diff options
Diffstat (limited to 'ANDROID_3.4.5/include/linux/fsnotify.h')
-rw-r--r-- | ANDROID_3.4.5/include/linux/fsnotify.h | 342 |
1 files changed, 0 insertions, 342 deletions
diff --git a/ANDROID_3.4.5/include/linux/fsnotify.h b/ANDROID_3.4.5/include/linux/fsnotify.h deleted file mode 100644 index a6dfe694..00000000 --- a/ANDROID_3.4.5/include/linux/fsnotify.h +++ /dev/null @@ -1,342 +0,0 @@ -#ifndef _LINUX_FS_NOTIFY_H -#define _LINUX_FS_NOTIFY_H - -/* - * include/linux/fsnotify.h - generic hooks for filesystem notification, to - * reduce in-source duplication from both dnotify and inotify. - * - * We don't compile any of this away in some complicated menagerie of ifdefs. - * Instead, we rely on the code inside to optimize away as needed. - * - * (C) Copyright 2005 Robert Love - */ - -#include <linux/fsnotify_backend.h> -#include <linux/audit.h> -#include <linux/slab.h> -#include <linux/bug.h> - -/* - * fsnotify_d_instantiate - instantiate a dentry for inode - */ -static inline void fsnotify_d_instantiate(struct dentry *dentry, - struct inode *inode) -{ - __fsnotify_d_instantiate(dentry, inode); -} - -/* Notify this dentry's parent about a child's events. */ -static inline int fsnotify_parent(struct path *path, struct dentry *dentry, __u32 mask) -{ - if (!dentry) - dentry = path->dentry; - - return __fsnotify_parent(path, dentry, mask); -} - -/* simple call site for access decisions */ -static inline int fsnotify_perm(struct file *file, int mask) -{ - struct path *path = &file->f_path; - struct inode *inode = path->dentry->d_inode; - __u32 fsnotify_mask = 0; - int ret; - - if (file->f_mode & FMODE_NONOTIFY) - return 0; - if (!(mask & (MAY_READ | MAY_OPEN))) - return 0; - if (mask & MAY_OPEN) - fsnotify_mask = FS_OPEN_PERM; - else if (mask & MAY_READ) - fsnotify_mask = FS_ACCESS_PERM; - else - BUG(); - - ret = fsnotify_parent(path, NULL, fsnotify_mask); - if (ret) - return ret; - - return fsnotify(inode, fsnotify_mask, path, FSNOTIFY_EVENT_PATH, NULL, 0); -} - -/* - * fsnotify_d_move - dentry has been moved - */ -static inline void fsnotify_d_move(struct dentry *dentry) -{ - /* - * On move we need to update dentry->d_flags to indicate if the new parent - * cares about events from this dentry. - */ - __fsnotify_update_dcache_flags(dentry); -} - -/* - * fsnotify_link_count - inode's link count changed - */ -static inline void fsnotify_link_count(struct inode *inode) -{ - fsnotify(inode, FS_ATTRIB, inode, FSNOTIFY_EVENT_INODE, NULL, 0); -} - -/* - * fsnotify_move - file old_name at old_dir was moved to new_name at new_dir - */ -static inline void fsnotify_move(struct inode *old_dir, struct inode *new_dir, - const unsigned char *old_name, - int isdir, struct inode *target, struct dentry *moved) -{ - struct inode *source = moved->d_inode; - u32 fs_cookie = fsnotify_get_cookie(); - __u32 old_dir_mask = (FS_EVENT_ON_CHILD | FS_MOVED_FROM); - __u32 new_dir_mask = (FS_EVENT_ON_CHILD | FS_MOVED_TO); - const unsigned char *new_name = moved->d_name.name; - - if (old_dir == new_dir) - old_dir_mask |= FS_DN_RENAME; - - if (isdir) { - old_dir_mask |= FS_ISDIR; - new_dir_mask |= FS_ISDIR; - } - - fsnotify(old_dir, old_dir_mask, old_dir, FSNOTIFY_EVENT_INODE, old_name, fs_cookie); - fsnotify(new_dir, new_dir_mask, new_dir, FSNOTIFY_EVENT_INODE, new_name, fs_cookie); - - if (target) - fsnotify_link_count(target); - - if (source) - fsnotify(source, FS_MOVE_SELF, moved->d_inode, FSNOTIFY_EVENT_INODE, NULL, 0); - audit_inode_child(moved, new_dir); -} - -/* - * fsnotify_inode_delete - and inode is being evicted from cache, clean up is needed - */ -static inline void fsnotify_inode_delete(struct inode *inode) -{ - __fsnotify_inode_delete(inode); -} - -/* - * fsnotify_vfsmount_delete - a vfsmount is being destroyed, clean up is needed - */ -static inline void fsnotify_vfsmount_delete(struct vfsmount *mnt) -{ - __fsnotify_vfsmount_delete(mnt); -} - -/* - * fsnotify_nameremove - a filename was removed from a directory - */ -static inline void fsnotify_nameremove(struct dentry *dentry, int isdir) -{ - __u32 mask = FS_DELETE; - - if (isdir) - mask |= FS_ISDIR; - - fsnotify_parent(NULL, dentry, mask); -} - -/* - * fsnotify_inoderemove - an inode is going away - */ -static inline void fsnotify_inoderemove(struct inode *inode) -{ - fsnotify(inode, FS_DELETE_SELF, inode, FSNOTIFY_EVENT_INODE, NULL, 0); - __fsnotify_inode_delete(inode); -} - -/* - * fsnotify_create - 'name' was linked in - */ -static inline void fsnotify_create(struct inode *inode, struct dentry *dentry) -{ - audit_inode_child(dentry, inode); - - fsnotify(inode, FS_CREATE, dentry->d_inode, FSNOTIFY_EVENT_INODE, dentry->d_name.name, 0); -} - -/* - * fsnotify_link - new hardlink in 'inode' directory - * Note: We have to pass also the linked inode ptr as some filesystems leave - * new_dentry->d_inode NULL and instantiate inode pointer later - */ -static inline void fsnotify_link(struct inode *dir, struct inode *inode, struct dentry *new_dentry) -{ - fsnotify_link_count(inode); - audit_inode_child(new_dentry, dir); - - fsnotify(dir, FS_CREATE, inode, FSNOTIFY_EVENT_INODE, new_dentry->d_name.name, 0); -} - -/* - * fsnotify_mkdir - directory 'name' was created - */ -static inline void fsnotify_mkdir(struct inode *inode, struct dentry *dentry) -{ - __u32 mask = (FS_CREATE | FS_ISDIR); - struct inode *d_inode = dentry->d_inode; - - audit_inode_child(dentry, inode); - - fsnotify(inode, mask, d_inode, FSNOTIFY_EVENT_INODE, dentry->d_name.name, 0); -} - -/* - * fsnotify_access - file was read - */ -static inline void fsnotify_access(struct file *file) -{ - struct path *path = &file->f_path; - struct inode *inode = path->dentry->d_inode; - __u32 mask = FS_ACCESS; - - if (S_ISDIR(inode->i_mode)) - mask |= FS_ISDIR; - - if (!(file->f_mode & FMODE_NONOTIFY)) { - fsnotify_parent(path, NULL, mask); - fsnotify(inode, mask, path, FSNOTIFY_EVENT_PATH, NULL, 0); - } -} - -/* - * fsnotify_modify - file was modified - */ -static inline void fsnotify_modify(struct file *file) -{ - struct path *path = &file->f_path; - struct inode *inode = path->dentry->d_inode; - __u32 mask = FS_MODIFY; - - if (S_ISDIR(inode->i_mode)) - mask |= FS_ISDIR; - - if (!