From aa93bdc5500cc93ba31afeda1a61610d117947ad Mon Sep 17 00:00:00 2001 From: Amir Goldstein Date: Thu, 19 Mar 2020 17:10:12 +0200 Subject: fsnotify: use helpers to access data by data_type Create helpers to access path and inode from different data types. Link: https://lore.kernel.org/r/20200319151022.31456-5-amir73il@gmail.com Signed-off-by: Amir Goldstein Signed-off-by: Jan Kara --- include/linux/fsnotify_backend.h | 34 ++++++++++++++++++++++++++++++---- 1 file changed, 30 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h index db3cabb4600e..5cc838db422a 100644 --- a/include/linux/fsnotify_backend.h +++ b/include/linux/fsnotify_backend.h @@ -212,10 +212,36 @@ struct fsnotify_group { }; }; -/* when calling fsnotify tell it if the data is a path or inode */ -#define FSNOTIFY_EVENT_NONE 0 -#define FSNOTIFY_EVENT_PATH 1 -#define FSNOTIFY_EVENT_INODE 2 +/* When calling fsnotify tell it if the data is a path or inode */ +enum fsnotify_data_type { + FSNOTIFY_EVENT_NONE, + FSNOTIFY_EVENT_PATH, + FSNOTIFY_EVENT_INODE, +}; + +static inline const struct inode *fsnotify_data_inode(const void *data, + int data_type) +{ + switch (data_type) { + case FSNOTIFY_EVENT_INODE: + return data; + case FSNOTIFY_EVENT_PATH: + return d_inode(((const struct path *)data)->dentry); + default: + return NULL; + } +} + +static inline const struct path *fsnotify_data_path(const void *data, + int data_type) +{ + switch (data_type) { + case FSNOTIFY_EVENT_PATH: + return data; + default: + return NULL; + } +} enum fsnotify_obj_type { FSNOTIFY_OBJ_TYPE_INODE, -- cgit v1.2.3