fc2acab31b
zap_pte_range has been counting the pages it frees in tlb->freed, then tlb_finish_mmu has used that to update the mm's rss. That got stranger when I added anon_rss, yet updated it by a different route; and stranger when rss and anon_rss became mm_counters with special access macros. And it would no longer be viable if we're relying on page_table_lock to stabilize the mm_counter, but calling tlb_finish_mmu outside that lock. Remove the mmu_gather's freed field, let tlb_finish_mmu stick to its own business, just decrement the rss mm_counter in zap_pte_range (yes, there was some point to batching the update, and a subsequent patch restores that). And forget the anal paranoia of first reading the counter to avoid going negative - if rss does go negative, just fix that bug. Remove the mmu_gather's flushes and avoided_flushes from arm and arm26: no use was being made of them. But arm26 alone was actually using the freed, in the way some others use need_flush: give it a need_flush. arm26 seems to prefer spaces to tabs here: respect that. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> |
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| .. | ||
| a.out.h | ||
| assembler.h | ||
| atomic.h | ||
| auxvec.h | ||
| bitops.h | ||
| bug.h | ||
| bugs.h | ||
| byteorder.h | ||
| cache.h | ||
| cacheflush.h | ||
| checksum.h | ||
| constants.h | ||
| cputime.h | ||
| current.h | ||
| delay.h | ||
| div64.h | ||
| dma-mapping.h | ||
| dma.h | ||
| ecard.h | ||
| elf.h | ||
| emergency-restart.h | ||
| errno.h | ||
| fcntl.h | ||
| fiq.h | ||
| floppy.h | ||
| fpstate.h | ||
| futex.h | ||
| hardirq.h | ||
| hardware.h | ||
| ide.h | ||
| io.h | ||
| ioc.h | ||
| ioctl.h | ||
| ioctls.h | ||
| ipc.h | ||
| ipcbuf.h | ||
| irq.h | ||
| irqchip.h | ||
| kmap_types.h | ||
| leds.h | ||
| limits.h | ||
| linkage.h | ||
| local.h | ||
| locks.h | ||
| mach-types.h | ||
| map.h | ||
| mc146818rtc.h | ||
| memory.h | ||
| mman.h | ||
| mmu_context.h | ||
| mmu.h | ||
| module.h | ||
| msgbuf.h | ||
| namei.h | ||
| oldlatches.h | ||
| page.h | ||
| param.h | ||
| parport.h | ||
| pci.h | ||
| percpu.h | ||
| pgalloc.h | ||
| pgtable.h | ||
| poll.h | ||
| posix_types.h | ||
| proc-fns.h | ||
| processor.h | ||
| procinfo.h | ||
| ptrace.h | ||
| resource.h | ||
| scatterlist.h | ||
| sections.h | ||
| segment.h | ||
| semaphore-helper.h | ||
| semaphore.h | ||
| sembuf.h | ||
| serial.h | ||
| setup.h | ||
| shmbuf.h | ||
| shmparam.h | ||
| sigcontext.h | ||
| siginfo.h | ||
| signal.h | ||
| sizes.h | ||
| smp.h | ||
| socket.h | ||
| sockios.h | ||
| spinlock.h | ||
| stat.h | ||
| statfs.h | ||
| string.h | ||
| suspend.h | ||
| sysirq.h | ||
| system.h | ||
| termbits.h | ||
| termios.h | ||
| thread_info.h | ||
| timex.h | ||
| tlb.h | ||
| tlbflush.h | ||
| topology.h | ||
| types.h | ||
| uaccess-asm.h | ||
| uaccess.h | ||
| ucontext.h | ||
| unaligned.h | ||
| uncompress.h | ||
| unistd.h | ||
| user.h | ||
| xor.h | ||