Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 1 | #ifndef _LINUX_FS_NOTIFY_H |
| 2 | #define _LINUX_FS_NOTIFY_H |
| 3 | |
| 4 | /* |
| 5 | * include/linux/fsnotify.h - generic hooks for filesystem notification, to |
| 6 | * reduce in-source duplication from both dnotify and inotify. |
| 7 | * |
| 8 | * We don't compile any of this away in some complicated menagerie of ifdefs. |
| 9 | * Instead, we rely on the code inside to optimize away as needed. |
| 10 | * |
| 11 | * (C) Copyright 2005 Robert Love |
| 12 | */ |
| 13 | |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 14 | #include <linux/dnotify.h> |
| 15 | #include <linux/inotify.h> |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 16 | #include <linux/fsnotify_backend.h> |
Amy Griffis | 73241cc | 2005-11-03 16:00:25 +0000 | [diff] [blame] | 17 | #include <linux/audit.h> |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 18 | |
| 19 | /* |
Nick Piggin | c32ccd8 | 2006-03-25 03:07:09 -0800 | [diff] [blame] | 20 | * fsnotify_d_instantiate - instantiate a dentry for inode |
| 21 | * Called with dcache_lock held. |
| 22 | */ |
| 23 | static inline void fsnotify_d_instantiate(struct dentry *entry, |
| 24 | struct inode *inode) |
| 25 | { |
Eric Paris | c28f7e5 | 2009-05-21 17:01:29 -0400 | [diff] [blame^] | 26 | __fsnotify_d_instantiate(entry, inode); |
| 27 | |
Nick Piggin | c32ccd8 | 2006-03-25 03:07:09 -0800 | [diff] [blame] | 28 | inotify_d_instantiate(entry, inode); |
| 29 | } |
| 30 | |
Eric Paris | c28f7e5 | 2009-05-21 17:01:29 -0400 | [diff] [blame^] | 31 | /* Notify this dentry's parent about a child's events. */ |
| 32 | static inline void fsnotify_parent(struct dentry *dentry, __u32 mask) |
| 33 | { |
| 34 | __fsnotify_parent(dentry, mask); |
| 35 | |
| 36 | inotify_dentry_parent_queue_event(dentry, mask, 0, dentry->d_name.name); |
| 37 | } |
| 38 | |
Nick Piggin | c32ccd8 | 2006-03-25 03:07:09 -0800 | [diff] [blame] | 39 | /* |
| 40 | * fsnotify_d_move - entry has been moved |
| 41 | * Called with dcache_lock and entry->d_lock held. |
| 42 | */ |
| 43 | static inline void fsnotify_d_move(struct dentry *entry) |
| 44 | { |
Eric Paris | c28f7e5 | 2009-05-21 17:01:29 -0400 | [diff] [blame^] | 45 | /* |
| 46 | * On move we need to update entry->d_flags to indicate if the new parent |
| 47 | * cares about events from this entry. |
| 48 | */ |
| 49 | __fsnotify_update_dcache_flags(entry); |
| 50 | |
Nick Piggin | c32ccd8 | 2006-03-25 03:07:09 -0800 | [diff] [blame] | 51 | inotify_d_move(entry); |
| 52 | } |
| 53 | |
| 54 | /* |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 55 | * fsnotify_link_count - inode's link count changed |
| 56 | */ |
| 57 | static inline void fsnotify_link_count(struct inode *inode) |
| 58 | { |
| 59 | inotify_inode_queue_event(inode, IN_ATTRIB, 0, NULL, NULL); |
| 60 | |
| 61 | fsnotify(inode, FS_ATTRIB, inode, FSNOTIFY_EVENT_INODE); |
| 62 | } |
| 63 | |
| 64 | /* |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 65 | * fsnotify_move - file old_name at old_dir was moved to new_name at new_dir |
| 66 | */ |
| 67 | static inline void fsnotify_move(struct inode *old_dir, struct inode *new_dir, |
| 68 | const char *old_name, const char *new_name, |
Al Viro | 5a190ae | 2007-06-07 12:19:32 -0400 | [diff] [blame] | 69 | int isdir, struct inode *target, struct dentry *moved) |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 70 | { |
