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authorChristoph Hellwig <hch@lst.de>2005-06-19 07:43:56 -0400
committerJames Bottomley <jejb@titanic.(none)>2005-06-26 13:20:42 -0400
commit937abeaadf1b00252690f9de35b9df13feb0afd7 (patch)
tree4cec1bff9dc4bc25c1503df5c96bf02f9fbf7013 /drivers/scsi/scsi_error.c
parent3111b0d1646b3e1891dc08112d087aed2146fafe (diff)
[SCSI] use list_for_each_entry_safe in scsi_error.c
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/scsi_error.c')
-rw-r--r--drivers/scsi/scsi_error.c57
1 files changed, 19 insertions, 38 deletions
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index e289b3238539..0fc8b48f052b 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -662,12 +662,10 @@ static void scsi_eh_finish_cmd(struct scsi_cmnd *scmd,
662static int scsi_eh_get_sense(struct list_head *work_q, 662static int scsi_eh_get_sense(struct list_head *work_q,
663 struct list_head *done_q) 663 struct list_head *done_q)
664{ 664{
665 struct list_head *lh, *lh_sf; 665 struct scsi_cmnd *scmd, *next;
666 struct scsi_cmnd *scmd;
667 int rtn; 666 int rtn;
668 667
669 list_for_each_safe(lh, lh_sf, work_q) { 668 list_for_each_entry_safe(scmd, next, work_q, eh_entry) {
670 scmd = list_entry(lh, struct scsi_cmnd, eh_entry);
671 if ((scmd->eh_eflags & SCSI_EH_CANCEL_CMD) || 669 if ((scmd->eh_eflags & SCSI_EH_CANCEL_CMD) ||
672 SCSI_SENSE_VALID(scmd)) 670 SCSI_SENSE_VALID(scmd))
673 continue; 671 continue;
@@ -798,12 +796,10 @@ retry_tur:
798static int scsi_eh_abort_cmds(struct list_head *work_q, 796static int scsi_eh_abort_cmds(struct list_head *work_q,
799 struct list_head *done_q) 797 struct list_head *done_q)
800{ 798{
801 struct list_head *lh, *lh_sf; 799 struct scsi_cmnd *scmd, *next;
802 struct scsi_cmnd *scmd;
803 int rtn; 800 int rtn;
804 801
805 list_for_each_safe(lh, lh_sf, work_q) { 802 list_for_each_entry_safe(scmd, next, work_q, eh_entry) {
806 scmd = list_entry(lh, struct scsi_cmnd, eh_entry);
807 if (!(scmd->eh_eflags & SCSI_EH_CANCEL_CMD)) 803 if (!(scmd->eh_eflags & SCSI_EH_CANCEL_CMD))
808 continue; 804 continue;
809 SCSI_LOG_ERROR_RECOVERY(3, printk("%s: aborting cmd:" 805 SCSI_LOG_ERROR_RECOVERY(3, printk("%s: aborting cmd:"
@@ -918,8 +914,7 @@ static int scsi_eh_stu(struct Scsi_Host *shost,
918 struct list_head *work_q, 914 struct list_head *work_q,
919 struct list_head *done_q) 915 struct list_head *done_q)
920{ 916{
921 struct list_head *lh, *lh_sf; 917 struct scsi_cmnd *scmd, *stu_scmd, *next;
922 struct scsi_cmnd *scmd, *stu_scmd;
923 struct scsi_device *sdev; 918 struct scsi_device *sdev;
924 919
925 shost_for_each_device(sdev, shost) { 920 shost_for_each_device(sdev, shost) {
@@ -940,8 +935,8 @@ static int scsi_eh_stu(struct Scsi_Host *shost,
940 if (!scsi_eh_try_stu(stu_scmd)) { 935 if (!scsi_eh_try_stu(stu_scmd)) {
941 if (!scsi_device_online(sdev) || 936 if (!scsi_device_online(sdev) ||
942 !scsi_eh_tur(stu_scmd)) { 937 !scsi_eh_tur(stu_scmd)) {
943 list_for_each_safe(lh, lh_sf, work_q) { 938 list_for_each_entry_safe(scmd, next,
944 scmd = list_entry(lh, struct scsi_cmnd, eh_entry); 939 work_q, eh_entry) {
945 if (scmd->device == sdev) 940 if (scmd->device == sdev)
946 scsi_eh_finish_cmd(scmd, done_q); 941 scsi_eh_finish_cmd(scmd, done_q);
947 } 942 }
@@ -972,8 +967,7 @@ static int scsi_eh_bus_device_reset(struct Scsi_Host *shost,
972 struct list_head *work_q, 967 struct list_head *work_q,
973 struct list_head *done_q) 968 struct list_head *done_q)
974{ 969{
975 struct list_head *lh, *lh_sf; 970 struct scsi_cmnd *scmd, *bdr_scmd, *next;
976 struct scsi_cmnd *scmd, *bdr_scmd;
977 struct scsi_device *sdev; 971 struct scsi_device *sdev;
978 int rtn; 972 int rtn;
979 973
@@ -995,11 +989,8 @@ static int scsi_eh_bus_device_reset(struct Scsi_Host *shost,
995 if (rtn == SUCCESS) { 989 if (rtn == SUCCESS) {
996 if (!scsi_device_online(sdev) || 990 if (!scsi_device_online(sdev) ||
997 !scsi_eh_tur(bdr_scmd)) { 991 !scsi_eh_tur(bdr_scmd)) {
998 list_for_each_safe(lh, lh_sf, 992 list_for_each_entry_safe(scmd, next,
999 work_q) { 993 work_q, eh_entry) {
1000 scmd = list_entry(lh, struct
