commit 1bcea35597693b3ac1ec1b311cfd42d52972a710
author Anand Jain <anand.jain@oracle.com> Fri Sep 14 00:04:21 2012 -0600
committer Chris Mason <chris.mason@fusionio.com> Thu Oct 04 09:39:55 2012 -0400
tree fa1d8d7888c8a2aee895510f66c92ccd12308b11
parent b4f359ab065b9c6c132124557d23e90e2e8504be

Btrfs: write_buf is now callable outside send.c

Developing service cmds needs it.

Signed-off-by: Anand Jain <anand.jain@oracle.com>

fs/btrfs/send.c

diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index c6ef070..c7beb54 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -386,7 +386,7 @@
 	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;
@@ -396,8 +396,7 @@
 	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;
@@ -553,7 +552,8 @@
 	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);
 }
 
 /*
@@ -590,7 +590,8 @@
 	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;