d6a26c6a32
- Detailed kmem memory allocation tracking. We can now get on spl module unload a list of all memory allocations which were not free'd and where the original alloc was. E.g. SPL: 15554:632:(spl-kmem.c:442:kmem_fini()) kmem leaked 90/319332 bytes SPL: 15554:648:(spl-kmem.c:451:kmem_fini()) address size data func:line SPL: 15554:648:(spl-kmem.c:457:kmem_fini()) ffff8100734b68b8 32 0100000001005a5a __spl_mutex_init:70 SPL: 15554:648:(spl-kmem.c:457:kmem_fini()) ffff8100734b6148 13 &tl->tl_lock __spl_mutex_init:74 SPL: 15554:648:(spl-kmem.c:457:kmem_fini()) ffff81007ac43730 32 0100000001005a5a __spl_mutex_init:70 SPL: 15554:648:(spl-kmem.c:457:kmem_fini()) ffff81007ac437d8 13 &tl->tl_lock __spl_mutex_init:74 - Shift to using rwsems in kmem implmentation, to simply locking and improve concurency. - Shift to using rwsems in mutex implementation, additionally ensure we never sleep in the init function if non-zero preempt_count or interrupts are disabled as can happen in a slab cache ctor/dtor. - Other minor formating fixes and such. TODO: - Finish the vmem memory allocation tracking - Vet all other SPL primatives for potential sleeping during *_init. I suspect the rwlock implemenation does this and should be fixes just like the mutex implemenation. git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@95 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c |
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