search for: extent_zero

...quot;Test cache.""" self.connect ({"size": 512, "can_cache": "native"}) self.h.cache (512, 0) + + # We don't have access to the magic constants defined in the + # nbdkit module, so redefine them here. + EXTENT_HOLE = 1 + EXTENT_ZERO = 2 + + def test_extents_1 (self): + """Test extents.""" + + offset = None + entries = [] + + def f(meta_context, o, e, err): + nonlocal offset, entries + if meta_context != "base:allocation": return +...

...> self.connect ({"size": 512, "can_cache": "native"}) > self.h.cache (512, 0) > + > + # We don't have access to the magic constants defined in the > + # nbdkit module, so redefine them here. > + EXTENT_HOLE = 1 > + EXTENT_ZERO = 2 > + > + def test_extents_1 (self): > + """Test extents.""" > + > + offset = None > + entries = [] > + > + def f(meta_context, o, e, err): > + nonlocal offset, entries > + if meta_con...

...PyModule_AddIntConstant (m, "CACHE_EMULATE", NBDKIT_CACHE_EMULATE); > + PyModule_AddIntConstant (m, "CACHE_NATIVE", NBDKIT_CACHE_NATIVE); > + > + PyModule_AddIntConstant (m, "EXTENT_HOLE", NBDKIT_EXTENT_HOLE); > + PyModule_AddIntConstant (m, "EXTENT_ZERO", NBDKIT_EXTENT_ZERO); > + > return m; > } > > -- > 2.23.0 >

..._EMULATE", NBDKIT_CACHE_EMULATE); > > > + PyModule_AddIntConstant (m, "CACHE_NATIVE", NBDKIT_CACHE_NATIVE); > > > + > > > + PyModule_AddIntConstant (m, "EXTENT_HOLE", NBDKIT_EXTENT_HOLE); > > > + PyModule_AddIntConstant (m, "EXTENT_ZERO", NBDKIT_EXTENT_ZERO); > > > + > > > return m; > > > } > > > > > > -- > > > 2.23.0 > > > > > -- > Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones > Read my programming and virtualiza...

...DKIT_CACHE_NONE); + PyModule_AddIntConstant (m, "CACHE_EMULATE", NBDKIT_CACHE_EMULATE); + PyModule_AddIntConstant (m, "CACHE_NATIVE", NBDKIT_CACHE_NATIVE); + + PyModule_AddIntConstant (m, "EXTENT_HOLE", NBDKIT_EXTENT_HOLE); + PyModule_AddIntConstant (m, "EXTENT_ZERO", NBDKIT_EXTENT_ZERO); + return m; } -- 2.23.0

...tant (m, "CACHE_EMULATE", NBDKIT_CACHE_EMULATE); > > + PyModule_AddIntConstant (m, "CACHE_NATIVE", NBDKIT_CACHE_NATIVE); > > + > > + PyModule_AddIntConstant (m, "EXTENT_HOLE", NBDKIT_EXTENT_HOLE); > > + PyModule_AddIntConstant (m, "EXTENT_ZERO", NBDKIT_EXTENT_ZERO); > > + > > return m; > > } > > > > -- > > 2.23.0 > > -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-p2v convert...

...t; self.connect ({"size": 512, "can_cache": "native"}) > self.h.cache (512, 0) > + > + # We don't have access to the magic constants defined in the > + # nbdkit module, so redefine them here. > + EXTENT_HOLE = 1 > + EXTENT_ZERO = 2 ...these constants should have been available through 'import nbdkit'. Otherwise this looks reasonable. -- Eric Blake, Principal Software Engineer Red Hat, Inc. +1-919-301-3226 Virtualization: qemu.org | libvirt.org

...;< blktosec) - 1; + block_t block; + size_t nblocks = 0; + + ufs_debug("ufs_next_extent:\n"); + block = ufs_bmap(inode, lstart >> blktosec, &nblocks); + ufs_debug("blk: %u\n", block); + + if (!block) // Sparse block + inode->next_extent.pstart = EXTENT_ZERO; + else + /* + * Convert blk into sect addr and add the remaining + * sectors into pstart (sector start address). + */ + inode->next_extent.pstart = + ((sector_t) (block << frag_shift) >> SECTOR_SHIFT(fs)) | + (lstart & blkmask); + + /* + * Subtract the remai...

...;< blktosec) - 1; + block_t block; + size_t nblocks = 0; + + ufs_debug("ufs_next_extent:\n"); + block = ufs_bmap(inode, lstart >> blktosec, &nblocks); + ufs_debug("blk: %u\n", block); + + if (!block) // Sparse block + inode->next_extent.pstart = EXTENT_ZERO; + else + /* + * Convert blk into sect addr and add the remaining + * sectors into pstart (sector start address). + */ + inode->next_extent.pstart = + ((sector_t) (block << frag_shift) >> SECTOR_SHIFT(fs)) | + (lstart & blkmask); + + /* + * Subtract the remai...

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

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

From: Raphael S. Carvalho <raphael.scarv at gmail.com> Wrote the documentation below. I think it would be good to push the doc to the wiki as soon as the UFS support gets merged. Unix Fast File System (UFS/FFS) 1/2 on Syslinux - (usage/install) ----- There is a confusion about the name of this file system, then I decided to contact the author who replied: "The name has always been

From: Raphael S. Carvalho <raphael.scarv at gmail.com> Change since v1: * Fix bug on dentry structure (thank you specification; btw, sarcasm), and consequently a bug on ufs_readdir. * Add readlink support (applied tests for symlinks whose destionation path were stored in blk pointers and the file itself). * Several improvements. Wrote the documentation below. I think it would be good to