Al Viro | 5a190ae | 2007-06-07 12:19:32 -0400 | [diff] [blame] | 71 | struct inode *source = moved->d_inode; |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 72 | u32 cookie = inotify_get_cookie(); |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 73 | __u32 old_dir_mask = 0; |
| 74 | __u32 new_dir_mask = 0; |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 75 | |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 76 | if (old_dir == new_dir) { |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 77 | inode_dir_notify(old_dir, DN_RENAME); |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 78 | old_dir_mask = FS_DN_RENAME; |
| 79 | } else { |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 80 | inode_dir_notify(old_dir, DN_DELETE); |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 81 | old_dir_mask = FS_DELETE; |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 82 | inode_dir_notify(new_dir, DN_CREATE); |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 83 | new_dir_mask = FS_CREATE; |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 84 | } |
| 85 | |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 86 | if (isdir) { |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 87 | isdir = IN_ISDIR; |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 88 | old_dir_mask |= FS_IN_ISDIR; |
| 89 | new_dir_mask |= FS_IN_ISDIR; |
| 90 | } |
| 91 | |
| 92 | old_dir_mask |= FS_MOVED_FROM; |
| 93 | new_dir_mask |= FS_MOVED_TO; |
| 94 | |
Amy Griffis | 7c29772 | 2006-06-01 13:11:01 -0700 | [diff] [blame] | 95 | inotify_inode_queue_event(old_dir, IN_MOVED_FROM|isdir,cookie,old_name, |
| 96 | source); |
| 97 | inotify_inode_queue_event(new_dir, IN_MOVED_TO|isdir, cookie, new_name, |
| 98 | source); |
John McCutchan | 7544953 | 2005-08-01 11:00:45 -0400 | [diff] [blame] | 99 | |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 100 | fsnotify(old_dir, old_dir_mask, old_dir, FSNOTIFY_EVENT_INODE); |
| 101 | fsnotify(new_dir, new_dir_mask, new_dir, FSNOTIFY_EVENT_INODE); |
| 102 | |
John McCutchan | 7544953 | 2005-08-01 11:00:45 -0400 | [diff] [blame] | 103 | if (target) { |
Amy Griffis | 7c29772 | 2006-06-01 13:11:01 -0700 | [diff] [blame] | 104 | inotify_inode_queue_event(target, IN_DELETE_SELF, 0, NULL, NULL); |
John McCutchan | 7544953 | 2005-08-01 11:00:45 -0400 | [diff] [blame] | 105 | inotify_inode_is_dead(target); |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 106 | |
| 107 | /* this is really a link_count change not a removal */ |
| 108 | fsnotify_link_count(target); |
John McCutchan | 7544953 | 2005-08-01 11:00:45 -0400 | [diff] [blame] | 109 | } |
John McCutchan | 89204c4 | 2005-08-15 12:13:28 -0400 | [diff] [blame] | 110 | |
| 111 | if (source) { |
Amy Griffis | 7c29772 | 2006-06-01 13:11:01 -0700 | [diff] [blame] | 112 | inotify_inode_queue_event(source, IN_MOVE_SELF, 0, NULL, NULL); |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 113 | fsnotify(source, FS_MOVE_SELF, moved->d_inode, FSNOTIFY_EVENT_INODE); |
John McCutchan | 89204c4 | 2005-08-15 12:13:28 -0400 | [diff] [blame] | 114 | } |
Al Viro | 5a190ae | 2007-06-07 12:19:32 -0400 | [diff] [blame] | 115 | audit_inode_child(new_name, moved, new_dir); |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 116 | } |
| 117 | |
| 118 | /* |
Eric Paris | 3be25f4 | 2009-05-21 17:01:26 -0400 | [diff] [blame] | 119 | * fsnotify_inode_delete - and inode is being evicted from cache, clean up is needed |
| 120 | */ |
| 121 | static inline void fsnotify_inode_delete(struct inode *inode) |
| 122 | { |
| 123 | __fsnotify_inode_delete(inode); |
| 124 | } |
| 125 | |
