We can just check f2fs_lfs_mode() directly. The block_unaligned_IO()
check is redundant because in LFS mode, f2fs doesn't do direct I/O
writes that aren't block-aligned (due to f2fs_force_buffered_io()
returning true in this case, triggering the fallback to buffered I/O).
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
if (f2fs_force_buffered_io(inode, iocb, iter))
return 0;
- do_opu = allow_outplace_dio(inode, iocb, iter);
+ do_opu = rw == WRITE && f2fs_lfs_mode(sbi);
trace_f2fs_direct_IO_enter(inode, offset, count, rw);
return align & blocksize_mask;
}
-static inline int allow_outplace_dio(struct inode *inode,
- struct kiocb *iocb, struct iov_iter *iter)
-{
- struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
- int rw = iov_iter_rw(iter);
-
- return (f2fs_lfs_mode(sbi) && (rw == WRITE) &&
- !block_unaligned_IO(inode, iocb, iter));
-}
-
static inline bool f2fs_force_buffered_io(struct inode *inode,
struct kiocb *iocb, struct iov_iter *iter)
{
* back to buffered IO.
*/
if (!f2fs_force_buffered_io(inode, iocb, from) &&
- allow_outplace_dio(inode, iocb, from))
+ f2fs_lfs_mode(F2FS_I_SB(inode)))
goto write;
}
preallocated = true;