summaryrefslogtreecommitdiffstats
path: root/Documentation/aoe/todo.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/aoe/todo.txt')
-rw-r--r--Documentation/aoe/todo.txt14
1 files changed, 0 insertions, 14 deletions
diff --git a/Documentation/aoe/todo.txt b/Documentation/aoe/todo.txt
deleted file mode 100644
index c09dfad..0000000
--- a/Documentation/aoe/todo.txt
+++ /dev/null
@@ -1,14 +0,0 @@
-There is a potential for deadlock when allocating a struct sk_buff for
-data that needs to be written out to aoe storage. If the data is
-being written from a dirty page in order to free that page, and if
-there are no other pages available, then deadlock may occur when a
-free page is needed for the sk_buff allocation. This situation has
-not been observed, but it would be nice to eliminate any potential for
-deadlock under memory pressure.
-
-Because ATA over Ethernet is not fragmented by the kernel's IP code,
-the destructor member of the struct sk_buff is available to the aoe
-driver. By using a mempool for allocating all but the first few
-sk_buffs, and by registering a destructor, we should be able to
-efficiently allocate sk_buffs without introducing any potential for
-deadlock.