| 126 | /* |
John McCutchan | 7a91bf7 | 2005-08-08 13:52:16 -0400 | [diff] [blame] | 127 | * fsnotify_nameremove - a filename was removed from a directory |
| 128 | */ |
| 129 | static inline void fsnotify_nameremove(struct dentry *dentry, int isdir) |
| 130 | { |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 131 | __u32 mask = FS_DELETE; |
| 132 | |
John McCutchan | 7a91bf7 | 2005-08-08 13:52:16 -0400 | [diff] [blame] | 133 | if (isdir) |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 134 | mask |= FS_IN_ISDIR; |
John McCutchan | 7a91bf7 | 2005-08-08 13:52:16 -0400 | [diff] [blame] | 135 | dnotify_parent(dentry, DN_DELETE); |
Eric Paris | c28f7e5 | 2009-05-21 17:01:29 -0400 | [diff] [blame^] | 136 | |
| 137 | fsnotify_parent(dentry, mask); |
John McCutchan | 7a91bf7 | 2005-08-08 13:52:16 -0400 | [diff] [blame] | 138 | } |
| 139 | |
| 140 | /* |
| 141 | * fsnotify_inoderemove - an inode is going away |
| 142 | */ |
| 143 | static inline void fsnotify_inoderemove(struct inode *inode) |
| 144 | { |
Amy Griffis | 7c29772 | 2006-06-01 13:11:01 -0700 | [diff] [blame] | 145 | inotify_inode_queue_event(inode, IN_DELETE_SELF, 0, NULL, NULL); |
John McCutchan | 7a91bf7 | 2005-08-08 13:52:16 -0400 | [diff] [blame] | 146 | inotify_inode_is_dead(inode); |
John McCutchan | 7a91bf7 | 2005-08-08 13:52:16 -0400 | [diff] [blame] | 147 | |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 148 | fsnotify(inode, FS_DELETE_SELF, inode, FSNOTIFY_EVENT_INODE); |
Eric Paris | 3be25f4 | 2009-05-21 17:01:26 -0400 | [diff] [blame] | 149 | __fsnotify_inode_delete(inode); |
Jan Kara | ece9591 | 2008-02-06 01:37:13 -0800 | [diff] [blame] | 150 | } |
| 151 | |
| 152 | /* |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 153 | * fsnotify_create - 'name' was linked in |
| 154 | */ |
Amy Griffis | f38aa94 | 2005-11-03 15:57:06 +0000 | [diff] [blame] | 155 | static inline void fsnotify_create(struct inode *inode, struct dentry *dentry) |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 156 | { |
| 157 | inode_dir_notify(inode, DN_CREATE); |
Amy Griffis | 7c29772 | 2006-06-01 13:11:01 -0700 | [diff] [blame] | 158 | inotify_inode_queue_event(inode, IN_CREATE, 0, dentry->d_name.name, |
| 159 | dentry->d_inode); |
Al Viro | 5a190ae | 2007-06-07 12:19:32 -0400 | [diff] [blame] | 160 | audit_inode_child(dentry->d_name.name, dentry, inode); |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 161 | |
| 162 | fsnotify(inode, FS_CREATE, dentry->d_inode, FSNOTIFY_EVENT_INODE); |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 163 | } |
| 164 | |
| 165 | /* |
Jan Kara | ece9591 | 2008-02-06 01:37:13 -0800 | [diff] [blame] | 166 | * fsnotify_link - new hardlink in 'inode' directory |
| 167 | * Note: We have to pass also the linked inode ptr as some filesystems leave |
| 168 | * new_dentry->d_inode NULL and instantiate inode pointer later |
| 169 | */ |
| 170 | static inline void fsnotify_link(struct inode *dir, struct inode *inode, struct dentry *new_dentry) |
| 171 | { |
| 172 | inode_dir_notify(dir, DN_CREATE); |
| 173 | inotify_inode_queue_event(dir, IN_CREATE, 0, new_dentry->d_name.name, |
| 174 | inode); |
| 175 | fsnotify_link_count(inode); |
| 176 | audit_inode_child(new_dentry->d_name.name, new_dentry, dir); |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 177 | |
| 178 | fsnotify(dir, FS_CREATE, inode, FSNOTIFY_EVENT_INODE); |
Jan Kara | ece9591 | 2008-02-06 01:37:13 -0800 | [diff] [blame] | 179 | } |
| 180 | |
