1 files changed, 0 insertions, 323 deletions

diff --git a/ANDROID_3.4.5/fs/reiserfs/file.c b/ANDROID_3.4.5/fs/reiserfs/file.c
deleted file mode 100644
index 8375c922..00000000
--- a/ANDROID_3.4.5/fs/reiserfs/file.c
+++ /dev/null
@@ -1,323 +0,0 @@
-/*
- * Copyright 2000 by Hans Reiser, licensing governed by reiserfs/README
- */
-
-#include <linux/time.h>
-#include "reiserfs.h"
-#include "acl.h"
-#include "xattr.h"
-#include <asm/uaccess.h>
-#include <linux/pagemap.h>
-#include <linux/swap.h>
-#include <linux/writeback.h>
-#include <linux/blkdev.h>
-#include <linux/buffer_head.h>
-#include <linux/quotaops.h>
-
-/*
-** We pack the tails of files on file close, not at the time they are written.
-** This implies an unnecessary copy of the tail and an unnecessary indirect item
-** insertion/balancing, for files that are written in one write.
-** It avoids unnecessary tail packings (balances) for files that are written in
-** multiple writes and are small enough to have tails.
-**
-** file_release is called by the VFS layer when the file is closed.  If
-** this is the last open file descriptor, and the file
-** small enough to have a tail, and the tail is currently in an
-** unformatted node, the tail is converted back into a direct item.
-**
-** We use reiserfs_truncate_file to pack the tail, since it already has
-** all the conditions coded.
-*/
-static int reiserfs_file_release(struct inode *inode, struct file *filp)
-{
-
-	struct reiserfs_transaction_handle th;
-	int err;
-	int jbegin_failure = 0;
-
-	BUG_ON(!S_ISREG(inode->i_mode));
-
-        if (atomic_add_unless(&REISERFS_I(inode)->openers, -1, 1))
-		return 0;
-
-	mutex_lock(&(REISERFS_I(inode)->tailpack));
-
-        if (!atomic_dec_and_test(&REISERFS_I(inode)->openers)) {
-		mutex_unlock(&(REISERFS_I(inode)->tailpack));
-		return 0;
-	}
-
-	/* fast out for when nothing needs to be done */
-	if ((!(REISERFS_I(inode)->i_flags & i_pack_on_close_mask) ||
-	     !tail_has_to_be_packed(inode)) &&
-	    REISERFS_I(inode)->i_prealloc_count <= 0) {
-		mutex_unlock(&(REISERFS_I(inode)->tailpack));
-		return 0;
-	}
-
-	reiserfs_write_lock(inode->i_sb);
-	/* freeing preallocation only involves relogging blocks that
-	 * are already in the current transaction.  preallocation gets
-	 * freed at the end of each transaction, so it is impossible for
-	 * us to log any additional blocks (including quota blocks)
-	 */
-	err = journal_begin(&th, inode->i_sb, 1);
-	if (err) {
-		/* uh oh, we can't allow the inode to go away while there
-		 * is still preallocation blocks pending.  Try to join the
-		 * aborted transaction
-		 */
-		jbegin_failure = err;
-		err = journal_join_abort(&th, inode->i_sb, 1);
-
-		if (err) {
-			/* hmpf, our choices here aren't good.  We can pin the inode
-			 * which will disallow unmount from every happening, we can
-			 * do nothing, which will corrupt random memory on unmount,
-			 * or we can forcibly remove the file from the preallocation
-			 * list, which will leak blocks on disk.  Lets pin the inode
-			 * and let the admin know what is going on.
