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| author | Yi Zou <yi.zou@intel.com> | 2009-07-29 17:05:40 -0700 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2009-08-22 17:52:10 -0500 |
| commit | 53fcfbbef569819706b880a502ff62e2852edfce (patch) | |
| tree | 4f59198dbb5b54a280a2f842d10d659bd32a02d1 | |
| parent | 537029f8e950776951ca2a3fe30121d5c05643d1 (diff) | |
| download | op-kernel-dev-53fcfbbef569819706b880a502ff62e2852edfce.zip op-kernel-dev-53fcfbbef569819706b880a502ff62e2852edfce.tar.gz | |
[SCSI] libfc: Remove page flags check for sglist
I don't believe this check is needed any more in the current kernel, which,
if I understand correctly, is for compound page where only the first page
is supposed to get ref-counted.
Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| -rw-r--r-- | drivers/scsi/libfc/fc_fcp.c | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c index 2069edf..7d5ffcb 100644 --- a/drivers/scsi/libfc/fc_fcp.c +++ b/drivers/scsi/libfc/fc_fcp.c @@ -507,33 +507,6 @@ static int fc_fcp_send_data(struct fc_fcp_pkt *fsp, struct fc_seq *seq, f_ctl = FC_FC_REL_OFF; WARN_ON(!seq); - /* - * If a get_page()/put_page() will fail, don't use sg lists - * in the fc_frame structure. - * - * The put_page() may be long after the I/O has completed - * in the case of FCoE, since the network driver does it - * via free_skb(). See the test in free_pages_check(). - * - * Test this case with 'dd </dev/zero >/dev/st0 bs=64k'. - */ - if (using_sg) { - for (sg = scsi_sglist(sc); sg; sg = sg_next(sg)) { - if (page_count(sg_page(sg)) == 0 || - (sg_page(sg)->flags & (1 << PG_lru | - 1 << PG_private | - 1 << PG_locked | - 1 << PG_active | - 1 << PG_slab | - 1 << PG_swapcache | - 1 << PG_writeback | - 1 << PG_reserved | - 1 << PG_buddy))) { - using_sg = 0; - break; - } - } - } sg = scsi_sglist(sc); while (remaining > 0 && sg) { |
