ChangeSet 1.1379, 2005/03/26 02:25:05+00:00, kaf24@xxxxxxxxxxxxxxxxxxxx
Remove some unnecessary flush_page_update_queue() calls.
Signed-off-by: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
linux-2.4.29-xen-sparse/arch/xen/mm/fault.c | 3 ---
linux-2.6.11-xen-sparse/arch/xen/i386/mm/init.c | 5 +----
linux-2.6.11-xen-sparse/drivers/xen/netfront/netfront.c | 6 ------
3 files changed, 1 insertion(+), 13 deletions(-)
diff -Nru a/linux-2.4.29-xen-sparse/arch/xen/mm/fault.c
b/linux-2.4.29-xen-sparse/arch/xen/mm/fault.c
--- a/linux-2.4.29-xen-sparse/arch/xen/mm/fault.c 2005-03-25 22:02:53
-05:00
+++ b/linux-2.4.29-xen-sparse/arch/xen/mm/fault.c 2005-03-25 22:02:53
-05:00
@@ -84,9 +84,6 @@
error_code &= 3;
error_code |= (regs->xcs & 2) << 1;
- /* ensure all updates have completed */
- flush_page_update_queue();
-
/*
* We fault-in kernel-space virtual memory on-demand. The
* 'reference' page table is init_mm.pgd.
diff -Nru a/linux-2.6.11-xen-sparse/arch/xen/i386/mm/init.c
b/linux-2.6.11-xen-sparse/arch/xen/i386/mm/init.c
--- a/linux-2.6.11-xen-sparse/arch/xen/i386/mm/init.c 2005-03-25 22:02:53
-05:00
+++ b/linux-2.6.11-xen-sparse/arch/xen/i386/mm/init.c 2005-03-25 22:02:53
-05:00
@@ -192,7 +192,6 @@
}
pte_ofs = 0;
}
- flush_page_update_queue();
}
pmd_idx = 0;
}
@@ -359,9 +358,8 @@
queue_pgd_pin(__pa(new_pgd));
load_cr3(new_pgd);
queue_pgd_unpin(__pa(old_pgd));
- __flush_tlb_all(); /* implicit flush */
make_page_writable(old_pgd);
- flush_page_update_queue();
+ __flush_tlb_all(); /* implicit flush */
free_bootmem(__pa(old_pgd), PAGE_SIZE);
kernel_physical_mapping_init(new_pgd);
@@ -564,7 +562,6 @@
zone_sizes_init();
/* Switch to the real shared_info page, and clear the dummy page. */
- flush_page_update_queue();
set_fixmap_ma(FIX_SHARED_INFO, xen_start_info.shared_info);
HYPERVISOR_shared_info = (shared_info_t *)fix_to_virt(FIX_SHARED_INFO);
memset(empty_zero_page, 0, sizeof(empty_zero_page));
diff -Nru a/linux-2.6.11-xen-sparse/drivers/xen/netfront/netfront.c
b/linux-2.6.11-xen-sparse/drivers/xen/netfront/netfront.c
--- a/linux-2.6.11-xen-sparse/drivers/xen/netfront/netfront.c 2005-03-25
22:02:53 -05:00
+++ b/linux-2.6.11-xen-sparse/drivers/xen/netfront/netfront.c 2005-03-25
22:02:53 -05:00
@@ -387,12 +387,6 @@
rx_mcl[i].args[2] = 0;
}
- /*
- * We may have allocated buffers which have entries outstanding in the page
- * update queue -- make sure we flush those first!
- */
- flush_page_update_queue();
-
/* After all PTEs have been zapped we blow away stale TLB entries. */
rx_mcl[i-1].args[2] = UVMF_FLUSH_TLB;
-------------------------------------------------------
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