qcow2: Inform block layer about discard boundaries

[mirror_qemu.git] / qemu-img.c

diff --git a/qemu-img.c b/qemu-img.c
index 4dfb27df3717f4b6f022ded23b09583c8141c8ef..f204d04136824e2141d9bad1c5ea2be4acaa9b39 100644 (file)
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -44,7 +44,7 @@
 #include <getopt.h>
 
 #define QEMU_IMG_VERSION "qemu-img version " QEMU_VERSION QEMU_PKGVERSION \
-                          ", Copyright (c) 2004-2008 Fabrice Bellard\n"
+                          ", " QEMU_COPYRIGHT "\n"
 
 typedef struct img_cmd_t {
     const char *name;
@@ -920,7 +920,7 @@ static int img_commit(int argc, char **argv)
         .bs   = bs,
     };
 
-    commit_active_start(bs, base_bs, 0, BLOCKDEV_ON_ERROR_REPORT,
+    commit_active_start("commit", bs, base_bs, 0, BLOCKDEV_ON_ERROR_REPORT,
                         common_block_job_cb, &cbi, &local_err);
     if (local_err) {
         goto done;
@@ -1647,7 +1647,7 @@ static int convert_do_copy(ImgConvertState *s)
     if (!s->has_zero_init && !s->target_has_backing &&
         bdrv_can_write_zeroes_with_unmap(blk_bs(s->target)))
     {
-        ret = bdrv_make_zero(blk_bs(s->target), BDRV_REQ_MAY_UNMAP);
+        ret = blk_make_zero(s->target, BDRV_REQ_MAY_UNMAP);
         if (ret == 0) {
             s->has_zero_init = true;
         }
@@ -2084,13 +2084,14 @@ static int img_convert(int argc, char **argv)
     }
     out_bs = blk_bs(out_blk);
 
-    /* increase bufsectors from the default 4096 (2M) if opt_transfer_length
+    /* increase bufsectors from the default 4096 (2M) if opt_transfer
      * or discard_alignment of the out_bs is greater. Limit to 32768 (16MB)
      * as maximum. */
     bufsectors = MIN(32768,
-                     MAX(bufsectors, MAX(out_bs->bl.opt_transfer_length,
-                                         out_bs->bl.discard_alignment))
-                    );
+                     MAX(bufsectors,
+                         MAX(out_bs->bl.opt_transfer >> BDRV_SECTOR_BITS,
+                             out_bs->bl.pdiscard_alignment >>
+                             BDRV_SECTOR_BITS)));
 
     if (skip_create) {
         int64_t output_sectors = blk_nb_sectors(out_blk);
@@ -3282,7 +3283,7 @@ static int img_resize(int argc, char **argv)
         error_report("Image is read-only");
         break;
     default:
-        error_report("Error resizing image (%d)", -ret);
+        error_report("Error resizing image: %s", strerror(-ret));
         break;
     }
 out:
@@ -3489,7 +3490,7 @@ typedef struct BenchData {
 static void bench_undrained_flush_cb(void *opaque, int ret)
 {
     if (ret < 0) {
-        error_report("Failed flush request: %s\n", strerror(-ret));
+        error_report("Failed flush request: %s", strerror(-ret));
         exit(EXIT_FAILURE);
     }
 }
@@ -3500,7 +3501,7 @@ static void bench_cb(void *opaque, int ret)
     BlockAIOCB *acb;
 
     if (ret < 0) {
-        error_report("Failed request: %s\n", strerror(-ret));
+        error_report("Failed request: %s", strerror(-ret));
         exit(EXIT_FAILURE);
     }
 
@@ -3864,7 +3865,7 @@ int main(int argc, char **argv)
         return 0;
     }
     argv += optind;
-    optind = 1;
+    optind = 0;
 
     if (!trace_init_backends()) {
         exit(1);