Davidlohr Bueso 3079c1e6ef ipc,mqueue: remove limits for the amount of system-wide queues ... commit f3713fd9cff733d9df83116422d8e4af6e86b2bb upstream. Commit 93e6f119c0 ("ipc/mqueue: cleanup definition names and locations") added global hardcoded limits to the amount of message queues that can be created. While these limits are per-namespace, reality is that it ends up breaking userspace applications. Historically users have, at least in theory, been able to create up to INT_MAX queues, and limiting it to just 1024 is way too low and dramatic for some workloads and use cases. For instance, Madars reports: "This update imposes bad limits on our multi-process application. As our app uses approaches that each process opens its own set of queues (usually something about 3-5 queues per process). In some scenarios we might run up to 3000 processes or more (which of-course for linux is not a problem). Thus we might need up to 9000 queues or more. All processes run under one user." Other affected users can be found in launchpad bug #1155695: https://bugs.launchpad.net/ubuntu/+source/manpages/+bug/1155695 Instead of increasing this limit, revert it entirely and fallback to the original way of dealing queue limits -- where once a user's resource limit is reached, and all memory is used, new queues cannot be created. Signed-off-by: Davidlohr Bueso <davidlohr@hp.com> Reported-by: Madars Vitolins <m@silodev.com> Acked-by: Doug Ledford <dledford@redhat.com> Cc: Manfred Spraul <manfred@colorfullife.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2014-03-06 21:30:12 -08:00
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acpi	ACPI / hotplug: Fix conflicted PCI bridge notify handlers	2013-12-04 10:57:04 -08:00
asm-generic	mm: fix TLB flush race between migration, and change_protection_range	2014-01-09 12:24:23 -08:00
clocksource	clocksource: arch_timer: use virtual counters	2014-01-09 12:24:26 -08:00
crypto	crypto: scatterwalk - Use sg_chain_ptr on chain entries	2013-12-11 22:36:29 -08:00
drm	drm/radeon: 0x9649 is SUMO2 not SUMO	2014-01-09 12:24:22 -08:00
dt-bindings	…
keys	…
linux	ipc,mqueue: remove limits for the amount of system-wide queues	2014-03-06 21:30:12 -08:00
math-emu	…
media	media: v4l2: added missing mutex.h include to v4l2-ctrls.h	2013-09-26 17:18:26 -07:00
memory	…
misc	…
net	netfilter: push reasm skb through instead of original frag skbs	2013-12-08 07:29:25 -08:00
pcmcia	…
ras	…
rdma	…
rxrpc	…
scsi	ore: Fix wrong math in allocation of per device BIO	2014-02-13 13:48:00 -08:00
sound	ALSA: memalloc.h - fix wrong truncation of dma_addr_t	2013-12-20 07:45:06 -08:00
target	target/file: Update hw_max_sectors based on current block_size	2014-01-09 12:24:20 -08:00
trace	tracing: Allow events to have NULL strings	2013-12-04 10:57:17 -08:00
uapi	ALSA: compress: Fix 64bit ABI incompatibility	2013-12-20 07:45:06 -08:00
video	Merge branch 'fbdev-3.10-fixes' of git://gitorious.org/linux-omap-dss2/linux into linux-fbdev/for-3.10-fixes	2013-05-29 17:00:34 +08:00
xen	xenbus: delay xenbus frontend resume if xenstored is not running	2013-05-29 09:04:19 -04:00
Kbuild	…