X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=blktrace.c;h=efe9ce248a8c7f861a6aa5dbec9163f6d51ca90d;hp=1d33c6a43f6002b4f5c0de892398a6f9b8e54351;hb=7f125e7f3879d23e79bc2ef5eed678ddab3b5c70;hpb=55bfd8c81c25d7953b4d6f9320e46af5cb790b0c diff --git a/blktrace.c b/blktrace.c index 1d33c6a4..efe9ce24 100644 --- a/blktrace.c +++ b/blktrace.c @@ -3,9 +3,7 @@ */ #include #include -#include #include -#include #include "flist.h" #include "fio.h" @@ -129,37 +127,17 @@ static void trace_add_open_close_event(struct thread_data *td, int fileno, enum flist_add_tail(&ipo->list, &td->io_log_list); } -static int get_dev_blocksize(const char *dev, unsigned int *bs) +static int trace_add_file(struct thread_data *td, __u32 device) { - int fd; - - fd = open(dev, O_RDONLY); - if (fd < 0) - return 1; - - if (ioctl(fd, BLKSSZGET, bs) < 0) { - close(fd); - return 1; - } - - close(fd); - return 0; -} - -static int trace_add_file(struct thread_data *td, __u32 device, - unsigned int *bs) -{ - static unsigned int last_maj, last_min, last_fileno, last_bs; + static unsigned int last_maj, last_min, last_fileno; unsigned int maj = FMAJOR(device); unsigned int min = FMINOR(device); struct fio_file *f; - unsigned int i; char dev[256]; + unsigned int i; - if (last_maj == maj && last_min == min) { - *bs = last_bs; + if (last_maj == maj && last_min == min) return last_fileno; - } last_maj = maj; last_min = min; @@ -167,17 +145,14 @@ static int trace_add_file(struct thread_data *td, __u32 device, /* * check for this file in our list */ - for_each_file(td, f, i) { + for_each_file(td, f, i) if (f->major == maj && f->minor == min) { last_fileno = f->fileno; - last_bs = f->bs; - goto out; + return last_fileno; } - } strcpy(dev, "/dev"); if (blktrace_lookup_device(td->o.replay_redirect, dev, maj, min)) { - unsigned int this_bs; int fileno; if (td->o.replay_redirect) @@ -189,22 +164,13 @@ static int trace_add_file(struct thread_data *td, __u32 device, dprint(FD_BLKTRACE, "add devices %s\n", dev); fileno = add_file_exclusive(td, dev); - - if (get_dev_blocksize(dev, &this_bs)) - this_bs = 512; - td->o.open_files++; td->files[fileno]->major = maj; td->files[fileno]->minor = min; - td->files[fileno]->bs = this_bs; trace_add_open_close_event(td, fileno, FIO_LOG_OPEN_FILE); - last_fileno = fileno; - last_bs = this_bs; } -out: - *bs = last_bs; return last_fileno; } @@ -221,14 +187,14 @@ static void t_bytes_align(struct thread_options *o, struct blk_io_trace *t) */ static void store_ipo(struct thread_data *td, unsigned long long offset, unsigned int bytes, int rw, unsigned long long ttime, - int fileno, unsigned int bs) + int fileno) { struct io_piece *ipo; ipo = calloc(1, sizeof(*ipo)); init_ipo(ipo); - ipo->offset = offset * bs; + ipo->offset = offset * 512; if (td->o.replay_scale) ipo->offset = ipo->offset / td->o.replay_scale; ipo_bytes_align(td->o.replay_align, ipo); @@ -268,10 +234,9 @@ static void handle_trace_notify(struct blk_io_trace *t) static void handle_trace_discard(struct thread_data *td, struct blk_io_trace *t, unsigned long long ttime, - unsigned long *ios, unsigned int *rw_bs) + unsigned long *ios, unsigned int *bs) { struct io_piece *ipo; - unsigned int bs; int fileno; if (td->o.replay_skip & (1u << DDIR_TRIM)) @@ -279,17 +244,17 @@ static void handle_trace_discard(struct thread_data *td, ipo = calloc(1, sizeof(*ipo)); init_ipo(ipo); - fileno = trace_add_file(td, t->device, &bs); + fileno = trace_add_file(td, t->device); ios[DDIR_TRIM]++; - if (t->bytes > rw_bs[DDIR_TRIM]) - rw_bs[DDIR_TRIM] = t->bytes; + if (t->bytes > bs[DDIR_TRIM]) + bs[DDIR_TRIM] = t->bytes; td->o.size += t->bytes; INIT_FLIST_HEAD(&ipo->list); - ipo->offset = t->sector * bs; + ipo->offset = t->sector * 512; if (td->o.replay_scale) ipo->offset = ipo->offset / td->o.replay_scale; ipo_bytes_align(td->o.replay_align, ipo); @@ -311,13 +276,12 @@ static void dump_trace(struct blk_io_trace *t) static void handle_trace_fs(struct thread_data *td, struct blk_io_trace *t, unsigned long long ttime, unsigned long *ios, - unsigned int *rw_bs) + unsigned int *bs) { - unsigned int bs; int rw; int fileno; - fileno = trace_add_file(td, t->device, &bs); + fileno = trace_add_file(td, t->device); rw = (t->action & BLK_TC_ACT(BLK_TC_WRITE)) != 0; @@ -335,19 +299,18 @@ static void handle_trace_fs(struct thread_data *td, struct blk_io_trace *t, return; } - if (t->bytes > rw_bs[rw]) - rw_bs[rw] = t->bytes; + if (t->bytes > bs[rw]) + bs[rw] = t->bytes; ios[rw]++; td->o.size += t->bytes; - store_ipo(td, t->sector, t->bytes, rw, ttime, fileno, bs); + store_ipo(td, t->sector, t->bytes, rw, ttime, fileno); } static void handle_trace_flush(struct thread_data *td, struct blk_io_trace *t, unsigned long long ttime, unsigned long *ios) { struct io_piece *ipo; - unsigned int bs; int fileno; if (td->o.replay_skip & (1u << DDIR_SYNC)) @@ -355,7 +318,7 @@ static void handle_trace_flush(struct thread_data *td, struct blk_io_trace *t, ipo = calloc(1, sizeof(*ipo)); init_ipo(ipo); - fileno = trace_add_file(td, t->device, &bs); + fileno = trace_add_file(td, t->device); ipo->delay = ttime / 1000; ipo->ddir = DDIR_SYNC; @@ -818,6 +781,7 @@ err_file: err_out_file: fflush(merge_fp); fclose(merge_fp); + free(merge_buf); err_param: free(bcs);