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| author | Kefeng Wang <wangkefeng.wang@huawei.com> | 2026-09-02 21:16:52 +0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-10-01 19:11:59 -0700 |
| commit | 011ee9ff937500e89ac81aa478ef05653e4197c7 (patch) | |
| tree | 52c48f72396184d19aeb7bf54de3c47eef9cf75b /tools | |
| parent | 86ba7ad9929b3b4006cc43643b9405488b764524 (diff) | |
| download | linux-next-011ee9ff937500e89ac81aa478ef05653e4197c7.tar.gz linux-next-011ee9ff937500e89ac81aa478ef05653e4197c7.zip | |
mm: replace PF_KSWAPD flag with kthread_func() check
The preceding commits removed the last consumer that propagated PF_KSWAPD
beyond kswapd itself (XFS btree split worker inheritance). The only
remaining setter of PF_KSWAPD is kswapd(), and every current_is_kswapd()
caller only needs to check whether the current task *is* the kswapd
thread, not whether it inherited the flag.
Replace the flag-based test with kthread_func(current) == kswapd,
freeing the 0x00020000 PF flag bit.
Link: https://lore.kernel.org/20260902131653.1338227-4-wangkefeng.wang@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Shakeel Butt <shakeel.butt@linux.dev>
Acked-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Acked-by: Zi Yan <ziy@nvidia.com>
Cc: Brendan Jackman <brendan.jackman@linux.dev>
Cc: Carlos Maiolino <cem@kernel.org>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: "Darrick J. Wong" <djwong@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/sched_ext/include/scx/common.bpf.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/tools/sched_ext/include/scx/common.bpf.h b/tools/sched_ext/include/scx/common.bpf.h index 22f24ebef8a9..5a28a36c5120 100644 --- a/tools/sched_ext/include/scx/common.bpf.h +++ b/tools/sched_ext/include/scx/common.bpf.h @@ -32,7 +32,6 @@ #define PF_IO_WORKER 0x00000010 /* Task is an IO worker */ #define PF_WQ_WORKER 0x00000020 /* I'm a workqueue worker */ #define PF_KCOMPACTD 0x00010000 /* I am kcompactd */ -#define PF_KSWAPD 0x00020000 /* I am kswapd */ #define PF_KTHREAD 0x00200000 /* I am a kernel thread */ #define PF_EXITING 0x00000004 #define CLOCK_MONOTONIC 1 |