Merge remote-tracking branch 'airlied/drm-next' into topic/vblank-rework

Dave asked me to do the backmerge before sending him the revised pull
request, so here we go. Nothing fancy in the conflicts, just a few
things changed right next to each another.

Conflicts:
	drivers/gpu/drm/drm_irq.c

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>

1 files changed, 27 insertions, 13 deletions

diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index 7a34a1ae6552..cd7b8ca9b064 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -130,7 +130,7 @@ xfs_buf_get_maps(
         bp->b_maps = kmem_zalloc(map_count * sizeof(struct xfs_buf_map),
                                 KM_NOFS);
         if (!bp->b_maps)
-                return ENOMEM;
+                return -ENOMEM;
         return 0;
 }
 
@@ -344,7 +344,7 @@ retry:
                 if (unlikely(page == NULL)) {
                         if (flags & XBF_READ_AHEAD) {
                                 bp->b_page_count = i;
-                                error = ENOMEM;
+                                error = -ENOMEM;
                                 goto out_free_pages;
                         }
 
@@ -465,7 +465,7 @@ _xfs_buf_find(
         eofs = XFS_FSB_TO_BB(btp->bt_mount, btp->bt_mount->m_sb.sb_dblocks);
         if (blkno >= eofs) {
                 /*
-                 * XXX (dgc): we should really be returning EFSCORRUPTED here,
+                 * XXX (dgc): we should really be returning -EFSCORRUPTED here,
                  * but none of the higher level infrastructure supports
                  * returning a specific error on buffer lookup failures.
                  */
@@ -1052,8 +1052,8 @@ xfs_buf_ioerror(
         xfs_buf_t               *bp,
         int                     error)
 {
-        ASSERT(error >= 0 && error <= 0xffff);
-        bp->b_error = (unsigned short)error;
+        ASSERT(error <= 0 && error >= -1000);
+        bp->b_error = error;
         trace_xfs_buf_ioerror(bp, error, _RET_IP_);
 }
 
@@ -1064,7 +1064,7 @@ xfs_buf_ioerror_alert(
 {
         xfs_alert(bp->b_target->bt_mount,
 "metadata I/O error: block 0x%llx (\"%s\") error %d numblks %d",
-                (__uint64_t)XFS_BUF_ADDR(bp), func, bp->b_error, bp->b_length);
+                (__uint64_t)XFS_BUF_ADDR(bp), func, -bp->b_error, bp->b_length);
 }
 
 /*
@@ -1083,7 +1083,7 @@ xfs_bioerror(
         /*
          * No need to wait until the buffer is unpinned, we aren't flushing it.
          */
-        xfs_buf_ioerror(bp, EIO);
+        xfs_buf_ioerror(bp, -EIO);
 
         /*
          * We're calling xfs_buf_ioend, so delete XBF_DONE flag.
@@ -1094,7 +1094,7 @@ xfs_bioerror(
 
         xfs_buf_ioend(bp, 0);
 
-        return EIO;
+        return -EIO;
 }
 
 /*
@@ -1127,13 +1127,13 @@ xfs_bioerror_relse(
                  * There's no reason to mark error for
                  * ASYNC buffers.
                  */
-                xfs_buf_ioerror(bp, EIO);
+                xfs_buf_ioerror(bp, -EIO);
                 complete(&bp->b_iowait);
         } else {
                 xfs_buf_relse(bp);
         }
 
-        return EIO;
+        return -EIO;
 }
 
 STATIC int
@@ -1199,7 +1199,7 @@ xfs_buf_bio_end_io(
          * buffers that require multiple bios to complete.
          */
         if (!bp->b_error)
-                xfs_buf_ioerror(bp, -error);
+                xfs_buf_ioerror(bp, error);
 
         if (!bp->b_error && xfs_buf_is_vmapped(bp) && (bp->b_flags & XBF_READ))
                 invalidate_kernel_vmap_range(bp->b_addr, xfs_buf_vmap_len(bp));
@@ -1286,7 +1286,7 @@ next_chunk:
                  * because the caller (xfs_buf_iorequest) holds a count itself.
                  */
                 atomic_dec(&bp->b_io_remaining);
-                xfs_buf_ioerror(bp, EIO);
+                xfs_buf_ioerror(bp, -EIO);
                 bio_put(bio);
         }
 
@@ -1330,6 +1330,20 @@ _xfs_buf_ioapply(
                                                    SHUTDOWN_CORRUPT_INCORE);
                                 return;
                         }
+                } else if (bp->b_bn != XFS_BUF_DADDR_NULL) {
+                        struct xfs_mount *mp = bp->b_target->bt_mount;
+
+                        /*
+                         * non-crc filesystems don't attach verifiers during
+                         * log recovery, so don't warn for such filesystems.
+                         */
+                        if (xfs_sb_version_hascrc(&mp->m_sb)) {
+                                xfs_warn(mp,
+                                        "%s: no ops on block 0x%llx/0x%x",
+                                        __func__, bp->b_bn, bp->b_length);
+                                xfs_hex_dump(bp->b_addr, 64);
+                                dump_stack();
+                        }
                 }
         } else if (bp->b_flags & XBF_READ_AHEAD) {
                 rw = READA;
@@ -1628,7 +1642,7 @@ xfs_setsize_buftarg(
                 xfs_warn(btp->bt_mount,
                         "Cannot set_blocksize to %u on device %s",
                         sectorsize, name);
-                return EINVAL;
+                return -EINVAL;
         }
 
         /* Set up device logical sector size mask */