Emmanuel T Odeke c77418f4ca [release-branch.go1.15] database/sql: fix tx stmt deadlock when rollback ... Tx acquires tx.closemu W-lock and then acquires stmt.closemu.W-lock to fully close the transaction and associated prepared statement. Stmt query and execution run in reverse ways - acquires stmt.closemu.R-lock and then acquires tx.closemu.R-lock to grab tx connection, which may cause deadlock. Prevent the lock is held around tx.closePrepared to ensure no deadlock happens. Includes a test fix from CL 266097. Fixes #42884 Updates #40985 Updates #42259 Change-Id: Id52737660ada3cebdfff6efc23366cdc3224b8e8 Reviewed-on: https://go-review.googlesource.com/c/go/+/250178 Run-TryBot: Emmanuel Odeke <emmanuel@orijtech.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Daniel Theophanes <kardianos@gmail.com> Trust: Emmanuel Odeke <emmanuel@orijtech.com> (cherry picked from commit d4c1ad8829) Reviewed-on: https://go-review.googlesource.com/c/go/+/284513 Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>		2021-03-30 21:41:42 +00:00
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driver	database/sql/driver: use correct method name "Connect" in DriverContext docs	2020-05-30 03:20:54 +00:00
convert.go	all: fix typos	2019-09-08 17:28:20 +00:00
convert_test.go	all: fix typos	2019-09-08 17:28:20 +00:00
ctxutil.go	std: remove unused bits of code all over the place	2019-09-02 12:57:37 +00:00
doc.txt	database/sql: fix outdated package name in doc.txt	2017-06-30 19:11:17 +00:00
example_cli_test.go	database/sql: add examples for opening and testing a DB pool	2018-11-16 17:17:09 +00:00
example_service_test.go	database/sql: add examples for opening and testing a DB pool	2018-11-16 17:17:09 +00:00
example_test.go	database/sql: fix incorrect function name in example_test	2020-04-28 14:05:09 +00:00
fakedb_test.go	database/sql: prevent Tx statement from committing after rollback	2020-04-20 17:45:50 +00:00
sql.go	[release-branch.go1.15] database/sql: fix tx stmt deadlock when rollback	2021-03-30 21:41:42 +00:00
sql_test.go	[release-branch.go1.15] database/sql: fix tx stmt deadlock when rollback	2021-03-30 21:41:42 +00:00