This is a note to let you know that I've just added the patch titled
dm thin: fix memory leak in process_prepared_mapping error paths
to the 3.5-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
dm-thin-fix-memory-leak-in-process_prepared_mapping-error-paths.patch
and it can be found in the queue-3.5 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 905386f82d08f66726912f303f3e6605248c60a3 Mon Sep 17 00:00:00 2001
From: Joe Thornber <[email protected]>
Date: Fri, 27 Jul 2012 15:08:05 +0100
Subject: dm thin: fix memory leak in process_prepared_mapping error paths
From: Joe Thornber <[email protected]>
commit 905386f82d08f66726912f303f3e6605248c60a3 upstream.
Fix memory leak in process_prepared_mapping by always freeing
the dm_thin_new_mapping structs from the mapping_pool mempool on
the error paths.
Signed-off-by: Joe Thornber <[email protected]>
Signed-off-by: Mike Snitzer <[email protected]>
Signed-off-by: Alasdair G Kergon <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/md/dm-thin.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -859,7 +859,7 @@ static void process_prepared_mapping(str
if (m->err) {
cell_error(m->cell);
- return;
+ goto out;
}
/*
@@ -871,7 +871,7 @@ static void process_prepared_mapping(str
if (r) {
DMERR("dm_thin_insert_block() failed");
cell_error(m->cell);
- return;
+ goto out;
}
/*
@@ -886,6 +886,7 @@ static void process_prepared_mapping(str
} else
cell_defer(tc, m->cell, m->data_block);
+out:
list_del(&m->list);
mempool_free(m, tc->pool->mapping_pool);
}
Patches currently in stable-queue which might be from [email protected] are
queue-3.5/dm-thin-fix-memory-leak-in-process_prepared_mapping-error-paths.patch
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