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Message-ID: <20070721203819.GA10706@mail.linbit.com> Date: Sat, 21 Jul 2007 22:38:19 +0200 From: Lars Ellenberg <lars@...bit.com> To: Jens Axboe <axboe@...nel.dk>, Andrew Morton <akpm@...l.org>, lkml <linux-kernel@...r.kernel.org> Cc: drbd-user@...ts.linbit.com Subject: [DRIVER SUBMISSION] DRBD wants to go mainline DRBD wants to go mainline. please have a look at the "for-linus" branch of git://git.drbd.org/home/git/linux-drbd.git. Longer story: Hi there, for lkml readers who don't know about DRBD yet: DRBD is the distributed replicated block device, a stacked block device driver as developed mainly by Lars Ellenberg and Philipp Reisner both employed at Linbit. We implement shared-disk semantics in a shared-nothing cluster. yes, we even support cluster file systems (OCFS2, GFS2) [support for this is somewhat clumsy, still, mainly userland/setup/convenience issues. but that will improve.] to actually use it you will need some userland tools (drbdadm, drbdmeta, drbdsetup). most unfortunate current limitations: we support only 2 nodes directly; but we are working on that, too :) I'm going to give a presentation/BoF about it at linux-conf.eu in September. Currently we are at "stable version 8.0.y" (y == 4 right now, 8.0.5 to be released within a few days. we have a project home page http://www.drbd.org we have some mention on the linux-HA project http://www.linux-ha.org/DRBD (both are slightly out-dated, unfortunately...) our subversion repository (yeah, sorry, there has been no git back then) is at http://svn.drbd.org/drbd/branches/drbd-8.0 and, we have a user base... [drbd-user readers who are in a position to do so: please help us get this into mainline! ] Now, finally, we have a git repository of the kernel module part, too: git://git.drbd.org/home/git/linux-drbd.git it has two branches currently, master, which tracks ...torvalds/linux-2.6.git, and for-linus, which tracks the cleaned up patch meant for inclusin in mainline. so if interessted please do git fetch git://git.drbd.org/home/git/linux-drbd.git +for-linus:drbd-8.0 to get a local branch named drbd-8.0 where you can inspect it. see below for a diffstat of master..for-linus. Jens, Andrew, anyone: please review, and give me advice how to proceed from here. technically, would you prefer frequent rebase of the "for-linus" branch, or rather merges back and forth? Cheers, Lars The only not drbd specific files touched are listed explicitly here: ===================== diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig index a4a3119..76f84bc 100644 --- a/drivers/block/Kconfig +++ b/drivers/block/Kconfig @@ -272,6 +272,8 @@ config BLK_DEV_CRYPTOLOOP instead, which can be configured to be on-disk compatible with the cryptoloop device. +source "drivers/block/drbd/Kconfig" + config BLK_DEV_NBD tristate "Network block device support" depends on NET diff --git a/drivers/block/Makefile b/drivers/block/Makefile index 819c829..b27e16a 100644 --- a/drivers/block/Makefile +++ b/drivers/block/Makefile @@ -31,3 +31,4 @@ obj-$(CONFIG_BLK_DEV_UB) += ub.o obj-$(CONFIG_XEN_BLKDEV_FRONTEND) += xen-blkfront.o obj-$(CONFIG_LGUEST_GUEST) += lguest_blk.o +obj-$(CONFIG_BLK_DEV_DRBD) += drbd/ diff --git a/include/linux/major.h b/include/linux/major.h index 0cb9805..2dbd7c1 100644 --- a/include/linux/major.h +++ b/include/linux/major.h @@ -145,6 +145,8 @@ #define UNIX98_PTY_MAJOR_COUNT 8 #define UNIX98_PTY_SLAVE_MAJOR (UNIX98_PTY_MASTER_MAJOR+UNIX98_PTY_MAJOR_COUNT) +#define DRBD_MAJOR 147 + #define RTF_MAJOR 150 #define RAW_MAJOR 162 ===================== (yes, block major 147 is assigned by LANANA, as documented in Documentation/devices.txt already) git-diff master..for-linus | diffstat drivers/block/Kconfig | 2 drivers/block/Makefile | 1 drivers/block/drbd/Kconfig | 32 drivers/block/drbd/Makefile | 7 drivers/block/drbd/drbd_actlog.c | 1456 ++++++++++++++++ drivers/block/drbd/drbd_bitmap.c | 1184 +++++++++++++ drivers/block/drbd/drbd_buildtag.c | 6 drivers/block/drbd/drbd_int.h | 1894 ++++++++++++++++++++ drivers/block/drbd/drbd_main.c | 3249 +++++++++++++++++++++++++++++++++++ drivers/block/drbd/drbd_nl.c | 1847 ++++++++++++++++++++ drivers/block/drbd/drbd_proc.c | 267 ++ drivers/block/drbd/drbd_receiver.c | 3356 +++++++++++++++++++++++++++++++++++++ drivers/block/drbd/drbd_req.c | 1169 ++++++++++++ drivers/block/drbd/drbd_req.h | 320 +++ drivers/block/drbd/drbd_strings.c | 106 + drivers/block/drbd/drbd_worker.c | 1046 +++++++++++ drivers/block/drbd/drbd_wrappers.h | 144 + drivers/block/drbd/lru_cache.c | 370 ++++ drivers/block/drbd/lru_cache.h | 147 + include/linux/drbd.h | 284 +++ include/linux/drbd_config.h | 55 include/linux/drbd_limits.h | 124 + include/linux/drbd_nl.h | 105 + include/linux/drbd_tag_magic.h | 78 include/linux/major.h | 2 25 files changed, 17251 insertions(+) -- : Lars Ellenberg Tel +43-1-8178292-0 : : LINBIT Information Technologies GmbH Fax +43-1-8178292-82 : : Vivenotgasse 48, A-1120 Vienna/Europe http://www.linbit.com : - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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