search for: fua_emul

...+ PyModule_AddIntConstant (m, "FLAG_REQ_ONE", NBDKIT_FLAG_REQ_ONE); > + PyModule_AddIntConstant (m, "FLAG_FAST_ZERO", NBDKIT_FLAG_FAST_ZERO); > + > + PyModule_AddIntConstant (m, "FUA_NONE", NBDKIT_FUA_NONE); > + PyModule_AddIntConstant (m, "FUA_EMULATE", NBDKIT_FUA_EMULATE); > + PyModule_AddIntConstant (m, "FUA_NATIVE", NBDKIT_FUA_NATIVE); > + > + PyModule_AddIntConstant (m, "CACHE_NONE", NBDKIT_CACHE_NONE); > + PyModule_AddIntConstant (m, "CACHE_EMULATE", NBDKIT_CACHE_EMULATE); &gt...

...G_REQ_ONE", NBDKIT_FLAG_REQ_ONE); > > > + PyModule_AddIntConstant (m, "FLAG_FAST_ZERO", NBDKIT_FLAG_FAST_ZERO); > > > + > > > + PyModule_AddIntConstant (m, "FUA_NONE", NBDKIT_FUA_NONE); > > > + PyModule_AddIntConstant (m, "FUA_EMULATE", NBDKIT_FUA_EMULATE); > > > + PyModule_AddIntConstant (m, "FUA_NATIVE", NBDKIT_FUA_NATIVE); > > > + > > > + PyModule_AddIntConstant (m, "CACHE_NONE", NBDKIT_CACHE_NONE); > > > + PyModule_AddIntConstant (m, "CACHE_EM...

...NBDKIT_FLAG_FUA); + PyModule_AddIntConstant (m, "FLAG_REQ_ONE", NBDKIT_FLAG_REQ_ONE); + PyModule_AddIntConstant (m, "FLAG_FAST_ZERO", NBDKIT_FLAG_FAST_ZERO); + + PyModule_AddIntConstant (m, "FUA_NONE", NBDKIT_FUA_NONE); + PyModule_AddIntConstant (m, "FUA_EMULATE", NBDKIT_FUA_EMULATE); + PyModule_AddIntConstant (m, "FUA_NATIVE", NBDKIT_FUA_NATIVE); + + PyModule_AddIntConstant (m, "CACHE_NONE", NBDKIT_CACHE_NONE); + PyModule_AddIntConstant (m, "CACHE_EMULATE", NBDKIT_CACHE_EMULATE); + PyModule_AddIntConst...

...nstant (m, "FLAG_REQ_ONE", NBDKIT_FLAG_REQ_ONE); > > + PyModule_AddIntConstant (m, "FLAG_FAST_ZERO", NBDKIT_FLAG_FAST_ZERO); > > + > > + PyModule_AddIntConstant (m, "FUA_NONE", NBDKIT_FUA_NONE); > > + PyModule_AddIntConstant (m, "FUA_EMULATE", NBDKIT_FUA_EMULATE); > > + PyModule_AddIntConstant (m, "FUA_NATIVE", NBDKIT_FUA_NATIVE); > > + > > + PyModule_AddIntConstant (m, "CACHE_NONE", NBDKIT_CACHE_NONE); > > + PyModule_AddIntConstant (m, "CACHE_EMULATE", NBDKIT...

On Wed, Apr 11, 2018 at 12:03:41AM -0500, Eric Blake wrote: > +=item C<can_fua> > + > +(Optional) > + > + def can_fua(h): > + # return a boolean > + > +Unlike the C counterpart, the Python callback does not need a > +tri-state return value, because Python introspection is sufficient to > +learn whether callbacks support FUA. Thus, this function only returns

v1: https://www.redhat.com/archives/libguestfs/2019-November/msg00153.html v2: - Fix implementation of can_cache. - Add implementation of can_fua. - Add a very thorough test suite which tests every command + flag combination.

v3 was here: https://www.redhat.com/archives/libguestfs/2019-November/msg00209.html In v4: - Rebase on top of current master. Includes various fixes and updates required because of Nir's patches that went into master. - Fix api_version() -> API_VERSION in patch 2 noted previously on the mailing list. Rich.

