Since commit a2ad63daa88b ("VFS: add FMODE_CAN_ODIRECT file flag") file systems can just set the FMODE_CAN_ODIRECT flag at open time instead of wiring up a dummy direct_IO method to indicate support for direct I/O. Do that for ext4 so that noop_direct_IO can eventually be removed. Signed-off-by: Christoph Hellwig <hch@xxxxxx> --- fs/ext4/file.c | 2 +- fs/ext4/inode.c | 4 ---- 2 files changed, 1 insertion(+), 5 deletions(-) diff --git a/fs/ext4/file.c b/fs/ext4/file.c index d101b3b0c7dad8..a1d8ffbf571274 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -900,7 +900,7 @@ static int ext4_file_open(struct inode *inode, struct file *filp) } filp->f_mode |= FMODE_NOWAIT | FMODE_BUF_RASYNC | - FMODE_DIO_PARALLEL_WRITE; + FMODE_DIO_PARALLEL_WRITE | FMODE_CAN_ODIRECT; return dquot_file_open(inode, filp); } diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 02de439bf1f04e..b9c1cfa1864779 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3539,7 +3539,6 @@ static const struct address_space_operations ext4_aops = { .bmap = ext4_bmap, .invalidate_folio = ext4_invalidate_folio, .release_folio = ext4_release_folio, - .direct_IO = noop_direct_IO, .migrate_folio = buffer_migrate_folio, .is_partially_uptodate = block_is_partially_uptodate, .error_remove_page = generic_error_remove_page, @@ -3556,7 +3555,6 @@ static const struct address_space_operations ext4_journalled_aops = { .bmap = ext4_bmap, .invalidate_folio = ext4_journalled_invalidate_folio, .release_folio = ext4_release_folio, - .direct_IO = noop_direct_IO, .migrate_folio = buffer_migrate_folio_norefs, .is_partially_uptodate = block_is_partially_uptodate, .error_remove_page = generic_error_remove_page, @@ -3573,7 +3571,6 @@ static const struct address_space_operations ext4_da_aops = { .bmap = ext4_bmap, .invalidate_folio = ext4_invalidate_folio, .release_folio = ext4_release_folio, - .direct_IO = noop_direct_IO, .migrate_folio = buffer_migrate_folio, .is_partially_uptodate = block_is_partially_uptodate, .error_remove_page = generic_error_remove_page, @@ -3582,7 +3579,6 @@ static const struct address_space_operations ext4_da_aops = { static const struct address_space_operations ext4_dax_aops = { .writepages = ext4_dax_writepages, - .direct_IO = noop_direct_IO, .dirty_folio = noop_dirty_folio, .bmap = ext4_bmap, .swap_activate = ext4_iomap_swap_activate, -- 2.39.2