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f2fs: set dentry bits on random location in memory

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This fixes pointer panic when using inline_dentry, which was triggered when
backporting to 3.10.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2016-08-31 16:20:37 -07:00
parent c2a080aefa
commit 6bf6b267d2
2 changed files with 2 additions and 2 deletions
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2
fs/f2fs/dir.c
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@ -510,7 +510,7 @@ void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
de->ino = cpu_to_le32(ino);
set_de_type(de, mode);
for (i = 0; i < slots; i++) {
test_and_set_bit_le(bit_pos + i, (void *)d->bitmap);
__set_bit_le(bit_pos + i, (void *)d->bitmap);
/* avoid wrong garbage data for readdir */
if (i)
(de + i)->name_len = 0;

2
fs/f2fs/inline.c
View file

@ -566,7 +566,7 @@ void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry, struct page *page,
inline_dentry = inline_data_addr(page);
bit_pos = dentry - inline_dentry->dentry;
for (i = 0; i < slots; i++)
test_and_clear_bit_le(bit_pos + i,
__clear_bit_le(bit_pos + i,
&inline_dentry->dentry_bitmap);
set_page_dirty(page);