9df7ef7315
* aosp/android-4.19-stable: ANDROID: revert some RNG function signature changes ANDROID: cpu/hotplug: avoid breaking Android ABI by fusing cpuhp steps UPSTREAM: lib/crypto: blake2s: avoid indirect calls to compression function for Clang CFI BACKPORT: lib/crypto: add prompts back to crypto libraries BACKPORT: lib/crypto: blake2s: include as built-in Linux 4.19.251 net: usb: qmi_wwan: add Telit 0x1070 composition net: usb: qmi_wwan: add Telit 0x1060 composition xen/arm: Fix race in RB-tree based P2M accounting xen/blkfront: force data bouncing when backend is untrusted xen/netfront: force data bouncing when backend is untrusted xen/netfront: fix leaking data in shared pages xen/blkfront: fix leaking data in shared pages ipv6/sit: fix ipip6_tunnel_get_prl return value sit: use min net: dsa: bcm_sf2: force pause link settings hwmon: (ibmaem) don't call platform_device_del() if platform_device_add() fails xen/gntdev: Avoid blocking in unmap_grant_pages() net: tun: avoid disabling NAPI twice NFC: nxp-nci: Don't issue a zero length i2c_master_read() nfc: nfcmrvl: Fix irq_of_parse_and_map() return value net: bonding: fix use-after-free after 802.3ad slave unbind net: bonding: fix possible NULL deref in rlb code netfilter: nft_dynset: restore set element counter when failing to update caif_virtio: fix race between virtio_device_ready() and ndo_open() net: ipv6: unexport __init-annotated seg6_hmac_net_init() usbnet: fix memory allocation in helpers RDMA/qedr: Fix reporting QP timeout attribute net: tun: stop NAPI when detaching queues net: tun: unlink NAPI from device on destruction selftests/net: pass ipv6_args to udpgso_bench's IPv6 TCP test virtio-net: fix race between ndo_open() and virtio_device_ready() net: usb: ax88179_178a: Fix packet receiving net: rose: fix UAF bugs caused by timer handler SUNRPC: Fix READ_PLUS crasher s390/archrandom: simplify back to earlier design and initialize earlier dm raid: fix KASAN warning in raid5_add_disks dm raid: fix accesses beyond end of raid member array nvdimm: Fix badblocks clear off-by-one error UPSTREAM: crypto: poly1305 - fix poly1305_core_setkey() declaration UPSTREAM: mm: fix misplaced unlock_page in do_wp_page() BACKPORT: mm: do_wp_page() simplification UPSTREAM: mm/ksm: Remove reuse_ksm_page() UPSTREAM: mm: reuse only-pte-mapped KSM page in do_wp_page() Linux 4.19.250 swiotlb: skip swiotlb_bounce when orig_addr is zero net/sched: move NULL ptr check to qdisc_put() too net: mscc: ocelot: allow unregistered IP multicast flooding kexec_file: drop weak attribute from arch_kexec_apply_relocations[_add] fdt: Update CRC check for rng-seed xen: unexport __init-annotated xen_xlate_map_ballooned_pages() drm: remove drm_fb_helper_modinit powerpc/pseries: wire up rng during setup_arch() kbuild: link vmlinux only once for CONFIG_TRIM_UNUSED_KSYMS (2nd attempt) modpost: fix section mismatch check for exported init/exit sections ARM: cns3xxx: Fix refcount leak in cns3xxx_init ARM: Fix refcount leak in axxia_boot_secondary soc: bcm: brcmstb: pm: pm-arm: Fix refcount leak in brcmstb_pm_probe ARM: exynos: Fix refcount leak in exynos_map_pmu ARM: dts: imx6qdl: correct PU regulator ramp delay powerpc/powernv: wire up rng during setup_arch powerpc/rtas: Allow ibm,platform-dump RTAS call with null buffer address powerpc: Enable execve syscall exit tracepoint xtensa: Fix refcount leak bug in time.c xtensa: xtfpga: Fix refcount leak bug in setup iio: adc: axp288: Override TS pin bias current for some models iio: trigger: sysfs: fix use-after-free on remove iio: gyro: mpu3050: Fix the error handling in mpu3050_power_up() iio: accel: mma8452: ignore the return value of reset operation iio:accel:bma180: rearrange iio trigger get and register iio:chemical:ccs811: rearrange iio trigger get and register usb: chipidea: udc: check request status before setting device address xhci: turn off port power in shutdown iio: adc: vf610: fix conversion mode sysfs node name gpio: winbond: Fix error code in winbond_gpio_get() virtio_net: fix xdp_rxq_info bug after suspend/resume igb: Make DMA faster when CPU is active on the PCIe link afs: Fix dynamic root getattr MIPS: Remove repetitive increase irq_err_count x86/xen: Remove undefined behavior in setup_features() erspan: do not assume transport header is always set net/sched: sch_netem: Fix arithmetic in netem_dump() for 32-bit platforms bonding: ARP monitor spams NETDEV_NOTIFY_PEERS notifiers USB: serial: option: add Quectel RM500K module support USB: serial: option: add Quectel EM05-G modem USB: serial: option: add Telit LE910Cx 0x1250 composition random: quiet urandom warning ratelimit suppression message dm era: commit metadata in postsuspend after worker stops ata: libata: add qc->flags in