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28eb9213d8
Directly changing inode->i_nlink is deprecated in Linux 3.2 by commit SHA: bfe8684869601dacfcb2cd69ef8cfd9045f62170 Use the new set_nlink() kernel function instead. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes: #462
113 lines
3.0 KiB
C
113 lines
3.0 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright (C) 2011 Lawrence Livermore National Security, LLC.
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*/
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#ifndef _ZFS_VFS_H
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#define _ZFS_VFS_H
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/*
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* 2.6.28 API change,
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* Added insert_inode_locked() helper function, prior to this most callers
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* used insert_inode_hash(). The older method doesn't check for collisions
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* in the inode_hashtable but it still acceptible for use.
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*/
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#ifndef HAVE_INSERT_INODE_LOCKED
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static inline int
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insert_inode_locked(struct inode *ip)
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{
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insert_inode_hash(ip);
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return (0);
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}
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#endif /* HAVE_INSERT_INODE_LOCKED */
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/*
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* 2.6.35 API change,
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* Add truncate_setsize() if it is not exported by the Linux kernel.
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*
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* Truncate the inode and pages associated with the inode. The pages are
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* unmapped and removed from cache.
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*/
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#ifndef HAVE_TRUNCATE_SETSIZE
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static inline void
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truncate_setsize(struct inode *ip, loff_t new)
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{
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struct address_space *mapping = ip->i_mapping;
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i_size_write(ip, new);
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unmap_mapping_range(mapping, new + PAGE_SIZE - 1, 0, 1);
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truncate_inode_pages(mapping, new);
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unmap_mapping_range(mapping, new + PAGE_SIZE - 1, 0, 1);
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}
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#endif /* HAVE_TRUNCATE_SETSIZE */
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#if defined(HAVE_BDI) && !defined(HAVE_BDI_SETUP_AND_REGISTER)
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/*
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* 2.6.34 API change,
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* Add bdi_setup_and_register() function if not yet provided by kernel.
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* It is used to quickly initialize and register a BDI for the filesystem.
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*/
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extern atomic_long_t zfs_bdi_seq;
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static inline int
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bdi_setup_and_register(struct backing_dev_info *bdi,char *name,unsigned int cap)
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{
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char tmp[32];
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int error;
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bdi->name = name;
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bdi->capabilities = cap;
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error = bdi_init(bdi);
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if (error)
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return (error);
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sprintf(tmp, "%.28s%s", name, "-%d");
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error = bdi_register(bdi, NULL, tmp,
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atomic_long_inc_return(&zfs_bdi_seq));
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if (error) {
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bdi_destroy(bdi);
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return (error);
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}
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return (error);
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}
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#endif /* HAVE_BDI && !HAVE_BDI_SETUP_AND_REGISTER */
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/*
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* 3.2-rc1 API change,
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* Add set_nlink() if it is not exported by the Linux kernel.
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*
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* i_nlink is read-only in Linux 3.2, but it can be set directly in
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* earlier kernels.
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*/
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#ifndef HAVE_SET_NLINK
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static inline void
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set_nlink(struct inode *inode, unsigned int nlink)
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{
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inode->i_nlink = nlink;
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}
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#endif /* HAVE_SET_NLINK */
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#endif /* _ZFS_VFS_H */
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