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ext4: Always set dx_node's fake_dirent explicitly.

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When ext4_dx_add_entry() has to split an index node, it has to ensure that
name_len of dx_node's fake_dirent is also zero, because otherwise e2fsck
won't recognise it as an intermediate htree node and consider the htree to
be corrupted.

Signed-off-by: Andreas Schlick <schlick@lavabit.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Andreas Schlick 2009-09-10 23:16:07 -04:00 committed by Theodore Ts'o
parent 0e3d2a6313
commit 1f7bebb9e9
1 changed files with 1 additions and 1 deletions
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2
fs/ext4/namei.c
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@ -1597,9 +1597,9 @@ static int ext4_dx_add_entry(handle_t *handle, struct dentry *dentry,
goto cleanup; goto cleanup;
node2 = (struct dx_node *)(bh2->b_data); node2 = (struct dx_node *)(bh2->b_data);
entries2 = node2->entries; entries2 = node2->entries;
memset(&node2->fake, 0, sizeof(struct fake_dirent));
node2->fake.rec_len = ext4_rec_len_to_disk(sb->s_blocksize, node2->fake.rec_len = ext4_rec_len_to_disk(sb->s_blocksize,
sb->s_blocksize); sb->s_blocksize);
node2->fake.inode = 0;
BUFFER_TRACE(frame->bh, "get_write_access"); BUFFER_TRACE(frame->bh, "get_write_access");
err = ext4_journal_get_write_access(handle, frame->bh); err = ext4_journal_get_write_access(handle, frame->bh);
if (err) if (err)