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| author | Hugh Dickins <hugh@veritas.com> | 2005-10-29 18:15:59 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-10-29 21:40:37 -0700 |
| commit | 65500d234e74fc4e8f18e1a429bc24e51e75de4a (patch) | |
| tree | 2bae8c3622b6537dbd142ba2744c7cc9430d3b69 /mm/shmem.c | |
| parent | 7c1fd6b964860cdcf44b6b98d7dcd8cc16a0a26d (diff) | |
| download | kernel-common-65500d234e74fc4e8f18e1a429bc24e51e75de4a.tar.gz kernel-common-65500d234e74fc4e8f18e1a429bc24e51e75de4a.tar.bz2 kernel-common-65500d234e74fc4e8f18e1a429bc24e51e75de4a.zip | |
[PATCH] mm: page fault handlers tidyup
Impose a little more consistency on the page fault handlers do_wp_page,
do_swap_page, do_anonymous_page, do_no_page, do_file_page: why not pass their
arguments in the same order, called the same names?
break_cow is all very well, but what it did was inlined elsewhere: easier to
compare if it's brought back into do_wp_page.
do_file_page's fallback to do_no_page dates from a time when we were testing
pte_file by using it wherever possible: currently it's peculiar to nonlinear
vmas, so just check that. BUG_ON if not? Better not, it's probably page
table corruption, so just show the pte: hmm, there's a pte_ERROR macro, let's
use that for do_wp_page's invalid pfn too.
Hah! Someone in the ppc64 world noticed pte_ERROR was unused so removed it:
restored (and say "pud" not "pmd" in its pud_ERROR).
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/shmem.c')
| -rw-r--r-- | mm/shmem.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/shmem.c b/mm/shmem.c index 55e04a0734c1..6796311a23ef 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -1201,7 +1201,7 @@ static int shmem_populate(struct vm_area_struct *vma, page_cache_release(page); return err; } - } else { + } else if (vma->vm_flags & VM_NONLINEAR) { /* No page was found just because we can't read it in * now (being here implies nonblock != 0), but the page * may exist, so set the PTE to fault it in later. */ |