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Message-Id: <1207598345-14295-4-git-send-email-bfields@citi.umich.edu> Date: Mon, 7 Apr 2008 15:59:05 -0400 From: "J. Bruce Fields" <bfields@...i.umich.edu> To: Jon Corbet <corbet@....net> Cc: Randy Dunlap <rdunlap@...otime.net>, linux-kernel@...r.kernel.org, "J. Bruce Fields" <bfields@...i.umich.edu> Subject: [PATCH] Spell out behavior of atomic_dec_and_lock() in kerneldoc A little more detail here wouldn't hurt. Signed-off-by: J. Bruce Fields <bfields@...i.umich.edu> --- include/linux/spinlock.h | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h index 576a5f7..1129ee0 100644 --- a/include/linux/spinlock.h +++ b/include/linux/spinlock.h @@ -341,6 +341,9 @@ static inline void double_spin_unlock(spinlock_t *l1, spinlock_t *l2, * atomic_dec_and_lock - lock on reaching reference count zero * @atomic: the atomic counter * @lock: the spinlock in question + * + * Decrements @atomic by 1. If the result is 0, returns true and locks + * @lock. Returns false for all other cases. */ extern int _atomic_dec_and_lock(atomic_t *atomic, spinlock_t *lock); #define atomic_dec_and_lock(atomic, lock) \ -- 1.5.5.rc1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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