forked from luck/tmp_suning_uos_patched
2f246fd0f1
These changes are crafted based on the similar conversion done to ext2 by Nick Piggin. * Remove the deprecated ->truncate vector. Let exofs_setattr take care of on-disk size updates. * Call truncate_pagecache on the unused pages if write_begin/end fails. * Cleanup exofs_delete_inode that did stupid inode writes and updates on an inode that will be removed. * And finally get rid of exofs_get_block. We never had any blocks it was all for calling nobh_truncate_page. nobh_truncate_page is not actually needed in exofs since the last page is complete and gone, just like all the other pages. There is no partial blocks in exofs. I've tested with this patch, and there are no apparent failures, so far. CC: Nick Piggin <npiggin@suse.de> CC: Christoph Hellwig <hch@lst.de> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
91 lines
2.5 KiB
C
91 lines
2.5 KiB
C
/*
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* Copyright (C) 2005, 2006
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* Avishay Traeger (avishay@gmail.com)
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* Copyright (C) 2008, 2009
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* Boaz Harrosh <bharrosh@panasas.com>
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*
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* Copyrights for code taken from ext2:
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* Copyright (C) 1992, 1993, 1994, 1995
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* Remy Card (card@masi.ibp.fr)
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* Laboratoire MASI - Institut Blaise Pascal
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* Universite Pierre et Marie Curie (Paris VI)
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* from
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* linux/fs/minix/inode.c
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* Copyright (C) 1991, 1992 Linus Torvalds
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*
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* This file is part of exofs.
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*
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* exofs is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation. Since it is based on ext2, and the only
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* valid version of GPL for the Linux kernel is version 2, the only valid
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* version of GPL for exofs is version 2.
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*
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* exofs is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with exofs; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <linux/buffer_head.h>
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#include "exofs.h"
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static int exofs_release_file(struct inode *inode, struct file *filp)
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{
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return 0;
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}
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static int exofs_file_fsync(struct file *filp, int datasync)
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{
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int ret;
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struct address_space *mapping = filp->f_mapping;
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struct inode *inode = mapping->host;
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struct super_block *sb;
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ret = filemap_write_and_wait(mapping);
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if (ret)
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return ret;
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/* sync the inode attributes */
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ret = write_inode_now(inode, 1);
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/* This is a good place to write the sb */
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/* TODO: Sechedule an sb-sync on create */
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sb = inode->i_sb;
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if (sb->s_dirt)
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exofs_sync_fs(sb, 1);
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return ret;
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}
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static int exofs_flush(struct file *file, fl_owner_t id)
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{
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exofs_file_fsync(file, 1);
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/* TODO: Flush the OSD target */
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return 0;
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}
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const struct file_operations exofs_file_operations = {
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.llseek = generic_file_llseek,
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.read = do_sync_read,
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.write = do_sync_write,
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.aio_read = generic_file_aio_read,
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.aio_write = generic_file_aio_write,
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.mmap = generic_file_mmap,
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.open = generic_file_open,
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.release = exofs_release_file,
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.fsync = exofs_file_fsync,
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.flush = exofs_flush,
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.splice_read = generic_file_splice_read,
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.splice_write = generic_file_splice_write,
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};
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const struct inode_operations exofs_file_inode_operations = {
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.setattr = exofs_setattr,
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};
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