The patch titled bootmem: revisit bitmap size calculations has been removed from the -mm tree. Its filename was bootmem-revisit-bitmap-size-calculations.patch This patch was dropped because it was merged into mainline or a subsystem tree The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: bootmem: revisit bitmap size calculations From: Johannes Weiner <hannes@xxxxxxxxxxxx> Reincarnate get_mapsize as bootmap_bytes and implement bootmem_bootmap_pages on top of it. Adjust users of these helpers and make free_all_bootmem_core use bootmem_bootmap_pages instead of open-coding it. Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/bootmem.c | 27 +++++++++------------------ 1 file changed, 9 insertions(+), 18 deletions(-) diff -puN mm/bootmem.c~bootmem-revisit-bitmap-size-calculations mm/bootmem.c --- a/mm/bootmem.c~bootmem-revisit-bitmap-size-calculations +++ a/mm/bootmem.c @@ -50,17 +50,11 @@ early_param("bootmem_debug", bootmem_deb __FUNCTION__, ## args); \ }) -/* - * Given an initialised bdata, it returns the size of the boot bitmap - */ -static unsigned long __init get_mapsize(bootmem_data_t *bdata) +static unsigned long __init bootmap_bytes(unsigned long pages) { - unsigned long mapsize; - unsigned long start = PFN_DOWN(bdata->node_boot_start); - unsigned long end = bdata->node_low_pfn; + unsigned long bytes = (pages + 7) / 8; - mapsize = ((end - start) + 7) / 8; - return ALIGN(mapsize, sizeof(long)); + return ALIGN(bytes, sizeof(long)); } /** @@ -69,13 +63,9 @@ static unsigned long __init get_mapsize( */ unsigned long __init bootmem_bootmap_pages(unsigned long pages) { - unsigned long mapsize; - - mapsize = (pages+7)/8; - mapsize = (mapsize + ~PAGE_MASK) & PAGE_MASK; - mapsize >>= PAGE_SHIFT; + unsigned long bytes = bootmap_bytes(pages); - return mapsize; + return PAGE_ALIGN(bytes) >> PAGE_SHIFT; } /* @@ -117,7 +107,7 @@ static unsigned long __init init_bootmem * Initially all pages are reserved - setup_arch() has to * register free RAM areas explicitly. */ - mapsize = get_mapsize(bdata); + mapsize = bootmap_bytes(end - start); memset(bdata->node_bootmem_map, 0xff, mapsize); bdebug("nid=%td start=%lx map=%lx end=%lx mapsize=%lx\n", @@ -160,7 +150,7 @@ static unsigned long __init free_all_boo struct page *page; unsigned long pfn; unsigned long i, count; - unsigned long idx; + unsigned long idx, pages; unsigned long *map; int gofast = 0; @@ -211,7 +201,8 @@ static unsigned long __init free_all_boo * needed anymore: */ page = virt_to_page(bdata->node_bootmem_map); - idx = (get_mapsize(bdata) + PAGE_SIZE-1) >> PAGE_SHIFT; + pages = bdata->node_low_pfn - PFN_DOWN(bdata->node_boot_start); + idx = bootmem_bootmap_pages(pages); for (i = 0; i < idx; i++, page++) __free_pages_bootmem(page, 0); count += i; _ Patches currently in -mm which might be from hannes@xxxxxxxxxxxx are origin.patch linux-next.patch git-xtensa.patch documentation-update-codingstyle-tips-for-emacs-users-v2.patch mm-more-likely-reclaim-madv_sequential-mappings.patch mm-print-swapcache-page-count-in-show_swap_cache_info.patch lib-generic-show_mem.patch alpha-use-generic-show_mem.patch avr32-use-generic-show_mem.patch blackfin-use-generic-show_mem.patch xtensa-use-generic-show_mem.patch x86-use-generic-show_mem.patch um-use-generic-show_mem.patch sparc64-use-generic-show_mem.patch sh-use-generic-show_mem.patch s390-use-generic-show_mem.patch powerpc-use-generic-show_mem.patch mn10300-use-generic-show_mem.patch h8300-use-generic-show_mem.patch mips-use-generic-show_mem.patch m68knommu-use-generic-show_mem.patch m68k-use-generic-show_mem.patch m32r-use-generic-show_mem.patch frv-use-generic-show_mem.patch cris-use-generic-show_mem.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html