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| author | kaf24@labyrinth.cl.cam.ac.uk <kaf24@labyrinth.cl.cam.ac.uk> | 2003-03-11 00:37:28 +0000 |
|---|---|---|
| committer | kaf24@labyrinth.cl.cam.ac.uk <kaf24@labyrinth.cl.cam.ac.uk> | 2003-03-11 00:37:28 +0000 |
| commit | 1f41c8f857594c33942f4bd2b72ec417f77e7ed9 (patch) | |
| tree | dbb25f0fda1e81bf230f4cca0892a641381119f7 /xenolinux-2.4.21-pre4-sparse/include/asm-xeno/system.h | |
| parent | dddb1acc4135fe9752229895860ea6d3e1513d8a (diff) | |
| download | xen-1f41c8f857594c33942f4bd2b72ec417f77e7ed9.tar.gz xen-1f41c8f857594c33942f4bd2b72ec417f77e7ed9.tar.bz2 xen-1f41c8f857594c33942f4bd2b72ec417f77e7ed9.zip | |
bitkeeper revision 1.122 (3e6d2fc8CULc6D1QN5JO9MAu4FbLdw)
system.h, hypervisor.c:
Reverted to locking for page table updat esynchronisation. Shouldn't be noticeably slower, and the stronger guarantees may be useful in future.
Diffstat (limited to 'xenolinux-2.4.21-pre4-sparse/include/asm-xeno/system.h')
| -rw-r--r-- | xenolinux-2.4.21-pre4-sparse/include/asm-xeno/system.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/xenolinux-2.4.21-pre4-sparse/include/asm-xeno/system.h b/xenolinux-2.4.21-pre4-sparse/include/asm-xeno/system.h index 05ff47c6f0..e318716a66 100644 --- a/xenolinux-2.4.21-pre4-sparse/include/asm-xeno/system.h +++ b/xenolinux-2.4.21-pre4-sparse/include/asm-xeno/system.h @@ -319,7 +319,7 @@ do { \ shared_info_t *_shared = HYPERVISOR_shared_info; \ _shared->events_enable = (x); \ barrier(); \ - if ( _shared->events && (x) ) do_hypervisor_callback(NULL); \ + if ( unlikely(_shared->events) && (x) ) do_hypervisor_callback(NULL); \ } while (0) #define __cli() (HYPERVISOR_shared_info->events_enable = 0); barrier() #define __sti() \ @@ -327,7 +327,7 @@ do { \ shared_info_t *_shared = HYPERVISOR_shared_info; \ _shared->events_enable = 1; \ barrier(); \ - if ( _shared->events ) do_hypervisor_callback(NULL); \ + if ( unlikely(_shared->events) ) do_hypervisor_callback(NULL); \ } while (0) #define safe_halt() ((void)0) |