linux/Documentation
Linus Torvalds 6abaa83c73 f2fs-for-5.15-rc1
In this cycle, we've addressed some performance issues such as lock contention,
 misbehaving compress_cache, allowing extent_cache for compressed files, and new
 sysfs to adjust ra_size for fadvise. In order to diagnose the performance issues
 quickly, we also added an iostat which shows the IO latencies periodically. On
 the stability side, we've found two memory leakage cases in the error path in
 compression flow. And, we've also fixed various corner cases in fiemap, quota,
 checkpoint=disable, zstd, and so on.
 
 Enhancement:
  - avoid long checkpoint latency by releasing nat_tree_lock
  - collect and show iostats periodically
  - support extent_cache for compressed files
  - add a sysfs entry to manage ra_size given fadvise(POSIX_FADV_SEQUENTIAL)
  - report f2fs GC status via sysfs
  - add discard_unit=%s in mount option to handle zoned device
 
 Bug fix:
  - fix two memory leakages when an error happens in the compressed IO flow
  - fix commpress_cache to get the right LBA
  - fix fiemap to deal with compressed case correctly
  - fix wrong EIO returns due to SBI_NEED_FSCK
  - fix missing writes when enabling checkpoint back
  - fix quota deadlock
  - fix zstd level mount option
 
 In addition to the above major updates, we've cleaned up several code paths such
 as dio, unnecessary operations, debugfs/f2fs/status, sanity check, and typos.
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Merge tag 'f2fs-for-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

Pull f2fs updates from Jaegeuk Kim:
 "In this cycle, we've addressed some performance issues such as lock
  contention, misbehaving compress_cache, allowing extent_cache for
  compressed files, and new sysfs to adjust ra_size for fadvise.

  In order to diagnose the performance issues quickly, we also added an
  iostat which shows the IO latencies periodically.

  On the stability side, we've found two memory leakage cases in the
  error path in compression flow. And, we've also fixed various corner
  cases in fiemap, quota, checkpoint=disable, zstd, and so on.

  Enhancements:
   - avoid long checkpoint latency by releasing nat_tree_lock
   - collect and show iostats periodically
   - support extent_cache for compressed files
   - add a sysfs entry to manage ra_size given fadvise(POSIX_FADV_SEQUENTIAL)
   - report f2fs GC status via sysfs
   - add discard_unit=%s in mount option to handle zoned device

  Bug fixes:
   - fix two memory leakages when an error happens in the compressed IO flow
   - fix commpress_cache to get the right LBA
   - fix fiemap to deal with compressed case correctly
   - fix wrong EIO returns due to SBI_NEED_FSCK
   - fix missing writes when enabling checkpoint back
   - fix quota deadlock
   - fix zstd level mount option

  In addition to the above major updates, we've cleaned up several code
  paths such as dio, unnecessary operations, debugfs/f2fs/status, sanity
  check, and typos"

