mm/hugetlbfs: unmap pages if page fault raced with hole punch

[linux-2.6-microblaze.git] / fs / buffer.c

diff --git a/fs/buffer.c b/fs/buffer.c
index 4f4cd95..e1632ab 100644 (file)
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -134,13 +134,10 @@ __clear_page_buffers(struct page *page)
 
 static void buffer_io_error(struct buffer_head *bh, char *msg)
 {
-       char b[BDEVNAME_SIZE];
-
        if (!test_bit(BH_Quiet, &bh->b_state))
                printk_ratelimited(KERN_ERR
-                       "Buffer I/O error on dev %s, logical block %llu%s\n",
-                       bdevname(bh->b_bdev, b),
-                       (unsigned long long)bh->b_blocknr, msg);
+                       "Buffer I/O error on dev %pg, logical block %llu%s\n",
+                       bh->b_bdev, (unsigned long long)bh->b_blocknr, msg);
 }
 
 /*
@@ -237,15 +234,13 @@ __find_get_block_slow(struct block_device *bdev, sector_t block)
         * elsewhere, don't buffer_error if we had some unmapped buffers
         */
        if (all_mapped) {
-               char b[BDEVNAME_SIZE];
-
                printk("__find_get_block_slow() failed. "
                        "block=%llu, b_blocknr=%llu\n",
                        (unsigned long long)block,
                        (unsigned long long)bh->b_blocknr);
                printk("b_state=0x%08lx, b_size=%zu\n",
                        bh->b_state, bh->b_size);
-               printk("device %s blocksize: %d\n", bdevname(bdev, b),
+               printk("device %pg blocksize: %d\n", bdev,
                        1 << bd_inode->i_blkbits);
        }
 out_unlock:
@@ -531,10 +526,8 @@ repeat:
 
 static void do_thaw_one(struct super_block *sb, void *unused)
 {
-       char b[BDEVNAME_SIZE];
        while (sb->s_bdev && !thaw_bdev(sb->s_bdev, sb))
-               printk(KERN_WARNING "Emergency Thaw on %s\n",
-                      bdevname(sb->s_bdev, b));
+               printk(KERN_WARNING "Emergency Thaw on %pg\n", sb->s_bdev);
 }
 
 static void do_thaw_all(struct work_struct *work)
@@ -1074,12 +1067,10 @@ grow_buffers(struct block_device *bdev, sector_t block, int size, gfp_t gfp)
         * pagecache index.  (this comparison is done using sector_t types).
         */
        if (unlikely(index != block >> sizebits)) {
-               char b[BDEVNAME_SIZE];
-
                printk(KERN_ERR "%s: requested out-of-range block %llu for "
-                       "device %s\n",
+                       "device %pg\n",
                        __func__, (unsigned long long)block,
-                       bdevname(bdev, b));
+                       bdev);
                return -EIO;
        }