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McKenney" To: rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, mingo@kernel.org, jiangshanlai@gmail.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com, fweisbec@gmail.com, oleg@redhat.com, joel@joelfernandes.org, "Paul E . McKenney" Subject: [PATCH tip/core/rcu 8/8] acpi: Use built-in RCU list checking for acpi_ioremaps list Date: Thu, 1 Aug 2019 15:42:58 -0700 X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190801224240.GA16092@linux.ibm.com> References: <20190801224240.GA16092@linux.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 19080122-0060-0000-0000-000003677137 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00011535; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000287; SDB=6.01240735; UDB=6.00654295; IPR=6.01022160; MB=3.00028000; MTD=3.00000008; XFM=3.00000015; UTC=2019-08-01 22:43:04 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19080122-0061-0000-0000-00004A62795A Message-Id: <20190801224258.16679-8-paulmck@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-08-01_09:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=13 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1908010239 Sender: rcu-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: rcu@vger.kernel.org From: "Joel Fernandes (Google)" This commit applies the consolidated list_for_each_entry_rcu() support for lockdep conditions. Acked-by: Rafael J. Wysocki Signed-off-by: Joel Fernandes (Google) Signed-off-by: Paul E. McKenney --- drivers/acpi/osl.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 9c0edf2fc0dd..2f9d0d20b836 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include #include @@ -80,6 +81,7 @@ struct acpi_ioremap { static LIST_HEAD(acpi_ioremaps); static DEFINE_MUTEX(acpi_ioremap_lock); +#define acpi_ioremap_lock_held() lock_is_held(&acpi_ioremap_lock.dep_map) static void __init acpi_request_region (struct acpi_generic_address *gas, unsigned int length, char *desc) @@ -206,7 +208,7 @@ acpi_map_lookup(acpi_physical_address phys, acpi_size size) { struct acpi_ioremap *map; - list_for_each_entry_rcu(map, &acpi_ioremaps, list) + list_for_each_entry_rcu(map, &acpi_ioremaps, list, acpi_ioremap_lock_held()) if (map->phys <= phys && phys + size <= map->phys + map->size) return map; @@ -249,7 +251,7 @@ acpi_map_lookup_virt(void __iomem *virt, acpi_size size) { struct acpi_ioremap *map; - list_for_each_entry_rcu(map, &acpi_ioremaps, list) + list_for_each_entry_rcu(map, &acpi_ioremaps, list, acpi_ioremap_lock_held()) if (map->virt <= virt && virt + size <= map->virt + map->size) return map; -- 2.17.1