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authorVladimir Zapolskiy <vladimir_zapolskiy@mentor.com>2015-09-04 15:47:47 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-04 16:54:41 -0700
commitc98c36355dd6d5c4433c8d17e8eb839ca9b97606 (patch)
tree8a2c3e9e46502184348bd829bc685615db3ca615 /include/linux/genalloc.h
parent73858173593c31cb94bce63fe1c24eb803bb04e6 (diff)
downloadop-kernel-dev-c98c36355dd6d5c4433c8d17e8eb839ca9b97606.zip
op-kernel-dev-c98c36355dd6d5c4433c8d17e8eb839ca9b97606.tar.gz
genalloc: add support of multiple gen_pools per device
This change fills devm_gen_pool_create()/gen_pool_get() "name" argument stub with contents and extends of_gen_pool_get() functionality on this basis. If there is no associated platform device with a device node passed to of_gen_pool_get(), the function attempts to get a label property or device node name (= repeats MTD OF partition standard) and seeks for a named gen_pool registered by device of the parent device node. The main idea of the change is to allow registration of independent gen_pools under the same umbrella device, say "partitions" on "storage device", the original functionality of one "partition" per "storage device" is untouched. [akpm@linux-foundation.org: fix constness in devres_find()] [dan.carpenter@oracle.com: freeing const data pointers] Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com> Cc: Philipp Zabel <p.zabel@pengutronix.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/genalloc.h')
-rw-r--r--include/linux/genalloc.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/genalloc.h b/include/linux/genalloc.h
index 6afa65e..7ff168d 100644
--- a/include/linux/genalloc.h
+++ b/include/linux/genalloc.h
@@ -59,6 +59,8 @@ struct gen_pool {
genpool_algo_t algo; /* allocation function */
void *data;
+
+ const char *name;
};
/*
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