* tag 'f2fs-for-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (46 commits)
  f2fs: should put a page beyond EOF when preparing a write
  f2fs: deallocate compressed pages when error happens
  f2fs: enable realtime discard iff device supports discard
  f2fs: guarantee to write dirty data when enabling checkpoint back
  f2fs: fix to unmap pages from userspace process in punch_hole()
  f2fs: fix unexpected ENOENT comes from f2fs_map_blocks()
  f2fs: fix to account missing .skipped_gc_rwsem
  f2fs: adjust unlock order for cleanup
  f2fs: Don't create discard thread when device doesn't support realtime discard
  f2fs: rebuild nat_bits during umount
  f2fs: introduce periodic iostat io latency traces
  f2fs: separate out iostat feature
  f2fs: compress: do sanity check on cluster
  f2fs: fix description about main_blkaddr node
  f2fs: convert S_IRUGO to 0444
  f2fs: fix to keep compatibility of fault injection interface
  f2fs: support fault injection for f2fs_kmem_cache_alloc()
  f2fs: compress: allow write compress released file after truncate to zero
  f2fs: correct comment in segment.h
  f2fs: improve sbi status info in debugfs/f2fs/status
  ...
2021-09-04 10:48:47 -07:00
..
ABI f2fs-for-5.15-rc1 2021-09-04 10:48:47 -07:00
accounting
admin-guide IOMMU Updates for Linux v5.15 2021-09-03 10:44:35 -07:00
arm Documentation: arm: marvell: Add few missing models and documentation files 2021-07-15 06:33:44 -06:00
arm64 Merge remote-tracking branch 'tip/sched/arm64' into for-next/core 2021-08-31 09:10:00 +01:00
block
bpf libbpf: Rename libbpf documentation index file 2021-08-18 08:45:25 -07:00
cdrom
core-api Merge branch 'akpm' (patches from Andrew) 2021-09-03 10:08:28 -07:00
cpu-freq
crypto
dev-tools Merge branch 'akpm' (patches from Andrew) 2021-09-03 10:08:28 -07:00
devicetree IOMMU Updates for Linux v5.15 2021-09-03 10:44:35 -07:00
doc-guide
driver-api VFIO update for v5.15-rc1 2021-09-02 13:41:33 -07:00
fault-injection Char / Misc driver changes for 5.15-rc1 2021-09-01 08:35:06 -07:00
fb
features Documentation/features/vm: riscv supports THP now 2021-08-12 08:54:33 -06:00
filesystems f2fs-for-5.15-rc1 2021-09-04 10:48:47 -07:00
firmware-guide docs: firmware-guide: acpi: dsd: graph.rst: replace some characters 2021-07-25 14:35:46 -06:00
firmware_class
fpga fpga: fix spelling mistakes 2021-07-21 19:54:21 -07:00
gpu drm for v5.15-rc1 2021-09-01 11:26:46 -07:00
hid
hwmon hwmon: add driver for Aquacomputer D5 Next 2021-08-28 08:53:30 -07:00
i2c Documentation: i2c: add i2c-sysfs into index 2021-08-10 22:58:32 +02:00
ia64
ide
iio
infiniband
input
isdn
kbuild scripts/Makefile.clang: default to LLVM_IAS=1 2021-08-10 09:13:25 +09:00
kernel-hacking
leds Documentation: leds: standartizing LED names 2021-08-20 10:26:24 +02:00
litmus-tests
livepatch
locking
m68k
maintainer
mhi
mips
misc-devices dw-xdata-pcie: Update outdated info and improve text format 2021-04-14 19:47:28 +02:00
netlabel
networking Yet another set of documentation changes: 2021-09-01 18:49:47 -07:00
nios2
nvdimm
openrisc
parisc
PCI PCI: Add 'override_only' field to struct pci_device_id 2021-08-26 10:36:51 -06:00
pcmcia
power
powerpc powerpc/doc: Fix htmldocs errors 2021-08-27 00:56:34 +10:00
process docs: submitting-patches: clarify the role of LKML 2021-07-25 14:45:43 -06:00
RCU doc: Update stallwarn.rst with recent changes 2021-07-20 13:36:33 -07:00
riscv
s390
scheduler
scsi
security
sh
sound Yet another set of documentation changes: 2021-09-01 18:49:47 -07:00
sparc
sphinx docs: sphinx-requirements: Move sphinx_rtd_theme to top 2021-08-12 09:15:38 -06:00
sphinx-static
spi
staging
target
timers
trace Char / Misc driver changes for 5.15-rc1 2021-09-01 08:35:06 -07:00
translations Merge branch 'akpm' (patches from Andrew) 2021-09-03 10:08:28 -07:00
usb docs: usb: fix malformed table 2021-08-05 12:31:51 +02:00
userspace-api media updates for v5.15-rc1 2021-09-01 10:34:52 -07:00
virt Yet another set of documentation changes: 2021-09-01 18:49:47 -07:00
vm doc: hwpoison: correct the support for hugepage 2021-09-03 09:58:15 -07:00
w1
watchdog
x86 x86/reboot: Document how to override DMI platform quirks 2021-08-12 12:06:58 +02:00
xtensa
.gitignore
arch.rst
asm-annotations.rst
atomic_bitops.txt
atomic_t.txt Documentation/atomic_t: Document forward progress expectations 2021-08-04 15:16:47 +02:00
Changes
CodingStyle
conf.py docs: pdfdocs: Teach xeCJK about character classes of quotation marks 2021-08-12 09:13:33 -06:00
COPYING-logo
docutils.conf
dontdiff
index.rst
Kconfig
logo.gif
Makefile
memory-barriers.txt
SubmittingPatches
watch_queue.rst