Revision 09a9f1d27892255cfb9c91203f19476765e2d8d1 authored by Michel Lespinasse on 28 March 2013, 23:26:23 UTC, committed by Linus Torvalds on 29 March 2013, 00:45:51 UTC
This reverts commit 186930500985 ("mm: introduce VM_POPULATE flag to
better deal with racy userspace programs").
VM_POPULATE only has any effect when userspace plays racy games with
vmas by trying to unmap and remap memory regions that mmap or mlock are
operating on.
Also, the only effect of VM_POPULATE when userspace plays such games is
that it avoids populating new memory regions that get remapped into the
address range that was being operated on by the original mmap or mlock
calls.
Let's remove VM_POPULATE as there isn't any strong argument to mandate a
new vm_flag.
Signed-off-by: Michel Lespinasse <walken@google.com>
Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 0776ce0
| File | Mode | Size |
|---|---|---|
| lzo | ||
| mpi | ||
| raid6 | ||
| reed_solomon | ||
| xz | ||
| zlib_deflate | ||
| zlib_inflate | ||
| .gitignore | -rw-r--r-- | 70 bytes |
| Kconfig | -rw-r--r-- | 9.0 KB |
| Kconfig.debug | -rw-r--r-- | 49.8 KB |
| Kconfig.kgdb | -rw-r--r-- | 3.1 KB |
| Kconfig.kmemcheck | -rw-r--r-- | 2.9 KB |
| Makefile | -rw-r--r-- | 5.3 KB |
| argv_split.c | -rw-r--r-- | 1.8 KB |
| asn1_decoder.c | -rw-r--r-- | 12.5 KB |
| atomic64.c | -rw-r--r-- | 4.2 KB |
| atomic64_test.c | -rw-r--r-- | 3.4 KB |
| audit.c | -rw-r--r-- | 1.2 KB |
| average.c | -rw-r--r-- | 1.9 KB |
| bcd.c | -rw-r--r-- | 261 bytes |
| bch.c | -rw-r--r-- | 35.6 KB |
| bitmap.c | -rw-r--r-- | 34.7 KB |
| bitrev.c | -rw-r--r-- | 2.1 KB |
| bsearch.c | -rw-r--r-- | 1.6 KB |
| btree.c | -rw-r--r-- | 19.2 KB |
| bug.c | -rw-r--r-- | 4.8 KB |
| build_OID_registry | -rwxr-xr-x | 4.8 KB |
| bust_spinlocks.c | -rw-r--r-- | 660 bytes |
| check_signature.c | -rw-r--r-- | 599 bytes |
| checksum.c | -rw-r--r-- | 4.9 KB |
| clz_tab.c | -rw-r--r-- | 855 bytes |
| cmdline.c | -rw-r--r-- | 3.6 KB |
| cordic.c | -rw-r--r-- | 2.5 KB |
| cpu-notifier-error-inject.c | -rw-r--r-- | 1.2 KB |
| cpu_rmap.c | -rw-r--r-- | 7.9 KB |
| cpumask.c | -rw-r--r-- | 4.4 KB |
| crc-ccitt.c | -rw-r--r-- | 3.0 KB |
| crc-itu-t.c | -rw-r--r-- | 2.8 KB |
| crc-t10dif.c | -rw-r--r-- | 2.9 KB |
| crc16.c | -rw-r--r-- | 2.8 KB |
| crc32.c | -rw-r--r-- | 41.9 KB |
| crc32defs.h | -rw-r--r-- | 2.0 KB |
| crc7.c | -rw-r--r-- | 2.3 KB |
| crc8.c | -rw-r--r-- | 2.4 KB |
| ctype.c | -rw-r--r-- | 1.4 KB |
| debug_locks.c | -rw-r--r-- | 1.1 KB |
| debugobjects.c | -rw-r--r-- | 26.1 KB |
