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qemu-iotests: Fix regression in 136 on aio_read invalid 

Commit 093ea232 removed the ability for aio_read and aio_write
to artificially inflate the invalid statistics counters for
block devices, since it no longer flags unaligned offset or
length.  Add 'aio_read -i' and 'aio_write -i' to restore
the ability, and update test 136 to use it.

Reported-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-id: 1463416983-28318-4-git-send-email-eblake@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
stable-2.7
Eric Blake 2016-05-16 10:43:03 -06:00 committed by Max Reitz
parent 9e28bb26c2
commit 37546ff28f
2 changed files with 20 additions and 15 deletions
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20
qemu-io-cmds.c
View File

@ -1274,6 +1274,7 @@ static void aio_read_help(void)
" used to ensure all outstanding aio requests have been completed.\n"
" -C, -- report statistics in a machine parsable format\n"
" -P, -- use a pattern to verify read data\n"
" -i, -- treat request as invalid, for exercising stats\n"
" -v, -- dump buffer to standard output\n"
" -q, -- quiet mode, do not show I/O statistics\n"
"\n");
@ -1286,7 +1287,7 @@ static const cmdinfo_t aio_read_cmd = {
.cfunc = aio_read_f,
.argmin = 2,
.argmax = -1,
.args = "[-Cqv] [-P pattern] off len [len..]",
.args = "[-Ciqv] [-P pattern] off len [len..]",
.oneline = "asynchronously reads a number of bytes",
.help = aio_read_help,
};
@ -1297,7 +1298,7 @@ static int aio_read_f(BlockBackend *blk, int argc, char **argv)
struct aio_ctx *ctx = g_new0(struct aio_ctx, 1);
ctx->blk = blk;
while ((c = getopt(argc, argv, "CP:qv")) != -1) {
while ((c = getopt(argc, argv, "CP:iqv")) != -1) {
switch (c) {
case 'C':
ctx->Cflag = true;
@ -1310,6 +1311,11 @@ static int aio_read_f(BlockBackend *blk, int argc, char **argv)
return 0;
}
break;
case 'i':
printf("injecting invalid read request\n");
block_acct_invalid(blk_get_stats(blk), BLOCK_ACCT_READ);
g_free(ctx);
return 0;
case 'q':
ctx->qflag = true;
break;
@ -1367,6 +1373,7 @@ static void aio_write_help(void)
" -P, -- use different pattern to fill file\n"
" -C, -- report statistics in a machine parsable format\n"
" -f, -- use Force Unit Access semantics\n"
" -i, -- treat request as invalid, for exercising stats\n"
" -q, -- quiet mode, do not show I/O statistics\n"
" -u, -- with -z, allow unmapping\n"
" -z, -- write zeroes using blk_aio_write_zeroes\n"
@ -1380,7 +1387,7 @@ static const cmdinfo_t aio_write_cmd = {
.cfunc = aio_write_f,
.argmin = 2,
.argmax = -1,
.args = "[-Cfquz] [-P pattern] off len [len..]",
.args = "[-Cfiquz] [-P pattern] off len [len..]",
.oneline = "asynchronously writes a number of bytes",
.help = aio_write_help,
};
@ -1393,7 +1400,7 @@ static int aio_write_f(BlockBackend *blk, int argc, char **argv)
int flags = 0;
ctx->blk = blk;
while ((c = getopt(argc, argv, "CfqP:uz")) != -1) {
while ((c = getopt(argc, argv, "CfiqP:uz")) != -1) {
switch (c) {
case 'C':
ctx->Cflag = true;
@ -1414,6 +1421,11 @@ static int aio_write_f(BlockBackend *blk, int argc, char **argv)
return 0;
}
break;
case 'i':
printf("injecting invalid write request\n");
block_acct_invalid(blk_get_stats(blk), BLOCK_ACCT_WRITE);
g_free(ctx);
return 0;
case 'z':
ctx->zflag = true;
break;

15
tests/qemu-iotests/136
View File

@ -226,18 +226,11 @@ sector = "%d"
highest_offset = wr_ops * wr_size
# Two types of invalid operations: unaligned length and unaligned offset
for i in range(invalid_rd_ops / 2):
ops.append("aio_read 0 511")
for i in range(invalid_rd_ops):
ops.append("aio_read -i 0 512")
for i in range(invalid_rd_ops / 2, invalid_rd_ops):
ops.append("aio_read 13 512")
for i in range(invalid_wr_ops / 2):
ops.append("aio_write 0 511")
for i in range(invalid_wr_ops / 2, invalid_wr_ops):
ops.append("aio_write 13 512")
for i in range(invalid_wr_ops):
ops.append("aio_write -i 0 512")
for i in range(failed_rd_ops):
ops.append("aio_read %d 512" % bad_offset)