android_kernel_oneplus_msm8998/Documentation/sysctl
Greg Kroah-Hartman 64a73ff728 This is the 4.4.76 stable release
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Merge 4.4.76 into android-4.4

Changes in 4.4.76
	ipv6: release dst on error in ip6_dst_lookup_tail
	net: don't call strlen on non-terminated string in dev_set_alias()
	decnet: dn_rtmsg: Improve input length sanitization in dnrmg_receive_user_skb
	net: Zero ifla_vf_info in rtnl_fill_vfinfo()
	af_unix: Add sockaddr length checks before accessing sa_family in bind and connect handlers
	Fix an intermittent pr_emerg warning about lo becoming free.
	net: caif: Fix a sleep-in-atomic bug in cfpkt_create_pfx
	igmp: acquire pmc lock for ip_mc_clear_src()
	igmp: add a missing spin_lock_init()
	ipv6: fix calling in6_ifa_hold incorrectly for dad work
	net/mlx5: Wait for FW readiness before initializing command interface
	decnet: always not take dst->__refcnt when inserting dst into hash table
	net: 8021q: Fix one possible panic caused by BUG_ON in free_netdev
	sfc: provide dummy definitions of vswitch functions
	ipv6: Do not leak throw route references
	rtnetlink: add IFLA_GROUP to ifla_policy
	netfilter: xt_TCPMSS: add more sanity tests on tcph->doff
	netfilter: synproxy: fix conntrackd interaction
	NFSv4: fix a reference leak caused WARNING messages
	drm/ast: Handle configuration without P2A bridge
	mm, swap_cgroup: reschedule when neeed in swap_cgroup_swapoff()
	MIPS: Avoid accidental raw backtrace
	MIPS: pm-cps: Drop manual cache-line alignment of ready_count
	MIPS: Fix IRQ tracing & lockdep when rescheduling
	ALSA: hda - Fix endless loop of codec configure
	ALSA: hda - set input_path bitmap to zero after moving it to new place
	drm/vmwgfx: Free hash table allocated by cmdbuf managed res mgr
	usb: gadget: f_fs: Fix possibe deadlock
	sysctl: enable strict writes
	block: fix module reference leak on put_disk() call for cgroups throttle
	mm: numa: avoid waiting on freed migrated pages
	KVM: x86: fix fixing of hypercalls
	scsi: sd: Fix wrong DPOFUA disable in sd_read_cache_type
	scsi: lpfc: Set elsiocb contexts to NULL after freeing it
	qla2xxx: Fix erroneous invalid handle message
	ARM: dts: BCM5301X: Correct GIC_PPI interrupt flags
	net: mvneta: Fix for_each_present_cpu usage
	MIPS: ath79: fix regression in PCI window initialization
	net: korina: Fix NAPI versus resources freeing
	MIPS: ralink: MT7688 pinmux fixes
	MIPS: ralink: fix USB frequency scaling
	MIPS: ralink: Fix invalid assignment of SoC type
	MIPS: ralink: fix MT7628 pinmux typos
	MIPS: ralink: fix MT7628 wled_an pinmux gpio
	mtd: bcm47xxpart: limit scanned flash area on BCM47XX (MIPS) only
	bgmac: fix a missing check for build_skb
	mtd: bcm47xxpart: don't fail because of bit-flips
	bgmac: Fix reversed test of build_skb() return value.
	net: bgmac: Fix SOF bit checking
	net: bgmac: Start transmit queue in bgmac_open
	net: bgmac: Remove superflous netif_carrier_on()
	powerpc/eeh: Enable IO path on permanent error
	gianfar: Do not reuse pages from emergency reserve
	Btrfs: fix truncate down when no_holes feature is enabled
	virtio_console: fix a crash in config_work_handler
	swiotlb-xen: update dev_addr after swapping pages
	xen-netfront: Fix Rx stall during network stress and OOM
	scsi: virtio_scsi: Reject commands when virtqueue is broken
	platform/x86: ideapad-laptop: handle ACPI event 1
	amd-xgbe: Check xgbe_init() return code
	net: dsa: Check return value of phy_connect_direct()
	drm/amdgpu: check ring being ready before using
	vfio/spapr: fail tce_iommu_attach_group() when iommu_data is null
	virtio_net: fix PAGE_SIZE > 64k
	vxlan: do not age static remote mac entries
	ibmveth: Add a proper check for the availability of the checksum features
	kernel/panic.c: add missing \n
	HID: i2c-hid: Add sleep between POWER ON and RESET
	scsi: lpfc: avoid double free of resource identifiers
	spi: davinci: use dma_mapping_error()
	mac80211: initialize SMPS field in HT capabilities
	x86/mpx: Use compatible types in comparison to fix sparse error
	coredump: Ensure proper size of sparse core files
	swiotlb: ensure that page-sized mappings are page-aligned
	s390/ctl_reg: make __ctl_load a full memory barrier
	be2net: fix status check in be_cmd_pmac_add()
	perf probe: Fix to show correct locations for events on modules
	net/mlx4_core: Eliminate warning messages for SRQ_LIMIT under SRIOV
	sctp: check af before verify address in sctp_addr_id2transport
	ravb: Fix use-after-free on `ifconfig eth0 down`
	jump label: fix passing kbuild_cflags when checking for asm goto support
	xfrm: fix stack access out of bounds with CONFIG_XFRM_SUB_POLICY
	xfrm: NULL dereference on allocation failure
	xfrm: Oops on error in pfkey_msg2xfrm_state()
	watchdog: bcm281xx: Fix use of uninitialized spinlock.
	sched/loadavg: Avoid loadavg spikes caused by delayed NO_HZ accounting
	ARM64/ACPI: Fix BAD_MADT_GICC_ENTRY() macro implementation
	ARM: 8685/1: ensure memblock-limit is pmd-aligned
	x86/mpx: Correctly report do_mpx_bt_fault() failures to user-space
	x86/mm: Fix flush_tlb_page() on Xen
	ocfs2: o2hb: revert hb threshold to keep compatible
	iommu/vt-d: Don't over-free page table directories
	iommu: Handle default domain attach failure
	iommu/amd: Fix incorrect error handling in amd_iommu_bind_pasid()
	cpufreq: s3c2416: double free on driver init error path
	KVM: x86: fix emulation of RSM and IRET instructions
	KVM: x86/vPMU: fix undefined shift in intel_pmu_refresh()
	KVM: x86: zero base3 of unusable segments
	KVM: nVMX: Fix exception injection
	Linux 4.4.76

