diff options
| author | Mike Miller <mike.miller@hp.com> | 2005-09-13 01:25:21 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-09-13 08:22:29 -0700 |
| commit | 1f8ef3806c40e74733f45f436d44b3d8e9a2fa48 (patch) | |
| tree | cf580823a617be7ef3654d7cd26f3fd048db823c /drivers/block | |
| parent | 9dc7a86e85593c834bb930f5d5aba3a19ee7a350 (diff) | |
| download | blackbird-op-linux-1f8ef3806c40e74733f45f436d44b3d8e9a2fa48.tar.gz blackbird-op-linux-1f8ef3806c40e74733f45f436d44b3d8e9a2fa48.zip | |
[PATCH] cciss: busy_initializing flag
This patch adds a flag called busy_initializing. If there are multiple
controllers in a server AND the HP agents are running it's possible the agents
may try to poll a card that is still initializing if the driver is removed and
then added again.
Signed-off-by: Don Brace <dab@hp.com>
Signed-off-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/cciss.c | 8 | ||||
| -rw-r--r-- | drivers/block/cciss.h | 1 |
2 files changed, 9 insertions, 0 deletions
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 4a49d7972126..8bcd6c498c60 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -468,6 +468,9 @@ static int cciss_open(struct inode *inode, struct file *filep) printk(KERN_DEBUG "cciss_open %s\n", inode->i_bdev->bd_disk->disk_name); #endif /* CCISS_DEBUG */ + if (host->busy_initializing) + return -EBUSY; + /* * Root is allowed to open raw volume zero even if it's not configured * so array config can still work. Root is also allowed to open any @@ -2742,6 +2745,9 @@ static int __devinit cciss_init_one(struct pci_dev *pdev, i = alloc_cciss_hba(); if(i < 0) return (-1); + + hba[i]->busy_initializing = 1; + if (cciss_pci_init(hba[i], pdev) != 0) goto clean1; @@ -2864,6 +2870,7 @@ static int __devinit cciss_init_one(struct pci_dev *pdev, add_disk(disk); } + hba[i]->busy_initializing = 0; return(1); clean4: @@ -2884,6 +2891,7 @@ clean2: clean1: release_io_mem(hba[i]); free_hba(i); + hba[i]->busy_initializing = 0; return(-1); } diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h index 566587d0a500..11ee83504b38 100644 --- a/drivers/block/cciss.h +++ b/drivers/block/cciss.h @@ -83,6 +83,7 @@ struct ctlr_info int nr_allocs; int nr_frees; int busy_configuring; + int busy_initializing; /* This element holds the zero based queue number of the last * queue to be started. It is used for fairness. |
