Merge commit 'v2.6.36-rc1' into HEAD

4 files changed, 46 insertions, 38 deletions

diff --git a/fs/affs/affs.h b/fs/affs/affs.h
index f05b6155ccc8..a8cbdeb34025 100644
--- a/fs/affs/affs.h
+++ b/fs/affs/affs.h
@@ -171,8 +171,7 @@ extern int	affs_rename(struct inode *old_dir, struct dentry *old_dentry,
 extern unsigned long             affs_parent_ino(struct inode *dir);
 extern struct inode             *affs_new_inode(struct inode *dir);
 extern int                       affs_notify_change(struct dentry *dentry, struct iattr *attr);
-extern void                      affs_delete_inode(struct inode *inode);
-extern void                      affs_clear_inode(struct inode *inode);
+extern void                      affs_evict_inode(struct inode *inode);
 extern struct inode             *affs_iget(struct super_block *sb,
                                         unsigned long ino);
 extern int                       affs_write_inode(struct inode *inode,
diff --git a/fs/affs/file.c b/fs/affs/file.c
index 322710c3eedf..c4a9875bd1a6 100644
--- a/fs/affs/file.c
+++ b/fs/affs/file.c
@@ -406,10 +406,19 @@ static int affs_write_begin(struct file *file, struct address_space *mapping,
                         loff_t pos, unsigned len, unsigned flags,
                         struct page **pagep, void **fsdata)
 {
+        int ret;
+
         *pagep = NULL;
-        return cont_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
+        ret = cont_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
                                 affs_get_block,
                                 &AFFS_I(mapping->host)->mmu_private);
+        if (unlikely(ret)) {
+                loff_t isize = mapping->host->i_size;
+                if (pos + len > isize)
+                        vmtruncate(mapping->host, isize);
+        }
+
+        return ret;
 }
 
 static sector_t _affs_bmap(struct address_space *mapping, sector_t block)
diff --git a/fs/affs/inode.c b/fs/affs/inode.c
index f4b2a4ee4f91..3a0fdec175ba 100644
--- a/fs/affs/inode.c
+++ b/fs/affs/inode.c
@@ -235,31 +235,36 @@ affs_notify_change(struct dentry *dentry, struct iattr *attr)
                 goto out;
         }
 
-        error = inode_setattr(inode, attr);
-        if (!error && (attr->ia_valid & ATTR_MODE))
+        if ((attr->ia_valid & ATTR_SIZE) &&
+            attr->ia_size != i_size_read(inode)) {
+                error = vmtruncate(inode, attr->ia_size);
+                if (error)
+                        return error;
+        }
+
+        setattr_copy(inode, attr);
+        mark_inode_dirty(inode);
+
+        if (attr->ia_valid & ATTR_MODE)
                 mode_to_prot(inode);
 out:
         return error;
 }
 
 void
-affs_delete_inode(struct inode *inode)
-{
-        pr_debug("AFFS: delete_inode(ino=%lu, nlink=%u)\n", inode->i_ino, inode->i_nlink);
-        truncate_inode_pages(&inode->i_data, 0);
-        inode->i_size = 0;
-        affs_truncate(inode);
-        clear_inode(inode);
-        affs_free_block(inode->i_sb, inode->i_ino);
-}
-
-void
-affs_clear_inode(struct inode *inode)
+affs_evict_inode(struct inode *inode)
 {
         unsigned long cache_page;
+        pr_debug("AFFS: evict_inode(ino=%lu, nlink=%u)\n", inode->i_ino, inode->i_nlink);
+        truncate_inode_pages(&inode->i_data, 0);
 
-        pr_debug("AFFS: clear_inode(ino=%lu, nlink=%u)\n", inode->i_ino, inode->i_nlink);
+        if (!inode->i_nlink) {
+                inode->i_size = 0;
+                affs_truncate(inode);
+        }
 
