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| author | Andrew Morton <akpm@osdl.org> | 2005-10-23 12:57:18 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-10-23 16:38:39 -0700 |
| commit | 8d3b35914aa54232b27e6a2b57d84092aadc5e86 (patch) | |
| tree | 809be8fad6743a751964677e68c5c01af3198e4b /fs/inotify.c | |
| parent | c0fef676bbd75e711711ed3ff5bebb7bfd1bdb00 (diff) | |
| download | lwn-8d3b35914aa54232b27e6a2b57d84092aadc5e86.tar.gz lwn-8d3b35914aa54232b27e6a2b57d84092aadc5e86.zip | |
[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 'fs/inotify.c')
| -rw-r--r-- | fs/inotify.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/inotify.c b/fs/inotify.c index a37e9fb1da58..9fbaebfdf40b 100644 --- a/fs/inotify.c +++ b/fs/inotify.c @@ -176,6 +176,7 @@ static inline void put_inotify_dev(struct inotify_device *dev) if (atomic_dec_and_test(&dev->count)) { atomic_dec(&dev->user->inotify_devs); free_uid(dev->user); + idr_destroy(&dev->idr); kfree(dev); } } |