| Message ID | 1365456754-29373-28-git-send-email-jack@suse.cz |
|---|---|
| State | Superseded, archived |
| Headers | show |
On Mon, Apr 08, 2013 at 11:32:32PM +0200, Jan Kara wrote: > We don't have to wait for unwritten extent conversion in > ext4_ind_direct_IO() as all writes that happened before DIO are flushed > by the generic code and extent conversion has happened before we cleared > PageWriteback bit. > > Signed-off-by: Jan Kara <jack@suse.cz> Reviewed-by: Zheng Liu <wenqing.lz@taobao.com> Regards, - Zheng > --- > fs/ext4/indirect.c | 5 ----- > 1 files changed, 0 insertions(+), 5 deletions(-) > > diff --git a/fs/ext4/indirect.c b/fs/ext4/indirect.c > index 197b202..d1c6be4 100644 > --- a/fs/ext4/indirect.c > +++ b/fs/ext4/indirect.c > @@ -809,11 +809,6 @@ ssize_t ext4_ind_direct_IO(int rw, struct kiocb *iocb, > > retry: > if (rw == READ && ext4_should_dioread_nolock(inode)) { > - if (unlikely(atomic_read(&EXT4_I(inode)->i_unwritten))) { > - mutex_lock(&inode->i_mutex); > - ext4_flush_unwritten_io(inode); > - mutex_unlock(&inode->i_mutex); > - } > /* > * Nolock dioread optimization may be dynamically disabled > * via ext4_inode_block_unlocked_dio(). Check inode's state > -- > 1.7.1 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-ext4" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/fs/ext4/indirect.c b/fs/ext4/indirect.c index 197b202..d1c6be4 100644 --- a/fs/ext4/indirect.c +++ b/fs/ext4/indirect.c @@ -809,11 +809,6 @@ ssize_t ext4_ind_direct_IO(int rw, struct kiocb *iocb, retry: if (rw == READ && ext4_should_dioread_nolock(inode)) { - if (unlikely(atomic_read(&EXT4_I(inode)->i_unwritten))) { - mutex_lock(&inode->i_mutex); - ext4_flush_unwritten_io(inode); - mutex_unlock(&inode->i_mutex); - } /* * Nolock dioread optimization may be dynamically disabled * via ext4_inode_block_unlocked_dio(). Check inode's state
We don't have to wait for unwritten extent conversion in ext4_ind_direct_IO() as all writes that happened before DIO are flushed by the generic code and extent conversion has happened before we cleared PageWriteback bit. Signed-off-by: Jan Kara <jack@suse.cz> --- fs/ext4/indirect.c | 5 ----- 1 files changed, 0 insertions(+), 5 deletions(-)