linux-kernel - [PATCH v18 39/80] c/r: add generic '->checkpoint' f

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Message-Id: <1253749920-18673-40-git-send-email-orenl@librato.com>
Date:	Wed, 23 Sep 2009 19:51:19 -0400
From:	Oren Laadan <orenl@...rato.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Linus Torvalds <torvalds@...l.org>,
	containers@...ts.linux-foundation.org,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	linux-api@...r.kernel.org, Serge Hallyn <serue@...ibm.com>,
	Ingo Molnar <mingo@...e.hu>,
	Pavel Emelyanov <xemul@...nvz.org>,
	Dave Hansen <dave@...ux.vnet.ibm.com>,
	Oren Laadan <orenl@...columbia.edu>
Subject: [PATCH v18 39/80] c/r: add generic '->checkpoint' f_op to ext fses

From: Dave Hansen <dave@...ux.vnet.ibm.com>

This marks ext[234] as being checkpointable.  There will be many
more to do this to, but this is a start.

Changelog[v1]:
  - [Serge Hallyn] Use filemap_checkpoint() in ext4_file_vm_ops

Signed-off-by: Dave Hansen <dave@...ux.vnet.ibm.com>
Signed-off-by: Oren Laadan <orenl@...columbia.edu>
---
 fs/ext2/dir.c  |    1 +
 fs/ext2/file.c |    2 ++
 fs/ext3/dir.c  |    1 +
 fs/ext3/file.c |    1 +
 fs/ext4/dir.c  |    1 +
 fs/ext4/file.c |    4 ++++
 6 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/fs/ext2/dir.c b/fs/ext2/dir.c
index 6cde970..78e9157 100644
--- a/fs/ext2/dir.c
+++ b/fs/ext2/dir.c
@@ -722,4 +722,5 @@ const struct file_operations ext2_dir_operations = {
 	.compat_ioctl	= ext2_compat_ioctl,
 #endif
 	.fsync		= simple_fsync,
+	.checkpoint	= generic_file_checkpoint,
 };
diff --git a/fs/ext2/file.c b/fs/ext2/file.c
index 2b9e47d..edbc3dc 100644
--- a/fs/ext2/file.c
+++ b/fs/ext2/file.c
@@ -58,6 +58,7 @@ const struct file_operations ext2_file_operations = {
 	.fsync		= simple_fsync,
 	.splice_read	= generic_file_splice_read,
 	.splice_write	= generic_file_splice_write,
+	.checkpoint	= generic_file_checkpoint,
 };
 
 #ifdef CONFIG_EXT2_FS_XIP
@@ -73,6 +74,7 @@ const struct file_operations ext2_xip_file_operations = {
 	.open		= generic_file_open,
 	.release	= ext2_release_file,
 	.fsync		= simple_fsync,
+	.checkpoint	= generic_file_checkpoint,
 };
 #endif
 
diff --git a/fs/ext3/dir.c b/fs/ext3/dir.c
index 373fa90..65f98af 100644
--- a/fs/ext3/dir.c
+++ b/fs/ext3/dir.c
@@ -48,6 +48,7 @@ const struct file_operations ext3_dir_operations = {
 #endif
 	.fsync		= ext3_sync_file,	/* BKL held */
 	.release	= ext3_release_dir,
+	.checkpoint	= generic_file_checkpoint,
 };
 
 
diff --git a/fs/ext3/file.c b/fs/ext3/file.c
index 5b49704..a421e07 100644
--- a/fs/ext3/file.c
+++ b/fs/ext3/file.c
@@ -126,6 +126,7 @@ const struct file_operations ext3_file_operations = {
 	.fsync		= ext3_sync_file,
 	.splice_read	= generic_file_splice_read,
 	.splice_write	= generic_file_splice_write,
+	.checkpoint	= generic_file_checkpoint,
 };
 
 const struct inode_operations ext3_file_inode_operations = {
diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
index 9dc9316..f69404c 100644
--- a/fs/ext4/dir.c
+++ b/fs/ext4/dir.c
@@ -48,6 +48,7 @@ const struct file_operations ext4_dir_operations = {
 #endif
 	.fsync		= ext4_sync_file,
 	.release	= ext4_release_dir,
+	.checkpoint	= generic_file_checkpoint,
 };
 
 
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 3f1873f..cdac137 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -133,6 +133,9 @@ force_commit:
 static struct vm_operations_struct ext4_file_vm_ops = {
 	.fault		= filemap_fault,
 	.page_mkwrite   = ext4_page_mkwrite,
+#ifdef CONFIG_CHECKPOINT
+	.checkpoint	= filemap_checkpoint,
+#endif
 };
 
 static int ext4_file_mmap(struct file *file, struct vm_area_struct *vma)
@@ -195,6 +198,7 @@ const struct file_operations ext4_file_operations = {
 	.fsync		= ext4_sync_file,
 	.splice_read	= generic_file_splice_read,
 	.splice_write	= generic_file_splice_write,
+	.checkpoint	= generic_file_checkpoint,
 };
 
 const struct inode_operations ext4_file_inode_operations = {
-- 
1.6.0.4

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