https://github.com/torvalds/linux
Revision ad3e34bba4b64ab8e1f5ea1a17768e1a0d9648ea authored by Josef Bacik on 08 June 2011, 18:45:50 UTC, committed by Arne Jansen on 10 June 2011, 10:14:12 UTC
Arne's scrub stuff exposed a problem with mapping the extent buffer in reada_for_search. He searches the commit root with multiple threads and with skip_locking set, so we can race and overwrite node->map_token since node isn't locked. So fix this so that we only map the extent buffer if we don't already have a map_token and skip_locking isn't set. Without this patch scrub would panic almost immediately, with the patch it doesn't panic anymore. Thanks, Reported-by: Arne Jansen <sensille@gmx.net> Signed-off-by: Josef Bacik <josef@redhat.com>
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History 
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Tip revision: ad3e34bba4b64ab8e1f5ea1a17768e1a0d9648ea authored by Josef Bacik on 08 June 2011, 18:45:50 UTC
Btrfs: don't map extent buffer if path->skip_locking is set
Btrfs: don't map extent buffer if path->skip_locking is set
Tip revision: ad3e34b
| File | Mode | Size |
|---|---|---|
| Documentation | ||
| arch | ||
| block | ||
| crypto | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .gitignore | -rw-r--r-- | 941 bytes |
| .mailmap | -rw-r--r-- | 4.1 KB |
| COPYING | -rw-r--r-- | 18.3 KB |
| CREDITS | -rw-r--r-- | 91.7 KB |
| Kbuild | -rw-r--r-- | 2.4 KB |
| Kconfig | -rw-r--r-- | 252 bytes |
| MAINTAINERS | -rw-r--r-- | 188.3 KB |
| Makefile | -rw-r--r-- | 51.1 KB |
| README | -rw-r--r-- | 17.1 KB |
| REPORTING-BUGS | -rw-r--r-- | 3.3 KB |
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