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Heming Zhao via Ocfs2-devel 236b9254f8 ocfs2: fix non-auto defrag path not working issue
This fixes three issues on move extents ioctl without auto defrag:

a) In ocfs2_find_victim_alloc_group(), we have to convert bits to block
   first in case of global bitmap.

b) In ocfs2_probe_alloc_group(), when finding enough bits in block
   group bitmap, we have to back off move_len to start pos as well,
   otherwise it may corrupt filesystem.

c) In ocfs2_ioctl_move_extents(), set me_threshold both for non-auto
   and auto defrag paths.  Otherwise it will set move_max_hop to 0 and
   finally cause unexpectedly ENOSPC error.

Currently there are no tools triggering the above issues since
defragfs.ocfs2 enables auto defrag by default.  Tested with manually
changing defragfs.ocfs2 to run non auto defrag path.

Link: https://lkml.kernel.org/r/20230220050526.22020-1-heming.zhao@suse.com
Signed-off-by: Heming Zhao <heming.zhao@suse.com>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-02-27 17:00:15 -08:00
arch We have one small patch to the clk core this time around. It fixes a corner 2023-02-25 15:16:23 -08:00
block Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
certs certs: don't try to update blacklist keys 2023-02-13 10:11:20 +02:00
crypto Networking changes for 6.3. 2023-02-21 18:24:12 -08:00
Documentation We have one small patch to the clk core this time around. It fixes a corner 2023-02-25 15:16:23 -08:00
drivers We have one small patch to the clk core this time around. It fixes a corner 2023-02-25 15:16:23 -08:00
fs ocfs2: fix non-auto defrag path not working issue 2023-02-27 17:00:15 -08:00
include mm/hwpoison: convert TTU_IGNORE_HWPOISON to TTU_HWPOISON 2023-02-27 17:00:14 -08:00
init There is no particular theme here - mainly quick hits all over the tree. 2023-02-23 17:55:40 -08:00
io_uring - Daniel Verkamp has contributed a memfd series ("mm/memfd: add 2023-02-23 17:09:35 -08:00
ipc Merge branch 'work.namespace' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2023-02-24 19:20:07 -08:00
kernel probes cleanup updates for v6.3: 2023-02-25 13:06:28 -08:00
lib lib/zlib: DFLTCC deflate does not write all available bits for Z_NO_FLUSH 2023-02-27 17:00:14 -08:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm mm/hwpoison: convert TTU_IGNORE_HWPOISON to TTU_HWPOISON 2023-02-27 17:00:14 -08:00
net TTY/Serial driver updates for 6.3-rc1 2023-02-24 12:17:14 -08:00
rust Rust changes for v6.3 2023-02-20 10:40:42 -08:00
samples VFIO updates for v6.3-rc1 2023-02-25 11:52:57 -08:00
scripts RISC-V Patches for the 6.3 Merge Window, Part 1 2023-02-25 11:14:08 -08:00
security powerpc updates for 6.3 2023-02-25 11:00:06 -08:00
sound soundwire updates for 6.3 2023-02-24 17:29:52 -08:00
tools virtio,vhost,vdpa: features, fixes 2023-02-25 11:48:02 -08:00
usr usr/gen_init_cpio.c: remove unnecessary -1 values from int file 2022-10-03 14:21:44 -07:00
virt KVM/riscv changes for 6.3 2023-02-15 12:33:28 -05:00
.clang-format iommufd for 6.2 2022-12-14 09:15:43 -08:00
.cocciconfig
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore .gitignore: ignore *.rpm 2022-12-30 17:22:14 +09:00
.mailmap mailmap: map Georgi Djakov's old Linaro address to his current one 2023-02-27 17:00:15 -08:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS There is no particular theme here - mainly quick hits all over the tree. 2023-02-23 17:55:40 -08:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS We have one small patch to the clk core this time around. It fixes a corner 2023-02-25 15:16:23 -08:00
Makefile Devicetree updates for v6.3: 2023-02-24 13:31:53 -08:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.