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kernel: minor optimization on throne tracker

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* Picked from https://github.com/tiann/KernelSU/pull/2633
* Add missed filp_close and don't make data_app_magic static + __read_mostly

Signed-off-by: backslashxx <118538522+backslashxx@users.noreply.github.com>
Signed-off-by: rsuntk <rsuntk@yukiprjkt.my.id>
This commit is contained in:
backslashxx
2025-06-12 15:36:08 +07:00
committed by ShirkNeko
parent 722b5ab944
commit d582e619f0
1 changed files with 5 additions and 4 deletions
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9
kernel/throne_tracker.c
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@@ -201,14 +201,13 @@ FILLDIR_RETURN_TYPE my_actor(struct dir_context *ctx, const char *name,
return FILLDIR_ACTOR_CONTINUE; return FILLDIR_ACTOR_CONTINUE;
} }
static unsigned long data_app_magic __read_mostly = 0; // its not like /data/app magic changes duh
void search_manager(const char *path, int depth, struct list_head *uid_data) void search_manager(const char *path, int depth, struct list_head *uid_data)
{ {
int i, stop = 0; int i, stop = 0;
struct list_head data_path_list; struct list_head data_path_list;
INIT_LIST_HEAD(&data_path_list); INIT_LIST_HEAD(&data_path_list);
INIT_LIST_HEAD(&apk_path_hash_list); INIT_LIST_HEAD(&apk_path_hash_list);
unsigned long data_app_magic = 0;
// Initialize APK cache list // Initialize APK cache list
struct apk_path_hash *pos, *n; struct apk_path_hash *pos, *n;
@@ -242,12 +241,14 @@ void search_manager(const char *path, int depth, struct list_head *uid_data)
} }
// grab magic on first folder, which is /data/app // grab magic on first folder, which is /data/app
if (unlikely(!data_app_magic)) { if (!data_app_magic) {
if (file->f_inode->i_sb->s_magic) { if (file->f_inode->i_sb->s_magic) {
data_app_magic = file->f_inode->i_sb->s_magic; data_app_magic = file->f_inode->i_sb->s_magic;
pr_info("%s: dir: %s got magic! 0x%lx\n", __func__, pos->dirpath, data_app_magic); pr_info("%s: dir: %s got magic! 0x%lx\n", __func__, pos->dirpath, data_app_magic);
} else } else {
filp_close(file, NULL);
goto skip_iterate; goto skip_iterate;
}
} }
if (file->f_inode->i_sb->s_magic != data_app_magic) { if (file->f_inode->i_sb->s_magic != data_app_magic) {