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mm/memory-failure: remove obsolete comment in kill_proc()

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When user sets SIGBUS to SIG_IGN, it won't cause loop now.  For action
required mce error, SIGBUS cannot be blocked.  Also when a hwpoisoned page
is re-accessed, kill_accessing_process() will be called to kill the
process.

Link: https://lkml.kernel.org/r/20240612071835.157004-13-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Borislav Petkov (AMD) <bp@alien8.de>
Cc: David Hildenbrand <david@redhat.com>
Cc: kernel test robot <lkp@intel.com>
Cc: Naoya Horiguchi <nao.horiguchi@gmail.com>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Miaohe Lin 2024-06-12 15:18:34 +08:00 committed by Andrew Morton
parent b71340ef56
commit d49f2366e9
1 changed files with 0 additions and 2 deletions
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mm/memory-failure.c
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@ -354,8 +354,6 @@ static int kill_proc(struct to_kill *tk, unsigned long pfn, int flags)
* PF_MCE_EARLY set. * PF_MCE_EARLY set.
* Don't use force here, it's convenient if the signal * Don't use force here, it's convenient if the signal
* can be temporarily blocked. * can be temporarily blocked.
* This could cause a loop when the user sets SIGBUS
* to SIG_IGN, but hopefully no one will do that?
*/ */
ret = send_sig_mceerr(BUS_MCEERR_AO, (void __user *)tk->addr, ret = send_sig_mceerr(BUS_MCEERR_AO, (void __user *)tk->addr,
addr_lsb, t); addr_lsb, t);