From: Sergiu Moga <sergiu@unikraft.io>
Date: Fri, 7 Feb 2025 09:36:29 +0000 (+0200)
Subject: lib/posix-futex: Use kernel internal `uk_sys_gettid`
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=0a2abc86c1be8f40700fbacf504c437b323b3ca0;p=unikraft%2Funikraft.git

lib/posix-futex: Use kernel internal `uk_sys_gettid`

Use the kernel internal variant of `gettid`, `uk_sys_gettid`. Unlike
`uk_syscall_r_gettid`, this variant does not involve any syscall shim
wrapper logic, but rather simply calls the system call's logic directly.

Signed-off-by: Sergiu Moga <sergiu@unikraft.io>
Reviewed-by: Michalis Pappas <michalis@unikraft.io>
Reviewed-by: Andrei Tatar <andrei@unikraft.io>
Approved-by: Andrei Tatar <andrei@unikraft.io>
GitHub-Closes: #1583
---

diff --git a/lib/posix-futex/futex.c b/lib/posix-futex/futex.c
index f64b679e1..56b92465a 100644
--- a/lib/posix-futex/futex.c
+++ b/lib/posix-futex/futex.c
@@ -373,7 +373,7 @@ UK_POSIX_CLONE_HANDLER(CLONE_CHILD_CLEARTID, true, pfutex_child_cleartid, 0x0);
  */
 UK_LLSYSCALL_R_DEFINE(pid_t, set_tid_address, pid_t *, tid_ref)
 {
-	pid_t self_tid = uk_syscall_r_gettid();
+	pid_t self_tid = uk_sys_gettid();
 
 	if (self_tid >= 0) {
 		/* Store new reference */