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x86: Introduce restart_block->arch_data to remove TS_COMPAT_RESTART

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Save the current_thread_info()->status of X86 in the new
restart_block->arch_data field so TS_COMPAT_RESTART can be removed again.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210201174716.GA17898@redhat.com
This commit is contained in:
Oleg Nesterov
2021-02-01 18:47:16 +01:00
committed by Thomas Gleixner
parent 8c150ba2fb
commit b2e9df850c
3 changed files with 4 additions and 11 deletions
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include/linux/restart_block.h
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@@ -23,6 +23,7 @@ enum timespec_type {
* System call restart block.
*/
struct restart_block {
unsigned long arch_data;
long (*fn)(struct restart_block *);
union {
/* For futex_wait and futex_wait_requeue_pi */