diff options
| author | Linus Walleij <linusw@kernel.org> | 2026-06-30 18:05:56 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2026-08-05 16:48:11 +0100 |
| commit | bb3b2cfeb206f5b10b859e134651b54120e3f530 (patch) | |
| tree | 6717fcea088ba5c5f15002a48101fa2537135bf2 /include/asm-generic/mcs_spinlock.h | |
| download | linux-stable-bb3b2cfeb206f5b10b859e134651b54120e3f530.tar.gz linux-stable-bb3b2cfeb206f5b10b859e134651b54120e3f530.zip | |
ARM: 9480/1: entry: expand comment in __switch_tografted
As per discussion between the developers in the mail thread
linked, expand the comment in __switch_to so that readers
of the code understand what is going on.
Suggested-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'include/asm-generic/mcs_spinlock.h')
| -rw-r--r-- | include/asm-generic/mcs_spinlock.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/asm-generic/mcs_spinlock.h b/include/asm-generic/mcs_spinlock.h new file mode 100644 index 000000000..39c94012b --- /dev/null +++ b/include/asm-generic/mcs_spinlock.h @@ -0,0 +1,19 @@ +#ifndef __ASM_MCS_SPINLOCK_H +#define __ASM_MCS_SPINLOCK_H + +struct mcs_spinlock { + struct mcs_spinlock *next; + int locked; /* 1 if lock acquired */ + int count; /* nesting count, see qspinlock.c */ +}; + +/* + * Architectures can define their own: + * + * arch_mcs_spin_lock_contended(l) + * arch_mcs_spin_unlock_contended(l) + * + * See kernel/locking/mcs_spinlock.c. + */ + +#endif /* __ASM_MCS_SPINLOCK_H */ |