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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] Remove blkback 2.4 support since we don't support 2.4 dom0 anymore.
# HG changeset patch
# User cl349@xxxxxxxxxxxxxxxxxxxx
# Node ID 9dc059239e2a203c62ee2e30d113e6bc1cd019f6
# Parent d760699356fd26b89fef5d3e7d8f8cc12de8e454
Remove blkback 2.4 support since we don't support 2.4 dom0 anymore.
Signed-off-by: Christian Limpach <Christian.Limpach@xxxxxxxxxxxx>
diff -r d760699356fd -r 9dc059239e2a
linux-2.6-xen-sparse/drivers/xen/blkback/blkback.c
--- a/linux-2.6-xen-sparse/drivers/xen/blkback/blkback.c Tue Aug 23
17:33:11 2005
+++ b/linux-2.6-xen-sparse/drivers/xen/blkback/blkback.c Tue Aug 23
17:51:57 2005
@@ -65,9 +65,6 @@
static PEND_RING_IDX pending_prod, pending_cons;
#define NR_PENDING_REQS (MAX_PENDING_REQS - pending_prod + pending_cons)
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
-static kmem_cache_t *buffer_head_cachep;
-#else
static request_queue_t *plugged_queue;
static inline void flush_plugged_queue(void)
{
@@ -80,7 +77,6 @@
plugged_queue = NULL;
}
}
-#endif
/* When using grant tables to map a frame for device access then the
* handle returned must be used to unmap the frame. This is needed to
@@ -184,11 +180,7 @@
blkif_t *blkif;
struct list_head *ent;
- daemonize(
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- "xenblkd"
-#endif
- );
+ daemonize("xenblkd");
for ( ; ; )
{
@@ -215,11 +207,7 @@
}
/* Push the batch through to disc. */
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
- run_task_queue(&tq_disk);
-#else
flush_plugged_queue();
-#endif
}
}
@@ -268,13 +256,6 @@
}
}
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
-static void end_block_io_op(struct buffer_head *bh, int uptodate)
-{
- __end_block_io_op(bh->b_private, uptodate);
- kmem_cache_free(buffer_head_cachep, bh);
-}
-#else
static int end_block_io_op(struct bio *bio, unsigned int done, int error)
{
if ( bio->bi_size != 0 )
@@ -283,7 +264,6 @@
bio_put(bio);
return error;
}
-#endif
/******************************************************************************
@@ -357,13 +337,9 @@
unsigned long buf; unsigned int nsec;
} seg[BLKIF_MAX_SEGMENTS_PER_REQUEST];
unsigned int nseg;
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
- struct buffer_head *bh;
-#else
struct bio *bio = NULL, *biolist[BLKIF_MAX_SEGMENTS_PER_REQUEST];
int nbio = 0;
request_queue_t *q;
-#endif
/* Check that number of segments is sane. */
nseg = req->nr_segments;
@@ -434,49 +410,6 @@
pending_req->operation = operation;
pending_req->status = BLKIF_RSP_OKAY;
pending_req->nr_pages = nseg;
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
-
- atomic_set(&pending_req->pendcnt, nseg);
- pending_cons++;
- blkif_get(blkif);
-
- for ( i = 0; i < nseg; i++ )
- {
- bh = kmem_cache_alloc(buffer_head_cachep, GFP_KERNEL);
- if ( unlikely(bh == NULL) )
- {
- __end_block_io_op(pending_req, 0);
- continue;
- }
-
- memset(bh, 0, sizeof (struct buffer_head));
-
- init_waitqueue_head(&bh->b_wait);
- bh->b_size = seg[i].nsec << 9;
- bh->b_dev = preq.dev;
- bh->b_rdev = preq.dev;
- bh->b_rsector = (unsigned long)preq.sector_number;
- bh->b_data = (char *)MMAP_VADDR(pending_idx, i) +
- (seg[i].buf & ~PAGE_MASK);
- bh->b_page = virt_to_page(MMAP_VADDR(pending_idx, i));
- bh->b_end_io = end_block_io_op;
- bh->b_private = pending_req;
-
- bh->b_state = (1 << BH_Mapped) | (1 << BH_Lock) |
- (1 << BH_Req) | (1 << BH_Launder);
- if ( operation == WRITE )
