Add support for redirection replay of blktrace traces to another device

[fio.git] / verify.c

diff --git a/verify.c b/verify.c
index 265bd5563210bcb1db2cadd69c127e8f4c79869f..7957bd4110d88bea8aecc242c6460f739871ef99 100644 (file)
--- a/verify.c
+++ b/verify.c
@@ -22,7 +22,7 @@
 #include "crc/sha512.h"
 #include "crc/sha1.h"
 
-static void fill_pattern(struct thread_data *td, void *p, unsigned int len)
+void fill_pattern(struct thread_data *td, void *p, unsigned int len, struct io_u *io_u)
 {
        switch (td->o.verify_pattern_bytes) {
        case 0:
@@ -30,13 +30,23 @@ static void fill_pattern(struct thread_data *td, void *p, unsigned int len)
                fill_random_buf(p, len);
                break;
        case 1:
+               if (io_u->buf_filled_len >= len) {
+                       dprint(FD_VERIFY, "using already filled verify pattern b=0 len=%u\n", len);
+                       return;
+               }
                dprint(FD_VERIFY, "fill verify pattern b=0 len=%u\n", len);
                memset(p, td->o.verify_pattern[0], len);
+               io_u->buf_filled_len = len;
                break;
        default: {
                unsigned int i = 0, size = 0;
                unsigned char *b = p;
 
+               if (io_u->buf_filled_len >= len) {
+                       dprint(FD_VERIFY, "using already filled verify pattern b=%d len=%u\n",
+                                       td->o.verify_pattern_bytes, len);
+                       return;
+               }
                dprint(FD_VERIFY, "fill verify pattern b=%d len=%u\n",
                                        td->o.verify_pattern_bytes, len);
 
@@ -47,6 +57,7 @@ static void fill_pattern(struct thread_data *td, void *p, unsigned int len)
                        memcpy(b+i, td->o.verify_pattern, size);
                        i += size;
                }
+               io_u->buf_filled_len = len;
                break;
                }
        }
@@ -675,7 +686,7 @@ void populate_verify_io_u(struct thread_data *td, struct io_u *io_u)
        if (td->o.verify == VERIFY_NULL)
                return;
 
-       fill_pattern(td, p, io_u->buflen);
+       fill_pattern(td, p, io_u->buflen, io_u);
 
        hdr_inc = io_u->buflen;
        if (td->o.verify_interval)
@@ -875,12 +886,16 @@ done:
 int verify_async_init(struct thread_data *td)
 {
        int i, ret;
+       pthread_attr_t attr;
+
+       pthread_attr_init(&attr);
+       pthread_attr_setstacksize(&attr, PTHREAD_STACK_MIN);
 
        td->verify_thread_exit = 0;
 
        td->verify_threads = malloc(sizeof(pthread_t) * td->o.verify_async);
        for (i = 0; i < td->o.verify_async; i++) {
-               ret = pthread_create(&td->verify_threads[i], NULL,
+               ret = pthread_create(&td->verify_threads[i], &attr,
                                        verify_async_thread, td);
                if (ret) {
                        log_err("fio: async verify creation failed: %s\n",
@@ -896,6 +911,8 @@ int verify_async_init(struct thread_data *td)
                td->nr_verify_threads++;
        }
 
+       pthread_attr_destroy(&attr);
+
        if (i != td->o.verify_async) {
                log_err("fio: only %d verify threads started, exiting\n", i);
                td->verify_thread_exit = 1;