| dec_and_lock.c | -rw-r--r-- | 784 bytes |
| decompress.c | -rw-r--r-- | 1.4 KB |
| decompress_bunzip2.c | -rw-r--r-- | 23.4 KB |
| decompress_inflate.c | -rw-r--r-- | 3.7 KB |
| decompress_unlzma.c | -rw-r--r-- | 15.8 KB |
| decompress_unlzo.c | -rw-r--r-- | 6.8 KB |
| decompress_unxz.c | -rw-r--r-- | 10.6 KB |
| devres.c | -rw-r--r-- | 10.2 KB |
| digsig.c | -rw-r--r-- | 5.5 KB |
| div64.c | -rw-r--r-- | 3.1 KB |
| dma-debug.c | -rw-r--r-- | 34.9 KB |
| dump_stack.c | -rw-r--r-- | 290 bytes |
| dynamic_debug.c | -rw-r--r-- | 26.0 KB |
| dynamic_queue_limits.c | -rw-r--r-- | 4.3 KB |
| earlycpio.c | -rw-r--r-- | 3.8 KB |
| extable.c | -rw-r--r-- | 2.4 KB |
| fault-inject.c | -rw-r--r-- | 6.0 KB |
| fdt.c | -rw-r--r-- | 69 bytes |
| fdt_ro.c | -rw-r--r-- | 72 bytes |
| fdt_rw.c | -rw-r--r-- | 72 bytes |
| fdt_strerror.c | -rw-r--r-- | 78 bytes |
| fdt_sw.c | -rw-r--r-- | 72 bytes |
| fdt_wip.c | -rw-r--r-- | 73 bytes |
| find_last_bit.c | -rw-r--r-- | 1.1 KB |
| find_next_bit.c | -rw-r--r-- | 6.4 KB |
| flex_array.c | -rw-r--r-- | 10.9 KB |
| flex_proportions.c | -rw-r--r-- | 6.8 KB |
| gcd.c | -rw-r--r-- | 313 bytes |
| gen_crc32table.c | -rw-r--r-- | 3.2 KB |
| genalloc.c | -rw-r--r-- | 13.3 KB |
| halfmd4.c | -rw-r--r-- | 2.0 KB |
| hexdump.c | -rw-r--r-- | 7.1 KB |
| hweight.c | -rw-r--r-- | 1.9 KB |
| idr.c | -rw-r--r-- | 27.9 KB |
| inflate.c | -rw-r--r-- | 38.6 KB |
| int_sqrt.c | -rw-r--r-- | 533 bytes |
| interval_tree.c | -rw-r--r-- | 297 bytes |
| interval_tree_test_main.c | -rw-r--r-- | 2.3 KB |
| iomap.c | -rw-r--r-- | 6.5 KB |
| iomap_copy.c | -rw-r--r-- | 2.1 KB |
| iommu-helper.c | -rw-r--r-- | 1.0 KB |
| ioremap.c | -rw-r--r-- | 2.1 KB |
| irq_regs.c | -rw-r--r-- | 604 bytes |
| is_single_threaded.c | -rw-r--r-- | 1.3 KB |
| jedec_ddr_data.c | -rw-r--r-- | 3.0 KB |
| kasprintf.c | -rw-r--r-- | 717 bytes |
| kfifo.c | -rw-r--r-- | 12.7 KB |
| klist.c | -rw-r--r-- | 9.3 KB |
| kobject.c | -rw-r--r-- | 23.2 KB |
| kobject_uevent.c | -rw-r--r-- | 10.4 KB |
| kstrtox.c | -rw-r--r-- | 9.4 KB |
| kstrtox.h | -rw-r--r-- | 254 bytes |
| lcm.c | -rw-r--r-- | 288 bytes |
| libcrc32c.c | -rw-r--r-- | 2.1 KB |
| list_debug.c | -rw-r--r-- | 2.6 KB |
| list_sort.c | -rw-r--r-- | 7.0 KB |
| llist.c | -rw-r--r-- | 2.7 KB |
| locking-selftest-hardirq.h | -rw-r--r-- | 207 bytes |
| locking-selftest-mutex.h | -rw-r--r-- | 120 bytes |
| locking-selftest-rlock-hardirq.h | -rw-r--r-- | 74 bytes |
| locking-selftest-rlock-softirq.h | -rw-r--r-- | 74 bytes |
