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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block patches

# gpg: Signature made Fri 15 Aug 2014 14:07:42 BST using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"

* remotes/kevin/tags/for-upstream: (59 commits)
  block: Catch !bs->drv in bdrv_check()
  iotests: Add test for image header overlap
  qcow2: Catch !*host_offset for data allocation
  qcow2: Return useful error code in refcount_init()
  mirror: Handle failure for potentially large allocations
  vpc: Handle failure for potentially large allocations
  vmdk: Handle failure for potentially large allocations
  vhdx: Handle failure for potentially large allocations
  vdi: Handle failure for potentially large allocations
  rbd: Handle failure for potentially large allocations
  raw-win32: Handle failure for potentially large allocations
  raw-posix: Handle failure for potentially large allocations
  qed: Handle failure for potentially large allocations
  qcow2: Handle failure for potentially large allocations
  qcow1: Handle failure for potentially large allocations
  parallels: Handle failure for potentially large allocations
  nfs: Handle failure for potentially large allocations
  iscsi: Handle failure for potentially large allocations
  dmg: Handle failure for potentially large allocations
  curl: Handle failure for potentially large allocations
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2014-08-15 14:49:50 +01:00
commit f2fb1da941
57 changed files with 2509 additions and 480 deletions
Download patch file Download diff file Expand all files Collapse all files

