FAQ Search Today's Posts Mark Forums Read
» Video Reviews

» Linux Archive

Linux-archive is a website aiming to archive linux email lists and to make them easily accessible for linux users/developers.


» Sponsor

» Partners

» Sponsor

Go Back   Linux Archive > Redhat > Device-mapper Development

 
 
LinkBack Thread Tools
 
Old 08-29-2010, 06:00 PM
Malahal Naineni
 
Default imported patch propagate-bounce-gfp-to-stacked-drivers.patch

diff -r 5d97698a7bc5 -r 8305d08f6ecf block/blk-settings.c
--- a/block/blk-settings.c Wed Aug 25 13:44:33 2010 -0700
+++ b/block/blk-settings.c Wed Aug 25 13:44:33 2010 -0700
@@ -126,6 +126,7 @@ void blk_set_default_limits(struct queue
lim->io_opt = 0;
lim->misaligned = 0;
lim->no_cluster = 0;
+ lim->bounce_gfp = 0;
}
EXPORT_SYMBOL(blk_set_default_limits);

@@ -204,7 +205,7 @@ void blk_queue_bounce_limit(struct reque
unsigned long b_pfn = dma_mask >> PAGE_SHIFT;
int dma = 0;

- q->bounce_gfp = GFP_NOIO;
+ q->limits.bounce_gfp = GFP_NOIO;
#if BITS_PER_LONG == 64
/*
* Assume anything <= 4GB can be handled by IOMMU. Actually
@@ -221,7 +222,7 @@ void blk_queue_bounce_limit(struct reque
#endif
if (dma) {
init_emergency_isa_pool();
- q->bounce_gfp = GFP_NOIO | GFP_DMA;
+ q->limits.bounce_gfp = GFP_NOIO | GFP_DMA;
q->limits.bounce_pfn = b_pfn;
}
}
@@ -549,6 +550,7 @@ int blk_stack_limits(struct queue_limits

t->no_cluster |= b->no_cluster;
t->discard_zeroes_data &= b->discard_zeroes_data;
+ t->bounce_gfp |= b->bounce_gfp;

/* Physical block size a multiple of the logical block size? */
if (t->physical_block_size & (t->logical_block_size - 1)) {
diff -r 5d97698a7bc5 -r 8305d08f6ecf block/scsi_ioctl.c
--- a/block/scsi_ioctl.c Wed Aug 25 13:44:33 2010 -0700
+++ b/block/scsi_ioctl.c Wed Aug 25 13:44:33 2010 -0700
@@ -436,7 +436,7 @@ int sg_scsi_ioctl(struct request_queue *

bytes = max(in_len, out_len);
if (bytes) {
- buffer = kzalloc(bytes, q->bounce_gfp | GFP_USER| __GFP_NOWARN);
+ buffer = kzalloc(bytes, q->limits.bounce_gfp | GFP_USER| __GFP_NOWARN);
if (!buffer)
return -ENOMEM;

diff -r 5d97698a7bc5 -r 8305d08f6ecf drivers/ata/libata-scsi.c
--- a/drivers/ata/libata-scsi.c Wed Aug 25 13:44:33 2010 -0700
+++ b/drivers/ata/libata-scsi.c Wed Aug 25 13:44:33 2010 -0700
@@ -1140,7 +1140,7 @@ static int ata_scsi_dev_config(struct sc
ATA_DMA_PAD_SZ - 1);

/* configure draining */
- buf = kmalloc(ATAPI_MAX_DRAIN, q->bounce_gfp | GFP_KERNEL);
+ buf = kmalloc(ATAPI_MAX_DRAIN, q->limits.bounce_gfp | GFP_KERNEL);
if (!buf) {
ata_dev_printk(dev, KERN_ERR,
"drain buffer allocation failed
");
diff -r 5d97698a7bc5 -r 8305d08f6ecf fs/bio-integrity.c
--- a/fs/bio-integrity.c Wed Aug 25 13:44:33 2010 -0700
+++ b/fs/bio-integrity.c Wed Aug 25 13:44:33 2010 -0700
@@ -413,7 +413,7 @@ int bio_integrity_prep(struct bio *bio)

/* Allocate kernel buffer for protection data */
len = sectors * blk_integrity_tuple_size(bi);
- buf = kmalloc(len, GFP_NOIO | __GFP_NOFAIL | q->bounce_gfp);
+ buf = kmalloc(len, GFP_NOIO | __GFP_NOFAIL | q->limits.bounce_gfp);
if (unlikely(buf == NULL)) {
printk(KERN_ERR "could not allocate integrity buffer
");
return -EIO;
diff -r 5d97698a7bc5 -r 8305d08f6ecf fs/bio.c
--- a/fs/bio.c Wed Aug 25 13:44:33 2010 -0700
+++ b/fs/bio.c Wed Aug 25 13:44:33 2010 -0700
@@ -871,7 +871,7 @@ struct bio *bio_copy_user_iov(struct req

i++;
} else {
- page = alloc_page(q->bounce_gfp | gfp_mask);
+ page = alloc_page(q->limits.bounce_gfp | gfp_mask);
if (!page) {
ret = -ENOMEM;
break;
diff -r 5d97698a7bc5 -r 8305d08f6ecf include/linux/blkdev.h
--- a/include/linux/blkdev.h Wed Aug 25 13:44:33 2010 -0700
+++ b/include/linux/blkdev.h Wed Aug 25 13:44:33 2010 -0700
@@ -248,6 +248,11 @@ struct queue_limits {
unsigned char discard_misaligned;
unsigned char no_cluster;
signed char discard_zeroes_data;
+
+ /*
+ * queue needs bounce pages for pages above this limit
+ */
+ gfp_t bounce_gfp;
};

struct request_queue
@@ -298,11 +303,6 @@ struct request_queue
void *queuedata;

/*
- * queue needs bounce pages for pages above this limit
- */
- gfp_t bounce_gfp;
-
- /*
* various queue flags, see QUEUE_* below
*/
unsigned long queue_flags;
diff -r 5d97698a7bc5 -r 8305d08f6ecf mm/bounce.c
--- a/mm/bounce.c Wed Aug 25 13:44:33 2010 -0700
+++ b/mm/bounce.c Wed Aug 25 13:44:33 2010 -0700
@@ -207,7 +207,7 @@ static void __blk_queue_bounce(struct re

to = bio->bi_io_vec + i;

- to->bv_page = mempool_alloc(pool, q->bounce_gfp);
+ to->bv_page = mempool_alloc(pool, q->limits.bounce_gfp);
to->bv_len = from->bv_len;
to->bv_offset = from->bv_offset;
inc_zone_page_state(to->bv_page, NR_BOUNCE);
@@ -282,7 +282,7 @@ void blk_queue_bounce(struct request_que
* to or bigger than the highest pfn in the system -- in that case,
* don't waste time iterating over bio segments
*/
- if (!(q->bounce_gfp & GFP_DMA)) {
+ if (!(q->limits.bounce_gfp & GFP_DMA)) {
if (queue_bounce_pfn(q) >= blk_max_pfn)
return;
pool = page_pool;

--
dm-devel mailing list
dm-devel@redhat.com
https://www.redhat.com/mailman/listinfo/dm-devel
 

Thread Tools




All times are GMT. The time now is 09:28 PM.

VBulletin, Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO ©2007, Crawlability, Inc.
Copyright 2007 - 2008, www.linux-archive.org