Revision 2c8fc867602e385fd2abe76da0b6bda8ed907547 authored by Borislav Petkov on 03 October 2011, 18:28:18 UTC, committed by David S. Miller on 03 October 2011, 18:28:18 UTC
Simon Kirby reported that on his RAID setup with idedisk underneath the box OOMs after a couple of days of runtime. Running with CONFIG_DEBUG_KMEMLEAK pointed to idedisk_prep_fn() which unconditionally allocates an ide_cmd struct. However, ide_requeue_and_plug() can be called more than once per request, either from the request issue or the IRQ handler path and do blk_peek_request() ends up in idedisk_prep_fn() repeatedly, allocating a struct ide_cmd everytime and "forgetting" the previous pointer. Make sure the code reuses the old allocated chunk. Reported-and-tested-by: Simon Kirby <sim@hostway.ca> Cc: <stable@kernel.org> [ 39.x, 3.0.x ] Link: http://marc.info/?l=linux-kernel&m=131667641517919 Link: http://lkml.kernel.org/r/20110922072643.GA27232@hostway.ca Signed-off-by: Borislav Petkov <bp@alien8.de> Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent 9b13776
| File | Mode | Size |
|---|---|---|
| Documentation | ||
| arch | ||
| bench | ||
| config | ||
| python | ||
| scripts | ||
| util | ||
| .gitignore | -rw-r--r-- | 230 bytes |
| CREDITS | -rw-r--r-- | 603 bytes |
| MANIFEST | -rw-r--r-- | 288 bytes |
| Makefile | -rw-r--r-- | 29.7 KB |
| builtin-annotate.c | -rw-r--r-- | 7.4 KB |
| builtin-bench.c | -rw-r--r-- | 4.8 KB |
| builtin-buildid-cache.c | -rw-r--r-- | 3.1 KB |
| builtin-buildid-list.c | -rw-r--r-- | 1.5 KB |
| builtin-diff.c | -rw-r--r-- | 6.3 KB |
| builtin-evlist.c | -rw-r--r-- | 1.1 KB |
| builtin-help.c | -rw-r--r-- | 11.2 KB |
| builtin-inject.c | -rw-r--r-- | 5.6 KB |
| builtin-kmem.c | -rw-r--r-- | 17.2 KB |
| builtin-kvm.c | -rw-r--r-- | 3.6 KB |
| builtin-list.c | -rw-r--r-- | 1.4 KB |
| builtin-lock.c | -rw-r--r-- | 23.0 KB |
| builtin-probe.c | -rw-r--r-- | 11.1 KB |
| builtin-record.c | -rw-r--r-- | 22.3 KB |
| builtin-report.c | -rw-r--r-- | 15.3 KB |
| builtin-sched.c | -rw-r--r-- | 43.7 KB |
| builtin-script.c | -rw-r--r-- | 30.7 KB |
| builtin-stat.c | -rw-r--r-- | 32.4 KB |
| builtin-test.c | -rw-r--r-- | 23.2 KB |
| builtin-timechart.c | -rw-r--r-- | 23.3 KB |
| builtin-top.c | -rw-r--r-- | 27.8 KB |
| builtin.h | -rw-r--r-- | 2.0 KB |
| command-list.txt | -rw-r--r-- | 814 bytes |
| design.txt | -rw-r--r-- | 17.3 KB |
| perf-archive.sh | -rw-r--r-- | 1.2 KB |
| perf.c | -rw-r--r-- | 12.0 KB |
| perf.h | -rw-r--r-- | 4.1 KB |
Computing file changes ...
