haraldwolff/qemu-patch-raspberry4
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qemu-patch-raspberry4/block
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Eric Farman 482652502e block: Fix target variable of BLKSECTGET ioctl 
Commit 6f6071745b ("raw-posix: Fetch max sectors for host block device")
introduced a routine to call the kernel BLKSECTGET ioctl, which stores the
result back to user space.  However, the size of the data returned depends
on the routine handling the ioctl.  The (compat_)blkdev_ioctl returns a
short, while sg_ioctl returns an int.  Thus, on big-endian systems, we can
find ourselves accidentally shifting the result to a much larger value.
(On s390x, a short is 16 bits while an int is 32 bits.)

Also, the two ioctl handlers return values in different scales (block
returns sectors, while sg returns bytes), so some tweaking of the outputs
is required such that hdev_get_max_transfer_length returns a value in a
consistent set of units.

Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com>
Message-Id: <20170120162527.66075-3-farman@linux.vnet.ibm.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-01-27 18:07:31 +01:00
..
accounting.c block: Clean up includes 2016-01-20 13:36:23 +01:00
archipelago.c block: use aio_bh_schedule_oneshot 2016-10-07 13:34:07 +02:00
backup.c blockjob: refactor backup_start as backup_job_create 2016-11-14 22:47:34 -05:00
blkdebug.c blkdebug: Implement bdrv_co_preadv/pwritev/flush 2017-01-09 13:30:52 +01:00
blkreplay.c replay: allow replay stopping and restarting 2016-09-27 11:57:30 +02:00
blkverify.c blkverify: Implement bdrv_co_preadv/pwritev/flush 2017-01-09 13:30:52 +01:00
block-backend.c block-backend: Always notify on blk_eject 2016-11-14 11:15:54 -05:00
bochs.c block: Convert bdrv_co_preadv/pwritev to BdrvChild 2016-07-05 16:46:27 +02:00
cloop.c block: Convert bdrv_pread(v) to BdrvChild 2016-07-05 16:46:27 +02:00
commit.c blockjob: add block_job_start 2016-11-14 22:47:34 -05:00
crypto.c crypto: make PBKDF iterations configurable for LUKS format 2016-09-19 16:30:45 +01:00
curl.c aio: add AioPollFn and io_poll() interface 2017-01-03 16:38:48 +00:00
dirty-bitmap.c block: More operations for meta dirty bitmap 2016-10-24 17:56:07 +02:00
dmg-bz2.c dmg: Move libbz2 code to dmg-bz2.so 2016-10-07 14:14:06 +02:00
dmg.c dmg: Move libbz2 code to dmg-bz2.so 2016-10-07 14:14:06 +02:00
dmg.h dmg: Move libbz2 code to dmg-bz2.so 2016-10-07 14:14:06 +02:00
file-posix.c block: Fix target variable of BLKSECTGET ioctl 2017-01-27 18:07:31 +01:00
file-win32.c block: Rename raw-{posix,win32} to file-*.c 2017-01-09 13:30:53 +01:00
gluster.c block: Rename raw-{posix,win32} to file-*.c 2017-01-09 13:30:53 +01:00
io.c block: get rid of bdrv_io_unplugged_begin/end 2017-01-16 13:25:17 +00:00
iscsi.c block/iscsi: avoid data corruption with cache=writeback 2017-01-27 18:07:31 +01:00
linux-aio.c linux-aio: poll ring for completions 2017-01-03 16:38:48 +00:00
Makefile.objs block: Rename raw-{posix,win32} to file-*.c 2017-01-09 13:30:53 +01:00
mirror.c mirror: do not flush every time the disks are synced 2016-11-14 22:49:26 -05:00
nbd-client.c aio: add AioPollFn and io_poll() interface 2017-01-03 16:38:48 +00:00
