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b2a78fec34
linux/Documentation
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Damien Le Moal b2a78fec34 zloop: add max_open_zones option 
Introduce the new max_open_zones option to allow specifying a limit on
the maximum number of open zones of a zloop device. This change allows
creating a zloop device that can more closely mimick the characteristics
of a physical SMR drive.

When set to a non zero value, only up to max_open_zones zones can be in
the implicit open (BLK_ZONE_COND_IMP_OPEN) and explicit open
(BLK_ZONE_COND_EXP_OPEN) conditions at any time. The transition to the
implicit open condition of a zone on a write operation can result in an
implicit close of an already implicitly open zone. This is handled in
the function zloop_do_open_zone(). This function also handles
transitions to the explicit open condition. Implicit close transitions
are handled using an LRU ordered list of open zones which is managed
using the helper functions zloop_lru_rotate_open_zone() and
zloop_lru_remove_open_zone().

Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://patch.msgid.link/20260326203245.946830-1-dlemoal@kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2026-03-31 08:33:28 -06:00
..
ABI nvme: Allow reauth from sysfs 2026-03-27 07:35:03 -07:00
accel Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
accounting delayacct: add timestamp of delay max 2026-01-31 16:16:06 -08:00
admin-guide zloop: add max_open_zones option 2026-03-31 08:33:28 -06:00
arch RISC-V updates for v7.0 2026-02-12 19:17:44 -08:00
block block: remove bio_last_bvec_all 2026-01-26 21:07:48 -07:00
bpf bpf-next-7.0 2026-02-10 11:26:21 -08:00
cdrom Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
core-api A handful of small, late-arriving documentation fixes. 2026-02-15 10:47:59 -08:00
cpu-freq
crypto
dev-tools Documentation: Coccinelle: document debug log handling 2026-02-21 17:22:45 +01:00
devicetree hwmon fixes for v7.0-rc3 2026-03-07 08:39:59 -08:00
doc-guide Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
driver-api dmaengine updates for v7.0 2026-02-17 11:47:17 -08:00
edac
fault-injection Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
fb Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
features s390: Document s390 stackprotector support 2026-02-03 12:48:27 +01:00
filesystems overlayfs updates for 7.0 2026-02-17 15:08:24 -08:00
firmware_class
firmware-guide docs: fix 're-use' -> 'reuse' in documentation 2026-02-02 09:54:15 -07:00
fpga Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
gpu drm for 7.0-rc1 2026-02-11 12:55:44 -08:00
hid
hwmon Revert "hwmon: add SMARC-sAM67 support" 2026-02-24 07:25:26 -08:00
i2c Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
iio
images
infiniband Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
input docs: fix 're-use' -> 'reuse' in documentation 2026-02-02 09:54:15 -07:00
isdn Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
kbuild Kbuild/Kconfig updates for 7.0 2026-02-11 13:40:35 -08:00
kernel-hacking
leds docs: leds: Document TI LP5812 LED driver 2026-02-04 09:23:37 +00:00
litmus-tests
livepatch Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
locking Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
maintainer
mhi Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
misc-devices TTY / Serial driver updates for 7.0-rc1 2026-02-17 09:30:52 -08:00
mm A handful of small, late-arriving documentation fixes. 2026-02-15 10:47:59 -08:00
netlabel Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
netlink nfsd-7.0 fixes: 2026-03-02 09:05:20 -08:00
networking ipv6: icmp: remove obsolete code in icmpv6_xrlim_allow() 2026-02-18 16:46:36 -08:00
nvdimm
nvme
PCI Networking changes for 7.0 2026-02-11 19:31:52 -08:00
pcmcia Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
peci Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
power power supply and reset changes for the 7.0 series 2026-02-12 18:24:37 -08:00
process A handful of small, late-arriving documentation fixes. 2026-02-15 10:47:59 -08:00
RCU A slightly calmer cycle for docs this time around, though there is still a 2026-02-09 20:53:18 -08:00
rust Rust changes for v6.20 / v7.0 2026-02-10 11:53:01 -08:00
scheduler bpf-next-7.0 2026-02-10 11:26:21 -08:00
scsi SCSI misc on 20260212 2026-02-12 15:43:02 -08:00
security docs: trusted-encryped: add PKWM as a new trust source 2026-01-30 09:27:27 +05:30
sound ALSA: doc: usb-audio: Add doc for QUIRK_FLAG_SKIP_IFACE_SETUP 2026-03-03 07:35:24 +01:00
sphinx docs: automarkup.py: Skip common English words as C identifiers 2026-01-27 10:35:57 -07:00
sphinx-includes Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
sphinx-static docs: custom.css: add CSS for python 2026-01-23 11:37:38 -07:00
spi spi: Updates for v7.0 2026-02-11 09:43:43 -08:00
staging
sunrpc/xdr Add RPC language definition of NFSv4 POSIX ACL extension 2026-01-29 09:48:33 -05:00
target Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
tee Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
timers Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
tools RTLA patches for v7.0 2026-02-12 14:31:02 -08:00
trace Char/Misc/IIO driver changes for 7.0-rc1 2026-02-17 09:11:04 -08:00
translations mm.git review status for linus..mm-stable 2026-02-12 11:32:37 -08:00
usb USB / Thunderbolt changes for 7.0-rc1 2026-02-17 09:36:43 -08:00
userspace-api Char/Misc/IIO driver changes for 7.0-rc1 2026-02-17 09:11:04 -08:00
virt KVM: always define KVM_CAP_SYNC_MMU 2026-02-28 15:31:35 +01:00
w1 Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
watchdog linux-watchdog 6.20-rc1 tag 2026-02-16 12:21:22 -08:00
wmi platform-drivers-x86 for v7.0-1 2026-02-13 15:39:15 -08:00
.gitignore
.renames.txt net: ethernet: neterion: s2io: remove unused driver 2026-01-28 20:08:07 -08:00
atomic_bitops.txt
atomic_t.txt
Changes
CodingStyle
conf.py Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
docutils.conf
index.rst
Kconfig
Makefile
memory-barriers.txt
SubmittingPatches
subsystem-apis.rst