diff options
| author | Nick Piggin <npiggin@suse.de> | 2007-07-25 13:19:22 +0200 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2007-07-27 02:46:26 +0200 |
| commit | a51b34593f691a0837d752a1394dcee19483c607 (patch) | |
| tree | 1e87c0139aa6c5a96e73f3664e5c3856f2369c48 /drivers/char | |
| parent | AGP: document boot options (diff) | |
| download | linux-a51b34593f691a0837d752a1394dcee19483c607.tar.xz linux-a51b34593f691a0837d752a1394dcee19483c607.zip | |
agp: don't lock pages
AGP should not need to lock pages. They are not protecting any race
because there is no lock_page calls, only SetPageLocked.
This is causing hangs with d00806b183152af6d24f46f0c33f14162ca1262a.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/agp/generic.c | 2 | ||||
| -rw-r--r-- | drivers/char/agp/intel-agp.c | 2 | ||||
| -rw-r--r-- | drivers/char/agp/sgi-agp.c | 1 |
3 files changed, 0 insertions, 5 deletions
diff --git a/drivers/char/agp/generic.c b/drivers/char/agp/generic.c index d535c406b319..3db4f4076ed4 100644 --- a/drivers/char/agp/generic.c +++ b/drivers/char/agp/generic.c @@ -1170,7 +1170,6 @@ void *agp_generic_alloc_page(struct agp_bridge_data *bridge) map_page_into_agp(page); get_page(page); - SetPageLocked(page); atomic_inc(&agp_bridge->current_memory_agp); return page_address(page); } @@ -1187,7 +1186,6 @@ void agp_generic_destroy_page(void *addr) page = virt_to_page(addr); unmap_page_from_agp(page); put_page(page); - unlock_page(page); free_page((unsigned long)addr); atomic_dec(&agp_bridge->current_memory_agp); } diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c index a1240603912c..2f319f474f70 100644 --- a/drivers/char/agp/intel-agp.c +++ b/drivers/char/agp/intel-agp.c @@ -213,7 +213,6 @@ static void *i8xx_alloc_pages(void) } global_flush_tlb(); get_page(page); - SetPageLocked(page); atomic_inc(&agp_bridge->current_memory_agp); return page_address(page); } @@ -229,7 +228,6 @@ static void i8xx_destroy_pages(void *addr) change_page_attr(page, 4, PAGE_KERNEL); global_flush_tlb(); put_page(page); - unlock_page(page); __free_pages(page, 2); atomic_dec(&agp_bridge->current_memory_agp); } diff --git a/drivers/char/agp/sgi-agp.c b/drivers/char/agp/sgi-agp.c index cda608c42bea..98cf8abb3e57 100644 --- a/drivers/char/agp/sgi-agp.c +++ b/drivers/char/agp/sgi-agp.c @@ -51,7 +51,6 @@ static void *sgi_tioca_alloc_page(struct agp_bridge_data *bridge) return NULL; get_page(page); - SetPageLocked(page); atomic_inc(&agp_bridge->current_memory_agp); return page_address(page); } |