Merge branch 'master' of /home/trondmy/kernel/linux-2.6/ into merge_linus

1 files changed, 9 insertions, 52 deletions

diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c
index ac14318c81ba..373d862c3f87 100644
--- a/fs/reiserfs/file.c
+++ b/fs/reiserfs/file.c
@@ -317,12 +317,11 @@ static int reiserfs_allocate_blocks_for_region(struct reiserfs_transaction_handl
                         /* area filled with zeroes, to supply as list of zero blocknumbers
                            We allocate it outside of loop just in case loop would spin for
                            several iterations. */
-                        char *zeros = kmalloc(to_paste * UNFM_P_SIZE, GFP_ATOMIC);      // We cannot insert more than MAX_ITEM_LEN bytes anyway.
+                        char *zeros = kzalloc(to_paste * UNFM_P_SIZE, GFP_ATOMIC);      // We cannot insert more than MAX_ITEM_LEN bytes anyway.
                         if (!zeros) {
                                 res = -ENOMEM;
                                 goto error_exit_free_blocks;
                         }
-                        memset(zeros, 0, to_paste * UNFM_P_SIZE);
                         do {
                                 to_paste =
                                     min_t(__u64, hole_size,
@@ -407,6 +406,8 @@ static int reiserfs_allocate_blocks_for_region(struct reiserfs_transaction_handl
                                    we restart it. This will also free the path. */
                                 if (journal_transaction_should_end
                                     (th, th->t_blocks_allocated)) {
+                                        inode->i_size = cpu_key_k_offset(&key) +
+                                                (to_paste << inode->i_blkbits);
                                         res =
                                             restart_transaction(th, inode,
                                                                 &path);
@@ -1045,6 +1046,7 @@ static int reiserfs_prepare_file_region_for_write(struct inode *inode
                         char *kaddr = kmap_atomic(prepared_pages[0], KM_USER0);
                         memset(kaddr, 0, from);
                         kunmap_atomic(kaddr, KM_USER0);
+                        flush_dcache_page(prepared_pages[0]);
                 }
                 if (to != PAGE_CACHE_SIZE) {    /* Last page needs to be partially zeroed */
                         char *kaddr =
@@ -1052,6 +1054,7 @@ static int reiserfs_prepare_file_region_for_write(struct inode *inode
                                         KM_USER0);
                         memset(kaddr + to, 0, PAGE_CACHE_SIZE - to);
                         kunmap_atomic(kaddr, KM_USER0);
+                        flush_dcache_page(prepared_pages[num_pages - 1]);
                 }
 
                 /* Since all blocks are new - use already calculated value */
@@ -1185,6 +1188,7 @@ static int reiserfs_prepare_file_region_for_write(struct inode *inode
                                         memset(kaddr + block_start, 0,
                                                from - block_start);
                                         kunmap_atomic(kaddr, KM_USER0);
+                                        flush_dcache_page(prepared_pages[0]);
                                         set_buffer_uptodate(bh);
                                 }
                         }
@@ -1222,6 +1226,7 @@ static int reiserfs_prepare_file_region_for_write(struct inode *inode
                                                         KM_USER0);
                                         memset(kaddr + to, 0, block_end - to);
                                         kunmap_atomic(kaddr, KM_USER0);
+                                        flush_dcache_page(prepared_pages[num_pages - 1]);
                                         set_buffer_uptodate(bh);
                                 }
                         }
@@ -1307,56 +1312,8 @@ static ssize_t reiserfs_file_write(struct file *file,	/* the file we are going t
                         count = MAX_NON_LFS - (unsigned long)*ppos;
         }
 
-        if (file->f_flags & O_DIRECT) { // Direct IO needs treatment
-                ssize_t result, after_file_end = 0;
-                if ((*ppos + count >= inode->i_size)
-                    || (file->f_flags & O_APPEND)) {
-                        /* If we are appending a file, we need to put this savelink in here.
-                           If we will crash while doing direct io, finish_unfinished will
-                           cut the garbage from the file end. */
-                        reiserfs_write_lock(inode->i_sb);
-                        err =
-                            journal_begin(&th, inode->i_sb,
-                                          JOURNAL_PER_BALANCE_CNT);
-                        if (err) {
-                                reiserfs_write_unlock(inode->i_sb);
-                                return err;
-                        }
-                        reiserfs_update_inode_transaction(inode);
-                        add_save_link(&th, inode, 1 /* Truncate */ );
-                        after_file_end = 1;
-                        err =
-                            journal_end(&th, inode->i_sb,
-                                        JOURNAL_PER_BALANCE_CNT);
-                        reiserfs_write_unlock(inode->i_sb);
-                        if (err)
-                                return err;
-                }
-                result = do_sync_write(file, buf, count, ppos);
-
-                if (after_file_end) {   /* Now update i_size and remove the savelink */
-                        struct reiserfs_transaction_handle th;
-                        reiserfs_write_lock(inode->i_sb);
-                        err = journal_begin(&th, inode->i_sb, 1);
-                        if (err) {
-                                reiserfs_write_unlock(inode->i_sb);
-                                return err;
-                        }
-                        reiserfs_update_inode_transaction(inode);
-                        mark_inode_dirty(inode);
-                        err = journal_end(&th, inode->i_sb, 1);
-                        if (err) {
-                                reiserfs_write_unlock(inode->i_sb);
-                                return err;
-                        }
-                        err = remove_save_link(inode, 1 /* truncate */ );
-                        reiserfs_write_unlock(inode->i_sb);
-                        if (err)
-                                return err;
-                }
-
-                return result;
-        }
+        if (file->f_flags & O_DIRECT)
+                return do_sync_write(file, buf, count, ppos);
 
         if (unlikely((ssize_t) count < 0))
                 return -EINVAL;