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72d3fa215f
Sponsored-by: https://despairlabs.com/sponsor/ Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Tino Reichardt <milky-zfs@mcmilk.de> Signed-off-by: Rob Norris <robn@despairlabs.com> Closes #16479
223 lines
7.4 KiB
C
223 lines
7.4 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 https://opensource.org/licenses/CDDL-1.0.
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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 _SYS_ZPL_H
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#define _SYS_ZPL_H
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#include <sys/mntent.h>
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#include <sys/vfs.h>
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#include <linux/aio.h>
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#include <linux/dcache_compat.h>
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#include <linux/exportfs.h>
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#include <linux/falloc.h>
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#include <linux/parser.h>
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#include <linux/vfs_compat.h>
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#include <linux/writeback.h>
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#include <linux/xattr_compat.h>
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/* zpl_inode.c */
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extern void zpl_vap_init(vattr_t *vap, struct inode *dir,
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umode_t mode, cred_t *cr, zidmap_t *mnt_ns);
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extern const struct inode_operations zpl_inode_operations;
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extern const struct inode_operations zpl_dir_inode_operations;
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extern const struct inode_operations zpl_symlink_inode_operations;
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extern const struct inode_operations zpl_special_inode_operations;
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/* zpl_file.c */
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extern const struct address_space_operations zpl_address_space_operations;
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extern const struct file_operations zpl_file_operations;
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extern const struct file_operations zpl_dir_file_operations;
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/* zpl_super.c */
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extern void zpl_prune_sb(uint64_t nr_to_scan, void *arg);
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extern const struct super_operations zpl_super_operations;
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extern const struct export_operations zpl_export_operations;
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extern struct file_system_type zpl_fs_type;
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/* zpl_xattr.c */
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extern ssize_t zpl_xattr_list(struct dentry *dentry, char *buf, size_t size);
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extern int zpl_xattr_security_init(struct inode *ip, struct inode *dip,
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const struct qstr *qstr);
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#if defined(CONFIG_FS_POSIX_ACL)
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#if defined(HAVE_SET_ACL_IDMAP_DENTRY)
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extern int zpl_set_acl(struct mnt_idmap *idmap, struct dentry *dentry,
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struct posix_acl *acl, int type);
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#elif defined(HAVE_SET_ACL_USERNS)
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extern int zpl_set_acl(struct user_namespace *userns, struct inode *ip,
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struct posix_acl *acl, int type);
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#elif defined(HAVE_SET_ACL_USERNS_DENTRY_ARG2)
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extern int zpl_set_acl(struct user_namespace *userns, struct dentry *dentry,
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struct posix_acl *acl, int type);
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#else
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extern int zpl_set_acl(struct inode *ip, struct posix_acl *acl, int type);
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#endif /* HAVE_SET_ACL_USERNS */
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#if defined(HAVE_GET_ACL_RCU) || defined(HAVE_GET_INODE_ACL)
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extern struct posix_acl *zpl_get_acl(struct inode *ip, int type, bool rcu);
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#elif defined(HAVE_GET_ACL)
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extern struct posix_acl *zpl_get_acl(struct inode *ip, int type);
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#endif
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extern int zpl_init_acl(struct inode *ip, struct inode *dir);
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extern int zpl_chmod_acl(struct inode *ip);
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#else
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static inline int
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zpl_init_acl(struct inode *ip, struct inode *dir)
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{
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return (0);
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}
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static inline int
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zpl_chmod_acl(struct inode *ip)
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{
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return (0);
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}
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#endif /* CONFIG_FS_POSIX_ACL */
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extern xattr_handler_t *zpl_xattr_handlers[];
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/* zpl_ctldir.c */
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extern const struct file_operations zpl_fops_root;
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extern const struct inode_operations zpl_ops_root;
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extern const struct file_operations zpl_fops_snapdir;
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extern const struct inode_operations zpl_ops_snapdir;
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extern const struct file_operations zpl_fops_shares;
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extern const struct inode_operations zpl_ops_shares;
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/* zpl_file_range.c */
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/* handlers for file_operations of the same name */
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extern ssize_t zpl_copy_file_range(struct file *src_file, loff_t src_off,
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struct file *dst_file, loff_t dst_off, size_t len, unsigned int flags);
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extern loff_t zpl_remap_file_range(struct file *src_file, loff_t src_off,
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struct file *dst_file, loff_t dst_off, loff_t len, unsigned int flags);
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extern int zpl_clone_file_range(struct file *src_file, loff_t src_off,
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struct file *dst_file, loff_t dst_off, uint64_t len);
