- 22 2月, 2014 40 次提交
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由 Benoît Canet 提交于
Writes are mirrored num_children times on num_children devices. Signed-off-by: NBenoit Canet <benoit@irqsave.net> Reviewed-by: NMax Reitz <mreitz@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Benoît Canet 提交于
Create the structure holding the quorum settings and write the minimal block driver instanciation boilerplate. Signed-off-by: NBenoit Canet <benoit@irqsave.net> Reviewed-by: NMax Reitz <mreitz@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Benoît Canet 提交于
Quorum is a block filter mirroring writes to num_children children. For reads quorum reads each children and does a vote. If more than vote_threshold versions are identical the quorum is reached and this winning version is returned to the guest. So quorum prevents bit corruption. For high availability purpose minority errors are reported via QMP but the guest does not see them. This patch creates the driver C source file and introduces the structures that will be used in asynchronous reads and writes. Signed-off-by: NBenoit Canet <benoit@irqsave.net> Reviewed-by: NMax Reitz <mreitz@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Max Reitz 提交于
qdict_array_split() should terminate if it encounters both an entry with a key of "%u" and entries with keys prefixed "%u." for the same index. This patch adds a test for this case. Signed-off-by: NMax Reitz <mreitz@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Max Reitz 提交于
Test the new functionality of qdict_array_split(), that is, splitting off single objects. Signed-off-by: NMax Reitz <mreitz@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Max Reitz 提交于
Currently, qdict_array_split() only splits off entries with a key prefix of "%u.", packing them into a new QDict. This patch makes it support entries with the plain key "%u" as well, directly putting them into the new QList without creating a QDict. If there is both an entry with a key of "%u" and other entries with keys prefixed "%u." (for the same index), the function simply terminates. To do this, this patch also adds a static function which tests whether a given QDict contains any keys with the given prefix. This is used to test whether entries with a key prefixed "%u." do exist in the source QDict without modifying it. Signed-off-by: NMax Reitz <mreitz@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Max Reitz 提交于
In config_parse_qdict_section(), the QList returned by qdict_array_split() is assumed to only contain QDicts. Currently, this is true but it may (and will) change in the future. Therefore, check whether the assumption actually holds. Signed-off-by: NMax Reitz <mreitz@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Kevin Wolf 提交于
Signed-off-by: NKevin Wolf <kwolf@redhat.com> Reviewed-by: NJeff Cody <jcody@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com>
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由 Kevin Wolf 提交于
This patch allows using 'qemu-img $subcmd -o help' for the create, convert and amend subcommands, without specifying the previously required filename arguments. Note that it's still allowed and meaningful to specify a filename: An invocation like 'qemu-img create -o help sheepdog:foo' will also display options that are provided by the Sheepdog driver. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Reviewed-by: NJeff Cody <jcody@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com>
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由 Kevin Wolf 提交于
Instead of ignoring all option values but the last one, multiple -o options now have the same meaning as having a single option with all settings in the order of their respective -o options. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Reviewed-by: NJeff Cody <jcody@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com>
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由 Kevin Wolf 提交于
Instead of ignoring all option values but the last one, multiple -o options now have the same meaning as having a single option with all settings in the order of their respective -o options. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Reviewed-by: NJeff Cody <jcody@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com>
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由 Kevin Wolf 提交于
If you specified multiple -o options for qemu-img create, it would silently ignore all but the last one. This patch fixes the problem. Now multiple -o options has the same meaning as having a single option with all settings in the order of their respective -o options. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Reviewed-by: NJeff Cody <jcody@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com>
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由 Kevin Wolf 提交于
has_help_option() checks if any help option ('help' or '?') occurs anywhere in an option string, so that things like 'cluster_size=4k,help' are recognised. is_valid_option_list() ensures that the option list doesn't have options with leading commas or trailing unescaped commas. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Reviewed-by: NJeff Cody <jcody@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com>
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由 Paolo Bonzini 提交于
Instead of just putting it in debugging output, we can now put the value in an Error. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NFam Zheng <famz@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
Returning "Wrong medium type" for an image that does not have a valid header is a bit weird. Improve the error by mentioning what format was trying to open it. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NFam Zheng <famz@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
Now that we can return the "right" errors, use the Error** parameter to pass them back instead of just printing them. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NFam Zheng <famz@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
This prepares for propagating errors from vmdk_open_sparse and vmdk_open_desc_file up to the caller of vmdk_open. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NFam Zheng <famz@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
Currently, we just try reading a VMDK file as both image and descriptor. This makes it hard to choose which of the two attempts gave the best error. We'll decide in advance if the file looks like an image or a descriptor, and this patch is the first step to that end. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NFam Zheng <famz@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NFam Zheng <famz@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
