Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[pandora-kernel.git] / fs / hfsplus / super.c

diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c
index f2a6402..c0759fe 100644 (file)
--- a/fs/hfsplus/super.c
+++ b/fs/hfsplus/super.c
@@ -12,6 +12,7 @@
 #include <linux/pagemap.h>
 #include <linux/fs.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/vfs.h>
 #include <linux/nls.h>
 
@@ -152,15 +153,14 @@ static void hfsplus_clear_inode(struct inode *inode)
        }
 }
 
-static void hfsplus_write_super(struct super_block *sb)
+static int hfsplus_sync_fs(struct super_block *sb, int wait)
 {
        struct hfsplus_vh *vhdr = HFSPLUS_SB(sb).s_vhdr;
 
        dprint(DBG_SUPER, "hfsplus_write_super\n");
+
+       lock_super(sb);
        sb->s_dirt = 0;
-       if (sb->s_flags & MS_RDONLY)
-               /* warn? */
-               return;
 
        vhdr->free_blocks = cpu_to_be32(HFSPLUS_SB(sb).free_blocks);
        vhdr->next_alloc = cpu_to_be32(HFSPLUS_SB(sb).next_alloc);
@@ -192,6 +192,16 @@ static void hfsplus_write_super(struct super_block *sb)
                }
                HFSPLUS_SB(sb).flags &= ~HFSPLUS_SB_WRITEBACKUP;
        }
+       unlock_super(sb);
+       return 0;
+}
+
+static void hfsplus_write_super(struct super_block *sb)
+{
+       if (!(sb->s_flags & MS_RDONLY))
+               hfsplus_sync_fs(sb, 1);
+       else
+               sb->s_dirt = 0;
 }
 
 static void hfsplus_put_super(struct super_block *sb)
@@ -199,6 +209,11 @@ static void hfsplus_put_super(struct super_block *sb)
        dprint(DBG_SUPER, "hfsplus_put_super\n");
        if (!sb->s_fs_info)
                return;
+
+       lock_kernel();
+
+       if (sb->s_dirt)
+               hfsplus_write_super(sb);
        if (!(sb->s_flags & MS_RDONLY) && HFSPLUS_SB(sb).s_vhdr) {
                struct hfsplus_vh *vhdr = HFSPLUS_SB(sb).s_vhdr;
 
@@ -218,6 +233,8 @@ static void hfsplus_put_super(struct super_block *sb)
                unload_nls(HFSPLUS_SB(sb).nls);
        kfree(sb->s_fs_info);
        sb->s_fs_info = NULL;
+
+       unlock_kernel();
 }
 
 static int hfsplus_statfs(struct dentry *dentry, struct kstatfs *buf)
@@ -279,6 +296,7 @@ static const struct super_operations hfsplus_sops = {
        .clear_inode    = hfsplus_clear_inode,
        .put_super      = hfsplus_put_super,
        .write_super    = hfsplus_write_super,
+       .sync_fs        = hfsplus_sync_fs,
        .statfs         = hfsplus_statfs,
        .remount_fs     = hfsplus_remount,
        .show_options   = hfsplus_show_options,