1 files changed, 17 insertions, 12 deletions

diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c
index e7b2bafa1dd9..10bb02c3f25c 100644
--- a/fs/ext2/balloc.c
+++ b/fs/ext2/balloc.c
@@ -106,7 +106,7 @@ static int ext2_valid_block_bitmap(struct super_block *sb,
                 return 1;
 
 err_out:
-        ext2_error(sb, __FUNCTION__,
+        ext2_error(sb, __func__,
                         "Invalid block bitmap - "
                         "block_group = %d, block = %lu",
                         block_group, bitmap_blk);
@@ -132,7 +132,7 @@ read_block_bitmap(struct super_block *sb, unsigned int block_group)
         bitmap_blk = le32_to_cpu(desc->bg_block_bitmap);
         bh = sb_getblk(sb, bitmap_blk);
         if (unlikely(!bh)) {
-                ext2_error(sb, __FUNCTION__,
+                ext2_error(sb, __func__,
                             "Cannot read block bitmap - "
                             "block_group = %d, block_bitmap = %u",
                             block_group, le32_to_cpu(desc->bg_block_bitmap));
@@ -143,17 +143,18 @@ read_block_bitmap(struct super_block *sb, unsigned int block_group)
 
         if (bh_submit_read(bh) < 0) {
                 brelse(bh);
-                ext2_error(sb, __FUNCTION__,
+                ext2_error(sb, __func__,
                             "Cannot read block bitmap - "
                             "block_group = %d, block_bitmap = %u",
                             block_group, le32_to_cpu(desc->bg_block_bitmap));
                 return NULL;
         }
-        if (!ext2_valid_block_bitmap(sb, desc, block_group, bh)) {
-                brelse(bh);
-                return NULL;
-        }
 
+        ext2_valid_block_bitmap(sb, desc, block_group, bh);
+        /*
+         * file system mounted not to panic on error, continue with corrupt
+         * bitmap
+         */
         return bh;
 }
 
@@ -245,11 +246,10 @@ restart:
                 prev = rsv;
         }
         printk("Window map complete.\n");
-        if (bad)
-                BUG();
+        BUG_ON(bad);
 }
 #define rsv_window_dump(root, verbose) \
-        __rsv_window_dump((root), (verbose), __FUNCTION__)
+        __rsv_window_dump((root), (verbose), __func__)
 #else
 #define rsv_window_dump(root, verbose) do {} while (0)
 #endif
@@ -548,7 +548,7 @@ do_more:
         for (i = 0, group_freed = 0; i < count; i++) {
                 if (!ext2_clear_bit_atomic(sb_bgl_lock(sbi, block_group),
                                                 bit + i, bitmap_bh->b_data)) {
-                        ext2_error(sb, __FUNCTION__,
+                        ext2_error(sb, __func__,
                                 "bit already cleared for block %lu", block + i);
                 } else {
                         group_freed++;
@@ -1381,7 +1381,12 @@ allocated:
                             "Allocating block in system zone - "
                             "blocks from "E2FSBLK", length %lu",
                             ret_block, num);
-                goto out;
+                /*
+                 * ext2_try_to_allocate marked the blocks we allocated as in
+                 * use.  So we may want to selectively mark some of the blocks
+                 * as free
+                 */
+                goto retry_alloc;
         }
 
         performed_allocation = 1;