hurd-l4/libhurd-mm storage.c pager.h pager.c ca...

[Neal H. Walfield]

CVSROOT:        /sources/hurd
Module name:    hurd-l4
Changes by:     Neal H. Walfield <neal> 07/11/27 15:33:31

Modified files:
        libhurd-mm     : storage.c pager.h pager.c capalloc.c as.c 
                         anonymous.c ChangeLog 

Log message:
        2007-11-27  Neal H. Walfield  <address@hidden>
        
                * as.c: Include <pthread.h>.  Remove dead code.
                (free_spaces_lock): New variable.
                (free_space_split): Assert that it is held.
                (as_alloc): Make thread-safe.
                (as_alloc_at): Likewise.
                (as_free): Likewise.
                (as_alloced_dump): Likewise.
                * storage.c: Include <pthread.h> and <atomic.h>.
                (free_count): Make a uatomic32_t, rather than an int.  Update
                users to access it using atomic operations.
                (struct storage_desc): New field, lock.
                (storage_descs_lock): New global variable.
                (link): Assert that STORAGE_DESCS_LOCK is held.
                (unlink): Likewise.  Don't assert that E->NEXT is NULL, which is
                valid.
                (slab_space_reserve): Make an atomicptr_t, rather than a void *.
                Update users to access it using atomic operations.
                (check_slab_space_reserve): Rewrite function to be thread-safe.
                (storage_desc_free): Assert that STORAGE_DESCS_LOCK is held.
                (storage_alloc): Rewrite function to be thread-safe.
                (storage_free): Likewise.
                (storage_init): Take STORAGE_DESCS_LOCK.  Initialize 
SDESC->LOCK.
                * capalloc.c: Include <pthread.h>.
                (struct cappage_desc): New field, lock.
                (unlink): Don't assert E->NEXT.
                (cappage_descs_lock): New variable.
                (capalloc): Make thread safe.
                (capfree): Likewise.
                * pager.h: Include <pthread.h>.
                (pager_fault_t): Note that PAGER->LOCK will be held.
                (struct pager): New field, lock.
                (pagers_lock): New declaration.
                (pager_install): Note locking requirements.
                (pager_relocate): Likewise.
                (pager_deinstall): Likewise.
                * pager.c (pagers_lock): New definition.
                (pager_install): Add asserts.
                (pager_relocate): Likewise.
                (pager_deinstall): Likewise.
                (pager_fault): Likewise.  Make function thread-safe.
                * anonymous.c (struct storage_desc): Add comment about locking.
                (fault): Add assert.
                (anonymous_pager_alloc): Take PAGERS_LOCK before calling
                pager_install and drop it afterwards.
                (anonymous_pager_destroy): Take PAGERS_LOCK before calling
                pager_deinstall and drop it afterwards.  Take ANON->PAGER.LOCK.

CVSWeb URLs:
http://cvs.savannah.gnu.org/viewcvs/hurd-l4/libhurd-mm/storage.c?cvsroot=hurd&r1=1.3&r2=1.4
http://cvs.savannah.gnu.org/viewcvs/hurd-l4/libhurd-mm/pager.h?cvsroot=hurd&r1=1.2&r2=1.3
http://cvs.savannah.gnu.org/viewcvs/hurd-l4/libhurd-mm/pager.c?cvsroot=hurd&r1=1.4&r2=1.5
http://cvs.savannah.gnu.org/viewcvs/hurd-l4/libhurd-mm/capalloc.c?cvsroot=hurd&r1=1.3&r2=1.4
http://cvs.savannah.gnu.org/viewcvs/hurd-l4/libhurd-mm/as.c?cvsroot=hurd&r1=1.5&r2=1.6
http://cvs.savannah.gnu.org/viewcvs/hurd-l4/libhurd-mm/anonymous.c?cvsroot=hurd&r1=1.3&r2=1.4
http://cvs.savannah.gnu.org/viewcvs/hurd-l4/libhurd-mm/ChangeLog?cvsroot=hurd&r1=1.16&r2=1.17