STRUCT HWSPINLOCK_OPS(9)

okay bestie, welcome to the Kernel API Manual entry for struct hwspinlock_ops 💖 this is the platform-specific hwspinlock handler moment, and yes it’s giving low-level but make it cute ✨

🌸 NAME 🌸

struct hwspinlock_ops — platform-specific hwspinlock handlers 🎀

✨ SYNOPSIS ✨

okay so the struct is literally this, no cap:

       struct hwspinlock_ops {
           int (*trylock)(struct hwspinlock *lock);
           void (*unlock)(struct hwspinlock *lock);
           int (*bust)(struct hwspinlock *lock, unsigned int id);
           void (*relax)(struct hwspinlock *lock);
        };

💫 Members 💫

• trylock — makes a single attempt to take the lock. returns 0 on failure and true on success. may _not_ sleep. no napping on the job 😴🚫
• unlock — releases the lock. always succeed. may _not_ sleep. periodt 💅
• bust — optional, platform-specific bust handler, called by hwspinlock core to bust a specific lock. 💥
• relax — optional, platform-specific relax handler, called by hwspinlock core while spinning on a lock, between two successive invocations of trylock. may _not_ sleep. 🧘‍♀️✨

🦋 SEE ALSO 🦋

Kernel file ./drivers/hwspinlock/hwspinlock_internal.h — struct hwspinlock(9), struct hwspinlock_device(9). go read them, iykyk 👑

mwah 💋 this page is from ./drivers/hwspinlock in the Kernel API Manual, dated October 2026. go off, bestie 💖