static ssize_t btrfs_direct_write(struct kiocb *iocb, struct iov_iter *from)
{
- const bool is_sync_write = (iocb->ki_flags & IOCB_DSYNC);
struct file *file = iocb->ki_filp;
struct inode *inode = file_inode(file);
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
}
/*
- * We remove IOCB_DSYNC so that we don't deadlock when iomap_dio_rw()
- * calls generic_write_sync() (through iomap_dio_complete()), because
- * that results in calling fsync (btrfs_sync_file()) which will try to
- * lock the inode in exclusive/write mode.
- */
- if (is_sync_write)
- iocb->ki_flags &= ~IOCB_DSYNC;
-
- /*
* The iov_iter can be mapped to the same file range we are writing to.
* If that's the case, then we will deadlock in the iomap code, because
* it first calls our callback btrfs_dio_iomap_begin(), which will create
btrfs_inode_unlock(inode, ilock_flags);
/*
- * Add back IOCB_DSYNC. Our caller, btrfs_file_write_iter(), will do
- * the fsync (call generic_write_sync()).
- */
- if (is_sync_write)
- iocb->ki_flags |= IOCB_DSYNC;
-
- /*
* If 'err' is -ENOTBLK or we have not written all data, then it means
* we must fallback to buffered IO.
*/
struct file *file = iocb->ki_filp;
struct btrfs_inode *inode = BTRFS_I(file_inode(file));
ssize_t num_written, num_sync;
- const bool sync = iocb->ki_flags & IOCB_DSYNC;
+ const bool sync = iocb_is_dsync(iocb);
/*
* If the fs flips readonly due to some impossible error, although we