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Andrew Morton 3e67c0987d [PATCH] truncate: clear page dirtiness before running try_to_free_buffers() 
truncate presently invalidates the dirty page's buffer_heads then shoots down
the page.  But try_to_free_buffers() will now bale out because the page is
dirty.

Net effect: the LRU gets filled with dirty pages which have invalidated
buffer_heads attached.  They have no ->mapping and hence cannot be cleaned.
The machine leaks memory at an enormous rate.

Fix this by cleaning the page before running try_to_free_buffers(), so
try_to_free_buffers() can do its work.

Also, remember to do dirty-page-acoounting in cancel_dirty_page() so the
machine won't wedge up trying to write non-existent dirty pages.

Probably still wrong, but now less so.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-21 11:17:26 -08:00
..
allocpercpu.c [PATCH] Allow NULL pointers in percpu_free 2006-12-07 08:39:22 -08:00
backing-dev.c [PATCH] separate bdi congestion functions from queue congestion functions 2006-10-20 10:26:35 -07:00
bootmem.c [PATCH] remove EXPORT_UNUSED_SYMBOL'ed symbols 2006-12-07 08:39:44 -08:00
bounce.c [PATCH] BLOCK: Separate the bounce buffering code from the highmem code [try #6] 2006-09-30 20:32:11 +02:00
fadvise.c [PATCH] mm: change uses of f_{dentry,vfsmnt} to use f_path 2006-12-08 08:28:43 -08:00
filemap.c [PATCH] dio: only call aio_complete() after returning -EIOCBQUEUED 2006-12-10 09:57:21 -08:00
filemap.h Remove all inclusions of <linux/config.h> 2006-10-04 03:38:54 -04:00
filemap_xip.c [PATCH] mm: change uses of f_{dentry,vfsmnt} to use f_path 2006-12-08 08:28:43 -08:00
fremap.c [PATCH] kill install_file_pte's pte_val 2006-12-07 08:39:23 -08:00
highmem.c [PATCH] BLOCK: Separate the bounce buffering code from the highmem code [try #6] 2006-09-30 20:32:11 +02:00
hugetlb.c [PATCH] Pass vma argument to copy_user_highpage(). 2006-12-13 09:27:08 -08:00
internal.h [PATCH] mm: VM_BUG_ON 2006-09-26 08:48:44 -07:00
Kconfig Fix "can not" in Documentation and Kconfig 2006-10-03 22:53:09 +02:00
madvise.c [PATCH] Fix MADV_REMOVE protection checking 2006-04-17 18:22:18 -07:00
Makefile [PATCH] separate bdi congestion functions from queue congestion functions 2006-10-20 10:26:35 -07:00
memory.c [PATCH] Pass vma argument to copy_user_highpage(). 2006-12-13 09:27:08 -08:00
memory_hotplug.c [PATCH] Get rid of zone_table[] 2006-12-07 08:39:20 -08:00
mempolicy.c [PATCH] struct path: convert mm 2006-12-08 08:28:47 -08:00
mempool.c [PATCH] dm: work around mempool_alloc, bio_alloc_bioset deadlocks 2006-09-01 11:39:09 -07:00
migrate.c [PATCH] radix-tree: RCU lockless readside 2006-12-07 08:39:25 -08:00
mincore.c [PATCH] sys_mincore: s/max/min/ 2006-12-17 10:21:53 -08:00
mlock.c [PATCH] mlock cleanup 2006-12-07 08:39:22 -08:00
mmap.c [PATCH] mm: change uses of f_{dentry,vfsmnt} to use f_path 2006-12-08 08:28:43 -08:00
mmzone.c [PATCH] remove EXPORT_UNUSED_SYMBOL'ed symbols 2006-12-07 08:39:44 -08:00
mprotect.c [PATCH] paravirt: lazy mmu mode hooks.patch 2006-10-01 00:39:33 -07:00
mremap.c [PATCH] paravirt: lazy mmu mode hooks.patch 2006-10-01 00:39:33 -07:00
msync.c [PATCH] mm: msync() cleanup 2006-09-26 08:48:45 -07:00
nommu.c [PATCH] struct path: convert mm 2006-12-08 08:28:47 -08:00
oom_kill.c [PATCH] cpuset: rework cpuset_zone_allowed api 2006-12-13 09:05:49 -08:00
page-writeback.c VM: Remove "clear_page_dirty()" and "test_clear_page_dirty()" functions 2006-12-21 09:19:57 -08:00
page_alloc.c [PATCH] cpuset: rework cpuset_zone_allowed api 2006-12-13 09:05:49 -08:00
page_io.c [PATCH] swsusp: use block device offsets to identify swap locations 2006-12-07 08:39:27 -08:00
pdflush.c [PATCH] Add include/linux/freezer.h and move definitions from sched.h 2006-12-07 08:39:27 -08:00
prio_tree.c
readahead.c [PATCH] io-accounting-read-accounting nfs fix 2006-12-10 09:55:41 -08:00
rmap.c [PATCH] mm: more commenting on lock ordering 2006-10-20 10:26:44 -07:00
shmem.c [PATCH] mm: change uses of f_{dentry,vfsmnt} to use f_path 2006-12-08 08:28:43 -08:00
shmem_acl.c [PATCH] Fix typos in mm/shmem_acl.c 2006-10-11 11:14:23 -07:00
slab.c [PATCH] SLAB: use a multiply instead of a divide in obj_to_index() 2006-12-13 09:05:49 -08:00
slob.c [PATCH] More slab.h cleanups 2006-12-13 09:05:49 -08:00
sparse.c [PATCH] numa node ids are int, page_to_nid and zone_to_nid should return int 2006-12-07 08:39:23 -08:00
swap.c [PATCH] hotplug CPU: clean up hotcpu_notifier() use 2006-12-07 08:39:39 -08:00
swap_state.c [PATCH] lockdep: locking init debugging improvement 2006-07-03 15:27:02 -07:00
swapfile.c [PATCH] mm: change uses of f_{dentry,vfsmnt} to use f_path 2006-12-08 08:28:43 -08:00
thrash.c [PATCH] make mm/thrash.c:global_faults static 2006-12-07 08:39:22 -08:00
tiny-shmem.c [PATCH] struct path: convert mm 2006-12-08 08:28:47 -08:00
truncate.c [PATCH] truncate: clear page dirtiness before running try_to_free_buffers() 2006-12-21 11:17:26 -08:00
util.c [PATCH] slab: clean up leak tracking ifdefs a little bit 2006-10-04 07:55:13 -07:00
vmalloc.c [PATCH] Fix strange size check in __get_vm_area_node() 2006-11-16 11:43:38 -08:00
vmscan.c [PATCH] cpuset: rework cpuset_zone_allowed api 2006-12-13 09:05:49 -08:00
vmstat.c [PATCH] struct seq_operations and struct file_operations constification 2006-12-07 08:39:46 -08:00