Add --debug for enabling internal dumps on various actions

[fio.git] / log.c

diff --git a/log.c b/log.c
index 7a3327e5d29c2909700ba3413ae1bd903ce1f197..5b21ee224d2b7a24131563581e5ff4e019f7c118 100644 (file)
--- a/log.c
+++ b/log.c
@@ -84,6 +84,9 @@ int read_iolog_get(struct thread_data *td, struct io_u *io_u)
                io_u->file = &td->files[ipo->fileno];
                get_file(io_u->file);
 
+               dprint(FD_IO, "iolog: get %llu/%lu/%s\n", io_u->offset,
+                                       io_u->buflen, io_u->file->file_name);
+
                if (ipo->delay)
                        iolog_delay(td, ipo->delay);
 
@@ -233,9 +236,14 @@ static int read_iolog2(struct thread_data *td, FILE *f)
                        
                if (rw == DDIR_READ)
                        reads++;
-               else if (rw == DDIR_WRITE)
+               else if (rw == DDIR_WRITE) {
                        writes++;
-               else if (rw != DDIR_SYNC && rw != DDIR_INVAL) {
+                       /*
+                        * Don't add a write for ro mode
+                        */
+                       if (read_only)
+                               continue;
+               } else if (rw != DDIR_SYNC && rw != DDIR_INVAL) {
                        log_err("bad ddir: %d\n", rw);
                        continue;
                }
@@ -256,12 +264,18 @@ static int read_iolog2(struct thread_data *td, FILE *f)
                        ipo->file_action = file_action;
                }
                list_add_tail(&ipo->list, &td->io_log_list);
+               td->total_io_size += bytes;
        }
 
        free(str);
        free(act);
        free(fname);
 
+       if (writes && read_only) {
+               log_err("fio: <%s> skips replay of %d writes due to read-only\n", td->o.name, writes);
+               writes = 0;
+       }
+
        if (!reads && !writes)
                return 1;
        else if (reads && !writes)
@@ -283,7 +297,7 @@ static int read_iolog(struct thread_data *td, FILE *f)
        unsigned int bytes;
        char *str, *p;
        int reads, writes;
-       enum fio_ddir rw;
+       int rw;
 
        /*
         * Read in the read iolog and store it, reuse the infrastructure
@@ -300,9 +314,14 @@ static int read_iolog(struct thread_data *td, FILE *f)
                }
                if (rw == DDIR_READ)
                        reads++;
-               else if (rw == DDIR_WRITE)
+               else if (rw == DDIR_WRITE) {
                        writes++;
-               else if (rw != DDIR_SYNC) {
+                       /*
+                        * Don't add a write for ro mode
+                        */
+                       if (read_only)
+                               continue;
+               } else if (rw != DDIR_SYNC) {
                        log_err("bad ddir: %d\n", rw);
                        continue;
                }
@@ -312,14 +331,20 @@ static int read_iolog(struct thread_data *td, FILE *f)
                INIT_LIST_HEAD(&ipo->list);
                ipo->offset = offset;
                ipo->len = bytes;
-               ipo->ddir = rw;
+               ipo->ddir = (enum fio_ddir) rw;
                if (bytes > td->o.max_bs[rw])
                        td->o.max_bs[rw] = bytes;
                list_add_tail(&ipo->list, &td->io_log_list);
+               td->total_io_size += bytes;
        }
 
        free(str);
 
+       if (writes && read_only) {
+               log_err("fio: <%s> skips replay of %d writes due to read-only\n", td->o.name, writes);
+               writes = 0;
+       }
+
        if (!reads && !writes)
                return 1;
        else if (reads && !writes)