Filesystems can avoid fragmentation if they know how large files will be.
This library provides a wrapper for the fallocate() syscall (like glibc-2.10+), but also knows the xfs/ocfs2 ioctl and provides fallbacks better than posix_fallocate().
License
GNU Library or Lesser General Public License version 2.0 (LGPLv2)Follow libfallocate
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