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Commit 0f0a691f authored by David S. Miller's avatar David S. Miller
Browse files

sparc64: Remvoe set_fs() from perf_callchain_user(). 



Ever since commit 88b0193d ("perf/callchain: Force USER_DS when
invoking perf_callchain_user()") the caller does this for us.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4b427452

arch/sparc/kernel/perf_event.c

+0 −5
Original line number Diff line number Diff line
@@ -1849,16 +1849,12 @@ perf_callchain_user(struct perf_callchain_entry_ctx *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();
@@ -1870,7 +1866,6 @@ perf_callchain_user(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs 


	pagefault_enable();



	set_fs(old_fs);

	set_thread_fault_code(saved_fault_code);

	current_thread_info()->fault_address = saved_fault_address;

}