- 06 6月, 2013 3 次提交
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由 Kevin Wolf 提交于
Signed-off-by: NKevin Wolf <kwolf@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Kevin Wolf 提交于
No reason to implement the same thing multiple times. A nice side effect is that fractional numbers like 0.5M can be used in qemu-io now. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Kevin Wolf 提交于
The original intention seems to be something with handling multiple images at once, but this has never been implemented and the only function ever registered is implemented to make everything behave like a "global" command. Just do that unconditionally now. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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- 24 5月, 2013 1 次提交
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由 Kevin Wolf 提交于
The output of the 'map' command in qemu-io used to directly resemble bdrv_is_allocated() and could contain many lines for small chunks that all have the same allocation status. After this patch, they will be coalesced into a single output line for a large chunk. As a side effect, the command gains some error handling. Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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- 23 3月, 2013 1 次提交
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由 Kevin Wolf 提交于
The new parameter is unused yet. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com>
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- 15 3月, 2013 1 次提交
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由 Kevin Wolf 提交于
It doesn't do anything yet except storing the options QDict in the BlockDriverState. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com> Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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- 23 2月, 2013 1 次提交
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由 Paolo Bonzini 提交于
It is better to present homogeneous hardware independent of the storage technology that is chosen on the host, hence we make discard a host parameter; the user can choose whether to pass it down to the image format and protocol, or to ignore it. Using DISCARD with filesystems can cause very severe fragmentation, so it is left default-off for now. This can change later when we implement the "anchor" operation for efficient management of preallocated files. There is still one choice to make: whether DISCARD has an effect on the dirty bitmap or not. I chose yes, though there is a disadvantage: if the guest is buggy and issues discards for data that is in use, there will be no way to migrate storage for that guest without downgrading the machine type to an older one. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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- 19 12月, 2012 2 次提交
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由 Paolo Bonzini 提交于
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Paolo Bonzini 提交于
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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- 12 12月, 2012 1 次提交
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由 Kevin Wolf 提交于
This makes the blkdebug suspend/resume functionality available in qemu-io. Use it like this: $ ./qemu-io blkdebug::/tmp/test.qcow2 qemu-io> break write_aio req_a qemu-io> aio_write 0 4k qemu-io> blkdebug: Suspended request 'req_a' qemu-io> resume req_a blkdebug: Resuming request 'req_a' qemu-io> wrote 4096/4096 bytes at offset 0 4 KiB, 1 ops; 0:00:30.71 (133.359788 bytes/sec and 0.0326 ops/sec) Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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- 11 12月, 2012 1 次提交
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由 Kevin Wolf 提交于
This makes it easier to create images with both compressed and uncompressed clusters for testing. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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- 15 11月, 2012 1 次提交
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由 Kevin Wolf 提交于
This is harmless as of today because I/O throttling is not used in qemu-io, however as soon as .bdrv_drain handlers will be introduced, qemu-io must be sure to call bdrv_drain_all(). Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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- 06 11月, 2012 1 次提交
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由 Paolo Bonzini 提交于
Tools were broken because they initialized the block layer while qemu_aio_context was still NULL. Reported-by: Nmalc <av1474@comtv.ru> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: Nmalc <av1474@comtv.ru>
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- 07 8月, 2012 1 次提交
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由 Stefan Hajnoczi 提交于
Avoiding data loss and corruption is the top requirement for image file formats. The qemu-io "abort" command makes it possible to simulate program crashes and does not give the image format a chance to cleanly shut down. This command is useful for data integrity test cases. Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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- 17 7月, 2012 1 次提交
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由 Kevin Wolf 提交于
Almost all callers of create_iovec() forgot to destroy the qiov when the request has completed. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Reviewed-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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- 10 5月, 2012 1 次提交
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由 Paolo Bonzini 提交于
Because sector_num is not updated, the loop would either go on forever or return garbage. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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- 19 4月, 2012 2 次提交
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由 Paolo Bonzini 提交于
This will let timers run during aio_read and aio_write commands, though not during synchronous commands. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Kevin Wolf 提交于
To be used as in 'qemu-io -t writeback test.img' Signed-off-by: NKevin Wolf <kwolf@redhat.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com>
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- 05 4月, 2012 1 次提交
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由 Stefan Hajnoczi 提交于
It can be useful to enable QEMU tracing when trying out block layer interfaces via qemu-io. Tracing can be enabled using the new -T FILE option where the given file contains a list of trace events to enable (just like the qemu --trace events=FILE option). $ echo qemu_vfree >my-events $ ./qemu-io -T my-events ... Remember to use ./configure --enable-trace-backend=BACKEND when building qemu-io. Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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- 29 2月, 2012 1 次提交
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由 Zhi Yong Wu 提交于
[root@f15 qemu]# qemu-io -c info /home/zwu/work/misc/rh6.img format name: qed cluster size: 64 KiB vm state offset: 0.000000 bytes Segmentation fault (core dumped) This reason is same as the former patch Signed-off-by: NZhi Yong Wu <wuzhy@linux.vnet.ibm.com> Reviewed-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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- 09 2月, 2012 1 次提交
