Impact: code simplification. Cc: Nick Piggin Cc: Linus Torvalds Signed-off-by: Wu Fengguang --- mm/fadvise.c | 2 +- mm/filemap.c | 3 +-- mm/madvise.c | 3 +-- mm/readahead.c | 1 + 4 files changed, 4 insertions(+), 5 deletions(-) --- mm.orig/mm/fadvise.c +++ mm/mm/fadvise.c @@ -101,7 +101,7 @@ SYSCALL_DEFINE(fadvise64_64)(int fd, lof ret = force_page_cache_readahead(mapping, file, start_index, - max_sane_readahead(nrpages)); + nrpages); if (ret > 0) ret = 0; break; --- mm.orig/mm/filemap.c +++ mm/mm/filemap.c @@ -1389,8 +1389,7 @@ do_readahead(struct address_space *mappi if (!mapping || !mapping->a_ops || !mapping->a_ops->readpage) return -EINVAL; - force_page_cache_readahead(mapping, filp, index, - max_sane_readahead(nr)); + force_page_cache_readahead(mapping, filp, index, nr); return 0; } --- mm.orig/mm/madvise.c +++ mm/mm/madvise.c @@ -123,8 +123,7 @@ static long madvise_willneed(struct vm_a end = vma->vm_end; end = ((end - vma->vm_start) >> PAGE_SHIFT) + vma->vm_pgoff; - force_page_cache_readahead(file->f_mapping, - file, start, max_sane_readahead(end - start)); + force_page_cache_readahead(file->f_mapping, file, start, end - start); return 0; } --- mm.orig/mm/readahead.c +++ mm/mm/readahead.c @@ -210,6 +210,7 @@ int force_page_cache_readahead(struct ad if (unlikely(!mapping->a_ops->readpage && !mapping->a_ops->readpages)) return -EINVAL; + nr_to_read = max_sane_readahead(nr_to_read); while (nr_to_read) { int err; -- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/