Hugh Dickins 0b0a0806b0 shmem: fix shared anonymous accounting ... Each time I exit Firefox, /proc/meminfo's Committed_AS goes down almost 400 kB: OVERCOMMIT_NEVER would be allowing overcommits it should prohibit. Commit fc8744adc8 "Stop playing silly games with the VM_ACCOUNT flag" changed shmem_file_setup() to set the shmem file's VM_ACCOUNT flag according to VM_NORESERVE not being set in the vma flags; but did so only _after_ the shmem_acct_size(flags, size) call which is expected to pre-account a shared anonymous object. It's all clearer if we switch shmem.c over to use VM_NORESERVE throughout in place of !VM_ACCOUNT. But I very nearly sent in a patch which mistakenly removed the accounting from tmpfs files: shmem_get_inode()'s memset was good for not setting VM_ACCOUNT, but now it needs to set VM_NORESERVE. Rather than setting that by default, then perhaps clearing it again in shmem_file_setup(), let's pass it as a flag to shmem_get_inode(): that allows us to remove the #ifdef CONFIG_SHMEM from shmem_file_setup(). Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2009-02-25 12:21:42 -08:00
..
allocpercpu.c	mm/allocpercpu.c: make 4 functions static	2008-07-26 12:00:12 -07:00
backing-dev.c	Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-01-06 17:10:04 -08:00
bootmem.c	bootmem: print request details before BUG_ON(them)	2009-01-06 15:59:10 -08:00
bounce.c	bounce: don't rely on a zeroed bio_vec list	2008-12-29 08:29:52 +01:00
dmapool.c	dmapool: enable debugging for CONFIG_SLUB_DEBUG_ON too	2008-04-28 08:58:20 -07:00
fadvise.c	[CVE-2009-0029] System call wrapper special cases	2009-01-14 14:15:18 +01:00
failslab.c	SLUB: failslab support	2008-12-29 11:27:46 +02:00
filemap.c	[CVE-2009-0029] System call wrapper special cases	2009-01-14 14:15:18 +01:00
filemap_xip.c	badpage: remove vma from page_remove_rmap	2009-01-06 15:59:07 -08:00
fremap.c	Do not account for the address space used by hugetlbfs using VM_ACCOUNT	2009-02-10 10:48:42 -08:00
highmem.c	x86, pat: avoid highmem cache attribute aliasing	2008-08-15 17:22:57 +02:00
hugetlb.c	Do not account for hugetlbfs quota at mmap() time if mapping [SHM|MAP]_NORESERVE	2009-02-11 12:38:09 -08:00
internal.h	mm: make get_user_pages() interruptible	2009-01-06 15:59:08 -08:00
Kconfig	Remove obsolete CONFIG_RESOURCES_64BIT	2009-01-06 15:59:14 -08:00
maccess.c	kgdb: fix optional arch functions and probe_kernel_*	2008-04-17 20:05:39 +02:00
madvise.c	[CVE-2009-0029] System call wrappers part 14	2009-01-14 14:15:24 +01:00
Makefile	shmem: unify regular and tiny shmem	2009-01-06 15:59:08 -08:00
memcontrol.c	memcg: NULL pointer dereference at rmdir on some NUMA systems	2009-01-29 18:04:44 -08:00
memory.c	do_wp_page: fix regression with execute in place	2009-02-05 12:56:48 -08:00
memory_hotplug.c	mm: remove GFP_HIGHUSER_PAGECACHE	2009-01-06 15:59:01 -08:00
mempolicy.c	[CVE-2009-0029] System call wrappers part 28	2009-01-14 14:15:30 +01:00
mempool.c
migrate.c	migration: migrate_vmas should check "vma"	2009-02-11 14:25:34 -08:00
mincore.c	[CVE-2009-0029] System call wrappers part 14	2009-01-14 14:15:24 +01:00
mlock.c	Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-02-17 14:27:39 -08:00
mm_init.c	mm: mminit_loglevel cannot be __meminitdata anymore	2008-08-20 15:40:30 -07:00
mmap.c	mm: rearrange exit_mmap() to unlock before arch_exit_mmap	2009-02-11 14:25:37 -08:00
mmu_notifier.c	mmu-notifiers: core	2008-07-28 16:30:21 -07:00
mmzone.c	mm: mark the correct zone as full when scanning zonelists	2008-09-13 14:41:52 -07:00
mprotect.c	Do not account for the address space used by hugetlbfs using VM_ACCOUNT	2009-02-10 10:48:42 -08:00
mremap.c	[CVE-2009-0029] System call wrappers part 13	2009-01-14 14:15:23 +01:00
msync.c	[CVE-2009-0029] System call wrappers part 13	2009-01-14 14:15:23 +01:00
nommu.c	uclinux: add process name to allocation error message	2009-01-27 16:42:03 +10:00
oom_kill.c	memcg: avoid deadlock caused by race between oom and cpuset_attach	2009-01-08 08:31:09 -08:00
page-writeback.c	mm: task dirty accounting fix	2009-02-18 15:37:54 -08:00
page_alloc.c	mm: fix memmap init for handling memory hole	2009-02-18 15:37:55 -08:00
page_cgroup.c	memcg: use __GFP_NOWARN in page cgroup allocation	2009-02-11 14:25:35 -08:00
page_io.c	block: fix bad definition of BIO_RW_SYNC	2009-02-18 10:32:00 +01:00
page_isolation.c	memory hotplug: fix page_zone() calculation in test_pages_isolated()	2008-11-06 15:41:19 -08:00
pagewalk.c	pagemap: pass mm into pagewalkers	2008-06-12 18:05:41 -07:00
pdflush.c	cpumask: convert mm/	2009-01-01 10:12:29 +10:30
prio_tree.c
quicklist.c	mm: size of quicklists shouldn't be proportional to the number of CPUs	2008-09-02 19:21:38 -07:00
readahead.c	vmscan: split LRU lists into anon & file sets	2008-10-20 08:50:25 -07:00
rmap.c	mm: fix mlocked page counter mismatch	2009-02-11 14:25:35 -08:00
shmem.c	shmem: fix shared anonymous accounting	2009-02-25 12:21:42 -08:00
shmem_acl.c	[PATCH] sanitize ->permission() prototype	2008-07-26 20:53:14 -04:00
slab.c	mm: Export symbol ksize()	2009-02-12 17:50:46 +02:00
slob.c	mm: Export symbol ksize()	2009-02-12 17:50:46 +02:00
slub.c	mm: Export symbol ksize()	2009-02-12 17:50:46 +02:00
sparse-vmemmap.c	vmemmap: warn about page_structs with remote distance	2008-11-06 15:41:19 -08:00
sparse.c	meminit section warnings	2008-11-30 10:03:35 -08:00
swap.c	memcg: add zone_reclaim_stat	2009-01-08 08:31:08 -08:00
swap_state.c	memcg: mem+swap controller core	2009-01-08 08:31:05 -08:00
swapfile.c	PM/hibernate: fix "swap breaks after hibernation failures"	2009-02-21 14:17:17 -08:00
thrash.c
truncate.c	mmap: handle mlocked pages during map, remap, unmap	2008-10-20 08:52:31 -07:00
util.c	slab: introduce kzfree()	2009-02-20 17:57:48 -08:00
vmalloc.c	vmalloc: call flush_cache_vunmap() from unmap_kernel_range()	2009-02-20 17:57:49 -08:00
vmscan.c	swsusp: clean up shrink_all_zones()	2009-02-21 14:17:17 -08:00
vmstat.c	cpumask: convert mm/	2009-01-01 10:12:29 +10:30