98
qemu-img.c
View file

@ -960,7 +960,6 @@ static int img_compare(int argc, char **argv)
int64_t sector_num = 0;
int64_t nb_sectors;
int c, pnum;
uint64_t bs_sectors;
uint64_t progress_base;
for (;;) {
@ -1022,10 +1021,20 @@ static int img_compare(int argc, char **argv)
buf1 = qemu_blockalign(bs1, IO_BUF_SIZE);
buf2 = qemu_blockalign(bs2, IO_BUF_SIZE);
bdrv_get_geometry(bs1, &bs_sectors);
total_sectors1 = bs_sectors;
bdrv_get_geometry(bs2, &bs_sectors);
total_sectors2 = bs_sectors;
total_sectors1 = bdrv_nb_sectors(bs1);
if (total_sectors1 < 0) {
error_report("Can't get size of %s: %s",
filename1, strerror(-total_sectors1));
ret = 4;
goto out;
}
total_sectors2 = bdrv_nb_sectors(bs2);
if (total_sectors2 < 0) {
error_report("Can't get size of %s: %s",
filename2, strerror(-total_sectors2));
ret = 4;
goto out;
}
total_sectors = MIN(total_sectors1, total_sectors2);
progress_base = MAX(total_sectors1, total_sectors2);
@ -1187,7 +1196,7 @@ static int img_convert(int argc, char **argv)
BlockDriver *drv, *proto_drv;
BlockDriverState **bs = NULL, *out_bs = NULL;
int64_t total_sectors, nb_sectors, sector_num, bs_offset;
uint64_t bs_sectors;
int64_t *bs_sectors = NULL;
uint8_t * buf = NULL;
size_t bufsectors = IO_BUF_SIZE / BDRV_SECTOR_SIZE;
const uint8_t *buf1;
@ -1328,7 +1337,8 @@ static int img_convert(int argc, char **argv)
qemu_progress_print(0, 100);
bs = g_malloc0(bs_n * sizeof(BlockDriverState *));
bs = g_new0(BlockDriverState *, bs_n);
bs_sectors = g_new(int64_t, bs_n);
total_sectors = 0;
for (bs_i = 0; bs_i < bs_n; bs_i++) {
@ -1342,8 +1352,14 @@ static int img_convert(int argc, char **argv)
ret = -1;
goto out;
}
bdrv_get_geometry(bs[bs_i], &bs_sectors);
total_sectors += bs_sectors;
bs_sectors[bs_i] = bdrv_nb_sectors(bs[bs_i]);
if (bs_sectors[bs_i] < 0) {
error_report("Could not get size of %s: %s",
argv[optind + bs_i], strerror(-bs_sectors[bs_i]));
ret = -1;
goto out;
}
total_sectors += bs_sectors[bs_i];
}
if (sn_opts) {
@ -1461,7 +1477,6 @@ static int img_convert(int argc, char **argv)
bs_i = 0;
bs_offset = 0;
bdrv_get_geometry(bs[0], &bs_sectors);
/* increase bufsectors from the default 4096 (2M) if opt_transfer_length
* or discard_alignment of the out_bs is greater. Limit to 32768 (16MB)
@ -1474,13 +1489,13 @@ static int img_convert(int argc, char **argv)
buf = qemu_blockalign(out_bs, bufsectors * BDRV_SECTOR_SIZE);
if (skip_create) {
int64_t output_length = bdrv_getlength(out_bs);
if (output_length < 0) {
int64_t output_sectors = bdrv_nb_sectors(out_bs);
if (output_sectors < 0) {
error_report("unable to get output image length: %s\n",
strerror(-output_length));
strerror(-output_sectors));
ret = -1;
goto out;
} else if (output_length < total_sectors << BDRV_SECTOR_BITS) {
} else if (output_sectors < total_sectors) {
error_report("output file is smaller than input file");
ret = -1;
goto out;
@ -1528,19 +1543,19 @@ static int img_convert(int argc, char **argv)
buf2 = buf;
while (remainder > 0) {
int nlow;
while (bs_num == bs_sectors) {
while (bs_num == bs_sectors[bs_i]) {
bs_offset += bs_sectors[bs_i];
bs_i++;
assert (bs_i < bs_n);
bs_offset += bs_sectors;
bdrv_get_geometry(bs[bs_i], &bs_sectors);
bs_num = 0;
/* printf("changing part: sector_num=%" PRId64 ", "
"bs_i=%d, bs_offset=%" PRId64 ", bs_sectors=%" PRId64
"\n", sector_num, bs_i, bs_offset, bs_sectors); */
"\n", sector_num, bs_i, bs_offset, bs_sectors[bs_i]); */
}
assert (bs_num < bs_sectors);
assert (bs_num < bs_sectors[bs_i]);
nlow = (remainder > bs_sectors - bs_num) ? bs_sectors - bs_num : remainder;
nlow = remainder > bs_sectors[bs_i] - bs_num
? bs_sectors[bs_i] - bs_num : remainder;
ret = bdrv_read(bs[bs_i], bs_num, buf2, nlow);
if (ret < 0) {
@ -1601,14 +1616,13 @@ restart:
break;
}
while (sector_num - bs_offset >= bs_sectors) {
while (sector_num - bs_offset >= bs_sectors[bs_i]) {
bs_offset += bs_sectors[bs_i];
bs_i ++;
assert (bs_i < bs_n);
bs_offset += bs_sectors;
bdrv_get_geometry(bs[bs_i], &bs_sectors);
/* printf("changing part: sector_num=%" PRId64 ", bs_i=%d, "
"bs_offset=%" PRId64 ", bs_sectors=%" PRId64 "\n",
sector_num, bs_i, bs_offset, bs_sectors); */
sector_num, bs_i, bs_offset, bs_sectors[bs_i]); */
}
if ((out_baseimg || has_zero_init) &&
@ -1661,7 +1675,7 @@ restart:
}
}
n = MIN(n, bs_sectors - (sector_num - bs_offset));
n = MIN(n, bs_sectors[bs_i] - (sector_num - bs_offset));
sectors_read += n;
if (count_allocated_sectors) {
@ -1719,6 +1733,7 @@ out:
}
g_free(bs);
}
g_free(bs_sectors);
fail_getopt:
g_free(options);
@ -2418,9 +2433,9 @@ static int img_rebase(int argc, char **argv)
* the image is the same as the original one at any time.
*/
if (!unsafe) {
uint64_t num_sectors;
uint64_t old_backing_num_sectors;
uint64_t new_backing_num_sectors = 0;
int64_t num_sectors;
int64_t old_backing_num_sectors;
int64_t new_backing_num_sectors = 0;
uint64_t sector;
int n;
uint8_t * buf_old;
@ -2430,10 +2445,31 @@ static int img_rebase(int argc, char **argv)
buf_old = qemu_blockalign(bs, IO_BUF_SIZE);
buf_new = qemu_blockalign(bs, IO_BUF_SIZE);
bdrv_get_geometry(bs, &num_sectors);
bdrv_get_geometry(bs_old_backing, &old_backing_num_sectors);
num_sectors = bdrv_nb_sectors(bs);
if (num_sectors < 0) {
error_report("Could not get size of '%s': %s",
filename, strerror(-num_sectors));
ret = -1;
goto out;
}
old_backing_num_sectors = bdrv_nb_sectors(bs_old_backing);
if (old_backing_num_sectors < 0) {
char backing_name[1024];
bdrv_get_backing_filename(bs, backing_name, sizeof(backing_name));
error_report("Could not get size of '%s': %s",
backing_name, strerror(-old_backing_num_sectors));
ret = -1;
goto out;
}
if (bs_new_backing) {
bdrv_get_geometry(bs_new_backing, &new_backing_num_sectors);
new_backing_num_sectors = bdrv_nb_sectors(bs_new_backing);
if (new_backing_num_sectors < 0) {
error_report("Could not get size of '%s': %s",
out_baseimg, strerror(-new_backing_num_sectors));
ret = -1;
goto out;
}
}
if (num_sectors != 0) {