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extern int zpl_dedupe_file_range(struct file *src_file, loff_t src_off,
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struct file *dst_file, loff_t dst_off, uint64_t len);
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/* compat for FICLONE/FICLONERANGE/FIDEDUPERANGE ioctls */
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typedef struct {
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int64_t fcr_src_fd;
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uint64_t fcr_src_offset;
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uint64_t fcr_src_length;
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uint64_t fcr_dest_offset;
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} zfs_ioc_compat_file_clone_range_t;
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typedef struct {
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int64_t fdri_dest_fd;
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uint64_t fdri_dest_offset;
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uint64_t fdri_bytes_deduped;
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int32_t fdri_status;
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uint32_t fdri_reserved;
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} zfs_ioc_compat_dedupe_range_info_t;
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typedef struct {
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uint64_t fdr_src_offset;
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uint64_t fdr_src_length;
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uint16_t fdr_dest_count;
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uint16_t fdr_reserved1;
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uint32_t fdr_reserved2;
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zfs_ioc_compat_dedupe_range_info_t fdr_info[];
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} zfs_ioc_compat_dedupe_range_t;
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#define ZFS_IOC_COMPAT_FICLONE _IOW(0x94, 9, int)
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#define ZFS_IOC_COMPAT_FICLONERANGE \
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_IOW(0x94, 13, zfs_ioc_compat_file_clone_range_t)
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#define ZFS_IOC_COMPAT_FIDEDUPERANGE \
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_IOWR(0x94, 54, zfs_ioc_compat_dedupe_range_t)
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extern long zpl_ioctl_ficlone(struct file *filp, void *arg);
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extern long zpl_ioctl_ficlonerange(struct file *filp, void *arg);
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extern long zpl_ioctl_fideduperange(struct file *filp, void *arg);
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#if defined(HAVE_INODE_TIMESTAMP_TRUNCATE)
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#define zpl_inode_timestamp_truncate(ts, ip) timestamp_truncate(ts, ip)
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#elif defined(HAVE_INODE_TIMESPEC64_TIMES)
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#define zpl_inode_timestamp_truncate(ts, ip) \
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timespec64_trunc(ts, (ip)->i_sb->s_time_gran)
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#else
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#define zpl_inode_timestamp_truncate(ts, ip) \
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timespec_trunc(ts, (ip)->i_sb->s_time_gran)
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#endif
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#if defined(HAVE_INODE_OWNER_OR_CAPABLE)
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#define zpl_inode_owner_or_capable(ns, ip) inode_owner_or_capable(ip)
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#elif defined(HAVE_INODE_OWNER_OR_CAPABLE_USERNS)
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#define zpl_inode_owner_or_capable(ns, ip) inode_owner_or_capable(ns, ip)
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#elif defined(HAVE_INODE_OWNER_OR_CAPABLE_IDMAP)
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#define zpl_inode_owner_or_capable(idmap, ip) inode_owner_or_capable(idmap, ip)
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#else
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#error "Unsupported kernel"
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#endif
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#if defined(HAVE_SETATTR_PREPARE_USERNS) || defined(HAVE_SETATTR_PREPARE_IDMAP)
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#define zpl_setattr_prepare(ns, dentry, ia) setattr_prepare(ns, dentry, ia)
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#else
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/*
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* Use kernel-provided version, or our own from
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* linux/vfs_compat.h
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*/
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#define zpl_setattr_prepare(ns, dentry, ia) setattr_prepare(dentry, ia)
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#endif
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#ifdef HAVE_INODE_GET_CTIME
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#define zpl_inode_get_ctime(ip) inode_get_ctime(ip)
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#else
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#define zpl_inode_get_ctime(ip) (ip->i_ctime)
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#endif
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#ifdef HAVE_INODE_SET_CTIME_TO_TS
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#define zpl_inode_set_ctime_to_ts(ip, ts) inode_set_ctime_to_ts(ip, ts)
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#else
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#define zpl_inode_set_ctime_to_ts(ip, ts) (ip->i_ctime = ts)
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#endif
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#ifdef HAVE_INODE_GET_ATIME
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#define zpl_inode_get_atime(ip) inode_get_atime(ip)
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#else
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#define zpl_inode_get_atime(ip) (ip->i_atime)
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#endif
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#ifdef HAVE_INODE_SET_ATIME_TO_TS
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#define zpl_inode_set_atime_to_ts(ip, ts) inode_set_atime_to_ts(ip, ts)
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#else
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#define zpl_inode_set_atime_to_ts(ip, ts) (ip->i_atime = ts)
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#endif
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#ifdef HAVE_INODE_GET_MTIME
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#define zpl_inode_get_mtime(ip) inode_get_mtime(ip)
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#else
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#define zpl_inode_get_mtime(ip) (ip->i_mtime)
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#endif
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#ifdef HAVE_INODE_SET_MTIME_TO_TS
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#define zpl_inode_set_mtime_to_ts(ip, ts) inode_set_mtime_to_ts(ip, ts)
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#else
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#define zpl_inode_set_mtime_to_ts(ip, ts) (ip->i_mtime = ts)
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#endif
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#endif /* _SYS_ZPL_H */
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