Eric Lee / linux-smarc-t335x-v3.2

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Commit 363da4022c2753bf4b4b54a1bb9e4527fdcb9d5d

Authored by Oleg Nesterov
Committed by Linus Torvalds
1 parent c70a626d3e
Exists in master and in 4 other branches v3.2_AM335xPSP_04.06.00.11, v3.2_NEWT335xPSP_04.06.00.11, v3.2_SBC_SMARTMEN, v3.2_SMARCT335xPSP_04.06.00.11

call_usermodehelper: no need to unblock signals 

____call_usermodehelper() correctly calls flush_signal_handlers() to set
SIG_DFL, but sigemptyset(->blocked) and recalc_sigpending() are not
needed.

This kthread was forked by workqueue thread, all signals must be unblocked
and ignored, no pending signal is possible.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Showing 1 changed file with 0 additions and 3 deletions Side-by-side Diff

... ... @@ -134,11 +134,8 @@
134 134 struct subprocess_info *sub_info = data;
135 135 int retval;
136 136  
137   - /* Unblock all signals */
138 137 spin_lock_irq(&current->sighand->siglock);
139 138 flush_signal_handlers(current, 1);
140   - sigemptyset(&current->blocked);
141   - recalc_sigpending();
142 139 spin_unlock_irq(&current->sighand->siglock);
143 140  
144 141 /* We can run anywhere, unlike our parent keventd(). */