diff options
| author | Benjamin Berg <benjamin@sipsolutions.net> | 2024-07-03 15:45:28 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2024-07-03 17:09:49 +0200 |
| commit | 76ed9158e1d474e963fc59da7a461b27a2212c5a (patch) | |
| tree | 815dd1fd2568cdcc27d75178249cc809027ca80b /arch/um/kernel/exec.c | |
| parent | 542dc79f6ea601788704a79ff54283c2bea265e9 (diff) | |
um: Rework syscall handling
Rework syscall handling to be platform independent. Also create a clean
split between queueing of syscalls and flushing them out, removing the
need to keep state in the code that triggers the syscalls.
The code adds syscall_data_len to the global mm_id structure. This will
be used later to allow surrounding code to track whether syscalls still
need to run and if errors occurred.
Signed-off-by: Benjamin Berg <benjamin@sipsolutions.net>
Link: https://patch.msgid.link/20240703134536.1161108-5-benjamin@sipsolutions.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'arch/um/kernel/exec.c')
| -rw-r--r-- | arch/um/kernel/exec.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c index 827a0d3fa589..5c8836b012e9 100644 --- a/arch/um/kernel/exec.c +++ b/arch/um/kernel/exec.c @@ -22,15 +22,11 @@ void flush_thread(void) { - void *data = NULL; - int ret; - arch_flush_thread(¤t->thread.arch); - ret = unmap(¤t->mm->context.id, 0, TASK_SIZE, 1, &data); - if (ret) { - printk(KERN_ERR "%s - clearing address space failed, err = %d\n", - __func__, ret); + unmap(¤t->mm->context.id, 0, TASK_SIZE); + if (syscall_stub_flush(¤t->mm->context.id) < 0) { + printk(KERN_ERR "%s - clearing address space failed", __func__); force_sig(SIGKILL); } get_safe_registers(current_pt_regs()->regs.gp, |