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>
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| File | Mode | Size |
|---|---|---|
| Makefile | -rw-r--r-- | 8.1 KB |
| asciidoc.conf | -rw-r--r-- | 2.2 KB |
| examples.txt | -rw-r--r-- | 8.1 KB |
| manpage-1.72.xsl | -rw-r--r-- | 510 bytes |
| manpage-base.xsl | -rw-r--r-- | 1.2 KB |
| manpage-bold-literal.xsl | -rw-r--r-- | 578 bytes |
| manpage-normal.xsl | -rw-r--r-- | 475 bytes |
| manpage-suppress-sp.xsl | -rw-r--r-- | 737 bytes |
| perf-annotate.txt | -rw-r--r-- | 1.7 KB |
| perf-archive.txt | -rw-r--r-- | 480 bytes |
| perf-bench.txt | -rw-r--r-- | 2.4 KB |
| perf-buildid-cache.txt | -rw-r--r-- | 647 bytes |
| perf-buildid-list.txt | -rw-r--r-- | 661 bytes |
| perf-diff.txt | -rw-r--r-- | 1.4 KB |
| perf-evlist.txt | -rw-r--r-- | 413 bytes |
| perf-help.txt | -rw-r--r-- | 928 bytes |
| perf-inject.txt | -rw-r--r-- | 847 bytes |
| perf-kmem.txt | -rw-r--r-- | 770 bytes |
| perf-kvm.txt | -rw-r--r-- | 2.6 KB |
| perf-list.txt | -rw-r--r-- | 3.2 KB |
| perf-lock.txt | -rw-r--r-- | 923 bytes |
| perf-probe.txt | -rw-r--r-- | 6.7 KB |
| perf-record.txt | -rw-r--r-- | 3.6 KB |
| perf-report.txt | -rw-r--r-- | 3.1 KB |
| perf-sched.txt | -rw-r--r-- | 1.5 KB |
| perf-script-perl.txt | -rw-r--r-- | 7.2 KB |
| perf-script-python.txt | -rw-r--r-- | 22.9 KB |
| perf-script.txt | -rw-r--r-- | 6.6 KB |
| perf-stat.txt | -rw-r--r-- | 3.1 KB |
| perf-test.txt | -rw-r--r-- | 344 bytes |
| perf-timechart.txt | -rw-r--r-- | 988 bytes |
| perf-top.txt | -rw-r--r-- | 2.6 KB |
| perf.txt | -rw-r--r-- | 565 bytes |
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