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| author | Mark Johnston <markj@FreeBSD.org> | 2019-06-26 17:37:51 +0000 |
|---|---|---|
| committer | Mark Johnston <markj@FreeBSD.org> | 2019-06-26 17:37:51 +0000 |
| commit | 0fd977b3fa32d54b61554416363faae8a7bfaa2b (patch) | |
| tree | 224a32e71fe89996fe93ab9584f9613473e1b38d /sys/dev/drm2 | |
| parent | 926c3367c8dd9bf69c81699618ce2a71c6fa7bc3 (diff) | |
| download | src-0fd977b3fa32d54b61554416363faae8a7bfaa2b.tar.gz src-0fd977b3fa32d54b61554416363faae8a7bfaa2b.zip | |
Add a return value to vm_page_remove().
Use it to indicate whether the page may be safely freed following
its removal from the object. Also change vm_page_remove() to assume
that the page's object pointer is non-NULL, and have callers perform
this check instead.
This is a step towards an implementation of an atomic reference counter
for each physical page structure.
Reviewed by: alc, dougm, kib
MFC after: 1 week
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D20758
Notes
Notes:
svn path=/head/; revision=349432
Diffstat (limited to 'sys/dev/drm2')
| -rw-r--r-- | sys/dev/drm2/ttm/ttm_bo_vm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/dev/drm2/ttm/ttm_bo_vm.c b/sys/dev/drm2/ttm/ttm_bo_vm.c index 6f7184857ce6..43d027fc5cd9 100644 --- a/sys/dev/drm2/ttm/ttm_bo_vm.c +++ b/sys/dev/drm2/ttm/ttm_bo_vm.c @@ -115,7 +115,7 @@ ttm_bo_vm_fault(vm_object_t vm_obj, vm_ooffset_t offset, vm_object_pip_add(vm_obj, 1); if (*mres != NULL) { vm_page_lock(*mres); - vm_page_remove(*mres); + (void)vm_page_remove(*mres); vm_page_unlock(*mres); } retry: |