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Re: [trans-mem] Beginning of refactoring

From: Torvald Riegel <triegel at redhat dot com>
To: GCC Patches <gcc-patches at gcc dot gnu dot org>
Cc: Richard Henderson <rth at redhat dot com>
Date: Sat, 09 Jul 2011 16:30:19 +0200
Subject: Re: [trans-mem] Beginning of refactoring
References: <1306357828.13348.423.camel@triegel.csb>

The attached patch makes flat nesting the default, while still
supporting closed nesting on demand (for user-controlled aborts via
__transaction_cancel).
Previously, a new transaction object was created for each nested
transaction. The patch changes this to using one transaction object
during the whole lifetime of a thread and keeping checkpoints of the
transaction state when starting closed nested transactions. This allows
us to easily use flat nesting and decreases the transaction start/commit
overheads to some extent.

OK for branch?

Attachment: patch
Description: Text document

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