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authorNaohiro Aota <naohiro.aota@wdc.com>2020-02-25 12:56:13 +0900
committerDavid Sterba <dsterba@suse.com>2020-03-23 17:01:49 +0100
commit5badf512ecd0530fbb517c999fccacf6a9d87dc1 (patch)
tree75ad369e9c035a73f97abf0a7ad99982e51a0079 /tools/perf/scripts/python/export-to-postgresql.py
parentbtrfs: factor out gather_device_info() (diff)
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btrfs: factor out decide_stripe_size()
Factor out decide_stripe_size() from __btrfs_alloc_chunk(). This function calculates the actual stripe size to allocate. decide_stripe_size() handles the common case to round down the 'ndevs' to 'devs_increment' and check the upper and lower limitation of 'ndevs'. decide_stripe_size_regular() decides the size of a stripe and the size of a chunk. The policy is to maximize the number of stripes. This commit has no functional changes. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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