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| author | Amir Goldstein <amir73il@gmail.com> | 2018-04-20 16:10:50 -0700 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2018-05-18 14:58:22 +0200 |
| commit | 5b0457ad021f3f7e3d9f4b84e7c3080748f383f8 (patch) | |
| tree | 71075e48e360e92dc139df2eb4872e911cacb6c0 /include | |
| parent | d6f7b98bc8147abd290ead82922f8d83c525fb42 (diff) | |
| download | linux-5b0457ad021f3f7e3d9f4b84e7c3080748f383f8.tar.gz linux-5b0457ad021f3f7e3d9f4b84e7c3080748f383f8.tar.bz2 linux-5b0457ad021f3f7e3d9f4b84e7c3080748f383f8.zip | |
fsnotify: remove redundant arguments to handle_event()
inode_mark and vfsmount_mark arguments are passed to handle_event()
operation as function arguments as well as on iter_info struct.
The difference is that iter_info struct may contain marks that should
not be handled and are represented as NULL arguments to inode_mark or
vfsmount_mark.
Instead of passing the inode_mark and vfsmount_mark arguments, add
a report_mask member to iter_info struct to indicate which marks should
be handled, versus marks that should only be kept alive during user
wait.
This change is going to be used for passing more mark types
with handle_event() (i.e. super block marks).
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/fsnotify_backend.h | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h index 435c94a31c8c..9da5edf4ac0f 100644 --- a/include/linux/fsnotify_backend.h +++ b/include/linux/fsnotify_backend.h @@ -98,8 +98,6 @@ struct fsnotify_iter_info; struct fsnotify_ops { int (*handle_event)(struct fsnotify_group *group, struct inode *inode, - struct fsnotify_mark *inode_mark, - struct fsnotify_mark *vfsmount_mark, u32 mask, const void *data, int data_type, const unsigned char *file_name, u32 cookie, struct fsnotify_iter_info *iter_info); @@ -212,6 +210,24 @@ enum fsnotify_obj_type { #define FSNOTIFY_OBJ_TYPE_VFSMOUNT_FL (1U << FSNOTIFY_OBJ_TYPE_VFSMOUNT) #define FSNOTIFY_OBJ_ALL_TYPES_MASK ((1U << FSNOTIFY_OBJ_TYPE_COUNT) - 1) +struct fsnotify_iter_info { + struct fsnotify_mark *inode_mark; + struct fsnotify_mark *vfsmount_mark; + unsigned int report_mask; + int srcu_idx; +}; + +#define FSNOTIFY_ITER_FUNCS(name, NAME) \ +static inline struct fsnotify_mark *fsnotify_iter_##name##_mark( \ + struct fsnotify_iter_info *iter_info) \ +{ \ + return (iter_info->report_mask & FSNOTIFY_OBJ_TYPE_##NAME##_FL) ? \ + iter_info->name##_mark : NULL; \ +} + +FSNOTIFY_ITER_FUNCS(inode, INODE) +FSNOTIFY_ITER_FUNCS(vfsmount, VFSMOUNT) + /* * Inode / vfsmount point to this structure which tracks all marks attached to * the inode / vfsmount. The reference to inode / vfsmount is held by this |