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Commit dc2070a2 authored by Shaohua Li's avatar Shaohua Li Committed by Theodore Ts'o
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ext4: remove dead code in ext4_has_free_blocks() 



percpu_counter_sum_positive() never returns a negative value.

Signed-off-by: default avatarShaohua Li <shaohua.li@intel.com>
Signed-off-by: default avatar"Theodore Ts'o" <tytso@mit.edu>
parent d9f34504

fs/ext4/balloc.c

+0 −5
Original line number Diff line number Diff line
@@ -507,11 +507,6 @@ static int ext4_has_free_blocks(struct ext4_sb_info *sbi, s64 nblocks) 
						EXT4_FREEBLOCKS_WATERMARK) {

		free_blocks  = percpu_counter_sum_positive(fbc);

		dirty_blocks = percpu_counter_sum_positive(dbc);

		if (dirty_blocks < 0) {

			printk(KERN_CRIT "Dirty block accounting "

					"went wrong %lld\n",

					(long long)dirty_blocks);

		}

	}

	/* Check whether we have space after

	 * accounting for current dirty blocks & root reserved blocks.