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authorDr. David Alan Gilbert <dgilbert@redhat.com>2017-02-24 18:28:33 +0000
committerDr. David Alan Gilbert <dgilbert@redhat.com>2017-02-28 11:30:23 +0000
commite2fa71f527510387f9d474414eba7f9812c58347 (patch)
tree68a5e82cbaf94edf5bf40c2454fa4697322db2e4 /scripts/qapi-commands.py
parentd3a5038c461b9436e5bc82a802b7a843b79f417f (diff)
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postcopy: enhance ram_block_discard_range for hugepages
Unfortunately madvise DONTNEED doesn't work on hugepagetlb
so use fallocate(FALLOC_FL_PUNCH_HOLE)
qemu_fd_getpagesize only sets the page based off a file
if the file is from hugetlbfs.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Message-Id: <20170224182844.32452-6-dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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