1001 scsi_cmnd,
1002 eh_entry);
1003 if (scmd->device == sdev) 994 if (scmd->device == sdev)
1004 scsi_eh_finish_cmd(scmd, 995 scsi_eh_finish_cmd(scmd,
1005 done_q); 996 done_q);
@@ -1082,9 +1073,7 @@ static int scsi_eh_bus_reset(struct Scsi_Host *shost,
1082 struct list_head *work_q, 1073 struct list_head *work_q,
1083 struct list_head *done_q) 1074 struct list_head *done_q)
1084{ 1075{
1085 struct list_head *lh, *lh_sf; 1076 struct scsi_cmnd *scmd, *chan_scmd, *next;
1086 struct scsi_cmnd *scmd;
1087 struct scsi_cmnd *chan_scmd;
1088 unsigned int channel; 1077 unsigned int channel;
1089 int rtn; 1078 int rtn;
1090 1079
@@ -1115,9 +1104,7 @@ static int scsi_eh_bus_reset(struct Scsi_Host *shost,
1115 channel)); 1104 channel));
1116 rtn = scsi_try_bus_reset(chan_scmd); 1105 rtn = scsi_try_bus_reset(chan_scmd);
1117 if (rtn == SUCCESS) { 1106 if (rtn == SUCCESS) {
1118 list_for_each_safe(lh, lh_sf, work_q) { 1107 list_for_each_entry_safe(scmd, next, work_q, eh_entry) {
1119 scmd = list_entry(lh, struct scsi_cmnd,
1120 eh_entry);
1121 if (channel == scmd->device->channel) 1108 if (channel == scmd->device->channel)
1122 if (!scsi_device_online(scmd->device) || 1109 if (!scsi_device_online(scmd->device) ||
1123 !scsi_eh_tur(scmd)) 1110 !scsi_eh_tur(scmd))
@@ -1142,9 +1129,8 @@ static int scsi_eh_bus_reset(struct Scsi_Host *shost,
1142static int scsi_eh_host_reset(struct list_head *work_q, 1129static int scsi_eh_host_reset(struct list_head *work_q,
1143 struct list_head *done_q) 1130 struct list_head *done_q)
1144{ 1131{
1132 struct scsi_cmnd *scmd, *next;
1145 int rtn; 1133 int rtn;
1146 struct list_head *lh, *lh_sf;
1147 struct scsi_cmnd *scmd;
1148 1134
1149 if (!list_empty(work_q)) { 1135 if (!list_empty(work_q)) {
1150 scmd = list_entry(work_q->next, 1136 scmd = list_entry(work_q->next,
@@ -1155,8 +1141,7 @@ static int scsi_eh_host_reset(struct list_head *work_q,
1155 1141
1156 rtn = scsi_try_host_reset(scmd); 1142 rtn = scsi_try_host_reset(scmd);
1157 if (rtn == SUCCESS) { 1143 if (rtn == SUCCESS) {
1158 list_for_each_safe(lh, lh_sf, work_q) { 1144 list_for_each_entry_safe(scmd, next, work_q, eh_entry) {
1159 scmd = list_entry(lh, struct scsi_cmnd, eh_entry);
1160 if (!scsi_device_online(scmd->device) || 1145 if (!scsi_device_online(scmd->device) ||
1161 (!scsi_eh_try_stu(scmd) && !scsi_eh_tur(scmd)) || 1146 (!scsi_eh_try_stu(scmd) && !scsi_eh_tur(scmd)) ||
1162 !scsi_eh_tur(scmd)) 1147 !scsi_eh_tur(scmd))
@@ -1180,11 +1165,9 @@ static int scsi_eh_host_reset(struct list_head *work_q,
1180static void scsi_eh_offline_sdevs(struct list_head *work_q, 1165static void scsi_eh_offline_sdevs(struct list_head *work_q,
1181 struct list_head *done_q) 1166 struct list_head *done_q)
1182{ 1167{
1183 struct list_head *lh, *lh_sf; 1168 struct scsi_cmnd *scmd, *next;
1184 struct scsi_cmnd *scmd;
1185 1169
1186 list_for_each_safe(lh, lh_sf, work_q) { 1170 list_for_each_entry_safe(scmd, next, work_q, eh_entry) {
1187 scmd = list_entry(lh, struct scsi_cmnd, eh_entry);
1188 printk(KERN_INFO "scsi: Device offlined - not" 1171 printk(KERN_INFO "scsi: Device offlined - not"
1189 " ready after error recovery: host" 1172 " ready after error recovery: host"
1190 " %d channel %d id %d lun %d\n", 1173 " %d channel %d id %d lun %d\n",
@@ -1512,12 +1495,10 @@ static void scsi_eh_ready_devs(struct Scsi_Host *shost,
1512 **/ 1495 **/
1513static void scsi_eh_flush_done_q(struct list_head *done_q) 1496static void scsi_eh_flush_done_q(struct list_head *done_q)
1514{ 1497{
1515 struct list_head *lh, *lh_sf; 1498 struct scsi_cmnd *scmd, *next;
1516 struct scsi_cmnd *scmd;
1517 1499
1518 list_for_each_safe(lh, lh_sf, done_q) { 1500 list_for_each_entry_safe(scmd, next, done_q, eh_entry) {
1519 scmd = list_entry(lh, struct scsi_cmnd, eh_entry); 1501 list_del_init(&scmd->eh_entry);
1520 list_del_init(lh);
1521 if (scsi_device_online(scmd->device) && 1502 if (scsi_device_online(scmd->device) &&
1522 !blk_noretry_request(scmd->request) && 1503 !blk_noretry_request(scmd->request) &&
1523 (++scmd->retries < scmd->allowed)) { 1504 (++scmd->retries < scmd->allowed)) {