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Barry Song 54f7a49c20 mm: remove the implementation of swap_free() and always use swap_free_nr() 
To streamline maintenance efforts, we propose removing the implementation
of swap_free().  Instead, we can simply invoke swap_free_nr() with nr set
to 1.  swap_free_nr() is designed with a bitmap consisting of only one
long, resulting in overhead that can be ignored for cases where nr equals
1.

A prime candidate for leveraging swap_free_nr() lies within
kernel/power/swap.c.  Implementing this change facilitates the adoption of
batch processing for hibernation.

Link: https://lkml.kernel.org/r/20240529082824.150954-3-21cnbao@gmail.com
Signed-off-by: Barry Song <v-songbaohua@oppo.com>
Suggested-by: "Huang, Ying" <ying.huang@intel.com>
Reviewed-by: "Huang, Ying" <ying.huang@intel.com>
Acked-by: Chris Li <chrisl@kernel.org>
Reviewed-by: Ryan Roberts <ryan.roberts@arm.com>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Len Brown <len.brown@intel.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Andreas Larsson <andreas@gaisler.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Chuanhua Han <hanchuanhua@oppo.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Gao Xiang <xiang@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kairui Song <kasong@tencent.com>
Cc: Khalid Aziz <khalid.aziz@oracle.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Yosry Ahmed <yosryahmed@google.com>
Cc: Yu Zhao <yuzhao@google.com>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-07-03 19:30:01 -07:00
..
bpf
Merge tag 'asm-generic-fixes-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
2024-06-27 10:53:52 -07:00
cgroup
Merge tag 'sched-urgent-2024-05-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2024-05-19 11:38:15 -07:00
configs
Merge tag 'hardening-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2024-05-13 14:14:05 -07:00
debug
…
dma
dma-mapping: benchmark: handle NUMA_NO_NODE correctly
2024-05-23 15:06:48 +02:00
entry
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events
perf/core: Fix missing wakeup when waiting for context reference
2024-06-05 15:52:33 +02:00
futex
…
gcov
gcov: add support for GCC 14
2024-06-15 10:43:06 -07:00
irq
genirq/irqdesc: Prevent use-after-free in irq_find_at_or_after()
2024-05-24 12:49:35 +02:00
kcsan
…
livepatch
…
locking
Merge tag 'leds-next-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds
2024-05-22 10:49:54 -07:00
module
kallsyms: rework symbol lookup return codes
2024-06-27 17:43:40 +02:00
power
mm: remove the implementation of swap_free() and always use swap_free_nr()
2024-07-03 19:30:01 -07:00
printk
Revert "printk: Save console options for add_preferred_console_match()"
2024-06-25 07:58:10 +02:00
rcu
…
sched
Merge tag 'bitmap-for-6.10v2' of https://github.com/norov/linux
2024-05-21 15:29:01 -07:00
time
hrtimer: Prevent queuing of hrtimer without a function callback
2024-06-25 16:54:27 +02:00
trace
kallsyms: rework symbol lookup return codes
2024-06-27 17:43:40 +02:00
.gitignore
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acct.c
…
async.c
…
audit_fsnotify.c
…
audit_tree.c
…
audit_watch.c
…
audit.c
…
audit.h
…
auditfilter.c
ima: Avoid blocking in RCU read-side critical section
2024-06-13 14:26:50 -04:00
auditsc.c
…
backtracetest.c
…
bounds.c
…
capability.c
…
cfi.c
…
compat.c
…
configs.c
…
context_tracking.c
…
cpu_pm.c
…
cpu.c
cpu: Fix broken cmdline "nosmp" and "maxcpus=0"
2024-06-23 20:04:14 +02:00
crash_core.c
Merge tag 'mm-nonmm-stable-2024-05-19-11-56' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2024-05-19 14:02:03 -07:00
crash_reserve.c
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cred.c
…
delayacct.c
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dma.c
…
elfcorehdr.c
…
exec_domain.c
…
exit.c
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
2024-05-23 12:04:36 -07:00
exit.h
…
extable.c
…
fail_function.c
…
fork.c
…
freezer.c
…
gen_kheaders.sh
kheaders: use command -v to test for existence of cpio
2024-05-30 01:13:20 +09:00
groups.c
…
hung_task.c
…
iomem.c
…
irq_work.c
…
jump_label.c
…
kallsyms_internal.h
…
kallsyms_selftest.c
…
kallsyms_selftest.h
…
kallsyms.c
kallsyms: rework symbol lookup return codes
2024-06-27 17:43:40 +02:00
kcmp.c
…
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.kexec
…
Kconfig.locks
…
Kconfig.preempt
…
kcov.c
kcov: don't lose track of remote references during softirqs
2024-06-15 10:43:08 -07:00
kexec_core.c
…
kexec_elf.c
…
kexec_file.c
…
kexec_internal.h
…
kexec.c
…
kheaders.c
…
kprobes.c
kprobe/ftrace: fix build error due to bad function definition
2024-05-17 19:17:55 -07:00
ksyms_common.c
…
ksysfs.c
…
kthread.c
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latencytop.c
…
Makefile
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module_signature.c
…
notifier.c
…
nsproxy.c
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numa.c
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padata.c
…
panic.c
…
params.c
…
pid_namespace.c
zap_pid_ns_processes: clear TIF_NOTIFY_SIGNAL along with TIF_SIGPENDING
2024-06-15 10:43:06 -07:00
pid_sysctl.h
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pid.c
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profile.c
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ptrace.c
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range.c
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reboot.c
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regset.c
…
relay.c
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resource_kunit.c
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resource.c
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rseq.c
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scftorture.c
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scs.c
…
seccomp.c
Merge tag 'sysctl-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/sysctl/sysctl
2024-05-17 17:31:24 -07:00
signal.c
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
2024-05-23 12:04:36 -07:00
smp.c
…
smpboot.c
…
smpboot.h
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softirq.c
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stackleak.c
Merge tag 'sysctl-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/sysctl/sysctl
2024-05-17 17:31:24 -07:00
stacktrace.c
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static_call_inline.c
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static_call.c
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stop_machine.c
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sys_ni.c
syscalls: fix compat_sys_io_pgetevents_time64 usage
2024-06-25 15:57:20 +02:00
sys.c
Merge tag 'riscv-for-linus-6.10-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
2024-05-22 09:56:00 -07:00
sysctl-test.c
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sysctl.c
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task_work.c
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taskstats.c
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torture.c
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tracepoint.c
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tsacct.c
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ucount.c
Merge tag 'sysctl-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/sysctl/sysctl
2024-05-17 17:31:24 -07:00
uid16.c
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uid16.h
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umh.c
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up.c
…
user_namespace.c
…
user-return-notifier.c
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user.c
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usermode_driver.c
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utsname_sysctl.c
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utsname.c
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vhost_task.c
vhost_task: Handle SIGKILL by flushing work and exiting
2024-05-22 08:31:15 -04:00
vmcore_info.c
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watch_queue.c
…
watchdog_buddy.c
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watchdog_perf.c
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watchdog.c
Merge tag 'mm-nonmm-stable-2024-05-19-11-56' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2024-05-19 14:02:03 -07:00
workqueue_internal.h
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workqueue.c
workqueue: Refactor worker ID formatting and make wq_worker_comm() use full ID string
2024-05-20 13:28:40 -10:00