diff options
| author | Amanieu d'Antras <amanieu@gmail.com> | 2020-01-04 13:39:30 +0100 |
|---|---|---|
| committer | Christian Brauner <christian.brauner@ubuntu.com> | 2020-01-07 13:31:29 +0100 |
| commit | 457677c70c7672a4586b0b8abc396cc1ecdd376d (patch) | |
| tree | 85e77ee4b63a05b0cc65d430110952512253b7d4 /arch/x86/um/tls_32.c | |
| parent | dd499f7a7e34270208350a849ef103c0b3ae477f (diff) | |
um: Implement copy_thread_tls
This is required for clone3 which passes the TLS value through a
struct rather than a register.
Signed-off-by: Amanieu d'Antras <amanieu@gmail.com>
Cc: linux-um@lists.infradead.org
Cc: <stable@vger.kernel.org> # 5.3.x
Link: https://lore.kernel.org/r/20200104123928.1048822-1-amanieu@gmail.com
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Diffstat (limited to 'arch/x86/um/tls_32.c')
| -rw-r--r-- | arch/x86/um/tls_32.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/x86/um/tls_32.c b/arch/x86/um/tls_32.c index 5bd949da7a4a..ac8eee093f9c 100644 --- a/arch/x86/um/tls_32.c +++ b/arch/x86/um/tls_32.c @@ -215,14 +215,12 @@ static int set_tls_entry(struct task_struct* task, struct user_desc *info, return 0; } -int arch_copy_tls(struct task_struct *new) +int arch_set_tls(struct task_struct *new, unsigned long tls) { struct user_desc info; int idx, ret = -EFAULT; - if (copy_from_user(&info, - (void __user *) UPT_SI(&new->thread.regs.regs), - sizeof(info))) + if (copy_from_user(&info, (void __user *) tls, sizeof(info))) goto out; ret = -EINVAL; |