From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/drivers/block/xen-blkback/common.h | 13 +++++++++----
1 files changed, 9 insertions(+), 4 deletions(-)
diff --git a/kernel/drivers/block/xen-blkback/common.h b/kernel/drivers/block/xen-blkback/common.h
index 1d3002d..5eff347 100644
--- a/kernel/drivers/block/xen-blkback/common.h
+++ b/kernel/drivers/block/xen-blkback/common.h
@@ -36,7 +36,6 @@
#include <linux/io.h>
#include <linux/rbtree.h>
#include <asm/setup.h>
-#include <asm/pgalloc.h>
#include <asm/hypervisor.h>
#include <xen/grant_table.h>
#include <xen/page.h>
@@ -227,6 +226,9 @@
sector_t size;
unsigned int flush_support:1;
unsigned int discard_secure:1;
+ /* Connect-time cached feature_persistent parameter value */
+ unsigned int feature_gnt_persistent_parm:1;
+ /* Persistent grants feature negotiation result */
unsigned int feature_gnt_persistent:1;
unsigned int overflow_max_grants:1;
};
@@ -289,9 +291,7 @@
struct work_struct persistent_purge_work;
/* Buffer of free pages to map grant refs. */
- spinlock_t free_pages_lock;
- int free_pages_num;
- struct list_head free_pages;
+ struct gnttab_page_cache free_pages;
struct work_struct free_work;
/* Thread shutdown wait queue. */
@@ -316,9 +316,11 @@
struct work_struct free_work;
unsigned int nr_ring_pages;
+ bool multi_ref;
/* All rings for this device. */
struct xen_blkif_ring *rings;
unsigned int nr_rings;
+ unsigned long buffer_squeeze_end;
};
struct seg_buf {
@@ -375,9 +377,12 @@
struct block_device *bdev;
blkif_sector_t sector_number;
};
+
int xen_blkif_interface_init(void);
+void xen_blkif_interface_fini(void);
int xen_blkif_xenbus_init(void);
+void xen_blkif_xenbus_fini(void);
irqreturn_t xen_blkif_be_int(int irq, void *dev_id);
int xen_blkif_schedule(void *arg);
--
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