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Commit c39ae60d authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jens Axboe
Browse files

block: remove ARCH_BIOVEC_PHYS_MERGEABLE 



Take the Xen check into the core code instead of delegating it to
the architectures.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 20e32676

arch/arm/include/asm/io.h

+0 −3
Original line number Diff line number Diff line
@@ -459,9 +459,6 @@ extern void pci_iounmap(struct pci_dev *dev, void __iomem *addr); 


#include <asm-generic/io.h>



#define ARCH_BIOVEC_PHYS_MERGEABLE(vec1, vec2)				\

	 (!xen_domain() || xen_biovec_phys_mergeable(vec1, vec2))



#ifdef CONFIG_MMU

#define ARCH_HAS_VALID_PHYS_ADDR_RANGE

extern int valid_phys_addr_range(phys_addr_t addr, size_t size);

arch/arm64/include/asm/io.h

+0 −3
Original line number Diff line number Diff line
@@ -205,8 +205,5 @@ extern int valid_mmap_phys_addr_range(unsigned long pfn, size_t size); 


extern int devmem_is_allowed(unsigned long pfn);



#define ARCH_BIOVEC_PHYS_MERGEABLE(vec1, vec2)				\

	 (!xen_domain() || xen_biovec_phys_mergeable(vec1, vec2))



#endif	/* __KERNEL__ */

#endif	/* __ASM_IO_H */

arch/x86/include/asm/io.h

+0 −3
Original line number Diff line number Diff line
@@ -371,9 +371,6 @@ extern bool is_early_ioremap_ptep(pte_t *ptep); 


#ifdef CONFIG_XEN

#include <xen/xen.h>



#define ARCH_BIOVEC_PHYS_MERGEABLE(vec1, vec2)				\

	 (!xen_domain() || xen_biovec_phys_mergeable(vec1, vec2))

#endif	/* CONFIG_XEN */



#define IO_SPACE_LIMIT 0xffff

block/blk.h

+2 −5
Original line number Diff line number Diff line
@@ -4,6 +4,7 @@ 


#include <linux/idr.h>

#include <linux/blk-mq.h>

#include <xen/xen.h>

#include "blk-mq.h"



/* Amount of time in which a process may batch requests */
@@ -149,10 +150,6 @@ static inline void blk_queue_enter_live(struct request_queue *q) 
	percpu_ref_get(&q->q_usage_counter);

}



#ifndef ARCH_BIOVEC_PHYS_MERGEABLE

#define ARCH_BIOVEC_PHYS_MERGEABLE(vec1, vec2) true

#endif



static inline bool biovec_phys_mergeable(struct request_queue *q,

		struct bio_vec *vec1, struct bio_vec *vec2)

{
@@ -162,7 +159,7 @@ static inline bool biovec_phys_mergeable(struct request_queue *q, 


	if (addr1 + vec1->bv_len != addr2)

		return false;

	if (!ARCH_BIOVEC_PHYS_MERGEABLE(vec1, vec2))

	if (xen_domain() && !xen_biovec_phys_mergeable(vec1, vec2))

		return false;

	if ((addr1 | mask) != ((addr2 + vec2->bv_len - 1) | mask))

		return false;

drivers/xen/biomerge.c

+1 −1
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

#include <linux/bio.h>

#include <linux/io.h>

#include <linux/export.h>

#include <xen/xen.h>

#include <xen/page.h>



bool xen_biovec_phys_mergeable(const struct bio_vec *vec1,