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authorNick Piggin <npiggin@suse.de>2008-04-28 05:13:02 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-28 11:58:23 -0400
commit70688e4dd1647f0ceb502bbd5964fa344c5eb411 (patch)
treee0bd8c3b4b6050c067a453d800c2e87948d1abaf /mm/madvise.c
parent30afcb4bd2762fa4b87b17ada9500aa46dc10b1b (diff)
xip: support non-struct page backed memory
Convert XIP to support non-struct page backed memory, using VM_MIXEDMAP for the user mappings. This requires the get_xip_page API to be changed to an address based one. Improve the API layering a little bit too, while we're here. This is required in order to support XIP filesystems on memory that isn't backed with struct page (but memory with struct page is still supported too). Signed-off-by: Nick Piggin <npiggin@suse.de> Acked-by: Carsten Otte <cotte@de.ibm.com> Cc: Jared Hulbert <jaredeh@gmail.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/madvise.c')
-rw-r--r--mm/madvise.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/madvise.c b/mm/madvise.c
index 93ee375b38e7..23a0ec3e0ea0 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -112,7 +112,7 @@ static long madvise_willneed(struct vm_area_struct * vma,
112 if (!file) 112 if (!file)
113 return -EBADF; 113 return -EBADF;
114 114
115 if (file->f_mapping->a_ops->get_xip_page) { 115 if (file->f_mapping->a_ops->get_xip_mem) {
116 /* no bad return value, but ignore advice */ 116 /* no bad return value, but ignore advice */
117 return 0; 117 return 0;
118 } 118 }