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2017-07-05 16:16:58 +02:00
..
00-INDEX sysctl: remove obsolete comments 2011-01-13 08:03:18 -08:00
abi.txt
fs.txt mnt: Add a per mount namespace limit on the number of mounts 2017-04-30 05:49:28 +02:00
kernel.txt This is the 4.4.76 stable release 2017-07-05 16:16:58 +02:00
net.txt net: qdisc: enhance default_qdisc documentation 2015-09-17 16:09:22 -07:00
README
sunrpc.txt
vm.txt FROMLIST: mm: mmap: Add new /proc tunable for mmap_base ASLR. 2016-02-16 13:54:14 -08:00

Documentation for /proc/sys/		kernel version 2.2.10
	(c) 1998, 1999,  Rik van Riel <riel@nl.linux.org>

'Why', I hear you ask, 'would anyone even _want_ documentation
for them sysctl files? If anybody really needs it, it's all in
the source...'

Well, this documentation is written because some people either
don't know they need to tweak something, or because they don't
have the time or knowledge to read the source code.

Furthermore, the programmers who built sysctl have built it to
be actually used, not just for the fun of programming it :-)

==============================================================

Legal blurb:

As usual, there are two main things to consider:
1. you get what you pay for
2. it's free

The consequences are that I won't guarantee the correctness of
this document, and if you come to me complaining about how you
screwed up your system because of wrong documentation, I won't
feel sorry for you. I might even laugh at you...

But of course, if you _do_ manage to screw up your system using
only the sysctl options used in this file, I'd like to hear of
it. Not only to have a great laugh, but also to make sure that
you're the last RTFMing person to screw up.

In short, e-mail your suggestions, corrections and / or horror
stories to: <riel@nl.linux.org>

Rik van Riel.

==============================================================

Introduction:

Sysctl is a means of configuring certain aspects of the kernel
at run-time, and the /proc/sys/ directory is there so that you
don't even need special tools to do it!
In fact, there are only four things needed to use these config
facilities:
- a running Linux system
- root access
- common sense (this is especially hard to come by these days)
- knowledge of what all those values mean

As a quick 'ls /proc/sys' will show, the directory consists of
several (arch-dependent?) subdirs. Each subdir is mainly about
one part of the kernel, so you can do configuration on a piece
by piece basis, or just some 'thematic frobbing'.

The subdirs are about:
abi/		execution domains & personalities
debug/		<empty>
dev/		device specific information (eg dev/cdrom/info)
fs/		specific filesystems
		filehandle, inode, dentry and quota tuning
		binfmt_misc <Documentation/binfmt_misc.txt>
kernel/		global kernel info / tuning
		miscellaneous stuff
net/		networking stuff, for documentation look in:
		<Documentation/networking/>
proc/		<empty>
sunrpc/		SUN Remote Procedure Call (NFS)
vm/		memory management tuning
		buffer and cache management

These are the subdirs I have on my system. There might be more
or other subdirs in another setup. If you see another dir, I'd
really like to hear about it :-)