diff mbox

Btrfs: write_buf is now callable outside send.c

Message ID 1347602661-7576-3-git-send-email-Anand.Jain@oracle.com (mailing list archive)
State New, archived
Headers show

Commit Message

Anand Jain Sept. 14, 2012, 6:04 a.m. UTC 
From: Anand Jain <anand.jain@oracle.com>

Developing service cmds needs it.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
---
 fs/btrfs/send.c |   11 ++++++-----
 fs/btrfs/send.h |    1 +
 2 files changed, 7 insertions(+), 5 deletions(-)
diff mbox

Patch

diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index fb5ffe9..89411b3 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -377,7 +377,7 @@  static struct btrfs_path *alloc_path_for_send(void)
 	return path;
 }
 
-static int write_buf(struct send_ctx *sctx, const void *buf, u32 len)
+int write_buf(struct file *filp, const void *buf, u32 len, loff_t *off)
 {
 	int ret;
 	mm_segment_t old_fs;
@@ -387,8 +387,7 @@  static int write_buf(struct send_ctx *sctx, const void *buf, u32 len)
 	set_fs(KERNEL_DS);
 
 	while (pos < len) {
-		ret = vfs_write(sctx->send_filp, (char *)buf + pos, len - pos,
-				&sctx->send_off);
+		ret = vfs_write(filp, (char *)buf + pos, len - pos, off);
 		/* TODO handle that correctly */
 		/*if (ret == -ERESTARTSYS) {
 			continue;
@@ -544,7 +543,8 @@  static int send_header(struct send_ctx *sctx)
 	strcpy(hdr.magic, BTRFS_SEND_STREAM_MAGIC);
 	hdr.version = cpu_to_le32(BTRFS_SEND_STREAM_VERSION);
 
-	return write_buf(sctx, &hdr, sizeof(hdr));
+	return write_buf(sctx->send_filp, &hdr, sizeof(hdr),
+					&sctx->send_off);
 }
 
 /*
@@ -581,7 +581,8 @@  static int send_cmd(struct send_ctx *sctx)
 	crc = crc32c(0, (unsigned char *)sctx->send_buf, sctx->send_size);
 	hdr->crc = cpu_to_le32(crc);
 
-	ret = write_buf(sctx, sctx->send_buf, sctx->send_size);
+	ret = write_buf(sctx->send_filp, sctx->send_buf, sctx->send_size,
+					&sctx->send_off);
 
 	sctx->total_send_size += sctx->send_size;
 	sctx->cmd_send_size[le16_to_cpu(hdr->cmd)] += sctx->send_size;
diff --git a/fs/btrfs/send.h b/fs/btrfs/send.h
index 9934e94..1bf4f32 100644
--- a/fs/btrfs/send.h
+++ b/fs/btrfs/send.h
@@ -130,4 +130,5 @@  enum {
 
 #ifdef __KERNEL__
 long btrfs_ioctl_send(struct file *mnt_file, void __user *arg);
+int write_buf(struct file *filp, const void *buf, u32 len, loff_t *off);
 #endif