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| author | Boaz Harrosh <bharrosh@panasas.com> | 2010-10-19 14:20:31 +0200 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2010-10-26 10:42:30 -0500 |
| commit | ec6a0a41b57feb54b3830918a8fb07147c2ee778 (patch) | |
| tree | a0c3620b4ca600faee6270985c84ef054cbb6a58 | |
| parent | 391cbf46f25ccbeb1a0ffd76c76765ffc9a6fb22 (diff) | |
| download | op-kernel-dev-ec6a0a41b57feb54b3830918a8fb07147c2ee778.zip op-kernel-dev-ec6a0a41b57feb54b3830918a8fb07147c2ee778.tar.gz | |
[SCSI] libosd: Fix bug in attr_page handling
The _osd_req_finalize_attr_page was off by a mile, when trying to
append the enc_get_attr segment instead of the proper set_attr segment.
Also properly support when we don't have any attribute to set while
getting a full page. And when clearing an attribute by setting it's
size to zero.
Reported-by: John Chandy <john.chandy@uconn.edu>
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| -rw-r--r-- | drivers/scsi/osd/osd_initiator.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/scsi/osd/osd_initiator.c b/drivers/scsi/osd/osd_initiator.c index e88bbdd..771ab12 100644 --- a/drivers/scsi/osd/osd_initiator.c +++ b/drivers/scsi/osd/osd_initiator.c @@ -1218,17 +1218,18 @@ int osd_req_add_get_attr_page(struct osd_request *or, or->get_attr.buff = attar_page; or->get_attr.total_bytes = max_page_len; - or->set_attr.buff = set_one_attr->val_ptr; - or->set_attr.total_bytes = set_one_attr->len; - cdbh->attrs_page.get_attr_page = cpu_to_be32(page_id); cdbh->attrs_page.get_attr_alloc_length = cpu_to_be32(max_page_len); - /* ocdb->attrs_page.get_attr_offset; */ + + if (!set_one_attr || !set_one_attr->attr_page) + return 0; /* The set is optional */ + + or->set_attr.buff = set_one_attr->val_ptr; + or->set_attr.total_bytes = set_one_attr->len; cdbh->attrs_page.set_attr_page = cpu_to_be32(set_one_attr->attr_page); cdbh->attrs_page.set_attr_id = cpu_to_be32(set_one_attr->attr_id); cdbh->attrs_page.set_attr_length = cpu_to_be32(set_one_attr->len); - /* ocdb->attrs_page.set_attr_offset; */ return 0; } EXPORT_SYMBOL(osd_req_add_get_attr_page); @@ -1248,11 +1249,14 @@ static int _osd_req_finalize_attr_page(struct osd_request *or) if (ret) return ret; + if (or->set_attr.total_bytes == 0) + return 0; + /* set one value */ cdbh->attrs_page.set_attr_offset = osd_req_encode_offset(or, or->out.total_bytes, &out_padding); - ret = _req_append_segment(or, out_padding, &or->enc_get_attr, NULL, + ret = _req_append_segment(or, out_padding, &or->set_attr, NULL, &or->out); return ret; } |
