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block: change variable names in BlockDriverState

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Change the 'int count' parameter in *pwrite_zeros, *pdiscard related
functions (and some others) to 'int bytes', as they both refer to bytes.
This helps with code legibility.

Signed-off-by: Manos Pitsidianakis <el13635@mail.ntua.gr>
Message-id: 20170609101808.13506-1-el13635@mail.ntua.gr
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Manos Pitsidianakis 2017-06-09 13:18:08 +03:00 • committed by Max Reitz
parent c5f1ad429c
commit f5a5ca7969
18 changed files with 161 additions and 161 deletions
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46
qemu-io-cmds.c
View file

@ -451,13 +451,13 @@ fail:
}
static int do_pread(BlockBackend *blk, char *buf, int64_t offset,
int64_t count, int64_t *total)
int64_t bytes, int64_t *total)
{
if (count > INT_MAX) {
if (bytes > INT_MAX) {
return -ERANGE;
}
*total = blk_pread(blk, offset, (uint8_t *)buf, count);
*total = blk_pread(blk, offset, (uint8_t *)buf, bytes);
if (*total < 0) {
return *total;
}
@ -465,13 +465,13 @@ static int do_pread(BlockBackend *blk, char *buf, int64_t offset,
}
static int do_pwrite(BlockBackend *blk, char *buf, int64_t offset,
int64_t count, int flags, int64_t *total)
int64_t bytes, int flags, int64_t *total)
{
if (count > INT_MAX) {
if (bytes > INT_MAX) {
return -ERANGE;
}
*total = blk_pwrite(blk, offset, (uint8_t *)buf, count, flags);
*total = blk_pwrite(blk, offset, (uint8_t *)buf, bytes, flags);
if (*total < 0) {
return *total;
}
@ -481,7 +481,7 @@ static int do_pwrite(BlockBackend *blk, char *buf, int64_t offset,
typedef struct {
BlockBackend *blk;
int64_t offset;
int64_t count;
int64_t bytes;
int64_t *total;
int flags;
int ret;
@ -492,7 +492,7 @@ static void coroutine_fn co_pwrite_zeroes_entry(void *opaque)
{
CoWriteZeroes *data = opaque;
data->ret = blk_co_pwrite_zeroes(data->blk, data->offset, data->count,
data->ret = blk_co_pwrite_zeroes(data->blk, data->offset, data->bytes,
data->flags);
data->done = true;
if (data->ret < 0) {
@ -500,23 +500,23 @@ static void coroutine_fn co_pwrite_zeroes_entry(void *opaque)
return;
}
*data->total = data->count;
*data->total = data->bytes;
}
static int do_co_pwrite_zeroes(BlockBackend *blk, int64_t offset,
int64_t count, int flags, int64_t *total)
int64_t bytes, int flags, int64_t *total)
{
Coroutine *co;
CoWriteZeroes data = {
.blk = blk,
.offset = offset,
.count = count,
.bytes = bytes,
.total = total,
.flags = flags,
.done = false,
};
if (count > INT_MAX) {
if (bytes > INT_MAX) {
return -ERANGE;
}
@ -533,19 +533,19 @@ static int do_co_pwrite_zeroes(BlockBackend *blk, int64_t offset,
}
static int do_write_compressed(BlockBackend *blk, char *buf, int64_t offset,
int64_t count, int64_t *total)
int64_t bytes, int64_t *total)
{
int ret;
if (count >> 9 > BDRV_REQUEST_MAX_SECTORS) {
if (bytes >> 9 > BDRV_REQUEST_MAX_SECTORS) {
return -ERANGE;
}
ret = blk_pwrite_compressed(blk, offset, buf, count);
ret = blk_pwrite_compressed(blk, offset, buf, bytes);
if (ret < 0) {
return ret;
}
*total = count;
*total = bytes;
return 1;
}
@ -1701,7 +1701,7 @@ static int discard_f(BlockBackend *blk, int argc, char **argv)
struct timeval t1, t2;
bool Cflag = false, qflag = false;
int c, ret;
int64_t offset, count;
int64_t offset, bytes;
while ((c = getopt(argc, argv, "Cq")) != -1) {
switch (c) {
@ -1727,11 +1727,11 @@ static int discard_f(BlockBackend *blk, int argc, char **argv)
}
optind++;
count = cvtnum(argv[optind]);
if (count < 0) {
print_cvtnum_err(count, argv[optind]);
bytes = cvtnum(argv[optind]);
if (bytes < 0) {
print_cvtnum_err(bytes, argv[optind]);
return 0;
} else if (count >> BDRV_SECTOR_BITS > BDRV_REQUEST_MAX_SECTORS) {
} else if (bytes >> BDRV_SECTOR_BITS > BDRV_REQUEST_MAX_SECTORS) {
printf("length cannot exceed %"PRIu64", given %s\n",
(uint64_t)BDRV_REQUEST_MAX_SECTORS << BDRV_SECTOR_BITS,
argv[optind]);
@ -1739,7 +1739,7 @@ static int discard_f(BlockBackend *blk, int argc, char **argv)
}
gettimeofday(&t1, NULL);
ret = blk_pdiscard(blk, offset, count);
ret = blk_pdiscard(blk, offset, bytes);
gettimeofday(&t2, NULL);
if (ret < 0) {
@ -1750,7 +1750,7 @@ static int discard_f(BlockBackend *blk, int argc, char **argv)
/* Finally, report back -- -C gives a parsable format */
if (!qflag) {
t2 = tsub(t2, t1);
print_report("discard", &t2, offset, count, count, 1, Cflag);
print_report("discard", &t2, offset, bytes, bytes, 1, Cflag);
}
out: