- 15 3月, 2013 1 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> Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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- 01 2月, 2013 1 次提交
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由 Kevin Wolf 提交于
Return -errno instead of -1 on errors. While touching the code, fix a memory leak. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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- 26 1月, 2013 1 次提交
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由 Stefan Weil 提交于
This improves error reports for bochs, cow, qcow, qcow2, qed and vmdk when a file with the wrong format is selected. Signed-off-by: NStefan Weil <sw@weilnetz.de> Reviewed-by: NEric Blake <eblake@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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- 21 10月, 2011 2 次提交
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由 Paolo Bonzini 提交于
This does the first part of the conversion to coroutines, by wrapping bdrv_read implementations to take the mutex. Drivers that implement bdrv_read rather than bdrv_co_readv can then benefit from asynchronous operation (at least if the underlying protocol supports it, which is not the case for raw-win32), even though they still operate with a bounce buffer. raw-win32 does not need the lock, because it cannot yield. nbd also doesn't probably, but better be safe. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
The big conversion of bdrv_read/write to coroutines caused the two homonymous callbacks in BlockDriver to become reentrant. It goes like this: 1) bdrv_read is now called in a coroutine, and calls bdrv_read or bdrv_pread. 2) the nested bdrv_read goes through the fast path in bdrv_rw_co_entry; 3) in the common case when the protocol is file, bdrv_co_do_readv calls bdrv_co_readv_em (and from here goes to bdrv_co_io_em), which yields until the AIO operation is complete; 4) if bdrv_read had been called from a bottom half, the main loop is free to iterate again: a device model or another bottom half can then come and call bdrv_read again. This applies to all four of read/write/flush/discard. It would also apply to is_allocated, but it is not used from within coroutines: besides qemu-img.c and qemu-io.c, which operate synchronously, the only user is the monitor. Copy-on-read will introduce a use in the block layer, and will require converting it. The solution is "simply" to convert all drivers to coroutines! We just need to add a CoMutex that is taken around affected operations. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.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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- 17 5月, 2010 2 次提交
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由 Christoph Hellwig 提交于
Use bdrv_pwrite to access the backing device instead of pread, and convert the driver to implementing the bdrv_open method which gives it an already opened BlockDriverState for the underlying device. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Christoph Hellwig 提交于
Use pread instead of lseek + read in preparation of using the qemu block API. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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- 03 5月, 2010 1 次提交
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由 Kevin Wolf 提交于
Format drivers shouldn't need to bother with things like file names, but rather just get an open BlockDriverState for the underlying protocol. This patch introduces this behaviour for bdrv_open implementation. For protocols which need to access the filename to open their file/device/connection/... a new callback bdrv_file_open is introduced which doesn't get an underlying file opened. For now, also some of the more obscure formats use bdrv_file_open because they open() the file themselves instead of using the block.c functions. They need to be fixed in later patches. Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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- 27 1月, 2010 1 次提交
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由 Naphtali Sprei 提交于
Signed-off-by: NNaphtali Sprei <nsprei@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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- 26 12月, 2009 2 次提交
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由 Blue Swirl 提交于
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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由 Kirill A. Shutemov 提交于
CC block/bochs.o cc1: warnings being treated as errors block/bochs.c: In function 'seek_to_sector': block/bochs.c:202: error: ignoring return value of 'read', declared with attribute warn_unused_result make: *** [block/bochs.o] Error 1 Signed-off-by: NKirill A. Shutemov <kirill@shutemov.name> Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 15 5月, 2009 2 次提交
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由 Anthony Liguori 提交于
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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由 Anthony Liguori 提交于
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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- 08 3月, 2009 1 次提交
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由 aurel32 提交于
Consistently use the C99 named initializer format for the BlockDriver methods to make the method table more readable and more easily extensible. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6768 c046a42c-6fe2-441c-8c8c-71466251a162
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- 06 2月, 2009 1 次提交
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由 aliguori 提交于
Signed-off-by: NAvi Kivity <avi@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6527 c046a42c-6fe2-441c-8c8c-71466251a162
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- 11 11月, 2007 1 次提交
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由 pbrook 提交于
Remove QEMU_TOOL. Replace with QEMU_IMG and NEED_CPU_H. Avoid linking qemu-img against whole system emulatior. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3578 c046a42c-6fe2-441c-8c8c-71466251a162
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- 17 9月, 2007 2 次提交
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由 ths 提交于
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3177 c046a42c-6fe2-441c-8c8c-71466251a162
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由 ths 提交于
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3173 c046a42c-6fe2-441c-8c8c-71466251a162
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- 06 1月, 2007 1 次提交
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由 ths 提交于
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2296 c046a42c-6fe2-441c-8c8c-71466251a162
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- 02 8月, 2006 1 次提交
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由 bellard 提交于
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2075 c046a42c-6fe2-441c-8c8c-71466251a162
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- 27 4月, 2005 1 次提交
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由 bellard 提交于
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1409 c046a42c-6fe2-441c-8c8c-71466251a162
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