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Kirill Smelkov
linux
Commits
ad625ee4
Commit
ad625ee4
authored
Jul 24, 2002
by
Thunder From The Hill
Committed by
Linus Torvalds
Jul 24, 2002
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[PATCH] cli-sti-removal.txt fixup
Things look rather like this..
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c482e28f
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Documentation/cli-sti-removal.txt
View file @
ad625ee4
...
@@ -96,8 +96,8 @@ released.
...
@@ -96,8 +96,8 @@ released.
drivers that want to disable local interrupts (interrupts on the
drivers that want to disable local interrupts (interrupts on the
current CPU), can use the following five macros:
current CPU), can use the following five macros:
local_irq_disable(), local_irq_enable(), local_
irq_save
(flags),
local_irq_disable(), local_irq_enable(), local_
save_flags
(flags),
local_irq_save
_off
(flags), local_irq_restore(flags)
local_irq_save(flags), local_irq_restore(flags)
but beware, their meaning and semantics are much simpler, far from
but beware, their meaning and semantics are much simpler, far from
that of the old cli(), sti(), save_flags(flags) and restore_flags(flags)
that of the old cli(), sti(), save_flags(flags) and restore_flags(flags)
...
@@ -107,11 +107,11 @@ SMP meaning:
...
@@ -107,11 +107,11 @@ SMP meaning:
local_irq_enable() => turn local IRQs on
local_irq_enable() => turn local IRQs on
local_
irq_save(flags)
=> save the current IRQ state into flags. The
local_
save_flags(flags)
=> save the current IRQ state into flags. The
state can be on or off. (on some
state can be on or off. (on some
architectures there's even more bits in it.)
architectures there's even more bits in it.)
local_irq_save
_off(flags)
=> save the current IRQ state into flags and
local_irq_save
(flags)
=> save the current IRQ state into flags and
disable interrupts.
disable interrupts.
local_irq_restore(flags) => restore the IRQ state from flags.
local_irq_restore(flags) => restore the IRQ state from flags.
...
...
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