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| author | Christoph Lameter <clameter@sgi.com> | 2008-02-04 22:28:35 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-05 09:44:14 -0800 |
| commit | aec2c3ed01ed54d0cdf7f6b7c4be217c045ac5ea (patch) | |
| tree | b4fcc3f69567eafe956d2fd0af37ba5ca008c531 /include | |
| parent | bf53d6f8fa467397a16de2a2500312ae26528d34 (diff) | |
| download | linux-aec2c3ed01ed54d0cdf7f6b7c4be217c045ac5ea.tar.gz linux-aec2c3ed01ed54d0cdf7f6b7c4be217c045ac5ea.tar.bz2 linux-aec2c3ed01ed54d0cdf7f6b7c4be217c045ac5ea.zip | |
VM: allow get_page_unless_zero on compound pages
Both slab defrag and the large blocksize patches need to ability to take
refcounts on compound pages. May be useful in other places as well.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mm.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index f28a0338574f..bcbe6979ff65 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -227,7 +227,7 @@ static inline int put_page_testzero(struct page *page) */ static inline int get_page_unless_zero(struct page *page) { - VM_BUG_ON(PageCompound(page)); + VM_BUG_ON(PageTail(page)); return atomic_inc_not_zero(&page->_count); } |