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Commit 16eb7295 authored by Aneesh Kumar K.V's avatar Aneesh Kumar K.V Committed by Theodore Ts'o
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ext4: make sure ext4_has_free_blocks returns 0 for ENOSPC 



Fix ext4_has_free_blocks() to return 0 when we don't have enough space.

Signed-off-by: default avatarAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: default avatarMingming Cao <cmm@us.ibm.com>
Signed-off-by: default avatar"Theodore Ts'o" <tytso@mit.edu>
parent 525f4ed8

fs/ext4/balloc.c

+3 −0
Original line number Diff line number Diff line
@@ -1626,6 +1626,9 @@ ext4_fsblk_t ext4_has_free_blocks(struct ext4_sb_info *sbi, 
		free_blocks =

			percpu_counter_sum_and_set(&sbi->s_freeblocks_counter);

#endif

	if (free_blocks <= root_blocks)

		/* we don't have free space */

		return 0;

	if (free_blocks - root_blocks < nblocks)

		return free_blocks - root_blocks;

	return nblocks;