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authorAndrew Morton <akpm@osdl.org>2005-10-23 23:57:18 +0400
committerLinus Torvalds <torvalds@g5.osdl.org>2005-10-24 03:38:39 +0400
commit8d3b35914aa54232b27e6a2b57d84092aadc5e86 (patch)
tree809be8fad6743a751964677e68c5c01af3198e4b /include/linux/idr.h
parentc0fef676bbd75e711711ed3ff5bebb7bfd1bdb00 (diff)
downloadlinux-8d3b35914aa54232b27e6a2b57d84092aadc5e86.tar.xz
[PATCH] inotify/idr leak fix
Fix a bug which was reported and diagnosed by Stefan Jones <stefan.jones@churchillrandoms.co.uk> IDR trees include a cache of idr_layer objects. There's no way to destroy this cache, so when we discard an overall idr tree we end up leaking some memory. Add and use idr_destroy() for this. v9fs and infiniband also need to use idr_destroy() to avoid leaks. Or, we make the cache global, like radix_tree_preload(). Which is probably better. Later. Cc: Eric Van Hensbergen <ericvh@ericvh.myip.org> Cc: Roland Dreier <rolandd@cisco.com> Cc: Robert Love <rml@novell.com> Cc: John McCutchan <ttb@tentacle.dhs.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/idr.h')
-rw-r--r--include/linux/idr.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/idr.h b/include/linux/idr.h
index ca3b7e462576..3d5de45f961b 100644
--- a/include/linux/idr.h
+++ b/include/linux/idr.h
@@ -75,4 +75,5 @@ int idr_pre_get(struct idr *idp, unsigned gfp_mask);
int idr_get_new(struct idr *idp, void *ptr, int *id);
int idr_get_new_above(struct idr *idp, void *ptr, int starting_id, int *id);
void idr_remove(struct idr *idp, int id);
+void idr_destroy(struct idr *idp);
void idr_init(struct idr *idp);