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Andrew Morton 016eb4a0ed [PATCH] invalidate_complete_page() race fix 
If a CPU faults this page into pagetables after invalidate_mapping_pages()
checked page_mapped(), invalidate_complete_page() will still proceed to remove
the page from pagecache.  This leaves the page-faulting process with a
detached page.  If it was MAP_SHARED then file data loss will ensue.

Fix that up by checking the page's refcount after taking tree_lock.

Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
 		2006-09-08 10:22:50 -07:00
..
Kconfig
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Makefile [PATCH] zoned vm counters: create vmstat.c/.h from page_alloc.c/.h 2006-06-30 11:25:34 -07:00
bootmem.c [PATCH] mm/bootmem.c: EXPORT_UNUSED_SYMBOL 2006-07-10 13:24:17 -07:00
fadvise.c [PATCH] fadvise() make POSIX_FADV_NOREUSE a no-op 2006-08-06 08:57:47 -07:00
filemap.c [PATCH] MM: Remove rogue readahead printk 2006-07-29 20:59:55 -07:00
filemap.h
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filemap_xip.c
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fremap.c
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highmem.c [PATCH] zoned vm counters: conversion of nr_bounce to per zone counter 2006-06-30 11:25:36 -07:00
hugetlb.c
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internal.h
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madvise.c
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memory.c [PATCH] per-task-delay-accounting: sync block I/O and swapin delay collection 2006-07-14 21:53:56 -07:00
memory_hotplug.c [PATCH] memory hotadd fixes: enhance collision check 2006-08-06 08:57:49 -07:00
mempolicy.c [PATCH] fix NUMA interleaving for huge pages 2006-09-01 11:39:10 -07:00
mempool.c [PATCH] dm: work around mempool_alloc, bio_alloc_bioset deadlocks 2006-09-01 11:39:09 -07:00
migrate.c
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mincore.c
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mlock.c
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mmap.c [PATCH] IA64,sparc: local DoS with corrupted ELFs 2006-09-08 08:40:46 -07:00
mmzone.c [PATCH] mm/mmzone.c: EXPORT_UNUSED_SYMBOL 2006-07-10 13:24:17 -07:00
mprotect.c
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mremap.c [PATCH] lockdep: annotate mm 2006-07-03 15:27:07 -07:00
msync.c
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nommu.c [PATCH] nommu: export two symbols for drivers to use 2006-07-14 21:53:53 -07:00
oom_kill.c [PATCH] sched: cleanup, remove task_t, convert to struct task_struct 2006-07-03 15:27:11 -07:00
page-writeback.c [PATCH] zoned vm counters: remove useless struct wbs 2006-06-30 11:25:36 -07:00
page_alloc.c [PATCH] ZVC/zone_reclaim: Leave 1% of unmapped pagecache pages for file I/O 2006-07-03 15:26:59 -07:00
page_io.c [PATCH] Light weight event counters 2006-06-30 11:25:36 -07:00
pdflush.c
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prio_tree.c
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readahead.c
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rmap.c [PATCH] zoned vm counters: split NR_ANON_PAGES off from NR_FILE_MAPPED 2006-06-30 11:25:35 -07:00
shmem.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2006-06-30 15:39:30 -07:00
slab.c [PATCH] Fix kmem_cache_alloc() been documented twice 2006-07-31 13:28:43 -07:00
slob.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
sparse.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
swap.c [PATCH] fuse: fix error case in fuse_readpages 2006-08-14 12:54:29 -07:00
swap_state.c [PATCH] lockdep: locking init debugging improvement 2006-07-03 15:27:02 -07:00
swapfile.c [PATCH] swsusp: Fix swap_type_of 2006-08-27 11:01:28 -07:00
thrash.c
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tiny-shmem.c
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truncate.c [PATCH] invalidate_complete_page() race fix 2006-09-08 10:22:50 -07:00
util.c
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vmalloc.c [PATCH] mm: fix oom roll-back of __vmalloc_area_node 2006-07-14 21:53:51 -07:00
vmscan.c [PATCH] ZVC/zone_reclaim: Leave 1% of unmapped pagecache pages for file I/O 2006-07-03 15:26:59 -07:00
vmstat.c [PATCH] ZVC: Scale thresholds depending on the size of the system 2006-09-01 11:39:08 -07:00