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| author | Bob Peterson <rpeterso@redhat.com> | 2018-01-19 00:17:13 +0300 |
|---|---|---|
| committer | Bob Peterson <rpeterso@redhat.com> | 2018-01-19 00:17:13 +0300 |
| commit | 786ebd9f68cdf512f389e5f2d0015f1beb0777d8 (patch) | |
| tree | b4bae82884c2232f891aec11e58b38eb4fec5e5d /arch/powerpc/kernel/process.c | |
| parent | 1f23bc7869fffec40b8bd9333a74a18d1de54d98 (diff) | |
| parent | 4e56a6411fbce6f859566e17298114c2434391a4 (diff) | |
| download | linux-786ebd9f68cdf512f389e5f2d0015f1beb0777d8.tar.xz | |
Merge branch 'punch-hole' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2.git
Diffstat (limited to 'arch/powerpc/kernel/process.c')
| -rw-r--r-- | arch/powerpc/kernel/process.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index bfdd783e3916..5acb5a176dbe 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -1569,16 +1569,22 @@ void arch_release_task_struct(struct task_struct *t) */ int set_thread_tidr(struct task_struct *t) { + int rc; + if (!cpu_has_feature(CPU_FTR_ARCH_300)) return -EINVAL; if (t != current) return -EINVAL; - t->thread.tidr = assign_thread_tidr(); - if (t->thread.tidr < 0) - return t->thread.tidr; + if (t->thread.tidr) + return 0; + + rc = assign_thread_tidr(); + if (rc < 0) + return rc; + t->thread.tidr = rc; mtspr(SPRN_TIDR, t->thread.tidr); return 0; |