Delegate filling out struct siginfo to functions in kernel/signal.c to simplify the code.
Signed-off-by: "Eric W. Biederman" <[email protected]> --- mm/memory-failure.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) diff --git a/mm/memory-failure.c b/mm/memory-failure.c index c5f5f31bd979..4b80ccee4535 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -181,19 +181,16 @@ EXPORT_SYMBOL_GPL(hwpoison_filter); static int kill_proc(struct task_struct *t, unsigned long addr, unsigned long pfn, struct page *page, int flags) { - struct siginfo si; + short addr_lsb; int ret; pr_err("Memory failure: %#lx: Killing %s:%d due to hardware memory corruption\n", pfn, t->comm, t->pid); - si.si_signo = SIGBUS; - si.si_errno = 0; - si.si_addr = (void *)addr; - si.si_addr_lsb = compound_order(compound_head(page)) + PAGE_SHIFT; + addr_lsb = compound_order(compound_head(page)) + PAGE_SHIFT; if ((flags & MF_ACTION_REQUIRED) && t->mm == current->mm) { - si.si_code = BUS_MCEERR_AR; - ret = force_sig_info(SIGBUS, &si, current); + ret = force_sig_mceerr(BUS_MCEERR_AR, (void __user *)addr, + addr_lsb, current); } else { /* * Don't use force here, it's convenient if the signal @@ -201,8 +198,8 @@ static int kill_proc(struct task_struct *t, unsigned long addr, * This could cause a loop when the user sets SIGBUS * to SIG_IGN, but hopefully no one will do that? */ - si.si_code = BUS_MCEERR_AO; - ret = send_sig_info(SIGBUS, &si, t); /* synchronous? */ + ret = send_sig_mceerr(BUS_MCEERR_AO, (void __user *)addr, + addr_lsb, t); /* synchronous? */ } if (ret < 0) pr_info("Memory failure: Error sending signal to %s:%d: %d\n", -- 2.14.1
