forked from Minki/linux
Btrfs: Abstract similar code for btrfs_block_rsv_add{, _noflush}
btrfs_block_rsv_add{, _noflush}() have similar code, so abstract that code. Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
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@ -3796,16 +3796,16 @@ void btrfs_free_block_rsv(struct btrfs_root *root,
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kfree(rsv);
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}
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int btrfs_block_rsv_add(struct btrfs_root *root,
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struct btrfs_block_rsv *block_rsv,
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u64 num_bytes)
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static inline int __block_rsv_add(struct btrfs_root *root,
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struct btrfs_block_rsv *block_rsv,
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u64 num_bytes, int flush)
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{
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int ret;
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if (num_bytes == 0)
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return 0;
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ret = reserve_metadata_bytes(root, block_rsv, num_bytes, 1);
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ret = reserve_metadata_bytes(root, block_rsv, num_bytes, flush);
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if (!ret) {
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block_rsv_add_bytes(block_rsv, num_bytes, 1);
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return 0;
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@ -3814,22 +3814,18 @@ int btrfs_block_rsv_add(struct btrfs_root *root,
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return ret;
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}
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int btrfs_block_rsv_add(struct btrfs_root *root,
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struct btrfs_block_rsv *block_rsv,
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u64 num_bytes)
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{
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return __block_rsv_add(root, block_rsv, num_bytes, 1);
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}
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int btrfs_block_rsv_add_noflush(struct btrfs_root *root,
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struct btrfs_block_rsv *block_rsv,
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u64 num_bytes)
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{
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int ret;
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if (num_bytes == 0)
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return 0;
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ret = reserve_metadata_bytes(root, block_rsv, num_bytes, 0);
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if (!ret) {
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block_rsv_add_bytes(block_rsv, num_bytes, 1);
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return 0;
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}
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return ret;
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return __block_rsv_add(root, block_rsv, num_bytes, 0);
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}
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int btrfs_block_rsv_check(struct btrfs_root *root,
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