1 files changed, 12 insertions, 7 deletions

diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index ffa34b861bdb..d60f6238c66a 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -627,11 +627,6 @@ int reiserfs_get_block(struct inode *inode, sector_t block,
         reiserfs_write_lock(inode->i_sb);
         version = get_inode_item_key_version(inode);
 
-        if (block < 0) {
-                reiserfs_write_unlock(inode->i_sb);
-                return -EIO;
-        }
-
         if (!file_capable(inode, block)) {
                 reiserfs_write_unlock(inode->i_sb);
                 return -EFBIG;
@@ -934,12 +929,13 @@ int reiserfs_get_block(struct inode *inode, sector_t block,
                                      //pos_in_item * inode->i_sb->s_blocksize,
                                      TYPE_INDIRECT, 3); // key type is unimportant
 
+                        RFALSE(cpu_key_k_offset(&tmp_key) > cpu_key_k_offset(&key),
+                               "green-805: invalid offset");
                         blocks_needed =
                             1 +
                             ((cpu_key_k_offset(&key) -
                               cpu_key_k_offset(&tmp_key)) >> inode->i_sb->
                              s_blocksize_bits);
-                        RFALSE(blocks_needed < 0, "green-805: invalid offset");
 
                         if (blocks_needed == 1) {
                                 un = &unf_single;
@@ -2363,6 +2359,13 @@ static int reiserfs_write_full_page(struct page *page,
         int bh_per_page = PAGE_CACHE_SIZE / s->s_blocksize;
         th.t_trans_id = 0;
 
+        /* no logging allowed when nonblocking or from PF_MEMALLOC */
+        if (checked && (current->flags & PF_MEMALLOC)) {
+                redirty_page_for_writepage(wbc, page);
+                unlock_page(page);
+                return 0;
+        }
+
         /* The page dirty bit is cleared before writepage is called, which
          * means we have to tell create_empty_buffers to make dirty buffers
          * The page really should be up to date at this point, so tossing
@@ -2743,6 +2746,7 @@ static int invalidatepage_can_drop(struct inode *inode, struct buffer_head *bh)
         int ret = 1;
         struct reiserfs_journal *j = SB_JOURNAL(inode->i_sb);
 
+        lock_buffer(bh);
         spin_lock(&j->j_dirty_buffers_lock);
         if (!buffer_mapped(bh)) {
                 goto free_jh;
@@ -2758,7 +2762,7 @@ static int invalidatepage_can_drop(struct inode *inode, struct buffer_head *bh)
                 if (buffer_journaled(bh) || buffer_journal_dirty(bh)) {
                         ret = 0;
                 }
-        } else if (buffer_dirty(bh) || buffer_locked(bh)) {
+        } else  if (buffer_dirty(bh)) {
                 struct reiserfs_journal_list *jl;
                 struct reiserfs_jh *jh = bh->b_private;
 
@@ -2784,6 +2788,7 @@ static int invalidatepage_can_drop(struct inode *inode, struct buffer_head *bh)
                 reiserfs_free_jh(bh);
         }
         spin_unlock(&j->j_dirty_buffers_lock);
+        unlock_buffer(bh);
         return ret;
 }