| 181 | /* |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 182 | * fsnotify_mkdir - directory 'name' was created |
| 183 | */ |
Amy Griffis | f38aa94 | 2005-11-03 15:57:06 +0000 | [diff] [blame] | 184 | static inline void fsnotify_mkdir(struct inode *inode, struct dentry *dentry) |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 185 | { |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 186 | __u32 mask = (FS_CREATE | FS_IN_ISDIR); |
| 187 | struct inode *d_inode = dentry->d_inode; |
| 188 | |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 189 | inode_dir_notify(inode, DN_CREATE); |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 190 | inotify_inode_queue_event(inode, mask, 0, dentry->d_name.name, d_inode); |
Al Viro | 5a190ae | 2007-06-07 12:19:32 -0400 | [diff] [blame] | 191 | audit_inode_child(dentry->d_name.name, dentry, inode); |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 192 | |
| 193 | fsnotify(inode, mask, d_inode, FSNOTIFY_EVENT_INODE); |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 194 | } |
| 195 | |
| 196 | /* |
| 197 | * fsnotify_access - file was read |
| 198 | */ |
| 199 | static inline void fsnotify_access(struct dentry *dentry) |
| 200 | { |
| 201 | struct inode *inode = dentry->d_inode; |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 202 | __u32 mask = FS_ACCESS; |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 203 | |
| 204 | if (S_ISDIR(inode->i_mode)) |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 205 | mask |= FS_IN_ISDIR; |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 206 | |
| 207 | dnotify_parent(dentry, DN_ACCESS); |
Amy Griffis | 7c29772 | 2006-06-01 13:11:01 -0700 | [diff] [blame] | 208 | inotify_inode_queue_event(inode, mask, 0, NULL, NULL); |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 209 | |
Eric Paris | c28f7e5 | 2009-05-21 17:01:29 -0400 | [diff] [blame^] | 210 | fsnotify_parent(dentry, mask); |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 211 | fsnotify(inode, mask, inode, FSNOTIFY_EVENT_INODE); |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 212 | } |
| 213 | |
| 214 | /* |
| 215 | * fsnotify_modify - file was modified |
| 216 | */ |
| 217 | static inline void fsnotify_modify(struct dentry *dentry) |
| 218 | { |
| 219 | struct inode *inode = dentry->d_inode; |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 220 | __u32 mask = FS_MODIFY; |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 221 | |
| 222 | if (S_ISDIR(inode->i_mode)) |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 223 | mask |= FS_IN_ISDIR; |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 224 | |
| 225 | dnotify_parent(dentry, DN_MODIFY); |
Amy Griffis | 7c29772 | 2006-06-01 13:11:01 -0700 | [diff] [blame] | 226 | inotify_inode_queue_event(inode, mask, 0, NULL, NULL); |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 227 | |
Eric Paris | c28f7e5 | 2009-05-21 17:01:29 -0400 | [diff] [blame^] | 228 | fsnotify_parent(dentry, mask); |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 229 | fsnotify(inode, mask, inode, FSNOTIFY_EVENT_INODE); |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 230 | } |
| 231 | |
| 232 | /* |
| 233 | * fsnotify_open - file was opened |
| 234 | */ |
| 235 | static inline void fsnotify_open(struct dentry *dentry) |
| 236 | { |
| 237 | struct inode *inode = dentry->d_inode; |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 238 | __u32 mask = FS_OPEN; |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 239 | |
