xfs: merge xfs_lrw.c into xfs_file.c
Currently the code to implement the file operations is split over
two small files. Merge the content of xfs_lrw.c into xfs_file.c to
have it in one place. Note that I haven't done various cleanups
that are possible after this yet, they will follow in the next
patch. Also the function xfs_dev_is_read_only which was in
xfs_lrw.c before really doesn't fit in here at all and was moved to
xfs_mount.c.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 6afaaeb..c207fef 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -2052,6 +2052,26 @@
return error;
}
+/*
+ * If the underlying (data/log/rt) device is readonly, there are some
+ * operations that cannot proceed.
+ */
+int
+xfs_dev_is_read_only(
+ struct xfs_mount *mp,
+ char *message)
+{
+ if (xfs_readonly_buftarg(mp->m_ddev_targp) ||
+ xfs_readonly_buftarg(mp->m_logdev_targp) ||
+ (mp->m_rtdev_targp && xfs_readonly_buftarg(mp->m_rtdev_targp))) {
+ cmn_err(CE_NOTE,
+ "XFS: %s required on read-only device.", message);
+ cmn_err(CE_NOTE,
+ "XFS: write access unavailable, cannot proceed.");
+ return EROFS;
+ }
+ return 0;
+}
#ifdef HAVE_PERCPU_SB
/*