Extend --readonly

[fio.git] / filesetup.c

diff --git a/filesetup.c b/filesetup.c
index ff1385cdd02675f252b68502b4d59badd022d7d1..47ddacfcddef8083b97e6c7f487af14d79475ae4 100644 (file)
--- a/filesetup.c
+++ b/filesetup.c
@@ -18,6 +18,11 @@ static int extend_file(struct thread_data *td, struct fio_file *f)
        unsigned int bs;
        char *b;
 
+       if (read_only) {
+               log_err("fio: refusing extend of file due to read-only\n");
+               return 0;
+       }
+
        /*
         * check if we need to lay the file out complete again. fio
         * does that for operations involving reads, or for writes
@@ -228,6 +233,8 @@ int generic_open_file(struct thread_data *td, struct fio_file *f)
                flags |= O_SYNC;
 
        if (td_write(td)) {
+               assert(!read_only);
+
                flags |= O_RDWR;
 
                if (f->filetype == FIO_TYPE_FILE)
@@ -238,7 +245,7 @@ int generic_open_file(struct thread_data *td, struct fio_file *f)
                else
                        f->fd = open(f->file_name, flags, 0600);
        } else {
-               if (f->filetype == FIO_TYPE_CHAR)
+               if (f->filetype == FIO_TYPE_CHAR && !read_only)
                        flags |= O_RDWR;
                else
                        flags |= O_RDONLY;