/* * Copyright (C) 2008 Oracle. All rights reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public * License v2 as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public * License along with this program; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 021110-1307, USA. */ #ifndef __BTRFS_LOCKING_ #define __BTRFS_LOCKING_ #define BTRFS_WRITE_LOCK 1 #define BTRFS_READ_LOCK 2 #define BTRFS_WRITE_LOCK_BLOCKING 3 #define BTRFS_READ_LOCK_BLOCKING 4 void btrfs_tree_lock(struct extent_buffer *eb); void btrfs_tree_unlock(struct extent_buffer *eb); void btrfs_tree_read_lock(struct extent_buffer *eb); void btrfs_tree_read_unlock(struct extent_buffer *eb); void btrfs_tree_read_unlock_blocking(struct extent_buffer *eb); void btrfs_set_lock_blocking_rw(struct extent_buffer *eb, int rw); void btrfs_clear_lock_blocking_rw(struct extent_buffer *eb, int rw); void btrfs_assert_tree_locked(struct extent_buffer *eb); int btrfs_try_tree_read_lock(struct extent_buffer *eb); int btrfs_try_tree_write_lock(struct extent_buffer *eb); int btrfs_tree_read_lock_atomic(struct extent_buffer *eb); static inline void btrfs_tree_unlock_rw(struct extent_buffer *eb, int rw) { if (rw == BTRFS_WRITE_LOCK || rw == BTRFS_WRITE_LOCK_BLOCKING) btrfs_tree_unlock(eb); else if (rw == BTRFS_READ_LOCK_BLOCKING) btrfs_tree_read_unlock_blocking(eb); else if (rw == BTRFS_READ_LOCK) btrfs_tree_read_unlock(eb); else BUG(); } static inline void btrfs_set_lock_blocking(struct extent_buffer *eb) { btrfs_set_lock_blocking_rw(eb, BTRFS_WRITE_LOCK); } static inline void btrfs_clear_lock_blocking(struct extent_buffer *eb) { btrfs_clear_lock_blocking_rw(eb, BTRFS_WRITE_LOCK_BLOCKING); } #endif lude/scsi/scsi_transport_spi.h?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>diff
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authorGiovanni Cabiddu <giovanni.cabiddu@intel.com>2016-12-22 15:00:12 +0000
committerHerbert Xu <herbert@gondor.apana.org.au>2017-02-02 21:54:52 +0800
commit3484ecbe0e9deb94afb0b9b6172d77e98eb72b94 (patch)
tree4d4be0d20d4946c51ef47a882d78c9934a219c0e /include/scsi/scsi_transport_spi.h
parent11e3b725cfc282efe9d4a354153e99d86a16af08 (diff)
crypto: qat - fix bar discovery for c62x
Some accelerators of the c62x series have only two bars. This patch skips BAR0 if the accelerator does not have it. Cc: <stable@vger.kernel.org> Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/scsi/scsi_transport_spi.h')