v2 was here: https://www.redhat.com/archives/libguestfs/2019-November/msg00163.html I pushed patch 1 (with spelling fix), patch 4 and patch 5 since those were previously ACKed on the list. Differences in v3: - Add error checking to PyModule_AddIntConstant. - Use API_VERSION constant instead of function. - Add max API version supported to --dump-plugin output. - Print API_VERSION selected by

...n_zero', False) + +def can_fast_zero(h): + return cfg.get ('can_fast_zero', False) + +def can_fua(h): + fua = cfg.get ('can_fua', "none") + if fua == "none": + return nbdkit.FUA_NONE + elif fua == "emulate": + return nbdkit.FUA_EMULATE + elif fua == "native": + return nbdkit.FUA_NATIVE + +def can_cache(h): + cache = cfg.get ('can_cache', "none") + if cache == "none": + return nbdkit.CACHE_NONE + elif cache == "emulate": + return nbdkit.CACHE_EMULA...

...(h): > + return cfg.get ('can_fast_zero', False) > + > +def can_fua(h): > + fua = cfg.get ('can_fua', "none") > + if fua == "none": > + return nbdkit.FUA_NONE > + elif fua == "emulate": > + return nbdkit.FUA_EMULATE > + elif fua == "native": > + return nbdkit.FUA_NATIVE > + > +def can_cache(h): > + cache = cfg.get ('can_cache', "none") > + if cache == "none": > + return nbdkit.CACHE_NONE > + elif cache == "emulate&q...

...her it knows nbdkit will be emulating FUA with a flush, by comparing the log filter output on top of different fua filter modes: - nbdkit --filter=blocksize --filter=log --filter=fua file file=disk.img \ + nbdkit --filter=blocksize --filter=log --filter=fua file disk.img \ maxlen=4k logfile=fua_emulated fuamode=emulate - nbdkit --filter=blocksize --filter=log --filter=fua file file=disk.img \ + nbdkit --filter=blocksize --filter=log --filter=fua file disk.img \ maxlen=4k logfile=fua_native fuamode=native Serve the file F<disk.img> in write-through mode, where all writes from the...

...her it knows nbdkit will be emulating FUA with a flush, by comparing the log filter output on top of different fua filter modes: - nbdkit --filter=blocksize --filter=log --filter=fua file file=disk.img \ + nbdkit --filter=blocksize --filter=log --filter=fua file disk.img \ maxlen=4k logfile=fua_emulated fuamode=emulate - nbdkit --filter=blocksize --filter=log --filter=fua file file=disk.img \ + nbdkit --filter=blocksize --filter=log --filter=fua file disk.img \ maxlen=4k logfile=fua_native fuamode=native Serve the file F<disk.img> in write-through mode, where all writes from the...

And fill out most of the missing bits of the API. Rich.

Remove the need to use file= (and in future other) parameters for many plugins. eg. Using the file plugin becomes: nbdkit file disk.img Rich.

v1 was here: https://www.redhat.com/archives/libguestfs/2018-September/msg00024.html v2: - As discussed in the patch review, tighten up the characters permitted in keys. - Update documentation to note that relative paths can be made safe by prefixing with ./ and absolute paths do not need any extra steps. - I pushed patch 1/6 from the v1 series since it was just a trivial

v1: https://www.redhat.com/archives/libguestfs/2018-September/msg00024.html v2: https://www.redhat.com/archives/libguestfs/2018-September/msg00034.html v3: - Fixed is_config_key zero length test. - Fixed is_config_key so it uses strspn and is not O(n^2). - Changed >= 1.7 to >= 1.8 in the documentation. Rich.

After more than a month since v2 [1], I've finally got my FUA support series polished. This is all of my outstanding patches, even though some of them were originally posted in separate threads from the original FUA post [2], [3] [1] https://www.redhat.com/archives/libguestfs/2018-January/msg00113.html [2] https://www.redhat.com/archives/libguestfs/2018-January/msg00219.html [3]