| 240 | if (S_ISDIR(inode->i_mode)) |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 241 | mask |= FS_IN_ISDIR; |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 242 | |
Amy Griffis | 7c29772 | 2006-06-01 13:11:01 -0700 | [diff] [blame] | 243 | inotify_inode_queue_event(inode, mask, 0, NULL, NULL); |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 244 | |
Eric Paris | c28f7e5 | 2009-05-21 17:01:29 -0400 | [diff] [blame^] | 245 | fsnotify_parent(dentry, mask); |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 246 | fsnotify(inode, mask, inode, FSNOTIFY_EVENT_INODE); |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 247 | } |
| 248 | |
| 249 | /* |
| 250 | * fsnotify_close - file was closed |
| 251 | */ |
| 252 | static inline void fsnotify_close(struct file *file) |
| 253 | { |
Josef "Jeff" Sipek | 0f7fc9e | 2006-12-08 02:36:35 -0800 | [diff] [blame] | 254 | struct dentry *dentry = file->f_path.dentry; |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 255 | struct inode *inode = dentry->d_inode; |
Al Viro | aeb5d72 | 2008-09-02 15:28:45 -0400 | [diff] [blame] | 256 | fmode_t mode = file->f_mode; |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 257 | __u32 mask = (mode & FMODE_WRITE) ? FS_CLOSE_WRITE : FS_CLOSE_NOWRITE; |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 258 | |
| 259 | if (S_ISDIR(inode->i_mode)) |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 260 | mask |= FS_IN_ISDIR; |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 261 | |
Amy Griffis | 7c29772 | 2006-06-01 13:11:01 -0700 | [diff] [blame] | 262 | inotify_inode_queue_event(inode, mask, 0, NULL, NULL); |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 263 | |
Eric Paris | c28f7e5 | 2009-05-21 17:01:29 -0400 | [diff] [blame^] | 264 | fsnotify_parent(dentry, mask); |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 265 | fsnotify(inode, mask, file, FSNOTIFY_EVENT_FILE); |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 266 | } |
| 267 | |
| 268 | /* |
| 269 | * fsnotify_xattr - extended attributes were changed |
| 270 | */ |
| 271 | static inline void fsnotify_xattr(struct dentry *dentry) |
| 272 | { |
| 273 | struct inode *inode = dentry->d_inode; |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 274 | __u32 mask = FS_ATTRIB; |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 275 | |
| 276 | if (S_ISDIR(inode->i_mode)) |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 277 | mask |= FS_IN_ISDIR; |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 278 | |
Amy Griffis | 7c29772 | 2006-06-01 13:11:01 -0700 | [diff] [blame] | 279 | inotify_inode_queue_event(inode, mask, 0, NULL, NULL); |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 280 | |
Eric Paris | c28f7e5 | 2009-05-21 17:01:29 -0400 | [diff] [blame^] | 281 | fsnotify_parent(dentry, mask); |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 282 | fsnotify(inode, mask, inode, FSNOTIFY_EVENT_INODE); |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 283 | } |
| 284 | |
| 285 | /* |
| 286 | * fsnotify_change - notify_change event. file was modified and/or metadata |
| 287 | * was changed. |
| 288 | */ |
| 289 | static inline void fsnotify_change(struct dentry *dentry, unsigned int ia_valid) |
| 290 | { |
| 291 | struct inode *inode = dentry->d_inode; |
| 292 | int dn_mask = 0; |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 293 | __u32 in_mask = 0; |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 294 | |
