Dmitry Monakhov <dmonak...@openvz.org> writes:
Please ignore this patch, use second version instead > If fallocate will change file's data we have to drop csum. > > Signed-off-by: Dmitry Monakhov <dmonak...@openvz.org> > --- > fs/ext4/extents.c | 5 +++++ > 1 files changed, 5 insertions(+), 0 deletions(-) > > diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c > index 08b0709..fe95102 100644 > --- a/fs/ext4/extents.c > +++ b/fs/ext4/extents.c > @@ -5062,6 +5062,11 @@ long ext4_fallocate(struct file *file, int mode, > loff_t offset, loff_t len) > FALLOC_FL_CONVERT_AND_EXTEND)) > return -EOPNOTSUPP; > > + /* If data is about to change we must drop csum */ > + if (ext4_test_inode_state(inode, EXT4_STATE_CSUM) && > + ((mode & ~FALLOC_FL_KEEP_SIZE) || !(mode & FALLOC_FL_KEEP_SIZE))) > + ext4_truncate_data_csum(inode, -1); > + > if (mode & FALLOC_FL_PUNCH_HOLE) > return ext4_punch_hole(inode, offset, len); > > -- > 1.7.1
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