-			 */
-			igrab(inode);
-			reiserfs_warning(inode->i_sb, "clm-9001",
-					 "pinning inode %lu because the "
-					 "preallocation can't be freed",
-					 inode->i_ino);
-			goto out;
-		}
-	}
-	reiserfs_update_inode_transaction(inode);
-
-#ifdef REISERFS_PREALLOCATE
-	reiserfs_discard_prealloc(&th, inode);
-#endif
-	err = journal_end(&th, inode->i_sb, 1);
-
-	/* copy back the error code from journal_begin */
-	if (!err)
-		err = jbegin_failure;
-
-	if (!err &&
-	    (REISERFS_I(inode)->i_flags & i_pack_on_close_mask) &&
-	    tail_has_to_be_packed(inode)) {
-
-		/* if regular file is released by last holder and it has been
-		   appended (we append by unformatted node only) or its direct
-		   item(s) had to be converted, then it may have to be
-		   indirect2direct converted */
-		err = reiserfs_truncate_file(inode, 0);
-	}
-      out:
-	reiserfs_write_unlock(inode->i_sb);
-	mutex_unlock(&(REISERFS_I(inode)->tailpack));
-	return err;
-}
-
-static int reiserfs_file_open(struct inode *inode, struct file *file)
-{
-	int err = dquot_file_open(inode, file);
-        if (!atomic_inc_not_zero(&REISERFS_I(inode)->openers)) {
-		/* somebody might be tailpacking on final close; wait for it */
-		mutex_lock(&(REISERFS_I(inode)->tailpack));
-		atomic_inc(&REISERFS_I(inode)->openers);
-		mutex_unlock(&(REISERFS_I(inode)->tailpack));
-	}
-	return err;
-}
-
-static void reiserfs_vfs_truncate_file(struct inode *inode)
-{
-	mutex_lock(&(REISERFS_I(inode)->tailpack));
-	reiserfs_truncate_file(inode, 1);
-	mutex_unlock(&(REISERFS_I(inode)->tailpack));
-}
-
-/* Sync a reiserfs file. */
-
-/*
- * FIXME: sync_mapping_buffers() never has anything to sync.  Can
- * be removed...
- */
-
-static int reiserfs_sync_file(struct file *filp, loff_t start, loff_t end,
-			      int datasync)
-{
-	struct inode *inode = filp->f_mapping->host;
-	int err;
-	int barrier_done;
-
-	err = filemap_write_and_wait_range(inode->i_mapping, start, end);
-	if (err)
-		return err;
-
-	mutex_lock(&inode->i_mutex);
-	BUG_ON(!S_ISREG(inode->i_mode));
-	err = sync_mapping_buffers(inode->i_mapping);
-	reiserfs_write_lock(inode->i_sb);
-	barrier_done = reiserfs_commit_for_inode(inode);
-	reiserfs_write_unlock(inode->i_sb);
-	if (barrier_done != 1 && reiserfs_barrier_flush(inode->i_sb))
-		blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
-	mutex_unlock(&inode->i_mutex);
-	if (barrier_done < 0)
-		return barrier_done;
-	return (err < 0) ? -EIO : 0;
-}
-
-/* taken fs/buffer.c:__block_commit_write */
-int reiserfs_commit_page(struct inode *inode, struct page *page,
-			 unsigned from, unsigned to)
-{
-	unsigned block_start, block_end;
-	int partial = 0;
-	unsigned blocksize;
-	struct buffer_head *bh, *head;
-	unsigned long i_size_index = inode->i_size >> PAGE_CACHE_SHIFT;
-	int new;
-	int logit = reiserfs_file_data_log(inode);
-	struct super_block *s = inode->i_sb;
-	int bh_per_page = PAGE_CACHE_SIZE / s->s_blocksize;
-	struct reiserfs_transaction_handle th;
-	int ret = 0;
-
-	th.t_trans_id = 0;
-	blocksize = 1 << inode->i_blkbits;
-
-	if (logit) {
-		reiserfs_write_lock(s);
-		ret = journal_begin(&th, s, bh_per_page + 1);
-		if (ret)
-			goto drop_write_lock;
-		reiserfs_update_inode_transaction(inode);
-	}
-	for (bh = head = page_buffers(page), block_start = 0;
-	     bh != head || !block_start;
-	     block_start = block_end, bh = bh->b_this_page) {
-
-		new = buffer_new(bh);
-		clear_buffer_new(bh);
-		block_end = block_start + blocksize;
-		if (block_end <= from || block_start >= to) {
-			if (!buffer_uptodate(bh))
-				partial = 1;
-		} else {
-			set_buffer_uptodate(bh);
-			if (logit) {
-				reiserfs_prepare_for_journal(s, bh, 1);
-				journal_mark_dirty(&th, s, bh);
-			} else if (!buffer_dirty(bh)) {
-				mark_buffer_dirty(bh);
-				/* do data=ordered on any page past the end
-				 * of file and any buffer marked BH_New.
