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| author | Jens Axboe <jens.axboe@oracle.com> | 2007-10-24 11:20:47 +0200 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2007-10-24 11:20:47 +0200 |
| commit | 642f149031d70415d9318b919d50b71e4724adbd (patch) | |
| tree | e792ad29dedffc6756d55e9d63e18ada35515b4b /drivers/scsi/st.c | |
| parent | bd6dee6f30a0f6943df190b387b5f8fe98a848f3 (diff) | |
| download | linux-642f149031d70415d9318b919d50b71e4724adbd.tar.gz linux-642f149031d70415d9318b919d50b71e4724adbd.tar.bz2 linux-642f149031d70415d9318b919d50b71e4724adbd.zip | |
SG: Change sg_set_page() to take length and offset argument
Most drivers need to set length and offset as well, so may as well fold
those three lines into one.
Add sg_assign_page() for those two locations that only needed to set
the page, where the offset/length is set outside of the function context.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'drivers/scsi/st.c')
| -rw-r--r-- | drivers/scsi/st.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index ce69b9efc102..98dfd6ea209c 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -3797,13 +3797,11 @@ static void buf_to_sg(struct st_buffer *STbp, unsigned int length) sg = &(STbp->sg[0]); frp = STbp->frp; for (i=count=0; count < length; i++) { - sg_set_page(&sg[i], frp[i].page); if (length - count > frp[i].length) - sg[i].length = frp[i].length; + sg_set_page(&sg[i], frp[i].page, frp[i].length, 0); else - sg[i].length = length - count; + sg_set_page(&sg[i], frp[i].page, length - count, 0); count += sg[i].length; - sg[i].offset = 0; } STbp->sg_segs = i; STbp->frp_sg_current = length; @@ -4446,15 +4444,13 @@ static int sgl_map_user_pages(struct scatterlist *sgl, const unsigned int max_pa } /* Populate the scatter/gather list */ - sg_set_page(&sgl[0], pages[0]); - sgl[0].offset = uaddr & ~PAGE_MASK; + sg_set_page(&sgl[0], pages[0], 0, uaddr & ~PAGE_MASK); if (nr_pages > 1) { sgl[0].length = PAGE_SIZE - sgl[0].offset; count -= sgl[0].length; for (i=1; i < nr_pages ; i++) { - sg_set_page(&sgl[i], pages[i]);; - sgl[i].offset = 0; - sgl[i].length = count < PAGE_SIZE ? count : PAGE_SIZE; + sg_set_page(&sgl[i], pages[i], + count < PAGE_SIZE ? count : PAGE_SIZE, 0);; count -= PAGE_SIZE; } } |