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btrfs: remove redundant free_extent_map in btrfs_submit_compressed_read

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em can't be non-NULL after the free_extent_map label.  Also remove
the now pointless clearing of em to NULL after freeing it.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Christoph Hellwig 2023-02-10 08:48:35 +01:00 committed by David Sterba
parent 544fe4a903
commit 798c9fc74d
1 changed files with 0 additions and 2 deletions
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2
fs/btrfs/compression.c
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@ -572,7 +572,6 @@ void btrfs_submit_compressed_read(struct bio *bio, int mirror_num)
cb->orig_bio = bio;
free_extent_map(em);
em = NULL;
cb->nr_pages = DIV_ROUND_UP(compressed_len, PAGE_SIZE);
cb->compressed_pages = kcalloc(cb->nr_pages, sizeof(struct page *), GFP_NOFS);
@ -629,7 +628,6 @@ out_free_compressed_pages:
kfree(cb->compressed_pages);
out_free_bio:
bio_put(comp_bio);
free_extent_map(em);
out:
btrfs_bio_end_io(btrfs_bio(bio), ret);
}