On Mon 15-11-10 12:05:21, Josef Bacik wrote: > Ext4 doesn't have the ability to punch holes yet, so make sure we return > EOPNOTSUPP if we try to use hole punching through fallocate. This support can > be added later. Thanks, > > Signed-off-by: Josef Bacik <josef@xxxxxxxxxx> Acked-by: Jan Kara <jack@xxxxxxx> Honza > --- > fs/ext4/extents.c | 4 ++++ > 1 files changed, 4 insertions(+), 0 deletions(-) > > diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c > index 0554c48..35bca73 100644 > --- a/fs/ext4/extents.c > +++ b/fs/ext4/extents.c > @@ -3622,6 +3622,10 @@ long ext4_fallocate(struct inode *inode, int mode, loff_t offset, loff_t len) > struct ext4_map_blocks map; > unsigned int credits, blkbits = inode->i_blkbits; > > + /* We only support the FALLOC_FL_KEEP_SIZE mode */ > + if (mode && (mode != FALLOC_FL_KEEP_SIZE)) > + return -EOPNOTSUPP; > + > /* > * currently supporting (pre)allocate mode for extent-based > * files _only_ > -- > 1.6.6.1 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Jan Kara <jack@xxxxxxx> SUSE Labs, CR -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
