754661f143
Many struct inode_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
140 lines
3.6 KiB
C
140 lines
3.6 KiB
C
/* internal.h: internal AFS stuff
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*
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* Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef AFS_INTERNAL_H
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#define AFS_INTERNAL_H
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#include <linux/compiler.h>
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#include <linux/kernel.h>
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#include <linux/fs.h>
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#include <linux/pagemap.h>
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/*
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* debug tracing
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*/
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#define kenter(FMT, a...) printk("==> %s("FMT")\n",__FUNCTION__ , ## a)
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#define kleave(FMT, a...) printk("<== %s()"FMT"\n",__FUNCTION__ , ## a)
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#define kdebug(FMT, a...) printk(FMT"\n" , ## a)
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#define kproto(FMT, a...) printk("### "FMT"\n" , ## a)
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#define knet(FMT, a...) printk(FMT"\n" , ## a)
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#ifdef __KDEBUG
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#define _enter(FMT, a...) kenter(FMT , ## a)
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#define _leave(FMT, a...) kleave(FMT , ## a)
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#define _debug(FMT, a...) kdebug(FMT , ## a)
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#define _proto(FMT, a...) kproto(FMT , ## a)
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#define _net(FMT, a...) knet(FMT , ## a)
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#else
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#define _enter(FMT, a...) do { } while(0)
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#define _leave(FMT, a...) do { } while(0)
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#define _debug(FMT, a...) do { } while(0)
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#define _proto(FMT, a...) do { } while(0)
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#define _net(FMT, a...) do { } while(0)
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#endif
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static inline void afs_discard_my_signals(void)
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{
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while (signal_pending(current)) {
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siginfo_t sinfo;
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spin_lock_irq(¤t->sighand->siglock);
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dequeue_signal(current,¤t->blocked, &sinfo);
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spin_unlock_irq(¤t->sighand->siglock);
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}
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}
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/*
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* cell.c
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*/
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extern struct rw_semaphore afs_proc_cells_sem;
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extern struct list_head afs_proc_cells;
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#ifdef AFS_CACHING_SUPPORT
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extern struct cachefs_index_def afs_cache_cell_index_def;
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#endif
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/*
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* dir.c
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*/
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extern const struct inode_operations afs_dir_inode_operations;
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extern const struct file_operations afs_dir_file_operations;
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/*
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* file.c
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*/
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extern const struct address_space_operations afs_fs_aops;
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extern const struct inode_operations afs_file_inode_operations;
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#ifdef AFS_CACHING_SUPPORT
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extern int afs_cache_get_page_cookie(struct page *page,
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struct cachefs_page **_page_cookie);
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#endif
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/*
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* inode.c
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*/
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extern int afs_iget(struct super_block *sb, struct afs_fid *fid,
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struct inode **_inode);
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extern int afs_inode_getattr(struct vfsmount *mnt, struct dentry *dentry,
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struct kstat *stat);
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extern void afs_clear_inode(struct inode *inode);
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/*
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* key_afs.c
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*/
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#ifdef CONFIG_KEYS
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extern int afs_key_register(void);
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extern void afs_key_unregister(void);
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#endif
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/*
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* main.c
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*/
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#ifdef AFS_CACHING_SUPPORT
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extern struct cachefs_netfs afs_cache_netfs;
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#endif
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/*
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* mntpt.c
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*/
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extern const struct inode_operations afs_mntpt_inode_operations;
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extern const struct file_operations afs_mntpt_file_operations;
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extern struct afs_timer afs_mntpt_expiry_timer;
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extern struct afs_timer_ops afs_mntpt_expiry_timer_ops;
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extern unsigned long afs_mntpt_expiry_timeout;
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extern int afs_mntpt_check_symlink(struct afs_vnode *vnode);
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/*
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* super.c
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*/
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extern int afs_fs_init(void);
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extern void afs_fs_exit(void);
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#define AFS_CB_HASH_COUNT (PAGE_SIZE / sizeof(struct list_head))
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extern struct list_head afs_cb_hash_tbl[];
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extern spinlock_t afs_cb_hash_lock;
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#define afs_cb_hash(SRV,FID) \
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afs_cb_hash_tbl[((unsigned long)(SRV) + \
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(FID)->vid + (FID)->vnode + (FID)->unique) % \
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AFS_CB_HASH_COUNT]
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/*
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* proc.c
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*/
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extern int afs_proc_init(void);
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extern void afs_proc_cleanup(void);
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extern int afs_proc_cell_setup(struct afs_cell *cell);
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extern void afs_proc_cell_remove(struct afs_cell *cell);
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#endif /* AFS_INTERNAL_H */
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