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由 Stefan Hajnoczi 提交于
Extend the qemu-io write command with the -z option to call bdrv_co_write_zeroes(). Exposing the zero write interface from qemu-io allows us to write tests that exercise this new block layer interface. Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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- 27 1月, 2012 1 次提交
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由 Laszlo Ersek 提交于
Signed-off-by: NLaszlo Ersek <lersek@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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- 26 1月, 2012 1 次提交
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由 Stefan Hajnoczi 提交于
Most of the codebase as been converted to use glib memory allocation functions. There are still a few instances of malloc/calloc in the block layer and qemu-io. Replace them, especially since they do not check the strdup/malloc/calloc return value. Reported-by: NDr David Alan Gilbert <davidagilbert@uk.ibm.com> Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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- 15 12月, 2011 1 次提交
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由 Paolo Bonzini 提交于
Initially done with the following semantic patch: @ rule1 @ expression E; statement S; @@ E = ( bdrv_aio_readv | bdrv_aio_writev | bdrv_aio_flush | bdrv_aio_discard | bdrv_aio_ioctl ) (...); ( - if (E == NULL) { ... } | - if (E) { <... S ...> } ) which however missed the occurrence in block/blkverify.c (as it should have done), and left behind some unused variables. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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- 05 12月, 2011 1 次提交
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由 Stefan Hajnoczi 提交于
Many places in QEMU call qemu_aio_flush() to complete all pending asynchronous I/O. Most of these places actually want to drain all block requests but there is no block layer API to do so. This patch introduces the bdrv_drain_all() API to wait for requests across all BlockDriverStates to complete. As a bonus we perform checks after qemu_aio_wait() to ensure that requests really have finished. Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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- 02 12月, 2011 1 次提交
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由 Dong Xu Wang 提交于
Signed-off-by: NDong Xu Wang <wdongxu@linux.vnet.ibm.com> Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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- 04 11月, 2011 2 次提交
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由 Kevin Wolf 提交于
Without this fix, some qiovs can be leaked if an error occurs. Also a semicolon at the end of the command line would make the code walk beyond the end of argv. Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Kevin Wolf 提交于
Callers of create_iovec() didn't check for failure and continued with uninitialised data in error cases. This patch adds checks to each call. Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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- 29 10月, 2011 1 次提交
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由 Stefan Hajnoczi 提交于
Using bdrv_close() is not enough to free a BlockDriverState. Since we explicitly create it with bdrv_new(), use bdrv_delete() to close and delete it. Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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- 21 10月, 2011 1 次提交
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由 Alex Jia 提交于
Haven't released memory of 'ctx' before return. Signed-off-by: NAlex Jia <ajia@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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- 16 9月, 2011 1 次提交
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由 Stefan Weil 提交于
Those blanks violate the coding conventions, see scripts/checkpatch.pl. Blanks missing after colons in the changed lines were added. This patch does not try to fix tabs, long lines and other problems in the changed lines, therefore checkpatch.pl reports many violations. Signed-off-by: NStefan Weil <weil@mail.berlios.de> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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- 10 9月, 2011 1 次提交
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由 Blue Swirl 提交于
Remove an unnecessary assignment, spotted by clang analyzer: /src/qemu/qemu-io.c:995:9: warning: Value stored to 'offset' is never read offset += reqs[i].qiov->size; Acked-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 21 8月, 2011 1 次提交
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由 Anthony Liguori 提交于
qemu_malloc/qemu_free no longer exist after this commit. Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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- 18 7月, 2011 2 次提交
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由 Devin Nakamura 提交于
Fix a bug caused by lack of braces in if statement Lack of braces means that if(count & 0x1ff) is never reached Signed-off-by: NDevin Nakamura <devin122@gmail.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Devin Nakamura 提交于
Replaced tabs with spaces, 8 space indentations with 4 space indentation, and other fixes to better adhere to CODING_STYLE Signed-off-by: NDevin Nakamura <devin122@gmail.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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- 08 6月, 2011 1 次提交
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由 Christoph Hellwig 提交于
Change BDRV_O_NOCACHE to only imply bypassing the host OS file cache, but no writeback semantics. All existing callers are changed to also specify BDRV_O_CACHE_WB to give them writeback semantics. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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- 31 1月, 2011 1 次提交
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由 Kevin Wolf 提交于
qemu-io passed bytes where it's supposed to pass sectors, so discard requests were off. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Reviewed-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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- 13 1月, 2011 1 次提交
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由 Blue Swirl 提交于
Fix a memory leak, reported by cppcheck: [/src/qemu/qemu-io.c:1135]: (error) Memory leak: ctx Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 17 12月, 2010 2 次提交
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由 Kevin Wolf 提交于
Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Stefan Hajnoczi 提交于
discard [-Cq] off len -- discards a number of bytes at a specified offset discards a range of bytes from the given offset Example: 'discard 512 1k' - discards 1 kilobyte from 512 bytes into the file Discards a segment of the currently open file. -C, -- report statistics in a machine parsable format -q, -- quite mode, do not show I/O statistics Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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