-				 */
-				if (reiserfs_data_ordered(inode->i_sb) &&
-				    (new || page->index >= i_size_index)) {
-					reiserfs_add_ordered_list(inode, bh);
-				}
-			}
-		}
-	}
-	if (logit) {
-		ret = journal_end(&th, s, bh_per_page + 1);
-	      drop_write_lock:
-		reiserfs_write_unlock(s);
-	}
-	/*
-	 * If this is a partial write which happened to make all buffers
-	 * uptodate then we can optimize away a bogus readpage() for
-	 * the next read(). Here we 'discover' whether the page went
-	 * uptodate as a result of this (potentially partial) write.
-	 */
-	if (!partial)
-		SetPageUptodate(page);
-	return ret;
-}
-
-/* Write @count bytes at position @ppos in a file indicated by @file
-   from the buffer @buf.
-
-   generic_file_write() is only appropriate for filesystems that are not seeking to optimize performance and want
-   something simple that works.  It is not for serious use by general purpose filesystems, excepting the one that it was
-   written for (ext2/3).  This is for several reasons:
-
-   * It has no understanding of any filesystem specific optimizations.
-
-   * It enters the filesystem repeatedly for each page that is written.
-
-   * It depends on reiserfs_get_block() function which if implemented by reiserfs performs costly search_by_key
-   * operation for each page it is supplied with. By contrast reiserfs_file_write() feeds as much as possible at a time
-   * to reiserfs which allows for fewer tree traversals.
-
-   * Each indirect pointer insertion takes a lot of cpu, because it involves memory moves inside of blocks.
-
-   * Asking the block allocation code for blocks one at a time is slightly less efficient.
-
-   All of these reasons for not using only generic file write were understood back when reiserfs was first miscoded to
-   use it, but we were in a hurry to make code freeze, and so it couldn't be revised then.  This new code should make
-   things right finally.
-
-   Future Features: providing search_by_key with hints.
-
-*/
-static ssize_t reiserfs_file_write(struct file *file,	/* the file we are going to write into */
-				   const char __user * buf,	/*  pointer to user supplied data
-								   (in userspace) */
-				   size_t count,	/* amount of bytes to write */
-				   loff_t * ppos	/* pointer to position in file that we start writing at. Should be updated to
-							 * new current position before returning. */
-				   )
-{
-	struct inode *inode = file->f_path.dentry->d_inode;	// Inode of the file that we are writing to.
-	/* To simplify coding at this time, we store
-	   locked pages in array for now */
-	struct reiserfs_transaction_handle th;
-	th.t_trans_id = 0;
-
-	/* If a filesystem is converted from 3.5 to 3.6, we'll have v3.5 items
-	* lying around (most of the disk, in fact). Despite the filesystem
-	* now being a v3.6 format, the old items still can't support large
-	* file sizes. Catch this case here, as the rest of the VFS layer is
-	* oblivious to the different limitations between old and new items.
-	* reiserfs_setattr catches this for truncates. This chunk is lifted
-	* from generic_write_checks. */
-	if (get_inode_item_key_version (inode) == KEY_FORMAT_3_5 &&
-	    *ppos + count > MAX_NON_LFS) {
-		if (*ppos >= MAX_NON_LFS) {
-			return -EFBIG;
-		}
-		if (count > MAX_NON_LFS - (unsigned long)*ppos)
-			count = MAX_NON_LFS - (unsigned long)*ppos;
-	}
-
-	return do_sync_write(file, buf, count, ppos);
-}
-
-const struct file_operations reiserfs_file_operations = {
-	.read = do_sync_read,
-	.write = reiserfs_file_write,
-	.unlocked_ioctl = reiserfs_ioctl,
-#ifdef CONFIG_COMPAT
-	.compat_ioctl = reiserfs_compat_ioctl,
-#endif
-	.mmap = generic_file_mmap,
-	.open = reiserfs_file_open,
-	.release = reiserfs_file_release,
-	.fsync = reiserfs_sync_file,
-	.aio_read = generic_file_aio_read,
-	.aio_write = generic_file_aio_write,
-	.splice_read = generic_file_splice_read,
-	.splice_write = generic_file_splice_write,
-	.llseek = generic_file_llseek,
-};
-
-const struct inode_operations reiserfs_file_inode_operations = {
-	.truncate = reiserfs_vfs_truncate_file,
-	.setattr = reiserfs_setattr,
-	.setxattr = reiserfs_setxattr,
-	.getxattr = reiserfs_getxattr,
-	.listxattr = reiserfs_listxattr,
-	.removexattr = reiserfs_removexattr,
-	.permission = reiserfs_permission,
-	.get_acl = reiserfs_get_acl,
-};