct nameidata *nd, struct path *path, struct
 	}
 	ret = PTR_ERR(filp);
 out_close:
-	nfs4_close_state(path, state, nd->intent.open.flags);
+	nfs4_close_sync(path, state, nd->intent.open.flags);
 	return ret;
 }
 
@@ -1450,7 +1453,7 @@ nfs4_open_revalidate(struct inode *dir, struct dentry *dentry, int openflags, st
 		nfs4_intent_set_file(nd, &path, state);
 		return 1;
 	}
-	nfs4_close_state(&path, state, openflags);
+	nfs4_close_sync(&path, state, openflags);
 out_drop:
 	d_drop(dentry);
 	return 0;
@@ -1904,7 +1907,7 @@ nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
 	if (status == 0 && (nd->flags & LOOKUP_OPEN) != 0)
 		status = nfs4_intent_set_file(nd, &path, state);
 	else
-		nfs4_close_state(&path, state, flags);
+		nfs4_close_sync(&path, state, flags);
 out:
 	return status;
 }
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index bfb3626..23a9a36 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -425,7 +425,7 @@ void nfs4_put_open_state(struct nfs4_state *state)
 /*
  * Close the current file.
  */
-void nfs4_close_state(struct path *path, struct nfs4_state *state, mode_t mode)
+static void __nfs4_close(struct path *path, struct nfs4_state *state, mode_t mode, int wait)
 {
 	struct nfs4_state_owner *owner = state->owner;
 	int call_close = 0;
@@ -466,7 +466,17 @@ void nfs4_close_state(struct path *path, struct nfs4_state *state, mode_t mode)
 		nfs4_put_open_state(state);
 		nfs4_put_state_owner(owner);
 	} else
-		nfs4_do_close(path, state);
+		nfs4_do_close(path, state, wait);
+}
+
+void nfs4_close_state(struct path *path, struct nfs4_state *state, mode_t mode)
+{
+	__nfs4_close(path, state, mode, 0);
+}
+
+void nfs4_close_sync(struct path *path, struct nfs4_state *state, mode_t mode)
+{
+	__nfs4_close(path, state, mode, 1);
 }
 
 /*


Index: kernel-2.6.spec
===================================================================
RCS file: /cvs/pkgs/rpms/kernel/F-7/kernel-2.6.spec,v
retrieving revision 1.3433
retrieving revision 1.3434
diff -u -r1.3433 -r1.3434
--- kernel-2.6.spec	28 Feb 2008 20:23:37 -0000	1.3433
+++ kernel-2.6.spec	26 Mar 2008 22:57:03 -0000	1.3434
@@ -649,6 +649,8 @@
 Patch782: linux-2.6-usb-storage-always-set-the-allow_restart-flag.patch
 Patch783: linux-2.6-usb-huawei-fix-init-in-modem-mode.patch
 
+Patch790: linux-2.6-nfs-close-to-open.patch
+
 Patch800: linux-2.6-wakeups-hdaps.patch
 Patch801: linux-2.6-wakeups.patch
 
@@ -1389,6 +1391,9 @@
 ApplyPatch linux-2.6-acpi-dont-init-ec-early-with-no-ini.patch
 ApplyPatch linux-2.6-acpi_ec_early_init_fix.patch
 
+# NFSv4: Ensure that we wait for the CLOSE request to complete
+ApplyPatch linux-2.6-nfs-close-to-open.patch
+
 # Fix excessive wakeups
 # Make hdaps timer only tick when in use.
 ApplyPatch linux-2.6-wakeups-hdaps.patch
@@ -2336,6 +2341,9 @@
 %endif
 
 %changelog
+* Wed Mar 26 2008 Dave Jones <davej at redhat.com>
+- NFSv4: Ensure that we wait for the CLOSE request to complete (#439095)
+
 * Thu Feb 28 2008 Kyle McMartin <kmcmartin at redhat.com> 2.6.23.17-81
 - Linux 2.6.23.17