Fix reading multiple blktrace replay files

During fio replay, the input file would be checked first by is_blktrace()
if it is a blktrace output file. If so, however, this would treat the
read_iolog option as one single file and ignore multiple files seperated by ":"

This commit contains the fixation that read input file name by index
before doing the check

Signed-off-by: luye <luye.yelu@bytedance.com>

diff --git a/iolog.c b/iolog.c
index fa40c8572664a4e14d1e53d39eae3547dc43b672..cf264916a9ecd83f7b3079bd186573441dba65fb 100644 (file)
--- a/iolog.c
+++ b/iolog.c
@@ -607,12 +607,11 @@ static int open_socket(const char *path)
 /*
  * open iolog, check version, and call appropriate parser
  */
-static bool init_iolog_read(struct thread_data *td)
+static bool init_iolog_read(struct thread_data *td, char *fname)
 {
-       char buffer[256], *p, *fname;
+       char buffer[256], *p;
        FILE *f = NULL;
 
-       fname = get_name_by_idx(td->o.read_iolog_file, td->subjob_number);
        dprint(FD_IO, "iolog: name=%s\n", fname);
 
        if (is_socket(fname)) {
@@ -701,15 +700,16 @@ bool init_iolog(struct thread_data *td)
 
        if (td->o.read_iolog_file) {
                int need_swap;
+               char * fname = get_name_by_idx(td->o.read_iolog_file, td->subjob_number);
 
                /*
                 * Check if it's a blktrace file and load that if possible.
                 * Otherwise assume it's a normal log file and load that.
                 */
-               if (is_blktrace(td->o.read_iolog_file, &need_swap))
-                       ret = load_blktrace(td, td->o.read_iolog_file, need_swap);
+               if (is_blktrace(fname, &need_swap))
+                       ret = load_blktrace(td, fname, need_swap);
                else
-                       ret = init_iolog_read(td);
+                       ret = init_iolog_read(td, fname);
        } else if (td->o.write_iolog_file)
                ret = init_iolog_write(td);
        else