freebsd-src/sys
Ryan Libby a216e311a7 vm_pageout_scan_inactive: take a lock break
In vm_pageout_scan_inactive, release the object lock when we go to
refill the scan batch queue so that someone else has a chance to acquire
it.  This improves access latency to the object when the pagedaemon is
processing many consecutive pages from a single object, and also in any
case avoids a hiccup during refill for the last touched object.

Reviewed by:	alc, markj (previous version)
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D45288
2024-05-24 08:52:58 -07:00
..
amd64 Remove COMPAT_FREEBSD4/5/6/7/9 from MINIMAL and FIRECRACKER kernel configurations 2024-05-23 14:30:57 -06:00
arm arm: Use the correct irq when in the hypervisor 2024-05-17 16:07:16 +00:00
arm64 arm64, riscv: remove unused declaration 2024-05-24 10:55:24 -03:00
bsm
cam cam: Drop periph lock when completing I/O with ENOMEM status 2024-05-24 08:32:04 -06:00
cddl Revert "dtrace: make 'ring' and 'fill' policies imply 'noswitch' flag" 2024-04-21 15:17:08 +03:00
compat LinuxKPI: 802.11: lock MO tx/wake_tx_queue() downcalls 2024-05-23 23:43:29 +00:00
conf sys: Build arm64 per-thread SSP with GCC 2024-05-22 08:20:01 +00:00
contrib Fix scn_queue races on very old pools 2024-05-23 12:20:37 -04:00
crypto
ddb sys/ddb: Add hardware breakpoint support to ddb 2024-04-12 09:32:41 +00:00
dev nvme: Count number of alginment splits 2024-05-24 08:32:47 -06:00
dts dts: Bump the freebsd branding version to 6.8 2024-05-06 10:47:26 +02:00
fs Stop treating size 0 as unknown size in vnode_create_vobject(). 2024-05-23 06:08:14 +00:00
gdb sys/gdb: Support hardware breakpoints 2024-04-12 09:32:55 +00:00
geom geom_io: Shift to pause_sbt to eliminate bogus min and update comment. 2024-05-24 08:31:55 -06:00
gnu
i386 Remove COMPAT_FREEBSD4/5/6/7/9 from MINIMAL and FIRECRACKER kernel configurations 2024-05-23 14:30:57 -06:00
isa
kern mqueue: Introduce kern_kmq_timedreceive & kern_kmq_timedsend 2024-05-23 13:40:46 -06:00
kgssapi
libkern
modules mac_do: add a new MAC/do policy and mdo(1) utility 2024-05-22 14:01:41 +02:00
net if_vlan: handle VID conflicts 2024-05-22 09:08:02 +02:00
net80211 net80211: add initial key management suites from 802.11-2016, APIs to register them 2024-05-14 14:39:33 -07:00
netgraph ng_pipe: Do not panic when memory allocations fail 2024-04-24 08:44:50 -04:00
netinet sys/netinet/cc: Switch from deprecated random() to prng32() 2024-05-23 15:10:09 -06:00
netinet6 in6_rmx: remove unnecessary socketvar.h 2024-05-07 14:15:56 -07:00
netipsec libipsec: make const-correct 2024-04-22 22:36:34 -06:00
netlink pf: convert DIOCGETSTATUS to netlink 2024-04-29 16:32:23 +02:00
netpfil pf: always mark states as unlinked before detaching them 2024-05-08 13:19:05 +02:00
netsmb
nfs
nfsclient
nfsserver
nlm
ofed ibcore: Remove the use of NULL_IB_OBJECT 2024-04-12 17:04:23 +00:00
opencrypto
powerpc uio: Use switch statements when handling UIO_READ vs UIO_WRITE 2024-05-10 13:43:36 -07:00
riscv arm64, riscv: remove unused declaration 2024-05-24 10:55:24 -03:00
rpc krpc: Ref cnt the client structures for TLS upcalls 2024-04-26 17:55:24 -07:00
security MAC/do: allow to call setuid if real user id is 0 2024-05-23 12:09:11 +02:00
sys linux: Update linux manpage to mention mqueuefs 2024-05-23 13:40:47 -06:00
teken
tests
tools arm_kernel_bothdr.awk: Update to latest ota 2024-04-16 21:30:17 -06:00
ufs uio: Use switch statements when handling UIO_READ vs UIO_WRITE 2024-05-10 13:43:36 -07:00
vm vm_pageout_scan_inactive: take a lock break 2024-05-24 08:52:58 -07:00
x86 AMD CPUs: update bits and data from CPUID 0x8000_0008 2024-05-15 02:06:23 +03:00
xdr
xen
Makefile
README.md

FreeBSD Kernel Source:

This directory contains the source files and build glue that make up the FreeBSD kernel and its modules, including both original and contributed software.

Kernel configuration files are located in the conf/ subdirectory of each architecture. GENERIC is the configuration used in release builds. NOTES contains documentation of all possible entries. LINT is a compile-only configuration used to maximize build coverage and detect regressions.

Documentation:

Source code documentation is maintained in a set of man pages, under section 9. These pages are located in share/man/man9, from the top-level of the src tree. Consult intro(9) for an overview of existing pages.

Some additional high-level documentation of the kernel is maintained in the Architecture Handbook.

Source Roadmap:

Directory Description
amd64 AMD64 (64-bit x86) architecture support
arm 32-bit ARM architecture support
arm64 64-bit ARM (AArch64) architecture support
cam Common Access Method storage subsystem - cam(4) and ctl(4)
cddl CDDL-licensed optional sources such as DTrace
conf kernel build glue
compat Linux compatibility layer, FreeBSD 32-bit compatibility
contrib 3rd-party imported software such as OpenZFS
crypto crypto drivers
ddb interactive kernel debugger - ddb(4)
fs most filesystems, excluding UFS, NFS, and ZFS
dev device drivers and other arch independent code
gdb kernel remote GDB stub - gdb(4)
geom GEOM framework - geom(4)
i386 i386 (32-bit x86) architecture support
kern main part of the kernel
libkern libc-like and other support functions for kernel use
modules kernel module infrastructure
net core networking code
net80211 wireless networking (IEEE 802.11) - net80211(4)
netgraph graph-based networking subsystem - netgraph(4)
netinet IPv4 protocol implementation - inet(4)
netinet6 IPv6 protocol implementation - inet6(4)
netipsec IPsec protocol implementation - ipsec(4)
netpfil packet filters - ipfw(4), pf(4), and ipfilter(4)
opencrypto OpenCrypto framework - crypto(7)
powerpc PowerPC/POWER (32 and 64-bit) architecture support
riscv 64-bit RISC-V architecture support
security security facilities - audit(4) and mac(4)
sys kernel headers
tests kernel unit tests
ufs Unix File System - ffs(7)
vm virtual memory system
x86 code shared by AMD64 and i386 architectures