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Message-Id: <1337915422-24988-1-git-send-email-asias@redhat.com>
Date: Fri, 25 May 2012 11:10:21 +0800
From: Asias He <asias@...hat.com>
To: linux-kernel@...r.kernel.org, linux-btrfs@...r.kernel.org
Cc: Asias He <asias@...hat.com>, Chris Mason <chris.mason@...cle.com>,
Jens Axboe <axboe@...nel.dk>
Subject: [PATCH 1/2] btrfs: Drop unused function btrfs_abort_devices()
1) This function is not used anywhere.
2) Using the blk_abort_queue() to abort the queue seems not correct.
blk_abort_queue() is used for timeout handling (block/blk-timeout.c).
Cc: Chris Mason <chris.mason@...cle.com>
Cc: linux-btrfs@...r.kernel.org
Cc: Jens Axboe <axboe@...nel.dk>
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Asias He <asias@...hat.com>
---
fs/btrfs/disk-io.c | 13 -------------
fs/btrfs/disk-io.h | 1 -
2 files changed, 14 deletions(-)
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index e1fe74a..3521866 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2902,19 +2902,6 @@ int write_ctree_super(struct btrfs_trans_handle *trans,
return ret;
}
-/* Kill all outstanding I/O */
-void btrfs_abort_devices(struct btrfs_root *root)
-{
- struct list_head *head;
- struct btrfs_device *dev;
- mutex_lock(&root->fs_info->fs_devices->device_list_mutex);
- head = &root->fs_info->fs_devices->devices;
- list_for_each_entry_rcu(dev, head, dev_list) {
- blk_abort_queue(dev->bdev->bd_disk->queue);
- }
- mutex_unlock(&root->fs_info->fs_devices->device_list_mutex);
-}
-
void btrfs_free_fs_root(struct btrfs_fs_info *fs_info, struct btrfs_root *root)
{
spin_lock(&fs_info->fs_roots_radix_lock);
diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h
index ab1830a..05b3fab 100644
--- a/fs/btrfs/disk-io.h
+++ b/fs/btrfs/disk-io.h
@@ -89,7 +89,6 @@ int btrfs_add_log_tree(struct btrfs_trans_handle *trans,
int btrfs_cleanup_transaction(struct btrfs_root *root);
void btrfs_cleanup_one_transaction(struct btrfs_transaction *trans,
struct btrfs_root *root);
-void btrfs_abort_devices(struct btrfs_root *root);
#ifdef CONFIG_DEBUG_LOCK_ALLOC
void btrfs_init_lockdep(void);
--
1.7.10.2
--
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