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| author | Jan Kara <jack@suse.cz> | 2013-08-16 21:19:41 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2013-08-16 21:19:41 -0400 |
| commit | a361293f5fedea0016a10599f409631a15d47ee7 (patch) | |
| tree | 63f69548f7479039312c6f61dcadeec9068c80d0 /fs/ext4/ext4.h | |
| parent | 91aa11fae1cf8c2fd67be0609692ea9741cdcc43 (diff) | |
| download | blackbird-op-linux-a361293f5fedea0016a10599f409631a15d47ee7.tar.gz blackbird-op-linux-a361293f5fedea0016a10599f409631a15d47ee7.zip | |
jbd2: Fix oops in jbd2_journal_file_inode()
Commit 0713ed0cde76438d05849f1537d3aab46e099475 added
jbd2_journal_file_inode() call into ext4_block_zero_page_range().
However that function gets called from truncate path and thus inode
needn't have jinode attached - that happens in ext4_file_open() but
the file needn't be ever open since mount. Calling
jbd2_journal_file_inode() without jinode attached results in the oops.
We fix the problem by attaching jinode to inode also in ext4_truncate()
and ext4_punch_hole() when we are going to zero out partial blocks.
Reported-by: majianpeng <majianpeng@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/ext4.h')
| -rw-r--r-- | fs/ext4/ext4.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index b577e45425b0..0ab26fbf3380 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -2086,6 +2086,7 @@ extern int ext4_sync_inode(handle_t *, struct inode *); extern void ext4_dirty_inode(struct inode *, int); extern int ext4_change_inode_journal_flag(struct inode *, int); extern int ext4_get_inode_loc(struct inode *, struct ext4_iloc *); +extern int ext4_inode_attach_jinode(struct inode *inode); extern int ext4_can_truncate(struct inode *inode); extern void ext4_truncate(struct inode *); extern int ext4_punch_hole(struct inode *inode, loff_t offset, loff_t length); |
