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Diffstat (limited to 'qemu-io-cmds.c')
-rw-r--r--qemu-io-cmds.c30
1 files changed, 18 insertions, 12 deletions
diff --git a/qemu-io-cmds.c b/qemu-io-cmds.c
index 6a0024b484..1e0ebb4575 100644
--- a/qemu-io-cmds.c
+++ b/qemu-io-cmds.c
@@ -1760,7 +1760,7 @@ out:
static int alloc_f(BlockBackend *blk, int argc, char **argv)
{
BlockDriverState *bs = blk_bs(blk);
- int64_t offset, sector_num, nb_sectors, remaining;
+ int64_t offset, sector_num, nb_sectors, remaining, count;
char s1[64];
int num, ret;
int64_t sum_alloc;
@@ -1776,18 +1776,24 @@ static int alloc_f(BlockBackend *blk, int argc, char **argv)
}
if (argc == 3) {
- nb_sectors = cvtnum(argv[2]);
- if (nb_sectors < 0) {
- print_cvtnum_err(nb_sectors, argv[2]);
+ count = cvtnum(argv[2]);
+ if (count < 0) {
+ print_cvtnum_err(count, argv[2]);
return 0;
- } else if (nb_sectors > INT_MAX) {
- printf("length argument cannot exceed %d, given %s\n",
- INT_MAX, argv[2]);
+ } else if (count > INT_MAX * BDRV_SECTOR_SIZE) {
+ printf("length argument cannot exceed %llu, given %s\n",
+ INT_MAX * BDRV_SECTOR_SIZE, argv[2]);
return 0;
}
} else {
- nb_sectors = 1;
+ count = BDRV_SECTOR_SIZE;
+ }
+ if (!QEMU_IS_ALIGNED(count, BDRV_SECTOR_SIZE)) {
+ printf("%" PRId64 " is not a sector-aligned value for 'count'\n",
+ count);
+ return 0;
}
+ nb_sectors = count >> BDRV_SECTOR_BITS;
remaining = nb_sectors;
sum_alloc = 0;
@@ -1811,8 +1817,8 @@ static int alloc_f(BlockBackend *blk, int argc, char **argv)
cvtstr(offset, s1, sizeof(s1));
- printf("%"PRId64"/%"PRId64" sectors allocated at offset %s\n",
- sum_alloc, nb_sectors, s1);
+ printf("%"PRId64"/%"PRId64" bytes allocated at offset %s\n",
+ sum_alloc << BDRV_SECTOR_BITS, nb_sectors << BDRV_SECTOR_BITS, s1);
return 0;
}
@@ -1822,8 +1828,8 @@ static const cmdinfo_t alloc_cmd = {
.argmin = 1,
.argmax = 2,
.cfunc = alloc_f,
- .args = "off [sectors]",
- .oneline = "checks if a sector is present in the file",
+ .args = "offset [count]",
+ .oneline = "checks if offset is allocated in the file",
};