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s390: rename PIF_SYSCALL_RESTART to PIF_EXECVE_PGSTE_RESTART

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PIF_SYSCALL_RESTART is now only used to restart execve when loading
PGSTE binaries. Rename the flag to reflect that, and avoid people
thinking that this bit has anything to do with generic syscall
restarting.

Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Sven Schnelle
2021-06-30 14:02:41 +02:00
committed by Vasily Gorbik
parent e3c7a8d7f4
commit d26a357fe8
3 changed files with 11 additions and 10 deletions
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3
arch/s390/kernel/syscall.c
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@@ -134,6 +134,7 @@ static void do_syscall(struct pt_regs *regs)
* work, the ptrace code sets PIF_SYSCALL_RET_SET, which is checked here
* and if set, the syscall will be skipped.
*/
if (unlikely(test_and_clear_pt_regs_flag(regs, PIF_SYSCALL_RET_SET)))
goto out;
regs->gprs[2] = -ENOSYS;
@@ -141,7 +142,7 @@ static void do_syscall(struct pt_regs *regs)
goto out;
do {
regs->gprs[2] = current->thread.sys_call_table[nr](regs);
} while (test_and_clear_pt_regs_flag(regs, PIF_SYSCALL_RESTART));
} while (test_and_clear_pt_regs_flag(regs, PIF_EXECVE_PGSTE_RESTART));
out:
syscall_exit_to_user_mode_work(regs);
}