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From: Omar Sandoval <osandov@osandov.com>
To: linux-btrfs@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org
Subject: [PATCH 9/9] btrfs: send: enable support for stream v2 and compressed writes
Date: Fri, 21 Aug 2020 00:39:59 -0700	[thread overview]
Message-ID: <b34b944803961595435a34f3c09912830f194e00.1597994106.git.osandov@osandov.com> (raw)
In-Reply-To: <cover.1597994106.git.osandov@osandov.com>

From: Omar Sandoval <osandov@fb.com>

Now that the new support is implemented, allow the ioctl to accept the
flags and update the version in sysfs.

Signed-off-by: Omar Sandoval <osandov@fb.com>
---
 fs/btrfs/send.c            | 10 +++++++++-
 fs/btrfs/send.h            |  2 +-
 include/uapi/linux/btrfs.h |  4 +++-
 3 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index df6882b3ab2b..e87dea7bd915 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -670,7 +670,10 @@ static int send_header(struct send_ctx *sctx)
 	struct btrfs_stream_header hdr;
 
 	strcpy(hdr.magic, BTRFS_SEND_STREAM_MAGIC);
-	hdr.version = cpu_to_le32(BTRFS_SEND_STREAM_VERSION);
+	if (sctx->flags & BTRFS_SEND_FLAG_STREAM_V2)
+		hdr.version = cpu_to_le32(2);
+	else
+		hdr.version = cpu_to_le32(1);
 
 	return write_buf(sctx->send_filp, &hdr, sizeof(hdr),
 					&sctx->send_off);
@@ -7315,6 +7318,11 @@ long btrfs_ioctl_send(struct file *mnt_file, struct btrfs_ioctl_send_args *arg)
 		ret = -EINVAL;
 		goto out;
 	}
+	if ((arg->flags & BTRFS_SEND_FLAG_COMPRESSED) &&
+	    !(arg->flags & BTRFS_SEND_FLAG_STREAM_V2)) {
+		ret = -EINVAL;
+		goto out;
+	}
 
 	sctx = kzalloc(sizeof(struct send_ctx), GFP_KERNEL);
 	if (!sctx) {
diff --git a/fs/btrfs/send.h b/fs/btrfs/send.h
index 9f4f7b96b1eb..9c83e14a43b2 100644
--- a/fs/btrfs/send.h
+++ b/fs/btrfs/send.h
@@ -10,7 +10,7 @@
 #include "ctree.h"
 
 #define BTRFS_SEND_STREAM_MAGIC "btrfs-stream"
-#define BTRFS_SEND_STREAM_VERSION 1
+#define BTRFS_SEND_STREAM_VERSION 2
 
 /*
  * In send stream v1, no command is larger than 64k. In send stream v2, no limit
diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h
index 51e69f28d22d..6f29c456e4d7 100644
--- a/include/uapi/linux/btrfs.h
+++ b/include/uapi/linux/btrfs.h
@@ -785,7 +785,9 @@ struct btrfs_ioctl_received_subvol_args {
 #define BTRFS_SEND_FLAG_MASK \
 	(BTRFS_SEND_FLAG_NO_FILE_DATA | \
 	 BTRFS_SEND_FLAG_OMIT_STREAM_HEADER | \
-	 BTRFS_SEND_FLAG_OMIT_END_CMD)
+	 BTRFS_SEND_FLAG_OMIT_END_CMD | \
+	 BTRFS_SEND_FLAG_STREAM_V2 | \
+	 BTRFS_SEND_FLAG_COMPRESSED)
 
 struct btrfs_ioctl_send_args {
 	__s64 send_fd;			/* in */
-- 
2.28.0


  parent reply	other threads:[~2020-08-21  7:41 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-21  7:39 [PATCH 0/9] btrfs: implement send/receive of compressed extents without decompressing Omar Sandoval
2020-08-21  7:39 ` [PATCH 1/9] btrfs: send: get rid of i_size logic in send_write() Omar Sandoval
2020-08-21 17:26   ` Filipe Manana
2020-08-24 17:39   ` Josef Bacik
2020-08-21  7:39 ` [PATCH 2/9] btrfs: send: avoid copying file data Omar Sandoval
2020-08-21 17:29   ` Filipe Manana
2020-08-24 21:34     ` Omar Sandoval
2020-08-24 17:47   ` Josef Bacik
2020-09-11 14:13   ` David Sterba
2020-09-14 22:04     ` Omar Sandoval
2020-09-15  8:14       ` David Sterba
2020-08-21  7:39 ` [PATCH 3/9] btrfs: send: use btrfs_file_extent_end() in send_write_or_clone() Omar Sandoval
2020-08-21 17:30   ` Filipe Manana
2020-08-21  7:39 ` [PATCH 4/9] btrfs: add send_stream_version attribute to sysfs Omar Sandoval
2020-08-21  7:39 ` [PATCH 5/9] btrfs: add send stream v2 definitions Omar Sandoval
2020-08-24 17:49   ` Josef Bacik
2020-08-21  7:39 ` [PATCH 6/9] btrfs: send: write larger chunks when using stream v2 Omar Sandoval
2020-08-24 17:57   ` Josef Bacik
2020-08-21  7:39 ` [PATCH 7/9] btrfs: send: allocate send buffer with alloc_page() and vmap() for v2 Omar Sandoval
2020-08-21  7:39 ` [PATCH 8/9] btrfs: send: send compressed extents with encoded writes Omar Sandoval
2020-08-24 17:32   ` Josef Bacik
2020-08-24 17:52     ` Omar Sandoval
2020-08-21  7:39 ` Omar Sandoval [this message]
2020-08-21  7:40 ` [PATCH 01/11] btrfs-progs: receive: support v2 send stream larger tlv_len Omar Sandoval
2020-08-21  7:40 ` [PATCH 02/11] btrfs-progs: receive: dynamically allocate sctx->read_buf Omar Sandoval
2020-08-21  7:40 ` [PATCH 03/11] btrfs-progs: receive: support v2 send stream DATA tlv format Omar Sandoval
2020-08-21  7:40 ` [PATCH 04/11] btrfs-progs: receive: add send stream v2 cmds and attrs to send.h Omar Sandoval
2020-08-21  7:40 ` [PATCH 05/11] btrfs-progs: receive: add stub implementation for pwritev2 Omar Sandoval
2020-08-21  7:40 ` [PATCH 06/11] btrfs-progs: receive: process encoded_write commands Omar Sandoval
2020-08-21  7:40 ` [PATCH 07/11] btrfs-progs: receive: encoded_write fallback to explicit decode and write Omar Sandoval
2020-08-21  7:40 ` [PATCH 08/11] btrfs-progs: receive: process fallocate commands Omar Sandoval
2020-08-21  7:40 ` [PATCH 09/11] btrfs-progs: receive: process setflags ioctl commands Omar Sandoval
2020-08-21  7:40 ` [PATCH 10/11] btrfs-progs: send: stream v2 ioctl flags Omar Sandoval
2020-08-21  7:40 ` [PATCH 11/11] btrfs-progs: receive: add tests for basic encoded_write send/receive Omar Sandoval
2020-08-24 19:57 ` [PATCH 0/9] btrfs: implement send/receive of compressed extents without decompressing David Sterba
2020-08-24 22:16   ` Omar Sandoval
2020-09-10 11:28 ` David Sterba

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