ata_qc_complete_template tracepoint ALSA: hda/realtek: Add quirk for Clevo PD70PNT ALSA: hda/conexant: Fix missing beep setup ALSA: hda/via: Fix missing beep setup random: schedule mix_interrupt_randomness() less often vt: drop old FONT ioctls Linux 4.19.249 Revert "hwmon: Make chip parameter for with_info API mandatory" tcp: drop the hash_32() part from the index calculation tcp: increase source port perturb table to 2^16 tcp: dynamically allocate the perturb table used by source ports tcp: add small random increments to the source port tcp: use different parts of the port_offset for index and offset tcp: add some entropy in __inet_hash_connect() xprtrdma: fix incorrect header size calculations usb: gadget: u_ether: fix regression in setting fixed MAC address s390/mm: use non-quiescing sske for KVM switch to keyed guest powerpc/mm: Switch obsolete dssall to .long RISC-V: fix barrier() use in <vdso/processor.h> net: openvswitch: fix leak of nested actions net: openvswitch: fix misuse of the cached connection on tuple changes virtio-pci: Remove wrong address verification in vp_del_vqs() ext4: add reserved GDT blocks check ext4: make variable "count" signed ext4: fix bug_on ext4_mb_use_inode_pa serial: 8250: Store to lsr_save_flags after lsr read usb: gadget: lpc32xx_udc: Fix refcount leak in lpc32xx_udc_probe usb: dwc2: Fix memory leak in dwc2_hcd_init USB: serial: io_ti: add Agilent E5805A support USB: serial: option: add support for Cinterion MV31 with new baseline comedi: vmk80xx: fix expression for tx buffer size irqchip/gic-v3: Fix refcount leak in gic_populate_ppi_partitions irqchip/gic/realview: Fix refcount leak in realview_gic_of_init faddr2line: Fix overlapping text section failures, the sequel certs/blacklist_hashes.c: fix const confusion in certs blacklist arm64: ftrace: fix branch range checks net: bgmac: Fix an erroneous kfree() in bgmac_remove() mlxsw: spectrum_cnt: Reorder counter pools misc: atmel-ssc: Fix IRQ check in ssc_probe tty: goldfish: Fix free_irq() on remove i40e: Fix call trace in setup_tx_descriptors i40e: Fix adding ADQ filter to TC0 pNFS: Don't keep retrying if the server replied NFS4ERR_LAYOUTUNAVAILABLE random: credit cpu and bootloader seeds by default net: ethernet: mtk_eth_soc: fix misuse of mem alloc interface netdev[napi]_alloc_frag ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg nfc: nfcmrvl: Fix memory leak in nfcmrvl_play_deferred virtio-mmio: fix missing put_device() when vm_cmdline_parent registration failed scsi: pmcraid: Fix missing resource cleanup in error case scsi: ipr: Fix missing/incorrect resource cleanup in error case scsi: lpfc: Fix port stuck in bypassed state after LIP in PT2PT topology scsi: vmw_pvscsi: Expand vcpuHint to 16 bits ASoC: wm_adsp: Fix event generation for wm_adsp_fw_put() ASoC: es8328: Fix event generation for deemphasis control ASoC: wm8962: Fix suspend while playing music ata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo() ASoC: cs42l56: Correct typo in minimum level for SX volume controls ASoC: cs42l52: Correct TLV for Bypass Volume ASoC: cs53l30: Correct number of volume levels on SX controls ASoC: cs42l52: Fix TLV scales for mixer controls powerpc/kasan: Silence KASAN warnings in __get_wchan() random: account for arch randomness in bits random: mark bootloader randomness code as __init random: avoid checking crng_ready() twice in random_init() crypto: drbg - make reseeding from get_random_bytes() synchronous crypto: drbg - always try to free Jitter RNG instance crypto: drbg - move dynamic ->reseed_threshold adjustments to __drbg_seed() crypto: drbg - track whether DRBG was seeded with !rng_is_initialized() crypto: drbg - prepare for more fine-grained tracking of seeding state crypto: drbg - always seeded with SP800-90B compliant noise source crypto: drbg - add FIPS 140-2 CTRNG for noise source Revert "random: use static branch for crng_ready()" random: check for signals after page of pool writes random: wire up fops->splice_{read,write}_iter() random: convert to using fops->write_iter() random: move randomize_page() into mm where it belongs random: move initialization functions out of hot pages random: use proper return types on get_random_{int,long}_wait() random: remove extern from functions in header random: use static branch for crng_ready() random: credit architectural init the exact amount random: handle latent entropy and command line from random_init() random: use proper jiffies comparison macro random: remove ratelimiting for in-kernel unseeded randomness random: avoid initializing twice in credit race random: use symbolic constants for crng_init states siphash: use one source of truth for siphash permutations random: help compiler out with fast_mix() by using simpler