Replace a custom implementation (which doesn't lock the resource tree) by a call to lookup_resource()
Signed-off-by: Geert Uytterhoeven <[email protected]> --- arch/sparc/kernel/ioport.c | 32 +++++++------------------------- 1 files changed, 7 insertions(+), 25 deletions(-) diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c index 91e8c76..7be5438 100644 --- a/arch/sparc/kernel/ioport.c +++ b/arch/sparc/kernel/ioport.c @@ -60,9 +60,6 @@ static inline void mmu_inval_dma_area(void *va, unsigned long len) } #endif -static struct resource *_sparc_find_resource(struct resource *r, - unsigned long); - static void __iomem *_sparc_ioremap(struct resource *res, u32 bus, u32 pa, int sz); static void __iomem *_sparc_alloc_io(unsigned int busno, unsigned long phys, unsigned long size, char *name); @@ -138,7 +135,11 @@ void iounmap(volatile void __iomem *virtual) unsigned long vaddr = (unsigned long) virtual & PAGE_MASK; struct resource *res; - if ((res = _sparc_find_resource(&sparc_iomap, vaddr)) == NULL) { + /* + * XXX Too slow. Can have 8192 DVMA pages on sun4m in the worst case. + * This probably warrants some sort of hashing. + */ + if ((res = lookup_resource(&sparc_iomap, vaddr)) == NULL) { printk("free_io/iounmap: cannot free %lx\n", vaddr); return; } @@ -315,7 +316,7 @@ static void sbus_free_coherent(struct device *dev, size_t n, void *p, struct resource *res; struct page *pgv; - if ((res = _sparc_find_resource(&_sparc_dvma, + if ((res = lookup_resource(&_sparc_dvma, (unsigned long)p)) == NULL) { printk("sbus_free_consistent: cannot free %p\n", p); return; @@ -491,7 +492,7 @@ static void pci32_free_coherent(struct device *dev, size_t n, void *p, struct resource *res; void *pgp; - if ((res = _sparc_find_resource(&_sparc_dvma, + if ((res = lookup_resource(&_sparc_dvma, (unsigned long)p)) == NULL) { printk("pci_free_consistent: cannot free %p\n", p); return; @@ -725,25 +726,6 @@ static const struct file_operations sparc_io_proc_fops = { }; #endif /* CONFIG_PROC_FS */ -/* - * This is a version of find_resource and it belongs to kernel/resource.c. - * Until we have agreement with Linus and Martin, it lingers here. - * - * XXX Too slow. Can have 8192 DVMA pages on sun4m in the worst case. - * This probably warrants some sort of hashing. - */ -static struct resource *_sparc_find_resource(struct resource *root, - unsigned long start) -{ - struct resource *tmp; - - for (tmp = root->child; tmp != 0; tmp = tmp->sibling) { - if (tmp->start == start) - return tmp; - } - return NULL; -} - static void register_proc_sparc_ioport(void) { #ifdef CONFIG_PROC_FS -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-m68k" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
