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Commit 560f7d75 authored by Li Zefan's avatar Li Zefan Committed by David Sterba
Browse files

Btrfs: remove BUG_ON() in compress_file_range() 



It's not a big deal if we fail to allocate the array, and instead of
panic we can just give up compressing.

Signed-off-by: default avatarLi Zefan <lizf@cn.fujitsu.com>
parent a05a9bb1

fs/btrfs/inode.c

+5 −1
Original line number Diff line number Diff line
@@ -393,7 +393,10 @@ static noinline int compress_file_range(struct inode *inode, 
	     (BTRFS_I(inode)->flags & BTRFS_INODE_COMPRESS))) {

		WARN_ON(pages);

		pages = kzalloc(sizeof(struct page *) * nr_pages, GFP_NOFS);

		BUG_ON(!pages);

		if (!pages) {

			/* just bail out to the uncompressed code */

			goto cont;

		}



		if (BTRFS_I(inode)->force_compress)

			compress_type = BTRFS_I(inode)->force_compress;
@@ -424,6 +427,7 @@ static noinline int compress_file_range(struct inode *inode, 
			will_compress = 1;

		}

	}

cont:

	if (start == 0) {

		trans = btrfs_join_transaction(root);

		BUG_ON(IS_ERR(trans));