VServer 1.9.2 (patch-2.6.8.1-vs1.9.2.diff)

[linux-2.6.git] / fs / jfs / file.c

diff --git a/fs/jfs/file.c b/fs/jfs/file.c
index 67e4ba8..a87b06f 100644 (file)
--- a/fs/jfs/file.c
+++ b/fs/jfs/file.c
@@ -65,11 +65,13 @@ static int jfs_open(struct inode *inode, struct file *file)
        if (S_ISREG(inode->i_mode) && file->f_mode & FMODE_WRITE &&
            (inode->i_size == 0)) {
                struct jfs_inode_info *ji = JFS_IP(inode);
+               spin_lock_irq(&ji->ag_lock);
                if (ji->active_ag == -1) {
                        ji->active_ag = ji->agno;
                        atomic_inc(
                            &JFS_SBI(inode->i_sb)->bmap->db_active[ji->agno]);
                }
+               spin_unlock_irq(&ji->ag_lock);
        }
 
        return 0;
@@ -78,11 +80,13 @@ static int jfs_release(struct inode *inode, struct file *file)
 {
        struct jfs_inode_info *ji = JFS_IP(inode);
 
+       spin_lock_irq(&ji->ag_lock);
        if (ji->active_ag != -1) {
                struct bmap *bmap = JFS_SBI(inode->i_sb)->bmap;
                atomic_dec(&bmap->db_active[ji->active_ag]);
                ji->active_ag = -1;
        }
+       spin_unlock_irq(&ji->ag_lock);
 
        return 0;
 }