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7fb2eced10
There's a single caller and the function name does not say it's actually taking the lock, so open coding makes it more explicit. For now, btrfs_dev_replace_read_lock is used instead of read_lock so it's paired with the unlocking wrapper in the same block. Reviewed-by: Anand Jain <anand.jain@oracle.com> Signed-off-by: David Sterba <dsterba@suse.com>
38 lines
1.5 KiB
C
38 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) STRATO AG 2012. All rights reserved.
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*/
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#ifndef BTRFS_DEV_REPLACE_H
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#define BTRFS_DEV_REPLACE_H
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struct btrfs_ioctl_dev_replace_args;
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int btrfs_init_dev_replace(struct btrfs_fs_info *fs_info);
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int btrfs_run_dev_replace(struct btrfs_trans_handle *trans,
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struct btrfs_fs_info *fs_info);
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void btrfs_after_dev_replace_commit(struct btrfs_fs_info *fs_info);
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int btrfs_dev_replace_by_ioctl(struct btrfs_fs_info *fs_info,
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struct btrfs_ioctl_dev_replace_args *args);
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int btrfs_dev_replace_start(struct btrfs_fs_info *fs_info,
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const char *tgtdev_name, u64 srcdevid, const char *srcdev_name,
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int read_src);
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void btrfs_dev_replace_status(struct btrfs_fs_info *fs_info,
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struct btrfs_ioctl_dev_replace_args *args);
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int btrfs_dev_replace_cancel(struct btrfs_fs_info *fs_info);
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void btrfs_dev_replace_suspend_for_unmount(struct btrfs_fs_info *fs_info);
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int btrfs_resume_dev_replace_async(struct btrfs_fs_info *fs_info);
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int btrfs_dev_replace_is_ongoing(struct btrfs_dev_replace *dev_replace);
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void btrfs_dev_replace_read_lock(struct btrfs_dev_replace *dev_replace);
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void btrfs_dev_replace_read_unlock(struct btrfs_dev_replace *dev_replace);
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void btrfs_dev_replace_write_lock(struct btrfs_dev_replace *dev_replace);
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void btrfs_dev_replace_write_unlock(struct btrfs_dev_replace *dev_replace);
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void btrfs_dev_replace_set_lock_blocking(struct btrfs_dev_replace *dev_replace);
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static inline void btrfs_dev_replace_stats_inc(atomic64_t *stat_value)
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{
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atomic64_inc(stat_value);
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}
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#endif
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