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[SCSI] st: remove struct scatterlist 

This removes the usage of struct scatterlist completely.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Kai Makisara <Kai.Makisara@kolumbus.fi>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
FUJITA Tomonori 2008-12-18 14:49:46 +09:00 committed by James Bottomley
parent 08c9583242
commit b3d59115ba
2 changed files with 2 additions and 7 deletions
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8
drivers/scsi/st.c
View File

@ -3744,7 +3744,7 @@ static long st_compat_ioctl(struct file *file, unsigned int cmd, unsigned long a
static struct st_buffer *
new_tape_buffer(int from_initialization, int need_dma, int max_sg)
{
int i, got = 0;
int got = 0;
gfp_t priority;
struct st_buffer *tb;
@ -3753,10 +3753,7 @@ static struct st_buffer *
else
priority = GFP_KERNEL;
i = sizeof(struct st_buffer) +
(max_sg - 1) * sizeof(struct scatterlist);
tb = kzalloc(i, priority);
tb = kzalloc(sizeof(struct st_buffer), priority);
if (!tb) {
printk(KERN_NOTICE "st: Can't allocate new tape buffer.\n");
return NULL;
@ -3766,7 +3763,6 @@ static struct st_buffer *
tb->dma = need_dma;
tb->buffer_size = got;
sg_init_table(tb->sg, max_sg);
tb->reserved_pages = kzalloc(max_sg * sizeof(struct page *), priority);
if (!tb->reserved_pages) {

1
drivers/scsi/st.h
View File

@ -54,7 +54,6 @@ struct st_buffer {
unsigned short orig_frp_segs; /* number of segments allocated at first try */
unsigned short frp_segs; /* number of buffer segments */
unsigned int frp_sg_current; /* driver buffer length currently in s/g list */
struct scatterlist sg[1]; /* MUST BE last item */
};
/* The tape mode definition */