Searched hist:171202 (Results 1 - 3 of 3) sorted by relevance
| /freebsd-10.1-release/sys/kern/ | ||
| H A D | subr_unit.c | diff 171202 Wed Jul 04 04:56:58 MDT 2007 kib Since cdev mutex is after system map mutex in global lock order, free() shall not be called while holding cdev mutex. devfs_inos unrhdr has cdev as mutex, thus creating this LOR situation. Postpone calling free() in kern/subr_unit.c:alloc_unr() and nested functions until the unrhdr mutex is dropped. Save the freed items on the ppfree list instead, and provide the clean_unrhdrl() and clean_unrhdr() functions to clean the list. Call clean_unrhdrl() after devfs_create() calls immediately before dropping cdev mutex. devfs_create() is the only user of the alloc_unrl() in the tree. Reviewed by: phk Tested by: Peter Holm LOR: 80 Approved by: re (kensmith) |
| H A D | kern_conf.c | diff 171202 Wed Jul 04 04:56:58 MDT 2007 kib Since cdev mutex is after system map mutex in global lock order, free() shall not be called while holding cdev mutex. devfs_inos unrhdr has cdev as mutex, thus creating this LOR situation. Postpone calling free() in kern/subr_unit.c:alloc_unr() and nested functions until the unrhdr mutex is dropped. Save the freed items on the ppfree list instead, and provide the clean_unrhdrl() and clean_unrhdr() functions to clean the list. Call clean_unrhdrl() after devfs_create() calls immediately before dropping cdev mutex. devfs_create() is the only user of the alloc_unrl() in the tree. Reviewed by: phk Tested by: Peter Holm LOR: 80 Approved by: re (kensmith) |
| /freebsd-10.1-release/sys/sys/ | ||
| H A D | systm.h | diff 171202 Wed Jul 04 04:56:58 MDT 2007 kib Since cdev mutex is after system map mutex in global lock order, free() shall not be called while holding cdev mutex. devfs_inos unrhdr has cdev as mutex, thus creating this LOR situation. Postpone calling free() in kern/subr_unit.c:alloc_unr() and nested functions until the unrhdr mutex is dropped. Save the freed items on the ppfree list instead, and provide the clean_unrhdrl() and clean_unrhdr() functions to clean the list. Call clean_unrhdrl() after devfs_create() calls immediately before dropping cdev mutex. devfs_create() is the only user of the alloc_unrl() in the tree. Reviewed by: phk Tested by: Peter Holm LOR: 80 Approved by: re (kensmith) |
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