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| author | Nick Piggin | 2006-03-22 09:08:34 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2006-03-22 16:54:01 +0100 |
| commit | 84097518d1ecd2330f9488e4c2d09953a3340e74 (patch) | |
| tree | 50981fe0584c456a1a86e6d7f611eec223b5f536 /fs/ramfs | |
| parent | [PATCH] mm: make __put_page internal (diff) | |
| download | kernel-qcow2-linux-84097518d1ecd2330f9488e4c2d09953a3340e74.tar.gz kernel-qcow2-linux-84097518d1ecd2330f9488e4c2d09953a3340e74.tar.xz kernel-qcow2-linux-84097518d1ecd2330f9488e4c2d09953a3340e74.zip | |
[PATCH] mm: nommu use compound pages
Now that compound page handling is properly fixed in the VM, move nommu
over to using compound pages rather than rolling their own refcounting.
nommu vm page refcounting is broken anyway, but there is no need to have
divergent code in the core VM now, nor when it gets fixed.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: David Howells <dhowells@redhat.com>
(Needs testing, please).
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/ramfs')
| -rw-r--r-- | fs/ramfs/file-nommu.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/ramfs/file-nommu.c b/fs/ramfs/file-nommu.c index 3f810acd0bfa..b1ca234068f6 100644 --- a/fs/ramfs/file-nommu.c +++ b/fs/ramfs/file-nommu.c @@ -87,8 +87,7 @@ static int ramfs_nommu_expand_for_mapping(struct inode *inode, size_t newsize) xpages = 1UL << order; npages = (newsize + PAGE_SIZE - 1) >> PAGE_SHIFT; - for (loop = 0; loop < npages; loop++) - set_page_count(pages + loop, 1); + split_page(pages, order); /* trim off any pages we don't actually require */ for (loop = npages; loop < xpages; loop++) |