diff options
| -rw-r--r-- | qemu-img.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/qemu-img.c b/qemu-img.c index 70c2403872..207535f4f7 100644 --- a/qemu-img.c +++ b/qemu-img.c @@ -30,6 +30,9 @@ #include <windows.h> #endif +/* Default to cache=writeback as data integrity is not important for qemu-tcg. */ +#define BRDV_O_FLAGS BDRV_O_CACHE_WB + static void __attribute__((noreturn)) error(const char *fmt, ...) { va_list ap; @@ -186,7 +189,7 @@ static BlockDriverState *bdrv_new_open(const char *filename, } else { drv = NULL; } - if (bdrv_open2(bs, filename, 0, drv) < 0) { + if (bdrv_open2(bs, filename, BRDV_O_FLAGS, drv) < 0) { error("Could not open '%s'", filename); } if (bdrv_is_encrypted(bs)) { @@ -317,7 +320,7 @@ static int img_commit(int argc, char **argv) } else { drv = NULL; } - if (bdrv_open2(bs, filename, 0, drv) < 0) { + if (bdrv_open2(bs, filename, BRDV_O_FLAGS, drv) < 0) { error("Could not open '%s'", filename); } ret = bdrv_commit(bs); @@ -691,7 +694,7 @@ static int img_info(int argc, char **argv) } else { drv = NULL; } - if (bdrv_open2(bs, filename, 0, drv) < 0) { + if (bdrv_open2(bs, filename, BRDV_O_FLAGS, drv) < 0) { error("Could not open '%s'", filename); } bdrv_get_format(bs, fmt_name, sizeof(fmt_name)); |