| locking-selftest-rlock.h | -rw-r--r-- | 158 bytes |
| locking-selftest-rsem.h | -rw-r--r-- | 163 bytes |
| locking-selftest-softirq.h | -rw-r--r-- | 207 bytes |
| locking-selftest-spin-hardirq.h | -rw-r--r-- | 73 bytes |
| locking-selftest-spin-softirq.h | -rw-r--r-- | 73 bytes |
| locking-selftest-spin.h | -rw-r--r-- | 118 bytes |
| locking-selftest-wlock-hardirq.h | -rw-r--r-- | 74 bytes |
| locking-selftest-wlock-softirq.h | -rw-r--r-- | 74 bytes |
| locking-selftest-wlock.h | -rw-r--r-- | 158 bytes |
| locking-selftest-wsem.h | -rw-r--r-- | 163 bytes |
| locking-selftest.c | -rw-r--r-- | 28.7 KB |
| lru_cache.c | -rw-r--r-- | 18.0 KB |
| md5.c | -rw-r--r-- | 3.7 KB |
| memory-notifier-error-inject.c | -rw-r--r-- | 1.1 KB |
| memweight.c | -rw-r--r-- | 999 bytes |
| nlattr.c | -rw-r--r-- | 12.4 KB |
| notifier-error-inject.c | -rw-r--r-- | 2.7 KB |
| notifier-error-inject.h | -rw-r--r-- | 614 bytes |
| of-reconfig-notifier-error-inject.c | -rw-r--r-- | 1.3 KB |
| oid_registry.c | -rw-r--r-- | 3.7 KB |
| parser.c | -rw-r--r-- | 6.2 KB |
| pci_iomap.c | -rw-r--r-- | 1.4 KB |
| percpu-rwsem.c | -rw-r--r-- | 5.0 KB |
| percpu_counter.c | -rw-r--r-- | 5.1 KB |
| plist.c | -rw-r--r-- | 4.7 KB |
| pm-notifier-error-inject.c | -rw-r--r-- | 1.1 KB |
| prio_heap.c | -rw-r--r-- | 1.4 KB |
| proportions.c | -rw-r--r-- | 9.3 KB |
| radix-tree.c | -rw-r--r-- | 38.7 KB |
| random32.c | -rw-r--r-- | 5.2 KB |
| ratelimit.c | -rw-r--r-- | 1.5 KB |
| rational.c | -rw-r--r-- | 1.5 KB |
| rbtree.c | -rw-r--r-- | 14.0 KB |
| rbtree_test.c | -rw-r--r-- | 5.0 KB |
| reciprocal_div.c | -rw-r--r-- | 218 bytes |
| rwsem-spinlock.c | -rw-r--r-- | 6.7 KB |
| rwsem.c | -rw-r--r-- | 8.5 KB |
| scatterlist.c | -rw-r--r-- | 15.6 KB |
| sha1.c | -rw-r--r-- | 6.1 KB |
| show_mem.c | -rw-r--r-- | 1.3 KB |
| smp_processor_id.c | -rw-r--r-- | 1.1 KB |
| sort.c | -rw-r--r-- | 2.5 KB |
| spinlock_debug.c | -rw-r--r-- | 7.1 KB |
| stmp_device.c | -rw-r--r-- | 2.1 KB |
| string.c | -rw-r--r-- | 16.2 KB |
| string_helpers.c | -rw-r--r-- | 1.7 KB |
| strncpy_from_user.c | -rw-r--r-- | 2.9 KB |
| strnlen_user.c | -rw-r--r-- | 3.6 KB |
| swiotlb.c | -rw-r--r-- | 26.5 KB |
| syscall.c | -rw-r--r-- | 2.4 KB |
| test-kstrtox.c | -rw-r--r-- | 17.4 KB |
| textsearch.c | -rw-r--r-- | 9.6 KB |
| timerqueue.c | -rw-r--r-- | 3.1 KB |
| ts_bm.c | -rw-r--r-- | 5.3 KB |
| ts_fsm.c | -rw-r--r-- | 10.6 KB |
| ts_kmp.c | -rw-r--r-- | 4.3 KB |
| uuid.c | -rw-r--r-- | 1.4 KB |
| vsprintf.c | -rw-r--r-- | 53.0 KB |
Computing file changes ...
