bpo-44145: Release the GIL around HMAC_Update. (pythonGH-26157)

miss-islington · gpshead · stratakis · commit d4e60ec7d6ff · 2021-08-05T04:09:11.000+02:00
It was always meant to be released for parallelization. This now matches the other similar code in the module. Thanks michaelforney for noticing! (cherry picked from commit c10392e) Co-authored-by: Gregory P. Smith <greg@krypto.org>
diff --git a/Misc/NEWS.d/next/Library/2021-05-16-00-00-38.bpo-44145.ko5SJ7.rst b/Misc/NEWS.d/next/Library/2021-05-16-00-00-38.bpo-44145.ko5SJ7.rst
@@ -0,0 +1,3 @@
+:mod:`hmac` computations were not releasing the GIL while calling the
+OpenSSL ``HMAC_Update`` C API (a new feature in 3.9).  This unintentionally
+prevented parallel computation as other :mod:`hashlib` algorithms support.

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	+:mod:`hmac` computations were not releasing the GIL while calling the
	`2`	+OpenSSL ``HMAC_Update`` C API (a new feature in 3.9). This unintentionally
	`3`	+prevented parallel computation as other :mod:`hashlib` algorithms support.