X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=engines%2Fmmap.c;h=bc038f4febac88d68167f30e09d212942bbce582;hb=97900ebfb0192130823dce8aa8f36916313a1c18;hp=14e4013de83cac82d09a1eafe013c18797b08970;hpb=f672ef67527a27eb2bbc59aa6041a42d88a00838;p=fio.git diff --git a/engines/mmap.c b/engines/mmap.c index 14e4013d..bc038f4f 100644 --- a/engines/mmap.c +++ b/engines/mmap.c @@ -15,12 +15,11 @@ #include "../verify.h" /* - * Limits us to 1GB of mapped files in total + * Limits us to 1GiB of mapped files in total */ #define MMAP_TOTAL_SZ (1 * 1024 * 1024 * 1024UL) static unsigned long mmap_map_size; -static unsigned long mmap_map_mask; struct fio_mmap_data { void *mmap_ptr; @@ -68,11 +67,10 @@ static int fio_mmap_file(struct thread_data *td, struct fio_file *f, } #ifdef FIO_MADV_FREE - if (f->filetype == FIO_TYPE_BD) + if (f->filetype == FIO_TYPE_BLOCK) (void) posix_madvise(fmd->mmap_ptr, fmd->mmap_sz, FIO_MADV_FREE); #endif - err: if (td->error && fmd->mmap_ptr) munmap(fmd->mmap_ptr, length); @@ -208,26 +206,15 @@ static int fio_mmapio_queue(struct thread_data *td, struct io_u *io_u) static int fio_mmapio_init(struct thread_data *td) { struct thread_options *o = &td->o; - unsigned long shift, mask; - if ((td->o.rw_min_bs & page_mask) && + if ((o->rw_min_bs & page_mask) && (o->odirect || o->fsync_blocks || o->fdatasync_blocks)) { log_err("fio: mmap options dictate a minimum block size of " "%llu bytes\n", (unsigned long long) page_size); return 1; } - mmap_map_size = MMAP_TOTAL_SZ / td->o.nr_files; - mask = mmap_map_size; - shift = 0; - do { - mask >>= 1; - if (!mask) - break; - shift++; - } while (1); - - mmap_map_mask = 1UL << shift; + mmap_map_size = MMAP_TOTAL_SZ / o->nr_files; return 0; }