Update Linux to v5.10.109
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz
Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c
index 71d3fef..64a496a 100644
--- a/arch/x86/kernel/tls.c
+++ b/arch/x86/kernel/tls.c
@@ -256,36 +256,16 @@
}
int regset_tls_get(struct task_struct *target, const struct user_regset *regset,
- unsigned int pos, unsigned int count,
- void *kbuf, void __user *ubuf)
+ struct membuf to)
{
const struct desc_struct *tls;
+ struct user_desc v;
+ int pos;
- if (pos >= GDT_ENTRY_TLS_ENTRIES * sizeof(struct user_desc) ||
- (pos % sizeof(struct user_desc)) != 0 ||
- (count % sizeof(struct user_desc)) != 0)
- return -EINVAL;
-
- pos /= sizeof(struct user_desc);
- count /= sizeof(struct user_desc);
-
- tls = &target->thread.tls_array[pos];
-
- if (kbuf) {
- struct user_desc *info = kbuf;
- while (count-- > 0)
- fill_user_desc(info++, GDT_ENTRY_TLS_MIN + pos++,
- tls++);
- } else {
- struct user_desc __user *u_info = ubuf;
- while (count-- > 0) {
- struct user_desc info;
- fill_user_desc(&info, GDT_ENTRY_TLS_MIN + pos++, tls++);
- if (__copy_to_user(u_info++, &info, sizeof(info)))
- return -EFAULT;
- }
+ for (pos = 0, tls = target->thread.tls_array; to.left; pos++, tls++) {
+ fill_user_desc(&v, GDT_ENTRY_TLS_MIN + pos, tls);
+ membuf_write(&to, &v, sizeof(v));
}
-
return 0;
}