arguments random: do not use input pool from hard IRQs random: order timer entropy functions below interrupt functions random: do not pretend to handle premature next security model random: do not use batches when !crng_ready() random: insist on random_get_entropy() existing in order to simplify xtensa: use fallback for random_get_entropy() instead of zero sparc: use fallback for random_get_entropy() instead of zero um: use fallback for random_get_entropy() instead of zero x86/tsc: Use fallback for random_get_entropy() instead of zero nios2: use fallback for random_get_entropy() instead of zero arm: use fallback for random_get_entropy() instead of zero mips: use fallback for random_get_entropy() instead of just c0 random m68k: use fallback for random_get_entropy() instead of zero timekeeping: Add raw clock fallback for random_get_entropy() powerpc: define get_cycles macro for arch-override alpha: define get_cycles macro for arch-override parisc: define get_cycles macro for arch-override s390: define get_cycles macro for arch-override ia64: define get_cycles macro for arch-override init: call time_init() before rand_initialize() random: fix sysctl documentation nits random: document crng_fast_key_erasure() destination possibility random: make random_get_entropy() return an unsigned long random: check for signals every PAGE_SIZE chunk of /dev/[u]random random: check for signal_pending() outside of need_resched() check random: do not allow user to keep crng key around on stack random: do not split fast init input in add_hwgenerator_randomness() random: mix build-time latent entropy into pool at init random: re-add removed comment about get_random_{u32,u64} reseeding random: treat bootloader trust toggle the same way as cpu trust toggle random: skip fast_init if hwrng provides large chunk of entropy random: check for signal and try earlier when generating entropy random: reseed more often immediately after booting random: make consistent usage of crng_ready() random: use SipHash as interrupt entropy accumulator random: replace custom notifier chain with standard one random: don't let 644 read-only sysctls be written to random: give sysctl_random_min_urandom_seed a more sensible value random: do crng pre-init loading in worker rather than irq random: unify cycles_t and jiffies usage and types random: cleanup UUID handling random: only wake up writers after zap if threshold was passed random: round-robin registers as ulong, not u32 random: clear fast pool, crng, and batches in cpuhp bring up random: pull add_hwgenerator_randomness() declaration into random.h random: check for crng_init == 0 in add_device_randomness() random: unify early init crng load accounting random: do not take pool spinlock at boot random: defer fast pool mixing to worker random: rewrite header introductory comment random: group sysctl functions random: group userspace read/write functions random: group entropy collection functions random: group entropy extraction functions random: group initialization wait functions random: remove whitespace and reorder includes random: remove useless header comment random: introduce drain_entropy() helper to declutter crng_reseed() random: deobfuscate irq u32/u64 contributions random: add proper SPDX header random: remove unused tracepoints random: remove ifdef'd out interrupt bench random: tie batched entropy generation to base_crng generation random: zero buffer after reading entropy from userspace random: remove outdated INT_MAX >> 6 check in urandom_read() random: use hash function for crng_slow_load() random: absorb fast pool into input pool after fast load random: do not xor RDRAND when writing into /dev/random random: ensure early RDSEED goes through mixer on init random: inline leaves of rand_initialize() random: use RDSEED instead of RDRAND in entropy extraction random: fix locking in crng_fast_load() random: remove batched entropy locking random: remove use_input_pool parameter from crng_reseed() random: make credit_entropy_bits() always safe random: always wake up entropy writers after extraction random: use linear min-entropy accumulation crediting random: simplify entropy debiting random: use computational hash for entropy extraction random: only call crng_finalize_init() for primary_crng random: access primary_pool directly rather than through pointer random: continually use hwgenerator randomness random: simplify arithmetic function flow in account() random: access input_pool_data directly rather than through pointer random: cleanup fractional entropy shift constants random: prepend remaining pool constants with POOL_ random: de-duplicate INPUT_POOL constants random: remove unused OUTPUT_POOL constants random: rather than entropy_store abstraction, use