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btrfs: send: fix old buffer length in fs_path_ensure_buf
In "btrfs: send: lower memory requirements in common case" the code to save the old_buf_len was incorrectly moved to a wrong place and broke the original logic. Reported-by: Filipe David Manana <fdmanana@gmail.com> Signed-off-by: David Sterba <dsterba@suse.cz> Reviewed-by: Filipe David Manana <fdmanana@gmail.com> Signed-off-by: Josef Bacik <jbacik@fb.com>
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1 changed files with 3 additions and 3 deletions
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@ -346,6 +346,9 @@ static int fs_path_ensure_buf(struct fs_path *p, int len)
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if (p->buf_len >= len)
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return 0;
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path_len = p->end - p->start;
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old_buf_len = p->buf_len;
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/*
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* First time the inline_buf does not suffice
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*/
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@ -368,9 +371,6 @@ static int fs_path_ensure_buf(struct fs_path *p, int len)
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p->buf_len = ksize(p->buf);
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}
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path_len = p->end - p->start;
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old_buf_len = p->buf_len;
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if (p->reversed) {
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tmp_buf = p->buf + old_buf_len - path_len - 1;
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p->end = p->buf + p->buf_len - 1;
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