Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 127 insertions, 0 deletions

diff --git a/fs/ntfs/mft.h b/fs/ntfs/mft.h
new file mode 100644
index 000000000000..407de2cef1d6
--- /dev/null
+++ b/fs/ntfs/mft.h
@@ -0,0 +1,127 @@
+/*
+ * mft.h - Defines for mft record handling in NTFS Linux kernel driver.
+ *         Part of the Linux-NTFS project.
+ *
+ * Copyright (c) 2001-2004 Anton Altaparmakov
+ *
+ * This program/include file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program/include file is distributed in the hope that it will be
+ * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program (in the main directory of the Linux-NTFS
+ * distribution in the file COPYING); if not, write to the Free Software
+ * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef _LINUX_NTFS_MFT_H
+#define _LINUX_NTFS_MFT_H
+
+#include <linux/fs.h>
+#include <linux/highmem.h>
+#include <linux/pagemap.h>
+
+#include "inode.h"
+
+extern MFT_RECORD *map_mft_record(ntfs_inode *ni);
+extern void unmap_mft_record(ntfs_inode *ni);
+
+extern MFT_RECORD *map_extent_mft_record(ntfs_inode *base_ni, MFT_REF mref,
+                ntfs_inode **ntfs_ino);
+
+static inline void unmap_extent_mft_record(ntfs_inode *ni)
+{
+        unmap_mft_record(ni);
+        return;
+}
+
+#ifdef NTFS_RW
+
+/**
+ * flush_dcache_mft_record_page - flush_dcache_page() for mft records
+ * @ni:         ntfs inode structure of mft record
+ *
+ * Call flush_dcache_page() for the page in which an mft record resides.
+ *
+ * This must be called every time an mft record is modified, just after the
+ * modification.
+ */
+static inline void flush_dcache_mft_record_page(ntfs_inode *ni)
+{
+        flush_dcache_page(ni->page);
+}
+
+extern void __mark_mft_record_dirty(ntfs_inode *ni);
+
+/**
+ * mark_mft_record_dirty - set the mft record and the page containing it dirty
+ * @ni:         ntfs inode describing the mapped mft record
+ *
+ * Set the mapped (extent) mft record of the (base or extent) ntfs inode @ni,
+ * as well as the page containing the mft record, dirty.  Also, mark the base
+ * vfs inode dirty.  This ensures that any changes to the mft record are
+ * written out to disk.
+ *
+ * NOTE:  Do not do anything if the mft record is already marked dirty.
+ */
+static inline void mark_mft_record_dirty(ntfs_inode *ni)
+{
+        if (!NInoTestSetDirty(ni))
+                __mark_mft_record_dirty(ni);
+}
+
+extern int ntfs_sync_mft_mirror(ntfs_volume *vol, const unsigned long mft_no,
+                MFT_RECORD *m, int sync);
+
+extern int write_mft_record_nolock(ntfs_inode *ni, MFT_RECORD *m, int sync);
+
+/**
+ * write_mft_record - write out a mapped (extent) mft record
+ * @ni:         ntfs inode describing the mapped (extent) mft record
+ * @m:          mapped (extent) mft record to write
+ * @sync:       if true, wait for i/o completion
+ *
+ * This is just a wrapper for write_mft_record_nolock() (see mft.c), which
+ * locks the page for the duration of the write.  This ensures that there are
+ * no race conditions between writing the mft record via the dirty inode code
+ * paths and via the page cache write back code paths or between writing
+ * neighbouring mft records residing in the same page.
+ *
+ * Locking the page also serializes us against ->readpage() if the page is not
+ * uptodate.
+ *
+ * On success, clean the mft record and return 0.  On error, leave the mft
+ * record dirty and return -errno.  The caller should call make_bad_inode() on
+ * the base inode to ensure no more access happens to this inode.  We do not do
+ * it here as the caller may want to finish writing other extent mft records
+ * first to minimize on-disk metadata inconsistencies.
+ */
+static inline int write_mft_record(ntfs_inode *ni, MFT_RECORD *m, int sync)
+{
+        struct page *page = ni->page;
+        int err;
+
+        BUG_ON(!page);
+        lock_page(page);
+        err = write_mft_record_nolock(ni, m, sync);
+        unlock_page(page);
+        return err;
+}
+
+extern BOOL ntfs_may_write_mft_record(ntfs_volume *vol,
+                const unsigned long mft_no, const MFT_RECORD *m,
+                ntfs_inode **locked_ni);
+
+extern ntfs_inode *ntfs_mft_record_alloc(ntfs_volume *vol, const int mode,
+                ntfs_inode *base_ni, MFT_RECORD **mrec);
+extern int ntfs_extent_mft_record_free(ntfs_inode *ni, MFT_RECORD *m);
+
+#endif /* NTFS_RW */
+
+#endif /* _LINUX_NTFS_MFT_H */