Commit 602cbe91 authored by David Sterba's avatar David Sterba
Browse files

btrfs: move cond_wake_up functions out of ctree



The file ctree.h serves as a header for everything and has become quite
bloated. Split some helpers that are generic and create a new file that
should be the catch-all for code that's not btrfs-specific.

Reviewed-by: default avatarJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent d2979aa2
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+1 −0
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@@ -18,6 +18,7 @@
#include <linux/sched/mm.h>
#include <linux/log2.h>
#include <crypto/hash.h>
#include "misc.h"
#include "ctree.h"
#include "disk-io.h"
#include "transaction.h"
+0 −22
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@@ -3517,26 +3517,4 @@ static inline int btrfs_is_testing(struct btrfs_fs_info *fs_info)
}
#endif

static inline void cond_wake_up(struct wait_queue_head *wq)
{
	/*
	 * This implies a full smp_mb barrier, see comments for
	 * waitqueue_active why.
	 */
	if (wq_has_sleeper(wq))
		wake_up(wq);
}

static inline void cond_wake_up_nomb(struct wait_queue_head *wq)
{
	/*
	 * Special case for conditional wakeup where the barrier required for
	 * waitqueue_active is implied by some of the preceding code. Eg. one
	 * of such atomic operations (atomic_dec_and_return, ...), or a
	 * unlock/lock sequence, etc.
	 */
	if (waitqueue_active(wq))
		wake_up(wq);
}

#endif
+1 −0
Original line number Diff line number Diff line
@@ -6,6 +6,7 @@

#include <linux/slab.h>
#include <linux/iversion.h>
#include "misc.h"
#include "delayed-inode.h"
#include "disk-io.h"
#include "transaction.h"
+1 −0
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@@ -9,6 +9,7 @@
#include <linux/blkdev.h>
#include <linux/kthread.h>
#include <linux/math64.h>
#include "misc.h"
#include "ctree.h"
#include "extent_map.h"
#include "disk-io.h"
+1 −0
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@@ -16,6 +16,7 @@
#include <linux/percpu_counter.h>
#include <linux/lockdep.h>
#include <linux/crc32c.h>
#include "misc.h"
#include "tree-log.h"
#include "disk-io.h"
#include "print-tree.h"
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