| 295 | if (ia_valid & ATTR_UID) { |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 296 | in_mask |= FS_ATTRIB; |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 297 | dn_mask |= DN_ATTRIB; |
| 298 | } |
| 299 | if (ia_valid & ATTR_GID) { |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 300 | in_mask |= FS_ATTRIB; |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 301 | dn_mask |= DN_ATTRIB; |
| 302 | } |
| 303 | if (ia_valid & ATTR_SIZE) { |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 304 | in_mask |= FS_MODIFY; |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 305 | dn_mask |= DN_MODIFY; |
| 306 | } |
| 307 | /* both times implies a utime(s) call */ |
| 308 | if ((ia_valid & (ATTR_ATIME | ATTR_MTIME)) == (ATTR_ATIME | ATTR_MTIME)) |
| 309 | { |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 310 | in_mask |= FS_ATTRIB; |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 311 | dn_mask |= DN_ATTRIB; |
| 312 | } else if (ia_valid & ATTR_ATIME) { |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 313 | in_mask |= FS_ACCESS; |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 314 | dn_mask |= DN_ACCESS; |
| 315 | } else if (ia_valid & ATTR_MTIME) { |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 316 | in_mask |= FS_MODIFY; |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 317 | dn_mask |= DN_MODIFY; |
| 318 | } |
| 319 | if (ia_valid & ATTR_MODE) { |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 320 | in_mask |= FS_ATTRIB; |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 321 | dn_mask |= DN_ATTRIB; |
| 322 | } |
| 323 | |
| 324 | if (dn_mask) |
| 325 | dnotify_parent(dentry, dn_mask); |
| 326 | if (in_mask) { |
| 327 | if (S_ISDIR(inode->i_mode)) |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 328 | in_mask |= FS_IN_ISDIR; |
Amy Griffis | 7c29772 | 2006-06-01 13:11:01 -0700 | [diff] [blame] | 329 | inotify_inode_queue_event(inode, in_mask, 0, NULL, NULL); |
Eric Paris | c28f7e5 | 2009-05-21 17:01:29 -0400 | [diff] [blame^] | 330 | |
| 331 | fsnotify_parent(dentry, in_mask); |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 332 | fsnotify(inode, in_mask, inode, FSNOTIFY_EVENT_INODE); |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 333 | } |
| 334 | } |
| 335 | |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 336 | #if defined(CONFIG_INOTIFY) || defined(CONFIG_FSNOTIFY) /* notify helpers */ |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 337 | |
| 338 | /* |
| 339 | * fsnotify_oldname_init - save off the old filename before we change it |
| 340 | */ |
| 341 | static inline const char *fsnotify_oldname_init(const char *name) |
| 342 | { |
| 343 | return kstrdup(name, GFP_KERNEL); |
| 344 | } |
| 345 | |
| 346 | /* |
| 347 | * fsnotify_oldname_free - free the name we got from fsnotify_oldname_init |
| 348 | */ |
| 349 | static inline void fsnotify_oldname_free(const char *old_name) |
| 350 | { |
| 351 | kfree(old_name); |
| 352 | } |
| 353 | |
Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 354 | #else /* CONFIG_INOTIFY || CONFIG_FSNOTIFY */ |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 355 | |
| 356 | static inline const char *fsnotify_oldname_init(const char *name) |
| 357 | { |
| 358 | return NULL; |
| 359 | } |
| 360 | |
| 361 | static inline void fsnotify_oldname_free(const char *old_name) |
| 362 | { |
| 363 | } |
| 364 | |
| 365 | #endif /* ! CONFIG_INOTIFY */ |
| 366 | |
Robert Love | 0eeca28 | 2005-07-12 17:06:03 -0400 | [diff] [blame] | 367 | #endif /* _LINUX_FS_NOTIFY_H */ |