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Message-Id: <1346366764-31717-1-git-send-email-dan.magenheimer@oracle.com> Date: Thu, 30 Aug 2012 15:46:01 -0700 From: Dan Magenheimer <dan.magenheimer@...cle.com> To: devel@...uxdriverproject.org, linux-kernel@...r.kernel.org, gregkh@...uxfoundation.org, linux-mm@...ck.org, ngupta@...are.org, konrad.wilk@...cle.com, sjenning@...ux.vnet.ibm.com, minchan@...nel.org, dan.magenheimer@...cle.com Subject: [PATCH 0/3] staging: ramster: move to new zcache2 code base Hi Greg -- gregkh> If you feel that the existing code needs to be dropped gregkh> and replaced with a totally new version, that's fine with gregkh> me. It's forward progress, which is all that I ask for. (http://lkml.indiana.edu/hypermail/linux/kernel/1208.0/02240.html, in reference to zcache, assuming applies to ramster as well) Please apply for staging-next for the 3.7 window to move ramster forward. Since AFAICT there have been no patches or contributions from others to drivers/staging/ramster since it was merged, this totally new version of ramster should not run afoul and the patches should apply to 3.5 or 3.6-rcN. Thanks, Dan When ramster was merged into staging at 3.4, it used a "temporarily" forked version of zcache. Code was proposed to merge zcache and ramster into a new common redesigned codebase which both resolves various serious design flaws and eliminates all code duplication between zcache and ramster, with the result to replace "zcache". Sadly, that proposal was blocked, so the zcache (and tmem) code in drivers/staging/zcache and the zcache (and tmem) code in drivers/staging/ramster continue to be different. This patchset moves ramster to the new redesigned codebase and calls that new codebase "zcache2". Most, if not all, of the redesign will eventually need to be merged with "zcache1" before zcache functionality should be promoted out of staging. An overview of the zcache2 rewrite is provided in a git commit comment later in this series. A significant item of debate in the new codebase is the removal of zsmalloc. This removal may be temporary if zsmalloc is enhanced with necessary features to meet the needs of the new zcache codebase. Justification for the change can be found at http://lkml.org/lkml/2012/8/15/292 Such zsmalloc enhancments will almost certainly necessitate a major rework, not a small patch. While this zcache2 codebase is far from perfect (and thus remains in staging), the foundation is now cleaner, more stable, more maintainable, and much better commented. Signed-off-by: Dan Magenheimer <dan.magenheimer@...cle.com> --- Diffstat: drivers/staging/Kconfig | 4 +- drivers/staging/Makefile | 2 +- drivers/staging/ramster/Kconfig | 25 +- drivers/staging/ramster/Makefile | 7 +- drivers/staging/ramster/TODO | 13 - drivers/staging/ramster/cluster/Makefile | 3 - drivers/staging/ramster/cluster/heartbeat.c | 464 --- drivers/staging/ramster/cluster/heartbeat.h | 87 - drivers/staging/ramster/cluster/masklog.c | 155 - drivers/staging/ramster/cluster/masklog.h | 220 -- drivers/staging/ramster/cluster/nodemanager.c | 992 ------ drivers/staging/ramster/cluster/nodemanager.h | 88 - .../staging/ramster/cluster/ramster_nodemanager.h | 39 - drivers/staging/ramster/cluster/tcp.c | 2256 ------------- drivers/staging/ramster/cluster/tcp.h | 159 - drivers/staging/ramster/cluster/tcp_internal.h | 248 -- drivers/staging/ramster/r2net.c | 401 --- drivers/staging/ramster/ramster.h | 113 +- drivers/staging/ramster/ramster/heartbeat.c | 462 +++ drivers/staging/ramster/ramster/heartbeat.h | 87 + drivers/staging/ramster/ramster/masklog.c | 155 + drivers/staging/ramster/ramster/masklog.h | 220 ++ drivers/staging/ramster/ramster/nodemanager.c | 995 ++++++ drivers/staging/ramster/ramster/nodemanager.h | 88 + drivers/staging/ramster/ramster/r2net.c | 414 +++ drivers/staging/ramster/ramster/ramster.c | 985 ++++++ drivers/staging/ramster/ramster/ramster.h | 161 + .../staging/ramster/ramster/ramster_nodemanager.h | 39 + drivers/staging/ramster/ramster/tcp.c | 2253 +++++++++++++ drivers/staging/ramster/ramster/tcp.h | 159 + drivers/staging/ramster/ramster/tcp_internal.h | 248 ++ drivers/staging/ramster/tmem.c | 313 +- drivers/staging/ramster/tmem.h | 109 +- drivers/staging/ramster/xvmalloc.c | 509 --- drivers/staging/ramster/xvmalloc.h | 30 - drivers/staging/ramster/xvmalloc_int.h | 95 - drivers/staging/ramster/zbud.c | 1060 ++++++ drivers/staging/ramster/zbud.h | 33 + drivers/staging/ramster/zcache-main.c | 3532 ++++++-------------- drivers/staging/ramster/zcache.h | 55 +- 40 files changed, 8711 insertions(+), 8567 deletions(-) -- 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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