diff options
| author | Alexander Sverdlin <alexander.sverdlin@siemens.com> | 2022-12-12 17:37:15 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2023-01-11 19:45:26 +0100 |
| commit | 379af13b31fa8a36ad4abd59a5c511f25c5d4d42 (patch) | |
| tree | ef5e8b47f5ec5874b752d097b3ac766a977fae6d /Documentation/translations | |
| parent | genirq: Add might_sleep() to disable_irq() (diff) | |
| download | linux-379af13b31fa8a36ad4abd59a5c511f25c5d4d42.tar.xz linux-379af13b31fa8a36ad4abd59a5c511f25c5d4d42.zip | |
docs: locking: Discourage from calling disable_irq() in atomic
Correct the example in the documentation so that disable_irq() is not being
called in atomic context.
disable_irq() calls sleeping synchronize_irq(), it's not allowed to call
them in atomic context.
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Manfred Spraul <manfred@colorfullife.com>
Cc: linux-doc@vger.kernel.org
Link: https://lore.kernel.org/lkml/87k02wbs2n.ffs@tglx/
Link: https://lore.kernel.org/r/20221212163715.830315-1-alexander.sverdlin@siemens.com
Diffstat (limited to 'Documentation/translations')
| -rw-r--r-- | Documentation/translations/it_IT/kernel-hacking/locking.rst | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/translations/it_IT/kernel-hacking/locking.rst b/Documentation/translations/it_IT/kernel-hacking/locking.rst index b8ecf41273c5..05d362b16bf0 100644 --- a/Documentation/translations/it_IT/kernel-hacking/locking.rst +++ b/Documentation/translations/it_IT/kernel-hacking/locking.rst @@ -1307,11 +1307,11 @@ se i dati vengono occasionalmente utilizzati da un contesto utente o da un'interruzione software. Il gestore d'interruzione non utilizza alcun *lock*, e tutti gli altri accessi verranno fatti così:: - spin_lock(&lock); + mutex_lock(&lock); disable_irq(irq); ... enable_irq(irq); - spin_unlock(&lock); + mutex_unlock(&lock); La funzione disable_irq() impedisce al gestore d'interruzioni d'essere eseguito (e aspetta che finisca nel caso fosse in esecuzione su |