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commit-graph: close descriptors after mmap
authorJeff King <peff@peff.net>
Thu, 23 Apr 2020 21:41:13 +0000 (15:41 -0600)
committerJunio C Hamano <gitster@pobox.com>
Sat, 25 Apr 2020 05:25:50 +0000 (22:25 -0700)
commitc8828530b7797f5ab584c84dc2b86d3c14b39c8d
tree1b90f0518485d0547f6654429b1c8780cf187ecetree | snapshot
parentb78a556a6aef0d1406e0038f6cb8401f0282fa98commit | diff
commit-graph: close descriptors after mmap

We don't ever refer to the descriptor after mmap-ing it. And keeping it
open means we can run out of descriptors in degenerate cases (e.g.,
thousands of split chain files). Let's close it as soon as possible.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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