Before: $ ./qemu-io-old qemu-io-old> open -r -o driver=vvfat,fat-type=24,dir=i386-softmmu Valid FAT types are only 12, 16 and 32 qemu-io-old: can't open device (null): Could not open image: Invalid argument After: $ ./qemu-io qemu-io> open -r -o driver=vvfat,fat-type=24,dir=i386-softmmu qemu-io: can't open device (null): Valid FAT types are only 12, 16 and 32 Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NFam Zheng <famz@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NFam Zheng <famz@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NFam Zheng <famz@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NFam Zheng <famz@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NFam Zheng <famz@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NFam Zheng <famz@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NFam Zheng <famz@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
Currently, "gluster:///volname/img" and (using file. options) "file.driver=gluster,file.filename=foo" will segfault. Also, "//host/volname/img" will be rejected, but it is a valid URL that should be accepted just fine with "file.driver=gluster". Accept all of these, by inferring missing transport and host as TCP and localhost respectively. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NFam Zheng <famz@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
Before: $ ./qemu-io-old qemu-io-old> open -r -o file.driver=iscsi,file.filename=foo Failed to parse URL : foo qemu-io-old: can't open device (null): Could not open 'foo': Invalid argument After: $ ./qemu-io qemu-io> open -r -o file.driver=iscsi,file.filename=foo qemu-io: can't open device (null): Failed to parse URL : foo Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NFam Zheng <famz@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NFam Zheng <famz@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
qemu-nbd is one of the few valid users of qerror_report_err. Move the error-reporting socket wrappers there. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NFam Zheng <famz@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NFam Zheng <famz@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
Before: $ ./qemu-io-old qemu-io-old> open -r -o file.driver=nbd one of path and host must be specified. qemu-io-old: can't open device (null): Could not open image: Invalid argument $ ./qemu-io-old qemu-io-old> open -r -o file.driver=nbd,file.host=foo,file.path=bar path and host may not be used at the same time. qemu-io-old: can't open device (null): Could not open image: Invalid argument After: $ ./qemu-io qemu-io> open -r -o file.driver=nbd qemu-io: can't open device (null): one of path and host must be specified. $ ./qemu-io qemu-io> open -r -o file.driver=nbd,file.host=foo,file.path=bar qemu-io: can't open device (null): path and host may not be used at the same time. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NFam Zheng <famz@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
Before: $ qemu-io-old qemu-io-old> open -r -o file.driver=nbd qemu-io-old: can't open device (null): Could not open image: Invalid argument $ ./qemu-io-old qemu-io-old> open -r -o file.driver=nbd,file.host=foo,file.path=bar path and host may not be used at the same time. qemu-io-old: can't open device (null): Could not open image: Invalid argument After: $ ./qemu-io qemu-io> open -r -o file.driver=nbd one of path and host must be specified. qemu-io: can't open device (null): Could not open image: Invalid argument $ ./qemu-io qemu-io> open -r -o file.driver=nbd,file.host=foo,file.path=bar path and host may not be used at the same time. qemu-io: can't open device (null): Could not open image: Invalid argument Next patch will fix the error propagation. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NFam Zheng <famz@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Max Reitz 提交于
This option is now unnecessary since specifying BDRV_O_PROTOCOL as flag will do exactly the same. Signed-off-by: NMax Reitz <mreitz@redhat.com> Reviewed-by: NBenoit Canet <benoit@irqsave.net> Reviewed-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Max Reitz 提交于
The fail and success paths of bdrv_file_open() may be further shortened by reusing code already existent in bdrv_open(). This includes bdrv_file_open() not taking the reference to options which allows the removal of QDECREF(options) in that function. Signed-off-by: NMax Reitz <mreitz@redhat.com> Reviewed-by: NKevin Wolf <kwolf@redhat.com> Reviewed-by: NBenoit Canet <benoit@irqsave.net> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Max Reitz 提交于
The fail paths of bdrv_file_open() and bdrv_open() naturally exhibit similarities, thus it is possible to reuse the one from bdrv_open() and shorten the one in bdrv_file_open() accordingly. Also, setting bs->options in bdrv_file_open() is not necessary if it is already done in bdrv_open(). Signed-off-by: NMax Reitz <mreitz@redhat.com> Reviewed-by: NBenoit Canet <benoit@irqsave.net> Reviewed-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Max Reitz 提交于
Change bdrv_file_open() to take a simple pointer to an already existing BDS instead of an indirect one. The BDS will be created in bdrv_open() if necessary. Signed-off-by: NMax Reitz <mreitz@redhat.com> Reviewed-by: NBenoit Canet <benoit@irqsave.net> Reviewed-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Max Reitz 提交于
Remove the reference parameter and the related handling code from bdrv_file_open(), since it exists in bdrv_open() now as well. Signed-off-by: NMax Reitz <mreitz@redhat.com> Reviewed-by: NBenoit Canet <benoit@irqsave.net> Reviewed-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Max Reitz 提交于
Add the bdrv_open() option BDRV_O_PROTOCOL which results in passing the call to bdrv_file_open(). Additionally, make bdrv_file_open() static and therefore bdrv_open() the only way to call it. Consequently, all existing calls to bdrv_file_open() have to be adjusted to use bdrv_open() with the BDRV_O_PROTOCOL flag instead. Signed-off-by: NMax Reitz <mreitz@redhat.com> Reviewed-by: NKevin Wolf <kwolf@redhat.com> Reviewed-by: NBenoit Canet <benoit@irqsave.net> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Max Reitz 提交于
Allow bdrv_open() to handle references to existing block devices just as bdrv_file_open() is already capable of. Signed-off-by: NMax Reitz <mreitz@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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