syscall.sh / arm64 / umount2

umount2

unmount filesystem

sys_umount(char *name, int flags)
number39 (0x27)
abicommon
entry pointsys_umount
sinceLinux 3.7
man pageumount2(2)
sourceelixir.bootlin.com

Registers

registervalue
x839, the syscall number
x0char *name
x1int flags
x0the return value

Then run svc #0 to enter the kernel.

Same syscall on other architectures

Get this as JSON: https://api.syscall.sh/v2/syscalls/arm64/umount2