linux/mm
Pekka Enberg 63bfd7384b perf_events: Fix perf_counter_mmap() hook in mprotect()
As pointed out by Linus, commit dab5855 ("perf_counter: Add mmap event hooks to
mprotect()") is fundamentally wrong as mprotect_fixup() can free 'vma' due to
merging. Fix the problem by moving perf_event_mmap() hook to
mprotect_fixup().

Note: there's another successful return path from mprotect_fixup() if old
flags equal to new flags. We don't, however, need to call
perf_event_mmap() there because 'perf' already knows the VMA is
executable.

Reported-by: Dave Jones <davej@redhat.com>
Analyzed-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Ingo Molnar <mingo@elte.hu>
Reviewed-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-09 10:19:38 -08:00
..
Kconfig
Kconfig.debug
Makefile
backing-dev.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2010-10-26 17:58:44 -07:00
bootmem.c
bounce.c
compaction.c
debug-pagealloc.c
dmapool.c mm: add a might_sleep_if() to dma_pool_alloc() 2010-10-26 16:52:08 -07:00
fadvise.c
failslab.c
filemap.c Release page reference during page fault retry 2010-11-02 17:02:31 -04:00
filemap_xip.c
fremap.c
highmem.c mm,x86: fix kmap_atomic_push vs ioremap_32.c 2010-10-27 18:03:05 -07:00
hugetlb.c mm/hugetlb.c: add missing spin_lock() to hugetlb_cow() 2010-10-26 16:52:11 -07:00
hwpoison-inject.c
init-mm.c
internal.h mm: fix is_mem_section_removable() page_order BUG_ON check 2010-10-26 16:52:11 -07:00
kmemcheck.c
kmemleak-test.c
kmemleak.c
ksm.c
maccess.c MN10300: Save frame pointer in thread_info struct rather than global var 2010-10-27 17:29:01 +01:00
madvise.c
memblock.c
memcontrol.c memcg: generic filestat update interface 2010-10-27 18:03:10 -07:00
memory-failure.c mm: compaction: fix COMPACTPAGEFAILED counting 2010-10-26 16:52:06 -07:00
memory.c use clear_page()/copy_page() in favor of memset()/memcpy() on whole pages 2010-10-26 16:52:13 -07:00
memory_hotplug.c mm: do_migrate_range: reduce list_empty() check 2010-10-26 16:52:11 -07:00
mempolicy.c numa: fix slab_node(MPOL_BIND) 2010-10-28 10:04:30 -07:00
mempool.c
migrate.c mm: fix error reporting in move_pages() syscall 2010-10-26 16:52:11 -07:00
mincore.c
mlock.c
mm_init.c
mmap.c audit mmap 2010-10-30 08:45:43 -04:00
mmu_context.c
mmu_notifier.c
mmzone.c
mprotect.c perf_events: Fix perf_counter_mmap() hook in mprotect() 2010-11-09 10:19:38 -08:00
mremap.c mm: remove pte_*map_nested() 2010-10-26 16:52:08 -07:00
msync.c
nommu.c audit mmap 2010-10-30 08:45:43 -04:00
oom_kill.c oom: kill all threads sharing oom killed task's mm 2010-10-26 16:52:05 -07:00
page-writeback.c writeback: remove the internal 5% low bound on dirty_ratio 2010-10-26 16:52:08 -07:00
page_alloc.c mm: add casts to/from gfp_t in gfp_to_alloc_flags() 2010-10-26 16:52:09 -07:00
page_cgroup.c
page_io.c
page_isolation.c mm: page_isolation: codeclean fix comment and rm unneeded val init 2010-10-26 16:52:11 -07:00
pagewalk.c
percpu-km.c
percpu-vm.c
percpu.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-10-24 13:41:39 -07:00
prio_tree.c
quicklist.c
readahead.c
rmap.c rmap: make anon_vma_chain_free() static 2010-10-26 16:52:10 -07:00
shmem.c convert get_sb_nodev() users 2010-10-29 04:16:31 -04:00
slab.c replace nested max/min macros with {max,min}3 macro 2010-10-26 16:52:12 -07:00
slob.c
slub.c
sparse-vmemmap.c
sparse.c
swap.c fuse: use release_pages() 2010-10-27 18:03:17 -07:00
swap_state.c
swapfile.c /proc/swaps: support polling 2010-10-26 16:52:11 -07:00
thrash.c
truncate.c
util.c
vmalloc.c mm: add vzalloc() and vzalloc_node() helpers 2010-10-26 16:52:10 -07:00
vmscan.c vmscan,tmpfs: treat used once pages on tmpfs as used once 2010-10-26 16:52:08 -07:00
vmstat.c vmstat: fix offset calculation on void* 2010-11-03 14:39:58 -04:00