| commit | 005a5a06a6dd13a0ca3f2c6a0218e8d94ed36d8a | [log] [tgz] |
|---|---|---|
| author | Jeff Garzik <jgarzik@pobox.com> | Sun Oct 30 23:31:48 2005 -0500 |
| committer | Jeff Garzik <jgarzik@pobox.com> | Sun Oct 30 23:31:48 2005 -0500 |
| tree | 5b270817df4bc9661365d789d51c04f3774c3ddd | |
| parent | e533825447dcb60a82b7cc9d73d06423c849b9a2 [diff] |
[libata] locking rewrite (== fix) A lot of power packed into a little patch. This change eliminates the sharing between our controller-wide spinlock and the SCSI core's Scsi_Host lock. As the locking in libata was already highly compartmentalized, always referencing our own lock, and never scsi_host::host_lock. As a side effect, this change eliminates a deadlock from calling scsi_finish_command() while inside our spinlock.