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[Libguestfs] [PATCH 0/3] file: Zero for block devices and older file systems



This is the second version to support efficient zero for block devices
on older kernels (e.g. RHEL 7.5), and file systems that do not support
yet FALLOC_FS_ZERO_RANGE (e.g. NFS 4.2).

Changes since v1:
- Split to smaller patches
- Skip linux only includes on other systems
- Skip code using BLKZEROOUT if the macro is not defined
- Try BLKZEROOUT only if the offset and count are aligned to device
  sector size.

v1 was here:
https://www.redhat.com/archives/libguestfs/2018-July/msg00084.html

Nir Soffer (3):
  file: Avoid unsupported fallocate() calls
  file: Support zero without ZERO_RANGE
  file: Zero for block devices on old kernels

 plugins/file/file.c | 194 +++++++++++++++++++++++++++++++++-----------
 1 file changed, 147 insertions(+), 47 deletions(-)

-- 
2.17.1


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