global random: remove unused extract_entropy() reserved argument random: remove incomplete last_data logic random: cleanup integer types random: cleanup poolinfo abstraction random: fix typo in comments random: don't reset crng_init_cnt on urandom_read() random: avoid superfluous call to RDRAND in CRNG extraction random: early initialization of ChaCha constants random: initialize ChaCha20 constants with correct endianness random: use IS_ENABLED(CONFIG_NUMA) instead of ifdefs random: harmonize "crng init done" messages random: mix bootloader randomness into pool random: do not re-init if crng_reseed completes before primary init random: do not sign extend bytes for rotation when mixing random: use BLAKE2s instead of SHA1 in extraction random: remove unused irq_flags argument from add_interrupt_randomness() random: document add_hwgenerator_randomness() with other input functions crypto: blake2s - adjust include guard naming crypto: blake2s - include <linux/bug.h> instead of <asm/bug.h> MAINTAINERS: co-maintain random.c random: remove dead code left over from blocking pool random: avoid arch_get_random_seed_long() when collecting IRQ randomness random: add arch_get_random_*long_early() powerpc: Use bool in archrandom.h linux/random.h: Mark CONFIG_ARCH_RANDOM functions __must_check linux/random.h: Use false with bool linux/random.h: Remove arch_has_random, arch_has_random_seed s390: Remove arch_has_random, arch_has_random_seed powerpc: Remove arch_has_random, arch_has_random_seed x86: Remove arch_has_random, arch_has_random_seed random: avoid warnings for !CONFIG_NUMA builds random: split primary/secondary crng init paths random: remove some dead code of poolinfo random: fix typo in add_timer_randomness() random: Add and use pr_fmt() random: convert to ENTROPY_BITS for better code readability random: remove unnecessary unlikely() random: remove kernel.random.read_wakeup_threshold random: delete code to pull data into pools random: remove the blocking pool random: fix crash on multiple early calls to add_bootloader_randomness() char/random: silence a lockdep splat with printk() random: make /dev/random be almost like /dev/urandom random: ignore GRND_RANDOM in getentropy(2) random: add GRND_INSECURE to return best-effort non-cryptographic bytes random: Add a urandom_read_nowait() for random APIs that don't warn random: Don't wake crng_init_wait when crng_init == 1 lib/crypto: sha1: re-roll loops to reduce code size lib/crypto: blake2s: move hmac construction into wireguard crypto: blake2s - generic C library implementation and selftest Revert "hwrng: core - Freeze khwrng thread during suspend" char/random: Add a newline at the end of the file random: Use wait_event_freezable() in add_hwgenerator_randomness() fdt: add support for rng-seed random: Support freezable kthreads in add_hwgenerator_randomness() random: fix soft lockup when trying to read from an uninitialized blocking pool latent_entropy: avoid build error when plugin cflags are not set random: document get_random_int() family random: move rand_initialize() earlier random: only read from /dev/random after its pool has received 128 bits drivers/char/random.c: make primary_crng static drivers/char/random.c: remove unused stuct poolinfo::poolbits drivers/char/random.c: constify poolinfo_table 9p: missing chunk of "fs/9p: Don't update file type when updating file attributes" Linux 4.19.248 x86/speculation/mmio: Print SMT warning KVM: x86/speculation: Disable Fill buffer clear within guests x86/speculation/mmio: Reuse SRBDS mitigation for SBDS x86/speculation/srbds: Update SRBDS mitigation selection x86/speculation/mmio: Add sysfs reporting for Processor MMIO Stale Data x86/speculation/mmio: Enable CPU Fill buffer clearing on idle x86/bugs: Group MDS, TAA & Processor MMIO Stale Data mitigations x86/speculation/mmio: Add mitigation for Processor MMIO Stale Data x86/speculation: Add a common function for MD_CLEAR mitigation update x86/speculation/mmio: Enumerate Processor MMIO Stale Data bug Documentation: Add documentation for Processor MMIO Stale Data x86/cpu: Add another Alder Lake CPU to the Intel family x86/cpu: Add Lakefield, Alder Lake and Rocket Lake models to the to Intel CPU family x86/cpu: Add Jasper Lake to Intel family cpu/speculation: Add prototype for cpu_show_srbds() x86/cpu: Add Elkhart Lake to Intel family Change-Id: I95c9388d6966feac7ba29518774efd9ca56edd3e Signed-off-by: UtsavBalar1231 <utsavbalar1231@gmail.com> Conflicts: drivers/char/Kconfig mm/memory.c |
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.. | ||
00-INDEX | ||
abi.txt | ||
fs.txt | ||
kernel.txt | ||
net.txt | ||
README | ||
sunrpc.txt | ||
user.txt | ||
vm.txt |
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 :-)