diff options
| author | Younger Liu <younger.liu@huawei.com> | 2014-02-10 14:25:51 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-02-10 16:01:43 -0800 |
| commit | d62e74be1270c89fbaf7aada8218bfdf62d00a58 (patch) | |
| tree | 2dde7ffc245d44cf51f699b3c5587df8f50882f2 /fs/ocfs2/alloc.c | |
| parent | 8d547ff4ac5927245e0833ac18528f939da0ee0e (diff) | |
| download | linux-d62e74be1270c89fbaf7aada8218bfdf62d00a58.tar.bz2 | |
ocfs2: fix issue that ocfs2_setattr() does not deal with new_i_size==i_size
The issue scenario is as following:
- Create a small file and fallocate a large disk space for a file with
FALLOC_FL_KEEP_SIZE option.
- ftruncate the file back to the original size again. but the disk free
space is not changed back. This is a real bug that be fixed in this
patch.
In order to solve the issue above, we modified ocfs2_setattr(), if
attr->ia_size != i_size_read(inode), It calls ocfs2_truncate_file(), and
truncate disk space to attr->ia_size.
Signed-off-by: Younger Liu <younger.liu@huawei.com>
Reviewed-by: Jie Liu <jeff.liu@oracle.com>
Tested-by: Jie Liu <jeff.liu@oracle.com>
Cc: Joel Becker <jlbec@evilplan.org>
Reviewed-by: Mark Fasheh <mfasheh@suse.de>
Cc: Sunil Mushran <sunil.mushran@gmail.com>
Reviewed-by: Jensen <shencanquan@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ocfs2/alloc.c')
| -rw-r--r-- | fs/ocfs2/alloc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c index aada5801567a..e2edff38be52 100644 --- a/fs/ocfs2/alloc.c +++ b/fs/ocfs2/alloc.c @@ -7158,7 +7158,7 @@ int ocfs2_truncate_inline(struct inode *inode, struct buffer_head *di_bh, if (end > i_size_read(inode)) end = i_size_read(inode); - BUG_ON(start >= end); + BUG_ON(start > end); if (!(OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL) || !(le16_to_cpu(di->i_dyn_features) & OCFS2_INLINE_DATA_FL) || |