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- /* SPDX-License-Identifier: GPL-2.0-only */
- /*
- * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
- * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
- */
- #ifndef __INODE_DOT_H__
- #define __INODE_DOT_H__
- #include <linux/fs.h>
- #include <linux/buffer_head.h>
- #include <linux/mm.h>
- #include "util.h"
- bool gfs2_release_folio(struct folio *folio, gfp_t gfp_mask);
- extern int gfs2_internal_read(struct gfs2_inode *ip,
- char *buf, loff_t *pos, unsigned size);
- extern void gfs2_set_aops(struct inode *inode);
- static inline int gfs2_is_stuffed(const struct gfs2_inode *ip)
- {
- return !ip->i_height;
- }
- static inline int gfs2_is_jdata(const struct gfs2_inode *ip)
- {
- return ip->i_diskflags & GFS2_DIF_JDATA;
- }
- static inline bool gfs2_is_ordered(const struct gfs2_sbd *sdp)
- {
- return sdp->sd_args.ar_data == GFS2_DATA_ORDERED;
- }
- static inline bool gfs2_is_writeback(const struct gfs2_sbd *sdp)
- {
- return sdp->sd_args.ar_data == GFS2_DATA_WRITEBACK;
- }
- static inline int gfs2_is_dir(const struct gfs2_inode *ip)
- {
- return S_ISDIR(ip->i_inode.i_mode);
- }
- static inline void gfs2_set_inode_blocks(struct inode *inode, u64 blocks)
- {
- inode->i_blocks = blocks <<
- (GFS2_SB(inode)->sd_sb.sb_bsize_shift - GFS2_BASIC_BLOCK_SHIFT);
- }
- static inline u64 gfs2_get_inode_blocks(const struct inode *inode)
- {
- return inode->i_blocks >>
- (GFS2_SB(inode)->sd_sb.sb_bsize_shift - GFS2_BASIC_BLOCK_SHIFT);
- }
- static inline void gfs2_add_inode_blocks(struct inode *inode, s64 change)
- {
- change <<= inode->i_blkbits - GFS2_BASIC_BLOCK_SHIFT;
- gfs2_assert(GFS2_SB(inode), (change >= 0 || inode->i_blocks >= -change));
- inode->i_blocks += change;
- }
- static inline int gfs2_check_inum(const struct gfs2_inode *ip, u64 no_addr,
- u64 no_formal_ino)
- {
- return ip->i_no_addr == no_addr && ip->i_no_formal_ino == no_formal_ino;
- }
- static inline void gfs2_inum_out(const struct gfs2_inode *ip,
- struct gfs2_dirent *dent)
- {
- dent->de_inum.no_formal_ino = cpu_to_be64(ip->i_no_formal_ino);
- dent->de_inum.no_addr = cpu_to_be64(ip->i_no_addr);
- }
- static inline int gfs2_check_internal_file_size(struct inode *inode,
- u64 minsize, u64 maxsize)
- {
- u64 size = i_size_read(inode);
- if (size < minsize || size > maxsize)
- goto err;
- if (size & (BIT(inode->i_blkbits) - 1))
- goto err;
- return 0;
- err:
- gfs2_consist_inode(GFS2_I(inode));
- return -EIO;
- }
- extern struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned type,
- u64 no_addr, u64 no_formal_ino,
- unsigned int blktype);
- extern struct inode *gfs2_lookup_by_inum(struct gfs2_sbd *sdp, u64 no_addr,
- u64 no_formal_ino,
- unsigned int blktype);
- extern int gfs2_inode_refresh(struct gfs2_inode *ip);
- extern struct inode *gfs2_lookupi(struct inode *dir, const struct qstr *name,
- int is_root);
- extern int gfs2_permission(struct user_namespace *mnt_userns,
- struct inode *inode, int mask);
- extern struct inode *gfs2_lookup_simple(struct inode *dip, const char *name);
- extern void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf);
- extern int gfs2_open_common(struct inode *inode, struct file *file);
- extern loff_t gfs2_seek_data(struct file *file, loff_t offset);
- extern loff_t gfs2_seek_hole(struct file *file, loff_t offset);
- extern const struct file_operations gfs2_file_fops_nolock;
- extern const struct file_operations gfs2_dir_fops_nolock;
- extern int gfs2_fileattr_get(struct dentry *dentry, struct fileattr *fa);
- extern int gfs2_fileattr_set(struct user_namespace *mnt_userns,
- struct dentry *dentry, struct fileattr *fa);
- extern void gfs2_set_inode_flags(struct inode *inode);
-
- #ifdef CONFIG_GFS2_FS_LOCKING_DLM
- extern const struct file_operations gfs2_file_fops;
- extern const struct file_operations gfs2_dir_fops;
- static inline int gfs2_localflocks(const struct gfs2_sbd *sdp)
- {
- return sdp->sd_args.ar_localflocks;
- }
- #else /* Single node only */
- #define gfs2_file_fops gfs2_file_fops_nolock
- #define gfs2_dir_fops gfs2_dir_fops_nolock
- static inline int gfs2_localflocks(const struct gfs2_sbd *sdp)
- {
- return 1;
- }
- #endif /* CONFIG_GFS2_FS_LOCKING_DLM */
- #endif /* __INODE_DOT_H__ */
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