From: "Stephen M. Cameron" <scameron@beardog.cce.hp.com>
To: akpm@linux-foundation.org, axboe@kernel.dk
Cc: linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org,
andrew.patterson@hp.com, mikem@beardog.cce.hp.com,
scameron@beardog.cce.hp.com
Subject: [PATCH 15/20] cciss: Don't check h->busy_initializing in cciss_open().
Date: Thu, 17 Sep 2009 13:48:05 -0500 [thread overview]
Message-ID: <20090917184805.15105.58449.stgit@beardog.cce.hp.com> (raw)
In-Reply-To: <20090917184310.15105.43508.stgit@beardog.cce.hp.com>
Don't check h->busy_initializing in cciss_open(). Open won't be
called before things are ready, but h->busy_initializing won't be
unset until after the initial rebuild_lun_table is finished. But,
to read the partitions, cciss_open will be called for each logical
drive during rebuild_lun_table. If cciss_open checks h->busy_initializing,
then the reading of the partition information during the initial
rebuild_lun_table will fail, which is especially bad news if it
happens to be your boot device.
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
---
drivers/block/cciss.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 56eeb68..0ff665e 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -829,7 +829,7 @@ static int cciss_open(struct block_device *bdev, fmode_t mode)
printk(KERN_DEBUG "cciss_open %s\n", bdev->bd_disk->disk_name);
#endif /* CCISS_DEBUG */
- if (host->busy_initializing || drv->busy_configuring)
+ if (drv->busy_configuring)
return -EBUSY;
/*
* Root is allowed to open raw volume zero even if it's not configured
next prev parent reply other threads:[~2009-09-17 18:47 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-17 18:46 [PATCH 00/20] cciss: fix scan_thread, sysfs stuff, dynamically allocate per drive structure Stephen M. Cameron
2009-09-17 18:46 ` [PATCH 01/20] cciss: Remove sysfs entries for logical drives on driver cleanup Stephen M. Cameron
2009-09-17 18:46 ` [PATCH 02/20] cciss: Use one scan thread per controller and fix hang during rmmod Stephen M. Cameron
2009-09-17 18:47 ` [PATCH 03/20] cciss: Allow triggering of rescan of logical drive topology via sysfs entry Stephen M. Cameron
2009-09-17 18:47 ` [PATCH 04/20] cciss: Remove some unused code in rebuild_lun_table() Stephen M. Cameron
2009-09-17 18:47 ` [PATCH 05/20] cciss: Dynamically allocate struct device for each logical drive as needed Stephen M. Cameron
2009-09-17 18:47 ` [PATCH 06/20] cciss: Rearrange logical drive sysfs code to make the "changing a disk" path work Stephen M. Cameron
2009-09-17 18:47 ` [PATCH 07/20] cciss: Handle failure of blk_init_queue gracefully in cciss_add_disk Stephen M. Cameron
2009-09-17 18:47 ` [PATCH 08/20] cciss: Handle cases when cciss_add_disk fails Stephen M. Cameron
2009-09-17 18:47 ` [PATCH 09/20] cciss: Handle special case for sysfs attributes of the first logical drive Stephen M. Cameron
2009-09-17 18:47 ` [PATCH 10/20] cciss: Clear all sysfs-exposed data for deleted logical drives Stephen M. Cameron
2009-09-17 18:47 ` [PATCH 11/20] cciss: Fix usage_count check in rebuild_lun_table when triggered via sysfs Stephen M. Cameron
2009-09-17 18:47 ` [PATCH 12/20] cciss: Fix excessive gendisk freeing bug on driver unload Stephen M. Cameron
2009-09-17 18:47 ` [PATCH 13/20] cciss: Silence noisy per-disk messages output by cciss_read_capacity Stephen M. Cameron
2009-09-17 18:48 ` [PATCH 14/20] cciss: Preserve all 8 bytes of LUN ID for logical drives Stephen M. Cameron
2009-09-17 18:48 ` Stephen M. Cameron [this message]
2009-09-17 18:48 ` [PATCH 16/20] cciss: Add lunid attribute to each logical drive in /sys Stephen M. Cameron
2009-09-17 18:48 ` [PATCH 17/20] cciss: fix some magic numbers in the raid-level decoding Stephen M. Cameron
2009-09-17 18:48 ` [PATCH 18/20] cciss: Add a "raid_level" attribute to each logical drive in /sys Stephen M. Cameron
2009-09-17 18:48 ` [PATCH 19/20] cciss: Add usage_count " Stephen M. Cameron
2009-09-17 18:48 ` [PATCH 20/20] cciss: Dynamically allocate the drive_info_struct for each logical drive Stephen M. Cameron
2009-09-18 20:14 ` [PATCH 00/20] cciss: fix scan_thread, sysfs stuff, dynamically allocate per drive structure Jens Axboe
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