xtensa: re-wire umount syscall to sys_oldumount
Userspace actually passes single parameter (path name) to the umount syscall, so new umount just fails. Fix it by requesting old umount syscall implementation and re-wiring umount to it. Cc: stable@vger.kernel.org Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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@ -384,7 +384,8 @@ __SYSCALL(174, sys_chroot, 1)
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#define __NR_pivot_root 175
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__SYSCALL(175, sys_pivot_root, 2)
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#define __NR_umount 176
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__SYSCALL(176, sys_umount, 2)
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__SYSCALL(176, sys_oldumount, 1)
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#define __ARCH_WANT_SYS_OLDUMOUNT
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#define __NR_swapoff 177
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__SYSCALL(177, sys_swapoff, 1)
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#define __NR_sync 178
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