+        invalidate_inode_buffers(inode);
+        end_writeback(inode);
         affs_free_prealloc(inode);
         cache_page = (unsigned long)AFFS_I(inode)->i_lc;
         if (cache_page) {
@@ -271,6 +276,9 @@ affs_clear_inode(struct inode *inode)
         affs_brelse(AFFS_I(inode)->i_ext_bh);
         AFFS_I(inode)->i_ext_last = ~1;
         AFFS_I(inode)->i_ext_bh = NULL;
+
+        if (!inode->i_nlink)
+                affs_free_block(inode->i_sb, inode->i_ino);
 }
 
 struct inode *
diff --git a/fs/affs/super.c b/fs/affs/super.c
index 16a3e4765f68..33c4e7eef470 100644
--- a/fs/affs/super.c
+++ b/fs/affs/super.c
@@ -26,7 +26,7 @@ static int affs_statfs(struct dentry *dentry, struct kstatfs *buf);
 static int affs_remount (struct super_block *sb, int *flags, char *data);
 
 static void
-affs_commit_super(struct super_block *sb, int clean)
+affs_commit_super(struct super_block *sb, int wait, int clean)
 {
         struct affs_sb_info *sbi = AFFS_SB(sb);
         struct buffer_head *bh = sbi->s_root_bh;
@@ -36,6 +36,8 @@ affs_commit_super(struct super_block *sb, int clean)
         secs_to_datestamp(get_seconds(), &tail->disk_change);
         affs_fix_checksum(sb, bh);
         mark_buffer_dirty(bh);
+        if (wait)
+                sync_dirty_buffer(bh);
 }
 
 static void
@@ -46,8 +48,8 @@ affs_put_super(struct super_block *sb)
 
         lock_kernel();
 
-        if (!(sb->s_flags & MS_RDONLY))
-                affs_commit_super(sb, 1);
+        if (!(sb->s_flags & MS_RDONLY) && sb->s_dirt)
+                affs_commit_super(sb, 1, 1);
 
         kfree(sbi->s_prefix);
         affs_free_bitmap(sb);
@@ -61,27 +63,20 @@ affs_put_super(struct super_block *sb)
 static void
 affs_write_super(struct super_block *sb)
 {
-        int clean = 2;
-
         lock_super(sb);
-        if (!(sb->s_flags & MS_RDONLY)) {
-                //      if (sbi->s_bitmap[i].bm_bh) {
-                //              if (buffer_dirty(sbi->s_bitmap[i].bm_bh)) {
-                //                      clean = 0;
-                affs_commit_super(sb, clean);
-                sb->s_dirt = !clean;    /* redo until bitmap synced */
-        } else
-                sb->s_dirt = 0;
+        if (!(sb->s_flags & MS_RDONLY))
+                affs_commit_super(sb, 1, 2);
+        sb->s_dirt = 0;
         unlock_super(sb);
 
-        pr_debug("AFFS: write_super() at %lu, clean=%d\n", get_seconds(), clean);
+        pr_debug("AFFS: write_super() at %lu, clean=2\n", get_seconds());
 }
 
 static int
 affs_sync_fs(struct super_block *sb, int wait)
 {
         lock_super(sb);
-        affs_commit_super(sb, 2);
+        affs_commit_super(sb, wait, 2);
         sb->s_dirt = 0;
         unlock_super(sb);
         return 0;
@@ -140,8 +135,7 @@ static const struct super_operations affs_sops = {
         .alloc_inode    = affs_alloc_inode,
         .destroy_inode  = affs_destroy_inode,
         .write_inode    = affs_write_inode,
-        .delete_inode   = affs_delete_inode,
-        .clear_inode    = affs_clear_inode,
+        .evict_inode    = affs_evict_inode,
         .put_super      = affs_put_super,
         .write_super    = affs_write_super,
         .sync_fs        = affs_sync_fs,
@@ -554,9 +548,7 @@ affs_remount(struct super_block *sb, int *flags, char *data)
                 return 0;
         }
         if (*flags & MS_RDONLY) {
-                sb->s_dirt = 1;
-                while (sb->s_dirt)
-                        affs_write_super(sb);
+                affs_write_super(sb);
                 affs_free_bitmap(sb);
         } else
                 res = affs_init_bitmap(sb, flags);