[PATCH] use gcc -O1 in fs/reiserfs only for ancient gcc versions

[powerpc.git] / fs / reiserfs / inode.c

diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 12dfdcf..8810fda 100644 (file)
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -17,8 +17,6 @@
 #include <linux/writeback.h>
 #include <linux/quotaops.h>
 
-extern int reiserfs_default_io_size;   /* default io size devuned in super.c */
-
 static int reiserfs_commit_write(struct file *f, struct page *page,
                                 unsigned from, unsigned to);
 static int reiserfs_prepare_write(struct file *f, struct page *page,
@@ -39,14 +37,10 @@ void reiserfs_delete_inode(struct inode *inode)
 
        /* The = 0 happens when we abort creating a new inode for some reason like lack of space.. */
        if (!(inode->i_state & I_NEW) && INODE_PKEY(inode)->k_objectid != 0) {  /* also handles bad_inode case */
-               mutex_lock(&inode->i_mutex);
-
                reiserfs_delete_xattrs(inode);
 
-               if (journal_begin(&th, inode->i_sb, jbegin_count)) {
-                       mutex_unlock(&inode->i_mutex);
+               if (journal_begin(&th, inode->i_sb, jbegin_count))
                        goto out;
-               }
                reiserfs_update_inode_transaction(inode);
 
                err = reiserfs_delete_object(&th, inode);
@@ -57,12 +51,8 @@ void reiserfs_delete_inode(struct inode *inode)
                if (!err) 
                        DQUOT_FREE_INODE(inode);
 
-               if (journal_end(&th, inode->i_sb, jbegin_count)) {
-                       mutex_unlock(&inode->i_mutex);
+               if (journal_end(&th, inode->i_sb, jbegin_count))
                        goto out;
-               }
-
-               mutex_unlock(&inode->i_mutex);
 
                /* check return value from reiserfs_delete_object after
                 * ending the transaction
@@ -1130,7 +1120,6 @@ static void init_inode(struct inode *inode, struct path *path)
        ih = PATH_PITEM_HEAD(path);
 
        copy_key(INODE_PKEY(inode), &(ih->ih_key));
-       inode->i_blksize = reiserfs_default_io_size;
 
        INIT_LIST_HEAD(&(REISERFS_I(inode)->i_prealloc_list));
        REISERFS_I(inode)->i_flags = 0;
@@ -1885,7 +1874,6 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
        }
        // these do not go to on-disk stat data
        inode->i_ino = le32_to_cpu(ih.ih_key.k_objectid);
-       inode->i_blksize = reiserfs_default_io_size;
 
        // store in in-core inode the key of stat data and version all
        // object items will have (directory items will have old offset
@@ -2348,6 +2336,7 @@ static int reiserfs_write_full_page(struct page *page,
        unsigned long end_index = inode->i_size >> PAGE_CACHE_SHIFT;
        int error = 0;
        unsigned long block;
+       sector_t last_block;
        struct buffer_head *head, *bh;
        int partial = 0;
        int nr = 0;
@@ -2395,10 +2384,19 @@ static int reiserfs_write_full_page(struct page *page,
        }
        bh = head;
        block = page->index << (PAGE_CACHE_SHIFT - s->s_blocksize_bits);
+       last_block = (i_size_read(inode) - 1) >> inode->i_blkbits;
        /* first map all the buffers, logging any direct items we find */
        do {
-               if ((checked || buffer_dirty(bh)) && (!buffer_mapped(bh) ||
-                                                     (buffer_mapped(bh)
+               if (block > last_block) {
+                       /*
+                        * This can happen when the block size is less than
+                        * the page size.  The corresponding bytes in the page
+                        * were zero filled above
+                        */
+                       clear_buffer_dirty(bh);
+                       set_buffer_uptodate(bh);
+               } else if ((checked || buffer_dirty(bh)) &&
+                          (!buffer_mapped(bh) || (buffer_mapped(bh)
                                                       && bh->b_blocknr ==
                                                       0))) {
                        /* not mapped yet, or it points to a direct item, search