Merge remote-tracking branches 'regulator/fix/88pm800', 'regulator/fix/max8973',...

[linux-drm-fsl-dcu.git] / fs / ext4 / inode.c

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 41f8e55afcd11491c5f25bf0989f74c12b9baf69..cecf9aa1081134d255455ee329a4e118b8355216 100644 (file)
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -1323,7 +1323,7 @@ static void ext4_da_page_release_reservation(struct page *page,
                                             unsigned int offset,
                                             unsigned int length)
 {
-       int to_release = 0;
+       int to_release = 0, contiguous_blks = 0;
        struct buffer_head *head, *bh;
        unsigned int curr_off = 0;
        struct inode *inode = page->mapping->host;
@@ -1344,14 +1344,23 @@ static void ext4_da_page_release_reservation(struct page *page,
 
                if ((offset <= curr_off) && (buffer_delay(bh))) {
                        to_release++;
+                       contiguous_blks++;
                        clear_buffer_delay(bh);
+               } else if (contiguous_blks) {
+                       lblk = page->index <<
+                              (PAGE_CACHE_SHIFT - inode->i_blkbits);
+                       lblk += (curr_off >> inode->i_blkbits) -
+                               contiguous_blks;
+                       ext4_es_remove_extent(inode, lblk, contiguous_blks);
+                       contiguous_blks = 0;
                }
                curr_off = next_off;
        } while ((bh = bh->b_this_page) != head);
 
-       if (to_release) {
+       if (contiguous_blks) {
                lblk = page->index << (PAGE_CACHE_SHIFT - inode->i_blkbits);
-               ext4_es_remove_extent(inode, lblk, to_release);
+               lblk += (curr_off >> inode->i_blkbits) - contiguous_blks;
+               ext4_es_remove_extent(inode, lblk, contiguous_blks);
        }
 
        /* If we have released all the blocks belonging to a cluster, then we
@@ -4344,7 +4353,12 @@ static void ext4_update_other_inodes_time(struct super_block *sb,
        int inode_size = EXT4_INODE_SIZE(sb);
 
        oi.orig_ino = orig_ino;
-       ino = (orig_ino & ~(inodes_per_block - 1)) + 1;
+       /*
+        * Calculate the first inode in the inode table block.  Inode
+        * numbers are one-based.  That is, the first inode in a block
+        * (assuming 4k blocks and 256 byte inodes) is (n*16 + 1).
+        */
+       ino = ((orig_ino - 1) & ~(inodes_per_block - 1)) + 1;
        for (i = 0; i < inodes_per_block; i++, ino++, buf += inode_size) {
                if (ino == orig_ino)
                        continue;