- bh->b_state |= (1 << BH_JBD) | (1 << BH_Req) | (1 << BH_Uptodate);
-
- atomic_set(&bh->b_count, 1);
-
- /* Dispatch a single request. We'll flush it to disc later. */
- generic_make_request(operation, bh);
-
- preq.sector_number += seg[i].nsec;
- }
-
-#else
for ( i = 0; i < nseg; i++ )
{
@@ -526,8 +459,6 @@
for ( i = 0; i < nbio; i++ )
submit_bio(operation, biolist[i]);
-#endif
-
return;
bad_descriptor:
@@ -595,12 +526,6 @@
if ( kernel_thread(blkio_schedule, 0, CLONE_FS | CLONE_FILES) < 0 )
BUG();
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
- buffer_head_cachep = kmem_cache_create(
- "buffer_head_cache", sizeof(struct buffer_head),
- 0, SLAB_HWCACHE_ALIGN, NULL, NULL);
-#endif
-
blkif_xenbus_init();
memset( pending_grant_handles, BLKBACK_INVALID_HANDLE, MMAP_PAGES );
diff -r d760699356fd -r 9dc059239e2a
linux-2.6-xen-sparse/drivers/xen/blkback/common.h
--- a/linux-2.6-xen-sparse/drivers/xen/blkback/common.h Tue Aug 23 17:33:11 2005
+++ b/linux-2.6-xen-sparse/drivers/xen/blkback/common.h Tue Aug 23 17:51:57 2005
@@ -27,10 +27,6 @@
#else
#define ASSERT(_p) ((void)0)
#define DPRINTK(_f, _a...) ((void)0)
-#endif
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
-struct block_device;
#endif
struct vbd {
diff -r d760699356fd -r 9dc059239e2a
linux-2.6-xen-sparse/drivers/xen/blkback/interface.c
--- a/linux-2.6-xen-sparse/drivers/xen/blkback/interface.c Tue Aug 23
17:33:11 2005
+++ b/linux-2.6-xen-sparse/drivers/xen/blkback/interface.c Tue Aug 23
17:51:57 2005
@@ -8,10 +8,6 @@
#include "common.h"
#include <asm-xen/evtchn.h>
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
-#define VMALLOC_VMADDR(x) ((unsigned long)(x))
-#endif
static kmem_cache_t *blkif_cachep;
@@ -76,7 +72,7 @@
if ( (vma = get_vm_area(PAGE_SIZE, VM_IOREMAP)) == NULL )
return -ENOMEM;
- err = map_frontend_page(blkif, VMALLOC_VMADDR(vma->addr), shared_page);
+ err = map_frontend_page(blkif, (unsigned long)vma->addr, shared_page);
if (err) {
vfree(vma->addr);
return err;
diff -r d760699356fd -r 9dc059239e2a
linux-2.6-xen-sparse/drivers/xen/blkback/vbd.c
--- a/linux-2.6-xen-sparse/drivers/xen/blkback/vbd.c Tue Aug 23 17:33:11 2005
+++ b/linux-2.6-xen-sparse/drivers/xen/blkback/vbd.c Tue Aug 23 17:51:57 2005
@@ -9,7 +9,6 @@
#include "common.h"
#include <asm-xen/xenbus.h>
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
static inline dev_t vbd_map_devnum(blkif_pdev_t cookie)
{
return MKDEV(BLKIF_MAJOR(cookie), BLKIF_MINOR(cookie));
@@ -17,11 +16,6 @@
#define vbd_sz(_v) ((_v)->bdev->bd_part ? \
(_v)->bdev->bd_part->nr_sects : (_v)->bdev->bd_disk->capacity)
#define bdev_put(_b) blkdev_put(_b)
-#else
-#define vbd_sz(_v) (blk_size[MAJOR((_v)->pdevice)][MINOR((_v)->pdevice)]*2)
-#define bdev_put(_b) ((void)0)
-#define bdev_hardsect_size(_b) 512
-#endif
unsigned long vbd_size(struct vbd *vbd)
{
@@ -56,7 +50,6 @@
vbd->pdevice = pdevice;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
vbd->bdev = open_by_devnum(
vbd_map_devnum(vbd->pdevice),
vbd->readonly ? FMODE_READ : FMODE_WRITE);
@@ -77,13 +70,6 @@
vbd->type |= VDISK_CDROM;
if ( vbd->bdev->bd_disk->flags & GENHD_FL_REMOVABLE )
vbd->type |= VDISK_REMOVABLE;
-#else
- if ( (blk_size[MAJOR(vbd->pdevice)] == NULL) || (vbd_sz(vbd) == 0) )
- {
- DPRINTK("vbd_creat: device %08x doesn't exist.\n", vbd->pdevice);
- return -ENOENT;
- }
-#endif
DPRINTK("Successful creation of handle=%04x (dom=%u)\n",
handle, blkif->domid);
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