050eef364a
The tlb flushing code uses the mm_users field of the mm_struct to decide if each page table entry needs to be flushed individually with IPTE or if a global flush for the mm_struct is sufficient after all page table updates have been done. The comment for mm_users says "How many users with user space?" but the /proc code increases mm_users after it found the process structure by pid without creating a new user process. Which makes mm_users useless for the decision between the two tlb flusing methods. The current code can be confused to not flush tlb entries by a concurrent access to /proc files if e.g. a fork is in progres. The solution for this problem is to make the tlb flushing logic independent from the mm_users field. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> |
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| .. | ||
| Kbuild | ||
| airq.h | ||
| appldata.h | ||
| asm-offsets.h | ||
| atomic.h | ||
| auxvec.h | ||
| bitops.h | ||
| bitsperlong.h | ||
| bug.h | ||
| bugs.h | ||
| byteorder.h | ||
| cache.h | ||
| cacheflush.h | ||
| ccwdev.h | ||
| ccwgroup.h | ||
| checksum.h | ||
| chpid.h | ||
| chsc.h | ||
| cio.h | ||
| cmb.h | ||
| compat.h | ||
| cpcmd.h | ||
| cpu.h | ||
| cputime.h | ||
| crw.h | ||
| current.h | ||
| dasd.h | ||
| debug.h | ||
| delay.h | ||
| device.h | ||
| diag.h | ||
| div64.h | ||
| dma.h | ||
| ebcdic.h | ||
| elf.h | ||
| emergency-restart.h | ||
| errno.h | ||
| etr.h | ||
| extmem.h | ||
| fb.h | ||
| fcntl.h | ||
| fcx.h | ||
| ftrace.h | ||
| futex.h | ||
| hardirq.h | ||
| hugetlb.h | ||
| idals.h | ||
| io.h | ||
| ioctl.h | ||
| ioctls.h | ||
| ipcbuf.h | ||
| ipl.h | ||
| irq.h | ||
| irq_regs.h | ||
| irqflags.h | ||
| isc.h | ||
| itcw.h | ||
| kdebug.h | ||
| kexec.h | ||
| kmap_types.h | ||
| kprobes.h | ||
| kvm.h | ||
| kvm_host.h | ||
| kvm_para.h | ||
| kvm_virtio.h | ||
| linkage.h | ||
| local.h | ||
| local64.h | ||
| lowcore.h | ||
| mathemu.h | ||
| mman.h | ||
| mmu.h | ||
| mmu_context.h | ||
| module.h | ||
| monwriter.h | ||
| msgbuf.h | ||
| mutex.h | ||
| nmi.h | ||
| page.h | ||
| param.h | ||
| pci.h | ||
| percpu.h | ||
| perf_event.h | ||
| pgalloc.h | ||
| pgtable.h | ||
| poll.h | ||
| posix_types.h | ||
| processor.h | ||
| ptrace.h | ||
| qdio.h | ||
| qeth.h | ||
| reset.h | ||
| resource.h | ||
| rwsem.h | ||
| s390_ext.h | ||
| scatterlist.h | ||
| schid.h | ||
| sclp.h | ||
| scsw.h | ||
| seccomp.h | ||
| sections.h | ||
| segment.h | ||
| sembuf.h | ||
| setup.h | ||
| sfp-machine.h | ||
| sfp-util.h | ||
| shmbuf.h | ||
| shmparam.h | ||
| sigcontext.h | ||
| siginfo.h | ||
| signal.h | ||
| sigp.h | ||
| smp.h | ||
| socket.h | ||
| sockios.h | ||
| sparsemem.h | ||
| spinlock.h | ||
| spinlock_types.h | ||
| stat.h | ||
| statfs.h | ||
| string.h | ||
| suspend.h | ||
| swab.h | ||
| syscall.h | ||
| sysinfo.h | ||
| system.h | ||
| tape390.h | ||
| termbits.h | ||
| termios.h | ||
| thread_info.h | ||
| timer.h | ||
| timex.h | ||
| tlb.h | ||
| tlbflush.h | ||
| topology.h | ||
| types.h | ||
| uaccess.h | ||
| ucontext.h | ||
| unaligned.h | ||
| unistd.h | ||
| user.h | ||
| vdso.h | ||
| vtoc.h | ||
| xor.h | ||
| zcrypt.h | ||