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From: Omar Sandoval <osandov@osandov.com>
To: linux-btrfs@vger.kernel.org
Cc: kernel-team@fb.com, linux-fsdevel@vger.kernel.org,
	linux-api@vger.kernel.org
Subject: [PATCH v11 14/14] btrfs: send: enable support for stream v2 and compressed writes
Date: Wed,  1 Sep 2021 10:01:09 -0700	[thread overview]
Message-ID: <61a4a5b6bf694c7441b2ba04b724d012997fa3f7.1630514529.git.osandov@fb.com> (raw)
In-Reply-To: <cover.1630514529.git.osandov@fb.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 0ba8dc3a9f56..90ca915fed78 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -671,7 +671,10 @@ 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);
@@ -7466,6 +7469,11 @@ 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 4f875f355e83..5c13e407982f 100644
--- a/include/uapi/linux/btrfs.h
+++ b/include/uapi/linux/btrfs.h
@@ -787,7 +787,9 @@ 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 */
-- 
2.33.0


  parent reply	other threads:[~2021-09-01 17:01 UTC|newest]

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-01 17:00 [PATCH v11 00/14] btrfs: add ioctls and send/receive support for reading/writing compressed data Omar Sandoval
2021-09-01 17:00 ` [PATCH v11 01/14] fs: export rw_verify_area() Omar Sandoval
2021-11-18 19:19   ` Omar Sandoval
2022-01-04 19:06     ` Omar Sandoval
2021-09-01 17:00 ` [PATCH v11 02/14] fs: export variant of generic_write_checks without iov_iter Omar Sandoval
2021-10-14 12:03   ` Nikolay Borisov
2021-09-01 17:00 ` [PATCH v11 03/14] btrfs: don't advance offset for compressed bios in btrfs_csum_one_bio() Omar Sandoval
2021-10-14 12:05   ` Nikolay Borisov
2021-10-18 18:09     ` Omar Sandoval
2021-09-01 17:00 ` [PATCH v11 04/14] btrfs: add ram_bytes and offset to btrfs_ordered_extent Omar Sandoval
2021-10-21 12:44   ` Nikolay Borisov
2021-10-21 16:55     ` Omar Sandoval
2021-09-01 17:01 ` [PATCH v11 05/14] btrfs: support different disk extent size for delalloc Omar Sandoval
2021-09-01 17:01 ` [PATCH v11 06/14] btrfs: optionally extend i_size in cow_file_range_inline() Omar Sandoval
2021-10-14 12:54   ` Nikolay Borisov
2021-09-01 17:01 ` [PATCH v11 07/14] btrfs: add definitions + documentation for encoded I/O ioctls Omar Sandoval
2021-10-15  9:42   ` Nikolay Borisov
2021-10-18 18:16     ` Omar Sandoval
2021-09-01 17:01 ` [PATCH v11 08/14] btrfs: add BTRFS_IOC_ENCODED_READ Omar Sandoval
2021-10-15 11:45   ` Nikolay Borisov
2021-10-18 23:59     ` Omar Sandoval
2021-09-01 17:01 ` [PATCH v11 09/14] btrfs: add BTRFS_IOC_ENCODED_WRITE Omar Sandoval
2021-09-01 17:01 ` [PATCH v11 10/14] btrfs: add send stream v2 definitions Omar Sandoval
2021-10-18 12:46   ` Nikolay Borisov
2021-10-18 15:11   ` Nikolay Borisov
2021-10-18 18:58     ` Omar Sandoval
2021-10-19  7:01       ` Nikolay Borisov
2021-09-01 17:01 ` [PATCH v11 11/14] btrfs: send: write larger chunks when using stream v2 Omar Sandoval
2021-10-18 12:57   ` Nikolay Borisov
2021-09-01 17:01 ` [PATCH v11 12/14] btrfs: send: allocate send buffer with alloc_page() and vmap() for v2 Omar Sandoval
2021-10-18 11:10   ` Nikolay Borisov
2021-09-01 17:01 ` [PATCH v11 13/14] btrfs: send: send compressed extents with encoded writes Omar Sandoval
2021-10-18 11:59   ` Nikolay Borisov
2021-10-19  0:11     ` Omar Sandoval
2021-09-01 17:01 ` Omar Sandoval [this message]
2021-10-18 12:44   ` [PATCH v11 14/14] btrfs: send: enable support for stream v2 and compressed writes Nikolay Borisov
2021-10-18 18:34     ` Omar Sandoval
2021-09-01 17:01 ` [PATCH v11 01/10] btrfs-progs: receive: support v2 send stream larger tlv_len Omar Sandoval
2021-10-20 13:49   ` Nikolay Borisov
2021-10-20 18:48     ` Omar Sandoval
2021-09-01 17:01 ` [PATCH v11 02/10] btrfs-progs: receive: dynamically allocate sctx->read_buf Omar Sandoval
2021-10-20 14:09   ` Nikolay Borisov
2021-10-20 14:35     ` Nikolay Borisov
2021-10-20 17:44       ` Omar Sandoval
2021-09-01 17:01 ` [PATCH v11 03/10] btrfs-progs: receive: support v2 send stream DATA tlv format Omar Sandoval
2021-10-20 14:36   ` Nikolay Borisov
2021-09-01 17:01 ` [PATCH v11 04/10] btrfs-progs: receive: add send stream v2 cmds and attrs to send.h Omar Sandoval
2021-10-20 14:38   ` Nikolay Borisov
2021-09-01 17:01 ` [PATCH v11 05/10] btrfs-progs: receive: process encoded_write commands Omar Sandoval
2021-10-21 13:33   ` Nikolay Borisov
2021-10-21 16:52     ` Omar Sandoval
2021-09-01 17:01 ` [PATCH v11 06/10] btrfs-progs: receive: encoded_write fallback to explicit decode and write Omar Sandoval
2021-10-21 13:55   ` Nikolay Borisov
2021-10-21 17:22     ` Omar Sandoval
2021-09-01 17:01 ` [PATCH v11 07/10] btrfs-progs: receive: process fallocate commands Omar Sandoval
2021-10-21 14:21   ` Nikolay Borisov
2021-10-21 17:28     ` Omar Sandoval
2021-09-01 17:01 ` [PATCH v11 08/10] btrfs-progs: receive: process setflags ioctl commands Omar Sandoval
2021-10-21 14:22   ` Nikolay Borisov
2021-09-01 17:01 ` [PATCH v11 09/10] btrfs-progs: send: stream v2 ioctl flags Omar Sandoval
2021-10-22  6:35   ` Nikolay Borisov
2021-09-01 17:01 ` [PATCH v11 10/10] btrfs-progs: receive: add tests for basic encoded_write send/receive Omar Sandoval

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