From: Jaegeuk Kim <jaegeuk@kernel.org>
To: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-f2fs-devel@lists.sourceforge.net
Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Subject: [PATCH] f2fs: set dentry bits on random location in memory
Date: Wed, 31 Aug 2016 18:08:23 -0700 [thread overview]
Message-ID: <20160901010823.18300-1-jaegeuk@kernel.org> (raw)
This fixes pointer panic when using inline_dentry, which was triggered when
backporting to 3.10.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
fs/f2fs/dir.c | 2 +-
fs/f2fs/inline.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index 9316d8a..2fb20fc 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -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;
diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c
index 8a96107..4d526f3 100644
--- a/fs/f2fs/inline.c
+++ b/fs/f2fs/inline.c
@@ -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);
--
2.8.3
reply other threads:[~2016-09-01 1:08 UTC|newest]
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