(file->f_mode & FMODE_NONOTIFY)) { - fsnotify_parent(path, NULL, mask); - fsnotify(inode, mask, path, FSNOTIFY_EVENT_PATH, NULL, 0); - } -} - -/* - * fsnotify_open - file was opened - */ -static inline void fsnotify_open(struct file *file) -{ - struct path *path = &file->f_path; - struct inode *inode = path->dentry->d_inode; - __u32 mask = FS_OPEN; - - if (S_ISDIR(inode->i_mode)) - mask |= FS_ISDIR; - - fsnotify_parent(path, NULL, mask); - fsnotify(inode, mask, path, FSNOTIFY_EVENT_PATH, NULL, 0); -} - -/* - * fsnotify_close - file was closed - */ -static inline void fsnotify_close(struct file *file) -{ - struct path *path = &file->f_path; - struct inode *inode = file->f_path.dentry->d_inode; - fmode_t mode = file->f_mode; - __u32 mask = (mode & FMODE_WRITE) ? FS_CLOSE_WRITE : FS_CLOSE_NOWRITE; - - if (S_ISDIR(inode->i_mode)) - mask |= FS_ISDIR; - - if (!(file->f_mode & FMODE_NONOTIFY)) { - fsnotify_parent(path, NULL, mask); - fsnotify(inode, mask, path, FSNOTIFY_EVENT_PATH, NULL, 0); - } -} - -/* - * fsnotify_xattr - extended attributes were changed - */ -static inline void fsnotify_xattr(struct dentry *dentry) -{ - struct inode *inode = dentry->d_inode; - __u32 mask = FS_ATTRIB; - - if (S_ISDIR(inode->i_mode)) - mask |= FS_ISDIR; - - fsnotify_parent(NULL, dentry, mask); - fsnotify(inode, mask, inode, FSNOTIFY_EVENT_INODE, NULL, 0); -} - -/* - * fsnotify_change - notify_change event. file was modified and/or metadata - * was changed. - */ -static inline void fsnotify_change(struct dentry *dentry, unsigned int ia_valid) -{ - struct inode *inode = dentry->d_inode; - __u32 mask = 0; - - if (ia_valid & ATTR_UID) - mask |= FS_ATTRIB; - if (ia_valid & ATTR_GID) - mask |= FS_ATTRIB; - if (ia_valid & ATTR_SIZE) - mask |= FS_MODIFY; - - /* both times implies a utime(s) call */ - if ((ia_valid & (ATTR_ATIME | ATTR_MTIME)) == (ATTR_ATIME | ATTR_MTIME)) - mask |= FS_ATTRIB; - else if (ia_valid & ATTR_ATIME) - mask |= FS_ACCESS; - else if (ia_valid & ATTR_MTIME) - mask |= FS_MODIFY; - - if (ia_valid & ATTR_MODE) - mask |= FS_ATTRIB; - - if (mask) { - if (S_ISDIR(inode->i_mode)) - mask |= FS_ISDIR; - - fsnotify_parent(NULL, dentry, mask); - fsnotify(inode, mask, inode, FSNOTIFY_EVENT_INODE, NULL, 0); - } -} - -#if defined(CONFIG_FSNOTIFY) /* notify helpers */ - -/* - * fsnotify_oldname_init - save off the old filename before we change it - */ -static inline const unsigned char *fsnotify_oldname_init(const unsigned char *name) -{ - return kstrdup(name, GFP_KERNEL); -} - -/* - * fsnotify_oldname_free - free the name we got from fsnotify_oldname_init - */ -static inline void fsnotify_oldname_free(const unsigned char *old_name) -{ - kfree(old_name); -} - -#else /* CONFIG_FSNOTIFY */ - -static inline const char *fsnotify_oldname_init(const unsigned char *name) -{ - return NULL; -} - -static inline void fsnotify_oldname_free(const unsigned char *old_name) -{ -} - -#endif /* CONFIG_FSNOTIFY */ - -#endif /* _LINUX_FS_NOTIFY_H */ |