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whack-a-mole: no need to set_fs(USER_DS) in {start,flush}_thread()

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flush_old_exec() has already done that.  Back on 2011 a bunch of
instances like that had been kicked out, but that hadn't taken
care of then-out-of-tree architectures, obviously, and they served
as reinfection vector...

Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Al Viro 2015-02-23 03:21:31 -05:00
commit a555ad450f
6 changed files with 0 additions and 8 deletions
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2
arch/hexagon/kernel/process.c
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@ -37,8 +37,6 @@
*/
void start_thread(struct pt_regs *regs, unsigned long pc, unsigned long sp)
{
/* Set to run with user-mode data segmentation */
set_fs(USER_DS);
/* We want to zero all data-containing registers. Is this overkill? */
memset(regs, 0, sizeof(*regs));
/* We might want to also zero all Processor registers here */