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uml: simplify helper stack handling

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run_helper and run_helper_thread had arguments which were the same in all
callers.  run_helper's stack_out was always NULL and run_helper_thread's
stack_order was always 0.  These are now gone, and the constants folded
into the code.

Also fixed leaks of the helper stack in the AIO and SIGIO code.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jeff Dike
2007-07-15 23:38:56 -07:00
committed by Linus Torvalds
parent 42a359e31a
commit c43990162f
13 changed files with 36 additions and 37 deletions
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arch/um/drivers/net_user.c
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@@ -187,7 +187,7 @@ static int change_tramp(char **argv, char *output, int output_len)
}
pe_data.close_me = fds[0];
pe_data.stdout = fds[1];
pid = run_helper(change_pre_exec, &pe_data, argv, NULL);
pid = run_helper(change_pre_exec, &pe_data, argv);
if (pid > 0) /* Avoid hang as we won't get data in failure case. */
read_output(fds[0], output, output_len);