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btrfs: share the code to free the page array in compress_file_range

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compress_file_range has two code blocks to free the page array for the
compressed data.  Share the code using a goto label.

Reviewed-by: Josef Bacik <josef@toxicpanda.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 2023-06-28 17:31:39 +02:00 committed by David Sterba
parent 184aa1ffa5
commit f778b6b8e0
1 changed files with 9 additions and 21 deletions
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30
fs/btrfs/inode.c
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@ -1004,12 +1004,7 @@ static void compress_file_range(struct btrfs_work *work)
PAGE_UNLOCK |
PAGE_START_WRITEBACK |
PAGE_END_WRITEBACK);
for (i = 0; i < nr_pages; i++) {
WARN_ON(pages[i]->mapping);
put_page(pages[i]);
}
kfree(pages);
return;
goto free_pages;
}
}
@ -1045,21 +1040,6 @@ static void compress_file_range(struct btrfs_work *work)
if (!btrfs_test_opt(fs_info, FORCE_COMPRESS) && !inode->prop_compress)
inode->flags |= BTRFS_INODE_NOCOMPRESS;
cleanup_and_bail_uncompressed:
if (pages) {
/*
* the compression code ran but failed to make things smaller,
* free any pages it allocated and our page pointer array
*/
for (i = 0; i < nr_pages; i++) {
WARN_ON(pages[i]->mapping);
put_page(pages[i]);
}
kfree(pages);
pages = NULL;
total_compressed = 0;
nr_pages = 0;
}
/*
* No compression, but we still need to write the pages in the file
* we've been given so far. redirty the locked page if it corresponds
@ -1077,6 +1057,14 @@ static void compress_file_range(struct btrfs_work *work)
extent_range_redirty_for_io(&inode->vfs_inode, start, end);
add_async_extent(async_chunk, start, end - start + 1, 0, NULL, 0,
BTRFS_COMPRESS_NONE);
free_pages:
if (pages) {
for (i = 0; i < nr_pages; i++) {
WARN_ON(pages[i]->mapping);
put_page(pages[i]);
}
kfree(pages);
}
}
static void free_async_extent_pages(struct async_extent *async_extent)