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From: NeilBrown <neilb@suse.de>
To: Chuck Lever <chuck.lever@oracle.com>, Jeff Layton <jlayton@kernel.org>
Cc: linux-nfs@vger.kernel.org,
	Olga Kornievskaia <okorniev@redhat.com>,
	Dai Ngo <Dai.Ngo@oracle.com>, Tom Talpey <tom@talpey.com>
Subject: [PATCH 0/6 v3] nfsd: allocate/free session-based DRC slots on demand
Date: Fri,  6 Dec 2024 11:43:14 +1100	[thread overview]
Message-ID: <20241206004829.3497925-1-neilb@suse.de> (raw)

Changes from v2:
 - number of slots is increased more quickly.  Every time the highest-number
   slot is used, we increase by at least 20%.
 - when xa_store() is used in a context where we no that no allocation can
   happen, pass '0' as the GFP flag.
 - report target slots as well as total slots in /proc/fs/nfsd/clients/*/info

I've stay with reporting session information in the client info file
rather than creating a directory or using netlink.  I think the client
info file is simple and adequate.

I still haven't added support for CB_RECALL_SLOT.  While it is helpful,
it isn't essential.  I'll probably try to add it after the current
series lands.

Thanks,
NeilBrown



             reply	other threads:[~2024-12-06  0:48 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-12-06  0:43 NeilBrown [this message]
2024-12-06  0:43 ` [PATCH 1/6] nfsd: use an xarray to store v4.1 session slots NeilBrown
2024-12-06  0:43 ` [PATCH 2/6] nfsd: remove artificial limits on the session-based DRC NeilBrown
2024-12-06  0:43 ` [PATCH 3/6] nfsd: add session slot count to /proc/fs/nfsd/clients/*/info NeilBrown
2024-12-06  0:43 ` [PATCH 4/6] nfsd: allocate new session-based DRC slots on demand NeilBrown
2024-12-06  1:04   ` Jeff Layton
2024-12-06  1:43     ` NeilBrown
2024-12-06 13:49       ` Jeff Layton
2024-12-06 20:51   ` Chuck Lever
2024-12-08  4:52     ` NeilBrown
2024-12-06  0:43 ` [PATCH 5/6] nfsd: add support for freeing unused session-DRC slots NeilBrown
2024-12-06  5:30   ` Jeff Layton
2024-12-06  6:05     ` NeilBrown
2024-12-06 13:59       ` Jeff Layton
2024-12-06  0:43 ` [PATCH 6/6] nfsd: add shrinker to reduce number of slots allocated per session NeilBrown

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