fs/ocfs2/file.c

393 	/* TODO: This needs to actually orphan the inode in this
531  * metadata reservations in the contexts.
534  * If passed in, *reason will always be set, even in error.
619 	 * run out of credits in the allocation path, we can still
753  * worry about recursive locking in ->write_begin() and ->write_end(). */
846  * Find the next range to zero.  We do this in terms of bytes because
1065 	 * The alloc sem blocks people in read/write from reading our
1176 		 * VFS entry point in the call chain of recursive cluster
1187 		 * ordering of the VFS entry points in the call chain is out
1288 	/* Release quota pointers in case we acquired them */
1321 	 * If there is inline data in the inode, the inode will normally not
1350 		/* See comments in ocfs2_setattr() for details.
1585 	 * is what the user passed in with the request. We must zero
1604 		 * zeroout eof blocks in last cluster starting from
1629 	 * If start is on a cluster boundary and end is somewhere in another
1631 	 * end is also within the same cluster. So, in this case, we skip this
1658 		 * code will skip any work in that case so there's no
1694  * Helper to calculate the punching pos and length in one run, we handle the
1695  * following three cases in order:
1796 		 * in the dinode buffer anyway.
2024 	/* zeroout eof blocks in the cluster. */
2266 		 * Check if IO will overwrite allocated blocks in case
2281 		 * instead of later in the write path because
2414 		 * already does this in write_begin().
2460 	 * deep in g_f_a_w_n()->ocfs2_direct_IO we pass in a ocfs2_dio_end_io
2465 	 * async dio is going to do it in the future or an end_io after an
2536 	 * buffered reads protect themselves in ->read_folio().  O_DIRECT reads
2591 static ssize_t ocfs2_file_splice_read(struct file *in, loff_t *ppos,
2595 	struct inode *inode = file_inode(in);
2599 	trace_ocfs2_file_splice_read(inode, in, in->f_path.dentry,
2601 				     in->f_path.dentry->d_name.len,
2602 				     in->f_path.dentry->d_name.name,
2614 	ret = ocfs2_inode_lock_atime(inode, in->f_path.mnt, &lock_level, 1);
2622 	ret = filemap_splice_read(in, ppos, pipe, len, flags);
2775  * Other than ->lock, keep ocfs2_fops and ocfs2_dops in sync with
2821  * ocfs2_flock is in here because all stacks handle UNIX file locks,
2822  * so we still want it in the case of no stack support for