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 |
|---|---|---|
| include | ||
| scripting-engines | ||
| ui | ||
| PERF-VERSION-GEN | -rwxr-xr-x | 773 bytes |
| abspath.c | -rw-r--r-- | 883 bytes |
| alias.c | -rw-r--r-- | 1.4 KB |
| annotate.c | -rw-r--r-- | 14.2 KB |
| annotate.h | -rw-r--r-- | 2.9 KB |
| bitmap.c | -rw-r--r-- | 482 bytes |
| build-id.c | -rw-r--r-- | 2.0 KB |
| build-id.h | -rw-r--r-- | 212 bytes |
| cache.h | -rw-r--r-- | 2.5 KB |
| callchain.c | -rw-r--r-- | 10.5 KB |
| callchain.h | -rw-r--r-- | 3.2 KB |
| cgroup.c | -rw-r--r-- | 3.2 KB |
| cgroup.h | -rw-r--r-- | 341 bytes |
| color.c | -rw-r--r-- | 6.6 KB |
| color.h | -rw-r--r-- | 1.7 KB |
| config.c | -rw-r--r-- | 9.7 KB |
| cpumap.c | -rw-r--r-- | 3.4 KB |
| cpumap.h | -rw-r--r-- | 258 bytes |
| ctype.c | -rw-r--r-- | 1.4 KB |
| debug.c | -rw-r--r-- | 2.0 KB |
| debug.h | -rw-r--r-- | 1.0 KB |
| debugfs.c | -rw-r--r-- | 4.5 KB |
| debugfs.h | -rw-r--r-- | 702 bytes |
| dwarf-aux.c | -rw-r--r-- | 21.8 KB |
| dwarf-aux.h | -rw-r--r-- | 4.0 KB |
| environment.c | -rw-r--r-- | 256 bytes |
| event.c | -rw-r--r-- | 20.9 KB |
| event.h | -rw-r--r-- | 4.4 KB |
| evlist.c | -rw-r--r-- | 12.9 KB |
| evlist.h | -rw-r--r-- | 2.4 KB |
| evsel.c | -rw-r--r-- | 9.7 KB |
| evsel.h | -rw-r--r-- | 4.2 KB |
| exec_cmd.c | -rw-r--r-- | 2.7 KB |
| exec_cmd.h | -rw-r--r-- | 445 bytes |
| generate-cmdlist.sh | -rwxr-xr-x | 447 bytes |
| header.c | -rw-r--r-- | 28.5 KB |
| header.h | -rw-r--r-- | 3.1 KB |
| help.c | -rw-r--r-- | 7.8 KB |
| help.h | -rw-r--r-- | 781 bytes |
| hist.c | -rw-r--r-- | 23.2 KB |
| hist.h | -rw-r--r-- | 3.6 KB |
| hweight.c | -rw-r--r-- | 896 bytes |
| levenshtein.c | -rw-r--r-- | 2.5 KB |
| levenshtein.h | -rw-r--r-- | 242 bytes |
| map.c | -rw-r--r-- | 14.8 KB |
| map.h | -rw-r--r-- | 6.6 KB |
| pager.c | -rw-r--r-- | 1.8 KB |
| parse-events.c | -rw-r--r-- | 24.6 KB |
| parse-events.h | -rw-r--r-- | 1.2 KB |
| parse-options.c | -rw-r--r-- | 13.6 KB |
| parse-options.h | -rw-r--r-- | 7.4 KB |
| path.c | -rw-r--r-- | 3.3 KB |
| probe-event.c | -rw-r--r-- | 45.8 KB |
| probe-event.h | -rw-r--r-- | 4.1 KB |
| probe-finder.c | -rw-r--r-- | 38.4 KB |
| probe-finder.h | -rw-r--r-- | 3.0 KB |
| pstack.c | -rw-r--r-- | 1.4 KB |
| pstack.h | -rw-r--r-- | 402 bytes |
| python.c | -rw-r--r-- | 28.3 KB |
| quote.c | -rw-r--r-- | 1.2 KB |
| quote.h | -rw-r--r-- | 924 bytes |
| run-command.c | -rw-r--r-- | 4.0 KB |
| run-command.h | -rw-r--r-- | 1.8 KB |
| session.c | -rw-r--r-- | 33.9 KB |
| session.h | -rw-r--r-- | 4.9 KB |
| setup.py | -rw-r--r-- | 1.3 KB |
| sigchain.c | -rw-r--r-- | 976 bytes |
| sigchain.h | -rw-r--r-- | 192 bytes |
| sort.c | -rw-r--r-- | 7.8 KB |
| sort.h | -rw-r--r-- | 2.4 KB |
| strbuf.c | -rw-r--r-- | 2.9 KB |
| strbuf.h | -rw-r--r-- | 3.0 KB |
| strfilter.c | -rw-r--r-- | 4.1 KB |
| strfilter.h | -rw-r--r-- | 1.3 KB |
| string.c | -rw-r--r-- | 5.8 KB |
| strlist.c | -rw-r--r-- | 3.6 KB |
| strlist.h | -rw-r--r-- | 2.2 KB |
| svghelper.c | -rw-r--r-- | 14.7 KB |
| svghelper.h | -rw-r--r-- | 1.0 KB |
| symbol.c | -rw-r--r-- | 62.6 KB |
| symbol.h | -rw-r--r-- | 6.4 KB |
| thread.c | -rw-r--r-- | 2.7 KB |
| thread.h | -rw-r--r-- | 1.3 KB |
| thread_map.c | -rw-r--r-- | 1.2 KB |
| thread_map.h | -rw-r--r-- | 378 bytes |
| top.c | -rw-r--r-- | 6.6 KB |
| top.h | -rw-r--r-- | 1.7 KB |
| trace-event-info.c | -rw-r--r-- | 9.7 KB |
| trace-event-parse.c | -rw-r--r-- | 61.6 KB |
| trace-event-read.c | -rw-r--r-- | 9.7 KB |
| trace-event-scripting.c | -rw-r--r-- | 4.3 KB |
| trace-event.h | -rw-r--r-- | 6.3 KB |
| types.h | -rw-r--r-- | 446 bytes |
| usage.c | -rw-r--r-- | 1.7 KB |
| util.c | -rw-r--r-- | 2.0 KB |
| util.h | -rw-r--r-- | 5.7 KB |
| values.c | -rw-r--r-- | 6.5 KB |
| values.h | -rw-r--r-- | 618 bytes |
| wrapper.c | -rw-r--r-- | 790 bytes |
| xyarray.c | -rw-r--r-- | 364 bytes |
| xyarray.h | -rw-r--r-- | 432 bytes |
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