nbd-client.h nbd: Implement NBD_CMD_WRITE_ZEROES on client 2016-11-02 09:28:56 +01:00
nbd.c block/nbd: Fix the leaked visitor 2016-11-11 15:54:55 +01:00
nfs.c aio: add AioPollFn and io_poll() interface 2017-01-03 16:38:48 +00:00
null.c block: use aio_bh_schedule_oneshot 2016-10-07 13:34:07 +02:00
parallels.c block/parallels: check new image size 2016-08-05 09:59:06 +01:00
qapi.c qapi: rename QmpOutputVisitor to QObjectOutputVisitor 2016-10-25 16:25:54 +02:00
qcow.c migration: disallow migrate_add_blocker during migration 2017-01-24 18:00:30 +00:00
qcow2-cache.c qcow2: Remove stale comment 2016-11-25 13:51:30 +01:00
qcow2-cluster.c qcow2: Support BDRV_REQ_MAY_UNMAP 2016-10-24 17:54:03 +02:00
qcow2-refcount.c block: Convert bdrv_discard() to byte-based 2016-07-20 14:11:55 +01:00
qcow2-snapshot.c block: Convert bdrv_pwrite(v/_sync) to BdrvChild 2016-07-05 16:46:27 +02:00
qcow2.c qcow2: Don't strand clusters near 2G intervals during commit 2016-12-06 15:37:02 +01:00
qcow2.h qcow2: Remove stale FIXME comment 2016-11-11 15:54:55 +01:00
qed-check.c qed: Use DIV_ROUND_UP 2016-06-07 18:19:24 +03:00
qed-cluster.c block: Clean up includes 2016-01-20 13:36:23 +01:00
qed-gencb.c block: Clean up includes 2016-01-20 13:36:23 +01:00
qed-l2-cache.c block: Clean up includes 2016-01-20 13:36:23 +01:00
qed-table.c block: introduce BDRV_POLL_WHILE 2016-10-28 21:50:18 +08:00
qed.c qed: Implement .bdrv_drain 2016-10-28 21:50:18 +08:00
qed.h block: use aio_bh_schedule_oneshot 2016-10-07 13:34:07 +02:00
quorum.c quorum: Clean up quorum_aio_get() 2017-01-09 13:30:52 +01:00
raw-format.c block: Rename raw_bsd to raw-format.c 2017-01-09 13:30:52 +01:00
rbd.c rbd: make the code more readable 2016-11-01 07:55:57 -04:00
replication.c blockjob: refactor backup_start as backup_job_create 2016-11-14 22:47:34 -05:00
sheepdog.c aio: add AioPollFn and io_poll() interface 2017-01-03 16:38:48 +00:00
snapshot.c error: Remove NULL checks on error_propagate() calls 2016-06-20 16:38:13 +02:00
ssh.c aio: add AioPollFn and io_poll() interface 2017-01-03 16:38:48 +00:00
stream.c blockjob: add block_job_start 2016-11-14 22:47:34 -05:00
throttle-groups.c throttle: Correct access to wrong BlockBackendPublic structures 2016-10-24 17:54:03 +02:00
trace-events block: Rename raw-{posix,win32} to file-*.c 2017-01-09 13:30:53 +01:00
vdi.c migration: disallow migrate_add_blocker during migration 2017-01-24 18:00:30 +00:00
vhdx-endian.c vhdx: Use QEMU UUID API 2016-09-23 11:42:52 +08:00
vhdx-log.c block: Convert bdrv_pwrite(v/_sync) to BdrvChild 2016-07-05 16:46:27 +02:00
vhdx.c migration: disallow migrate_add_blocker during migration 2017-01-24 18:00:30 +00:00
vhdx.h block: vhdx - update PAYLOAD_BLOCK_UNMAPPED value to match 1.00 spec 2014-12-12 15:42:22 +00:00
vmdk.c migration: disallow migrate_add_blocker during migration 2017-01-24 18:00:30 +00:00
vpc.c migration: disallow migrate_add_blocker during migration 2017-01-24 18:00:30 +00:00
vvfat.c migration: disallow migrate_add_blocker during migration 2017-01-24 18:00:30 +00:00
win32-aio.c aio: add AioPollFn and io_poll() interface 2017-01-03 16:38:48 +00:00
write-threshold.c block: use bdrv_add_before_write_notifier 2016-10-07 13:34:07 +02:00