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Subject[PATCH v21 042/100] c/r: add generic '->checkpoint' f_op to ext fses
Date
From: Dave Hansen <dave@linux.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[ckpt-v21]:
- Put file_ops->checkpoint under CONFIG_CHECKPOINT
Changelog[ckpt-v19-rc3]:
- Rebase to kernel 2.6.33 (ext2)
Changelog[v1]:
- [Serge Hallyn] Use filemap_checkpoint() in ext4_file_vm_ops

Cc: linux-ext4@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
Signed-off-by: Oren Laadan <orenl@cs.columbia.edu>
Acked-by: Serge E. Hallyn <serue@us.ibm.com>
Tested-by: Serge E. Hallyn <serue@us.ibm.com>
---
fs/ext2/dir.c | 3 +++
fs/ext2/file.c | 6 ++++++
fs/ext3/dir.c | 3 +++
fs/ext3/file.c | 3 +++
fs/ext4/dir.c | 3 +++
fs/ext4/file.c | 6 ++++++
6 files changed, 24 insertions(+), 0 deletions(-)
diff --git a/fs/ext2/dir.c b/fs/ext2/dir.c
index 7516957..cdcb065 100644
--- a/fs/ext2/dir.c
+++ b/fs/ext2/dir.c
@@ -722,4 +722,7 @@ const struct file_operations ext2_dir_operations = {
.compat_ioctl = ext2_compat_ioctl,
#endif
.fsync = ext2_fsync,
+#ifdef CONFIG_CHECKPOINT
+ .checkpoint = generic_file_checkpoint,
+#endif
};
diff --git a/fs/ext2/file.c b/fs/ext2/file.c
index 5d198d0..975ea9c 100644
--- a/fs/ext2/file.c
+++ b/fs/ext2/file.c
@@ -76,6 +76,9 @@ const struct file_operations ext2_file_operations = {
.fsync = ext2_fsync,
.splice_read = generic_file_splice_read,
.splice_write = generic_file_splice_write,
+#ifdef CONFIG_CHECKPOINT
+ .checkpoint = generic_file_checkpoint,
+#endif /* CONFIG_CHECKPOINT */
};

#ifdef CONFIG_EXT2_FS_XIP
@@ -91,6 +94,9 @@ const struct file_operations ext2_xip_file_operations = {
.open = dquot_file_open,
.release = ext2_release_file,
.fsync = ext2_fsync,
+#ifdef CONFIG_CHECKPOINT
+ .checkpoint = generic_file_checkpoint,
+#endif /* CONFIG_CHECKPOINT */
};
#endif

diff --git a/fs/ext3/dir.c b/fs/ext3/dir.c
index 373fa90..a4ef201 100644
--- a/fs/ext3/dir.c
+++ b/fs/ext3/dir.c
@@ -48,6 +48,9 @@ const struct file_operations ext3_dir_operations = {
#endif
.fsync = ext3_sync_file, /* BKL held */
.release = ext3_release_dir,
+#ifdef CONFIG_CHECKPOINT
+ .checkpoint = generic_file_checkpoint,
+#endif
};


diff --git a/fs/ext3/file.c b/fs/ext3/file.c
index f55df0e..2cf4ef2 100644
--- a/fs/ext3/file.c
+++ b/fs/ext3/file.c
@@ -68,6 +68,9 @@ const struct file_operations ext3_file_operations = {
.fsync = ext3_sync_file,
.splice_read = generic_file_splice_read,
.splice_write = generic_file_splice_write,
+#ifdef CONFIG_CHECKPOINT
+ .checkpoint = generic_file_checkpoint,
+#endif
};

const struct inode_operations ext3_file_inode_operations = {
diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
index 86cb6d8..9681c2f 100644
--- a/fs/ext4/dir.c
+++ b/fs/ext4/dir.c
@@ -48,6 +48,9 @@ const struct file_operations ext4_dir_operations = {
#endif
.fsync = ext4_sync_file,
.release = ext4_release_dir,
+#ifdef CONFIG_CHECKPOINT
+ .checkpoint = generic_file_checkpoint,
+#endif
};


diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index d0776e4..7c7e120 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -85,6 +85,9 @@ ext4_file_write(struct kiocb *iocb, const struct iovec *iov,
static const 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)
@@ -145,6 +148,9 @@ const struct file_operations ext4_file_operations = {
.fsync = ext4_sync_file,
.splice_read = generic_file_splice_read,
.splice_write = generic_file_splice_write,
+#ifdef CONFIG_CHECKPOINT
+ .checkpoint = generic_file_checkpoint,
+#endif
};

const struct inode_operations ext4_file_inode_operations = {
--
1.6.3.3


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