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| author | Serge E. Hallyn <serue@us.ibm.com> | 2009-12-15 16:47:27 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-01-28 15:02:25 -0800 |
| commit | a0dffef3213a314d3a53e4fffe7d325edbe1d05c (patch) | |
| tree | 5a46d7d1753613d43414253d0962239ea5295b80 /REPORTING-BUGS | |
| parent | a5981dfb82297858395742530509c7f80a41e3bd (diff) | |
| download | lwn-a0dffef3213a314d3a53e4fffe7d325edbe1d05c.tar.gz lwn-a0dffef3213a314d3a53e4fffe7d325edbe1d05c.zip | |
ipc ns: fix memory leak (idr)
commit 7d6feeb287c61aafa88f06345387b1188edf4b86 upstream.
We have apparently had a memory leak since
7ca7e564e049d8b350ec9d958ff25eaa24226352 "ipc: store ipcs into IDRs" in
2007. The idr of which 3 exist for each ipc namespace is never freed.
This patch simply frees them when the ipcns is freed. I don't believe any
idr_remove() are done from rcu (and could therefore be delayed until after
this idr_destroy()), so the patch should be safe. Some quick testing
showed no harm, and the memory leak fixed.
Caught by kmemleak.
Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'REPORTING-BUGS')
0 files changed, 0 insertions, 0 deletions