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author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-01-06 16:20:49 (GMT) |
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committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-01-06 16:20:49 (GMT) |
commit | 5b31f855f10d0053e738baa6d91fb6a3fad35119 (patch) | |
tree | bdd8125faf6e4b8baf37d86270389b4d6f62f37d /drivers/ide/ide-floppy.c | |
parent | efe0397eef544ac4bcca23d39aa8d5db154952e0 (diff) | |
download | linux-5b31f855f10d0053e738baa6d91fb6a3fad35119.tar.xz |
ide: use lock bitops for ports serialization (v2)
* Add ->host_busy field to struct ide_host and use it's first bit
together with lock bitops to provide new ports serialization method.
* Convert core IDE code to use new ide_[un]lock_host() helpers.
This removes the need for taking hwgroup->lock if host is already
busy on serialized hosts and makes it possible to merge ide_hwgroup_t
into ide_hwif_t (done in the later patch).
* Remove no longer needed ide_hwgroup_t.busy and ide_[un]lock_hwgroup().
* Update do_ide_request() documentation.
v2:
* ide_release_lock() should be called inside IDE_HFLAG_SERIALIZE check.
* Add ide_hwif_t.busy flag and ide_[un]lock_port() for serializing
devices on a port.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/ide-floppy.c')
0 files changed, 0 insertions, 0 deletions