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authorBoaz Harrosh <bharrosh@panasas.com>2009-11-03 16:46:00 +0200
committerBoaz Harrosh <bharrosh@panasas.com>2009-12-10 09:59:21 +0200
commit8ce9bdd1fbe962933736d7977e972972cd5d754c (patch)
tree7fd0047737fe618be909f84f7a2364309fd3e5bf /fs/exofs/ios.c
parentcae012d8532879544326fff5fa2ae22a6dfe8e23 (diff)
exofs: move osd.c to ios.c
If I do a "git mv" together with a massive code change and commit in one patch, git looses the rename and records a delete/new instead. This is bad because I want a rename recorded so later rebased/cherry-picked patches to the old name will work. Also the --follow is lost. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Diffstat (limited to 'fs/exofs/ios.c')
-rw-r--r--fs/exofs/ios.c125
1 files changed, 125 insertions, 0 deletions
diff --git a/fs/exofs/ios.c b/fs/exofs/ios.c
new file mode 100644
index 00000000000..4372542df28
--- /dev/null
+++ b/fs/exofs/ios.c
@@ -0,0 +1,125 @@
+/*
+ * Copyright (C) 2005, 2006
+ * Avishay Traeger (avishay@gmail.com)
+ * Copyright (C) 2008, 2009
+ * Boaz Harrosh <bharrosh@panasas.com>
+ *
+ * This file is part of exofs.
+ *
+ * exofs is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation. Since it is based on ext2, and the only
+ * valid version of GPL for the Linux kernel is version 2, the only valid
+ * version of GPL for exofs is version 2.
+ *
+ * exofs is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with exofs; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <scsi/scsi_device.h>
+#include <scsi/osd_sense.h>
+
+#include "exofs.h"
+
+int exofs_check_ok_resid(struct osd_request *or, u64 *in_resid, u64 *out_resid)
+{
+ struct osd_sense_info osi;
+ int ret = osd_req_decode_sense(or, &osi);
+
+ if (ret) { /* translate to Linux codes */
+ if (osi.additional_code == scsi_invalid_field_in_cdb) {
+ if (osi.cdb_field_offset == OSD_CFO_STARTING_BYTE)
+ ret = -EFAULT;
+ if (osi.cdb_field_offset == OSD_CFO_OBJECT_ID)
+ ret = -ENOENT;
+ else
+ ret = -EINVAL;
+ } else if (osi.additional_code == osd_quota_error)
+ ret = -ENOSPC;
+ else
+ ret = -EIO;
+ }
+
+ /* FIXME: should be include in osd_sense_info */
+ if (in_resid)
+ *in_resid = or->in.req ? or->in.req->resid_len : 0;
+
+ if (out_resid)
+ *out_resid = or->out.req ? or->out.req->resid_len : 0;
+
+ return ret;
+}
+
+void exofs_make_credential(u8 cred_a[OSD_CAP_LEN], const struct osd_obj_id *obj)
+{
+ osd_sec_init_nosec_doall_caps(cred_a, obj, false, true);
+}
+
+/*
+ * Perform a synchronous OSD operation.
+ */
+int exofs_sync_op(struct osd_request *or, int timeout, uint8_t *credential)
+{
+ int ret;
+
+ or->timeout = timeout;
+ ret = osd_finalize_request(or, 0, credential, NULL);
+ if (ret) {
+ EXOFS_DBGMSG("Faild to osd_finalize_request() => %d\n", ret);
+ return ret;
+ }
+
+ ret = osd_execute_request(or);
+
+ if (ret)
+ EXOFS_DBGMSG("osd_execute_request() => %d\n", ret);
+ /* osd_req_decode_sense(or, ret); */
+ return ret;
+}
+
+/*
+ * Perform an asynchronous OSD operation.
+ */
+int exofs_async_op(struct osd_request *or, osd_req_done_fn *async_done,
+ void *caller_context, u8 *cred)
+{
+ int ret;
+
+ ret = osd_finalize_request(or, 0, cred, NULL);
+ if (ret) {
+ EXOFS_DBGMSG("Faild to osd_finalize_request() => %d\n", ret);
+ return ret;
+ }
+
+ ret = osd_execute_request_async(or, async_done, caller_context);
+
+ if (ret)
+ EXOFS_DBGMSG("osd_execute_request_async() => %d\n", ret);
+ return ret;
+}
+
+int extract_attr_from_req(struct osd_request *or, struct osd_attr *attr)
+{
+ struct osd_attr cur_attr = {.attr_page = 0}; /* start with zeros */
+ void *iter = NULL;
+ int nelem;
+
+ do {
+ nelem = 1;
+ osd_req_decode_get_attr_list(or, &cur_attr, &nelem, &iter);
+ if ((cur_attr.attr_page == attr->attr_page) &&
+ (cur_attr.attr_id == attr->attr_id)) {
+ attr->len = cur_attr.len;
+ attr->val_ptr = cur_attr.val_ptr;
+ return 0;
+ }
+ } while (iter);
+
+ return -EIO;
+}