syscall.sh / alpha / umount

umount

unmount filesystem

sys_umount(char *name, int flags)

This syscall was removed in Linux 5.1.

number	22 (0x16)
abi	common
entry point	`sys_umount`
since	Linux 5.0
removed in	Linux 5.1
man page	umount(2)
source	elixir.bootlin.com

Registers

register	value
`v0`	22, the syscall number
`a0`	char *name
`a1`	int flags
`v0`	the return value

Then run callsys to enter the kernel.

Same syscall on other architectures

x86 22
ppc 22
s390x 22
mipso32 4022
m68k 22
microblaze 22
sh 22
sparc 159
sparc64 159
xtensa 176

Get this as JSON: https://api.syscall.sh/v2/syscalls/alpha/umount