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| author | Takashi Iwai <tiwai@suse.de> | 2016-01-06 20:53:28 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2016-01-06 20:53:28 +0100 |
| commit | 3f37b26f8d57756b591383a9d8ce1cd628bc773c (patch) | |
| tree | 0311f4c48cfa7ace3940f3db203b930a2c2eaaa5 /arch/sparc/kernel/perf_event.c | |
| parent | c7b60a89516beb20a352ec85c73a8fccd5becf26 (diff) | |
| parent | bc42f363da213b4bf7c15a2dc87b2b1a85cde867 (diff) | |
Merge tag 'asoc-fix-v4.4-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Last minute fixes for v4.4
A few final fixes for v4.4, the main one being the two patches to the
new Sky Lake drivers which fix a previous incorrect fix that went in
during an earlier -rc.
Diffstat (limited to 'arch/sparc/kernel/perf_event.c')
| -rw-r--r-- | arch/sparc/kernel/perf_event.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c index 3091267c5cc3..6596f66ce112 100644 --- a/arch/sparc/kernel/perf_event.c +++ b/arch/sparc/kernel/perf_event.c @@ -1828,11 +1828,18 @@ static void perf_callchain_user_32(struct perf_callchain_entry *entry, void perf_callchain_user(struct perf_callchain_entry *entry, struct pt_regs *regs) { + u64 saved_fault_address = current_thread_info()->fault_address; + u8 saved_fault_code = get_thread_fault_code(); + mm_segment_t old_fs; + perf_callchain_store(entry, regs->tpc); if (!current->mm) return; + old_fs = get_fs(); + set_fs(USER_DS); + flushw_user(); pagefault_disable(); @@ -1843,4 +1850,8 @@ perf_callchain_user(struct perf_callchain_entry *entry, struct pt_regs *regs) perf_callchain_user_64(entry, regs); pagefault_enable(); + + set_fs(old_fs); + set_thread_fault_code(saved_fault_code); + current_thread_info()->fault_address = saved_fault_address; } |