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| author | Ewan D. Milne <emilne@redhat.com> | 2014-12-04 17:49:26 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2014-12-15 13:34:26 +0100 |
| commit | 4bc6b63482a069baa2eeaba3e4a0b5df75263dc5 (patch) | |
| tree | 91459de2c97b39f534c43fddd19ffdcf421656be /drivers/scsi/scsi_debug.c | |
| parent | scsi_debug: improve driver description in Kconfig (diff) | |
| download | linux-4bc6b63482a069baa2eeaba3e4a0b5df75263dc5.tar.xz linux-4bc6b63482a069baa2eeaba3e4a0b5df75263dc5.zip | |
scsi_debug: take sdebug_host_list_lock when changing capacity
All other traversals of the sdebug_host_list take the lock.
Signed-off-by: Ewan D. Milne <emilne@redhat.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/scsi/scsi_debug.c')
| -rw-r--r-- | drivers/scsi/scsi_debug.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index 2e32a4c09fbc..0d0e0593e3c5 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -4438,6 +4438,7 @@ static ssize_t virtual_gb_store(struct device_driver *ddp, const char *buf, struct sdebug_host_info *sdhp; struct sdebug_dev_info *dp; + spin_lock(&sdebug_host_list_lock); list_for_each_entry(sdhp, &sdebug_host_list, host_list) { list_for_each_entry(dp, &sdhp->dev_info_list, @@ -4446,6 +4447,7 @@ static ssize_t virtual_gb_store(struct device_driver *ddp, const char *buf, dp->uas_bm); } } + spin_unlock(&sdebug_host_list_lock); } return count; } |