Changes in 4.19.287 power: supply: ab8500: Fix external_power_changed race power: supply: bq27xxx: Use mod_delayed_work() instead of cancel() + schedule() ARM: dts: vexpress: add missing cache properties power: supply: Ratelimit no data debug output regulator: Fix error checking for debugfs_create_dir irqchip/meson-gpio: Mark OF related data as maybe unused power: supply: Fix logic checking if system is running from battery parisc: Improve cache flushing for PCXL in arch_sync_dma_for_cpu() MIPS: Alchemy: fix dbdma2 mips: Move initrd_start check after initrd address sanitisation. xen/blkfront: Only check REQ_FUA for writes ocfs2: fix use-after-free when unmounting read-only filesystem ocfs2: check new file size on fallocate call nios2: dts: Fix tse_mac "max-frame-size" property nilfs2: fix incomplete buffer cleanup in nilfs_btnode_abort_change_key() nilfs2: fix possible out-of-bounds segment allocation in resize ioctl kexec: support purgatories with .text.hot sections powerpc/purgatory: remove PGO flags nouveau: fix client work fence deletion race RDMA/uverbs: Restrict usage of privileged QKEYs net: usb: qmi_wwan: add support for Compal RXM-G1 Remove DECnet support from kernel USB: serial: option: add Quectel EM061KGL series usb: dwc3: gadget: Reset num TRBs before giving back the request usb: gadget: f_ncm: Add OS descriptor support usb: gadget: f_ncm: Fix NTP-32 support netfilter: nfnetlink: skip error delivery on batch in case of ENOMEM ping6: Fix send to link-local addresses with VRF. RDMA/rxe: Remove the unused variable obj RDMA/rxe: Removed unused name from rxe_task struct RDMA/rxe: Fix the use-before-initialization error of resp_pkts IB/uverbs: Fix to consider event queue closing also upon non-blocking mode IB/isert: Fix dead lock in ib_isert IB/isert: Fix possible list corruption in CMA handler IB/isert: Fix incorrect release of isert connection sctp: fix an error code in sctp_sf_eat_auth() igb: fix nvm.ops.read() error handling drm/nouveau/dp: check for NULL nv_connector->native_mode drm/nouveau/kms: Don't change EDID when it hasn't actually changed drm/nouveau: add nv_encoder pointer check for NULL net: lapbether: only support ethernet devices net: tipc: resize nlattr array to correct size selftests/ptp: Fix timestamp printf format for PTP_SYS_OFFSET neighbour: Remove unused inline function neigh_key_eq16() net: Remove unused inline function dst_hold_and_use() neighbour: delete neigh_lookup_nodev as not used drm/nouveau/kms: Fix NULL pointer dereference in nouveau_connector_detect_depth powerpc: Fix defconfig choice logic when cross compiling mmc: block: ensure error propagation for non-blk Linux 4.19.287 Change-Id: Ib4119b05e8fe06820cd2d6f3aa66a7e7e8cc5100 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
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/admin-guide/binfmt-misc.rst> 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 user/ Per user per user namespace limits 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 :-)