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audit: Migrate to use SYSCALL_WORK flag

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On architectures using the generic syscall entry code the architecture
independent syscall work is moved to flags in thread_info::syscall_work.
This removes architecture dependencies and frees up TIF bits.

Define SYSCALL_WORK_SYSCALL_AUDIT, use it in the generic entry code and
convert the code which uses the TIF specific helper functions to use the
new *_syscall_work() helpers which either resolve to the new mode for users
of the generic entry code or to the TIF based functions for the other
architectures.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Andy Lutomirski <luto@kernel.org>
Link: https://lore.kernel.org/r/20201116174206.2639648-9-krisman@collabora.com
This commit is contained in:
Gabriel Krisman Bertazi
2020-11-16 21:53:16 +01:00
committed by Thomas Gleixner
parent 64eb35f701
commit 785dc4eb7f
4 changed files with 24 additions and 23 deletions
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kernel/auditsc.c
+2 -2
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@@ -952,7 +952,7 @@ int audit_alloc(struct task_struct *tsk)
state = audit_filter_task(tsk, &key);
if (state == AUDIT_DISABLED) {
clear_tsk_thread_flag(tsk, TIF_SYSCALL_AUDIT);
clear_task_syscall_work(tsk, SYSCALL_AUDIT);
return 0;
}
@@ -964,7 +964,7 @@ int audit_alloc(struct task_struct *tsk)
context->filterkey = key;
audit_set_context(tsk, context);
set_tsk_thread_flag(tsk, TIF_SYSCALL_AUDIT);
set_task_syscall_work(tsk, SYSCALL_AUDIT);
return 0;
}