Re: [PATCH 0/4] cleancache: remove limit on the number of cleancache enabled filesystems

From: Konrad Rzeszutek Wilk
Date: Mon Feb 23 2015 - 11:13:16 EST


On Sun, Feb 22, 2015 at 09:31:51PM +0300, Vladimir Davydov wrote:
> Hi,
>
> Currently, maximal number of cleancache enabled filesystems equals 32,
> which is insufficient nowadays, because a Linux host can have hundreds
> of containers on board, each of which might want its own filesystem.
> This patch set targets at removing this limitation - see patch 4 for
> more details. Patches 1-3 prepare the code for this change.

Hey Vladimir,

Thank you for posting these patches. I was wondering if you had
run through some of the different combinations that you can
load the filesystems/tmem drivers in random order? The #4 patch
deleted a nice chunk of documentation that outlines the different
combinations.

Thank you!
>
> Thanks,
>
> Vladimir Davydov (4):
> ocfs2: copy fs uuid to superblock
> cleancache: zap uuid arg of cleancache_init_shared_fs
> cleancache: forbid overriding cleancache_ops
> cleancache: remove limit on the number of cleancache enabled
> filesystems
>
> Documentation/vm/cleancache.txt | 4 +-
> drivers/xen/tmem.c | 16 ++-
> fs/ocfs2/super.c | 4 +-
> fs/super.c | 2 +-
> include/linux/cleancache.h | 13 +-
> mm/cleancache.c | 270 +++++++++++----------------------------
> 6 files changed, 94 insertions(+), 215 deletions(-)
>
> --
> 1.7.10.4
>
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