kcsan_end_scoped_access(9)

🌸 NAME 🌸

Hiii bestie!! Welcome to kcsan_end_scoped_access(9) from the Kernel API Manual — this is the “end scoped access” page, and it’s literally here to close out a scoped access. Periodt. 💅

✨ SYNOPSIS ✨

void kcsan_end_scoped_access (struct kcsan_scoped_access *sa );

🎀 ARGUMENTS 🎀

• sa — a previously initialized struct kcsan_scoped_access. Like, it’s the scoped-access struct you already set up, no cap. 🫶

🦋 DESCRIPTION 🦋

Okay so here’s the tea: this function ends a scoped access, which will stop KCSAN checking the memory range. Requires that kcsan_begin_scoped_access was previously called once for sa. That’s the whole vibe — end the scope, KCSAN stops checking, slay. ✨

Lowkey important: kcsan_begin_scoped_access has to have been called once for sa before this. Don’t skip the setup, bestie. 💅

👑 SEE ALSO 👑

Kernel file ./include/linux/kcsan-checks.h and its iconic friends:

• __kcsan_check_access(9)
• __kcsan_mb(9)
• __kcsan_wmb(9)
• __kcsan_rmb(9)
• __kcsan_release(9)
• kcsan_disable_current(9)
• kcsan_enable_current(9)
• kcsan_nestable_atomic_begin(9)
• kcsan_nestable_atomic_end(9)
• kcsan_flat_atomic_begin(9)
• kcsan_flat_atomic_end(9)
• kcsan_atomic_next(9)
• kcsan_set_access_mask(9)
• kcsan_begin_scoped_access(9)
• __kcsan_check_read(9)
• __kcsan_check_write(9)
• __kcsan_check_read_write(9)
• kcsan_check_read(9)
• kcsan_check_write(9)
• kcsan_check_read_write(9)
• ASSERT_EXCLUSIVE_WRITER(9)
• ASSERT_EXCLUSIVE_WRITER_SCOPED(9)
• ASSERT_EXCLUSIVE_ACCESS(9)
• ASSERT_EXCLUSIVE_ACCESS_SCOPED(9)
• ASSERT_EXCLUSIVE_BITS(9)

💖 Signing off from ./include/linux, October 2026 edition of kcsan_end_scoped_access(9) — xoxo, your KCSAN bestie 🎀