https://github.com/torvalds/linux
Revision 5a4e6dccbc0cd1b726820b782daebf887dcb95e9 authored by Roland Dreier on 31 August 2006, 23:43:06 UTC, committed by Roland Dreier on 01 September 2006, 00:25:56 UTC
It is supposed to be OK to call mthca_create_ah() and mthca_destroy_ah() from any context. However, for mem-full HCAs, these functions use the mthca_alloc() and mthca_free() bitmap helpers, and those helpers use non-IRQ-safe spin_lock() internally. Lockdep correctly warns that this could lead to a deadlock. Fix this by changing mthca_alloc() and mthca_free() to use spin_lock_irqsave(). Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Tip revision: 5a4e6dccbc0cd1b726820b782daebf887dcb95e9 authored by Roland Dreier on 31 August 2006, 23:43:06 UTC
IB/mthca: Use IRQ safe locks to protect allocation bitmaps
IB/mthca: Use IRQ safe locks to protect allocation bitmaps
Tip revision: 5a4e6dc
| File | Mode | Size |
|---|---|---|
| Documentation | ||
| arch | ||
| block | ||
| crypto | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| scripts | ||
| security | ||
| sound | ||
| usr | ||
| .gitignore | -rw-r--r-- | 521 bytes |
| COPYING | -rw-r--r-- | 18.3 KB |
| CREDITS | -rw-r--r-- | 87.4 KB |
| Kbuild | -rw-r--r-- | 1.2 KB |
| MAINTAINERS | -rw-r--r-- | 71.0 KB |
| Makefile | -rw-r--r-- | 46.5 KB |
| README | -rw-r--r-- | 16.2 KB |
| REPORTING-BUGS | -rw-r--r-- | 3.0 KB |
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