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9464b9591e
As of RHEL 7.5 the mainline fops.iterate() method was added to the file_operations structure and is correctly detected by the configure script. Normally this is what we want, but in order to maintain KABI compatibility the RHEL change additionally does the following: * Requires that callers intending to use this extended interface set the FMODE_KABI_ITERATE flag on the file structure when opening the directory. * Adds the fops.iterate() method to the end of the structure, without removing fops.readdir(). This change updates the configure check to ignore the RHEL 7.5+ variant of fops.iterate() when detected. Instead fallback to the fops.readdir() interface which will be available. Finally, add the 'zpl_' prefix to the directory context wrappers to avoid colliding with the kernel provided symbols when both the fops.iterate() and fops.readdir() are provided by the kernel. Reviewed-by: Olaf Faaland <faaland1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #7460 Closes #7463
90 lines
3.8 KiB
C
90 lines
3.8 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) 2010, Oracle and/or its affiliates. All rights reserved.
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*/
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#ifndef _SYS_FS_ZFS_VNOPS_H
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#define _SYS_FS_ZFS_VNOPS_H
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#include <sys/vnode.h>
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#include <sys/xvattr.h>
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#include <sys/uio.h>
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#include <sys/cred.h>
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#include <sys/fcntl.h>
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#include <sys/pathname.h>
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#include <sys/zpl.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern int zfs_open(struct inode *ip, int mode, int flag, cred_t *cr);
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extern int zfs_close(struct inode *ip, int flag, cred_t *cr);
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extern int zfs_holey(struct inode *ip, int cmd, loff_t *off);
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extern int zfs_read(struct inode *ip, uio_t *uio, int ioflag, cred_t *cr);
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extern int zfs_write(struct inode *ip, uio_t *uio, int ioflag, cred_t *cr);
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extern int zfs_access(struct inode *ip, int mode, int flag, cred_t *cr);
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extern int zfs_lookup(struct inode *dip, char *nm, struct inode **ipp,
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int flags, cred_t *cr, int *direntflags, pathname_t *realpnp);
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extern int zfs_create(struct inode *dip, char *name, vattr_t *vap, int excl,
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int mode, struct inode **ipp, cred_t *cr, int flag, vsecattr_t *vsecp);
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extern int zfs_tmpfile(struct inode *dip, vattr_t *vap, int excl,
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int mode, struct inode **ipp, cred_t *cr, int flag, vsecattr_t *vsecp);
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extern int zfs_remove(struct inode *dip, char *name, cred_t *cr, int flags);
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extern int zfs_mkdir(struct inode *dip, char *dirname, vattr_t *vap,
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struct inode **ipp, cred_t *cr, int flags, vsecattr_t *vsecp);
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extern int zfs_rmdir(struct inode *dip, char *name, struct inode *cwd,
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cred_t *cr, int flags);
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extern int zfs_readdir(struct inode *ip, zpl_dir_context_t *ctx, cred_t *cr);
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extern int zfs_fsync(struct inode *ip, int syncflag, cred_t *cr);
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extern int zfs_getattr(struct inode *ip, vattr_t *vap, int flag, cred_t *cr);
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extern int zfs_getattr_fast(struct inode *ip, struct kstat *sp);
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extern int zfs_setattr(struct inode *ip, vattr_t *vap, int flag, cred_t *cr);
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extern int zfs_rename(struct inode *sdip, char *snm, struct inode *tdip,
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char *tnm, cred_t *cr, int flags);
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extern int zfs_symlink(struct inode *dip, char *name, vattr_t *vap,
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char *link, struct inode **ipp, cred_t *cr, int flags);
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extern int zfs_readlink(struct inode *ip, uio_t *uio, cred_t *cr);
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extern int zfs_link(struct inode *tdip, struct inode *sip,
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char *name, cred_t *cr, int flags);
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extern void zfs_inactive(struct inode *ip);
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extern int zfs_space(struct inode *ip, int cmd, flock64_t *bfp, int flag,
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offset_t offset, cred_t *cr);
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extern int zfs_fid(struct inode *ip, fid_t *fidp);
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extern int zfs_getsecattr(struct inode *ip, vsecattr_t *vsecp, int flag,
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cred_t *cr);
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extern int zfs_setsecattr(struct inode *ip, vsecattr_t *vsecp, int flag,
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cred_t *cr);
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extern int zfs_getpage(struct inode *ip, struct page *pl[], int nr_pages);
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extern int zfs_putpage(struct inode *ip, struct page *pp,
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struct writeback_control *wbc);
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extern int zfs_dirty_inode(struct inode *ip, int flags);
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extern int zfs_map(struct inode *ip, offset_t off, caddr_t *addrp,
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size_t len, unsigned long vm_flags);
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extern void zfs_iput_async(struct inode *ip);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SYS_FS_ZFS_VNOPS_H */
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