a2a64769d0
current->blocked will be set to the value of current->thread_info->flags if the cmpxchg to update thread_info->flags fails. For performance reasons the store into current->blocked was placed in the cmpxchg loop. However, the cmpxchg overwrites the register holding the value to be stored. In the rare case of a retry the value of thread_info->flags will be written into current->blocked. The fix is to use another register so that the register containing the current->blocked value is not overwritten. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com> |
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|---|---|---|
| .. | ||
| Makefile | ||
| acpi-ext.c | ||
| acpi.c | ||
| asm-offsets.c | ||
| brl_emu.c | ||
| cyclone.c | ||
| domain.c | ||
| efi.c | ||
| efi_stub.S | ||
| entry.S | ||
| entry.h | ||
| fsys.S | ||
| gate-data.S | ||
| gate.S | ||
| gate.lds.S | ||
| head.S | ||
| ia64_ksyms.c | ||
| init_task.c | ||
| iosapic.c | ||
| irq.c | ||
| irq_ia64.c | ||
| irq_lsapic.c | ||
| ivt.S | ||
| machvec.c | ||
| mca.c | ||
| mca_asm.S | ||
| mca_drv.c | ||
| mca_drv.h | ||
| mca_drv_asm.S | ||
| minstate.h | ||
| module.c | ||
| pal.S | ||
| palinfo.c | ||
| patch.c | ||
| perfmon.c | ||
| perfmon_default_smpl.c | ||
| perfmon_generic.h | ||
| perfmon_itanium.h | ||
| perfmon_mckinley.h | ||
| process.c | ||
| ptrace.c | ||
| sal.c | ||
| salinfo.c | ||
| semaphore.c | ||
| setup.c | ||
| sigframe.h | ||
| signal.c | ||
| smp.c | ||
| smpboot.c | ||
| sys_ia64.c | ||
| time.c | ||
| topology.c | ||
| traps.c | ||
| unaligned.c | ||
| unwind.c | ||
| unwind_decoder.c | ||
| unwind_i.h | ||
| vmlinux.lds.S | ||