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btrfs: consolidate the error handling in run_delalloc_nocow

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Share the calls to extent_clear_unlock_delalloc for btrfs_path allocation
failure handling and the normal exit path.

This relies on btrfs_free_path ignoring a NULL pointer, and the
initialization of cur_offset to start at the beginning of the function.

Reviewed-by: Boris Burkov <boris@bur.io>
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 2023-07-24 07:22:40 -07:00 • committed by David Sterba
parent 18f62b86c4
commit 38dc88890d
1 changed files with 2 additions and 7 deletions
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9
fs/btrfs/inode.c
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@ -1978,13 +1978,8 @@ static noinline int run_delalloc_nocow(struct btrfs_inode *inode,
path = btrfs_alloc_path();
if (!path) {
extent_clear_unlock_delalloc(inode, start, end, locked_page,
EXTENT_LOCKED | EXTENT_DELALLOC |
EXTENT_DO_ACCOUNTING |
EXTENT_DEFRAG, PAGE_UNLOCK |
PAGE_START_WRITEBACK |
PAGE_END_WRITEBACK);
return -ENOMEM;
ret = -ENOMEM;
goto error;
}
nocow_args.end = end;