xfs: move xfs_do_force_shutdown() and kill xfs_rw.c

xfs_do_force_shutdown now is the only thing in xfs_rw.c. There is no
need to keep it in it's own file anymore, so move it to xfs_fsops.c
next to xfs_fs_goingdown() and kill xfs_rw.c.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>

1 files changed, 60 insertions, 0 deletions

diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index f6c7698c9a75..537c2aeb1ad2 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -688,3 +688,63 @@ xfs_fs_goingdown(
 
         return 0;
 }
+
+/*
+ * Force a shutdown of the filesystem instantly while keeping the filesystem
+ * consistent. We don't do an unmount here; just shutdown the shop, make sure
+ * that absolutely nothing persistent happens to this filesystem after this
+ * point.
+ */
+void
+xfs_do_force_shutdown(
+        xfs_mount_t     *mp,
+        int             flags,
+        char            *fname,
+        int             lnnum)
+{
+        int             logerror;
+
+        logerror = flags & SHUTDOWN_LOG_IO_ERROR;
+
+        if (!(flags & SHUTDOWN_FORCE_UMOUNT)) {
+                xfs_notice(mp,
+        "%s(0x%x) called from line %d of file %s.  Return address = 0x%p",
+                        __func__, flags, lnnum, fname, __return_address);
+        }
+        /*
+         * No need to duplicate efforts.
+         */
+        if (XFS_FORCED_SHUTDOWN(mp) && !logerror)
+                return;
+
+        /*
+         * This flags XFS_MOUNT_FS_SHUTDOWN, makes sure that we don't
+         * queue up anybody new on the log reservations, and wakes up
+         * everybody who's sleeping on log reservations to tell them
+         * the bad news.
+         */
+        if (xfs_log_force_umount(mp, logerror))
+                return;
+
+        if (flags & SHUTDOWN_CORRUPT_INCORE) {
+                xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_CORRUPT,
+    "Corruption of in-memory data detected.  Shutting down filesystem");
+                if (XFS_ERRLEVEL_HIGH <= xfs_error_level)
+                        xfs_stack_trace();
+        } else if (!(flags & SHUTDOWN_FORCE_UMOUNT)) {
+                if (logerror) {
+                        xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_LOGERROR,
+                "Log I/O Error Detected.  Shutting down filesystem");
+                } else if (flags & SHUTDOWN_DEVICE_REQ) {
+                        xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_IOERROR,
+                "All device paths lost.  Shutting down filesystem");
+                } else if (!(flags & SHUTDOWN_REMOTE_REQ)) {
+                        xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_IOERROR,
+                "I/O Error Detected. Shutting down filesystem");
+                }
+        }
+        if (!(flags & SHUTDOWN_FORCE_UMOUNT)) {
+                xfs_alert(mp,
+        "Please umount the filesystem and rectify the problem(s)");
+        }
+}