Now, Anyone don't maintain cramfs. I don't know who is maintain romfs. so I send this patch to linux-mm, lkml, linux-dev. I am not sure my thought is right. When readpage is called, page with argument in readpage is just new allocated because kernel can't find that page in page cache. At this time, any user process can't map the page to their address space. so, I think D-cache aliasing probelm never occur. It make sense ? --- diff --git a/arch/arm/mach-integrator/clock.h b/arch/arm/mach-integrator/clock.h deleted file mode 100644 index e69de29..0000000 diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c index a07338d..40c8b84 100644 --- a/fs/cramfs/inode.c +++ b/fs/cramfs/inode.c @@ -492,7 +492,6 @@ static int cramfs_readpage(struct file *file, struct page * page) pgdata = kmap(page); memset(pgdata + bytes_filled, 0, PAGE_CACHE_SIZE - bytes_filled); kunmap(page); - flush_dcache_page(page); SetPageUptodate(page); unlock_page(page); return 0; diff --git a/fs/romfs/inode.c b/fs/romfs/inode.c index 98a232f..d008262 100644 --- a/fs/romfs/inode.c +++ b/fs/romfs/inode.c @@ -454,7 +454,6 @@ romfs_readpage(struct file *file, struct page * page) if (!result) SetPageUptodate(page); - flush_dcache_page(page); unlock_page(page); -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
