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Commit d794bf8e authored by Aneesh Kumar K.V's avatar Aneesh Kumar K.V Committed by Theodore Ts'o
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ext4: Initialize preallocation list_head's properly 



When creating a new ext4_prealloc_space structure, we have to
initialize its list_head pointers before we add them to any prealloc
lists.  Otherwise, with list debug enabled, we will get list
corruption warnings.

Signed-off-by: default avatarAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: default avatar"Theodore Ts'o" <tytso@mit.edu>
parent ba443916

fs/ext4/mballoc.c

+3 −0
Original line number Diff line number Diff line
@@ -3693,6 +3693,8 @@ ext4_mb_new_inode_pa(struct ext4_allocation_context *ac) 
	pa->pa_free = pa->pa_len;

	atomic_set(&pa->pa_count, 1);

	spin_lock_init(&pa->pa_lock);

	INIT_LIST_HEAD(&pa->pa_inode_list);

	INIT_LIST_HEAD(&pa->pa_group_list);

	pa->pa_deleted = 0;

	pa->pa_linear = 0;
@@ -3755,6 +3757,7 @@ ext4_mb_new_group_pa(struct ext4_allocation_context *ac) 
	atomic_set(&pa->pa_count, 1);

	spin_lock_init(&pa->pa_lock);

	INIT_LIST_HEAD(&pa->pa_inode_list);

	INIT_LIST_HEAD(&pa->pa_group_list);

	pa->pa_deleted = 0;

	pa->pa_linear = 1;