Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=535443f51543df61111bbd234300ae549d220448 Commit: 535443f51543df61111bbd234300ae549d220448 Parent: 7ff81078d8b9f3d05a27b7bd3786ffb1ef1b0d1f Author: Fengguang Wu <[EMAIL PROTECTED]> AuthorDate: Tue Oct 16 01:24:36 2007 -0700 Committer: Linus Torvalds <[EMAIL PROTECTED]> CommitDate: Tue Oct 16 09:42:52 2007 -0700
readahead: remove several readahead macros Remove VM_MAX_CACHE_HIT, MAX_RA_PAGES and MIN_RA_PAGES. Signed-off-by: Fengguang Wu <[EMAIL PROTECTED]> Cc: Rusty Russell <[EMAIL PROTECTED]> Signed-off-by: Andrew Morton <[EMAIL PROTECTED]> Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]> --- include/linux/mm.h | 2 -- mm/readahead.c | 10 +--------- 2 files changed, 1 insertions(+), 11 deletions(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index fbff8e4..291c4cc 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1106,8 +1106,6 @@ int write_one_page(struct page *page, int wait); /* readahead.c */ #define VM_MAX_READAHEAD 128 /* kbytes */ #define VM_MIN_READAHEAD 16 /* kbytes (includes current page) */ -#define VM_MAX_CACHE_HIT 256 /* max pages in a row in cache before - * turning readahead off */ int do_page_cache_readahead(struct address_space *mapping, struct file *filp, pgoff_t offset, unsigned long nr_to_read); diff --git a/mm/readahead.c b/mm/readahead.c index fd588ff..fc52f9f 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -22,16 +22,8 @@ void default_unplug_io_fn(struct backing_dev_info *bdi, struct page *page) } EXPORT_SYMBOL(default_unplug_io_fn); -/* - * Convienent macros for min/max read-ahead pages. - * Note that MAX_RA_PAGES is rounded down, while MIN_RA_PAGES is rounded up. - * The latter is necessary for systems with large page size(i.e. 64k). - */ -#define MAX_RA_PAGES (VM_MAX_READAHEAD*1024 / PAGE_CACHE_SIZE) -#define MIN_RA_PAGES DIV_ROUND_UP(VM_MIN_READAHEAD*1024, PAGE_CACHE_SIZE) - struct backing_dev_info default_backing_dev_info = { - .ra_pages = MAX_RA_PAGES, + .ra_pages = VM_MAX_READAHEAD * 1024 / PAGE_CACHE_SIZE, .state = 0, .capabilities = BDI_CAP_MAP_COPY, .unplug_io_fn = default_unplug_io_fn, - To unsubscribe from this list: send the line "unsubscribe git-commits-head" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html