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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-07-04 09:45:31 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-07-04 09:45:31 -0700 |
| commit | 59107c6525c0d325649eae807905d34772d5a664 (patch) | |
| tree | 098f40e08125695a1dca3ca7a2974fc2d4f71fad /drivers | |
| parent | 746a99a5af60ee676afa2ba469ccd1373493c7e7 (diff) | |
| parent | ab0fd1debe730ec9998678a0c53caefbd121ed10 (diff) | |
| download | op-kernel-dev-59107c6525c0d325649eae807905d34772d5a664.zip op-kernel-dev-59107c6525c0d325649eae807905d34772d5a664.tar.gz | |
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
block: don't merge requests of different failfast settings
cciss: Ignore stale commands after reboot
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/block/cciss.c | 15 | ||||
| -rw-r--r-- | drivers/block/cciss_cmd.h | 1 |
2 files changed, 14 insertions, 2 deletions
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index c7a527c..65a0655 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -226,8 +226,18 @@ static inline void addQ(struct hlist_head *list, CommandList_struct *c) static inline void removeQ(CommandList_struct *c) { - if (WARN_ON(hlist_unhashed(&c->list))) + /* + * After kexec/dump some commands might still + * be in flight, which the firmware will try + * to complete. Resetting the firmware doesn't work + * with old fw revisions, so we have to mark + * them off as 'stale' to prevent the driver from + * falling over. + */ + if (WARN_ON(hlist_unhashed(&c->list))) { + c->cmd_type = CMD_MSG_STALE; return; + } hlist_del_init(&c->list); } @@ -4246,7 +4256,8 @@ static void fail_all_cmds(unsigned long ctlr) while (!hlist_empty(&h->cmpQ)) { c = hlist_entry(h->cmpQ.first, CommandList_struct, list); removeQ(c); - c->err_info->CommandStatus = CMD_HARDWARE_ERR; + if (c->cmd_type != CMD_MSG_STALE) + c->err_info->CommandStatus = CMD_HARDWARE_ERR; if (c->cmd_type == CMD_RWREQ) { complete_command(h, c, 0); } else if (c->cmd_type == CMD_IOCTL_PEND) diff --git a/drivers/block/cciss_cmd.h b/drivers/block/cciss_cmd.h index cd665b0..dbaed1e 100644 --- a/drivers/block/cciss_cmd.h +++ b/drivers/block/cciss_cmd.h @@ -274,6 +274,7 @@ typedef struct _ErrorInfo_struct { #define CMD_SCSI 0x03 #define CMD_MSG_DONE 0x04 #define CMD_MSG_TIMEOUT 0x05 +#define CMD_MSG_STALE 0xff /* This structure needs to be divisible by 8 for new * indexing method. |
