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| author | Jia Zhu <zhujia.zj@bytedance.com> | 2023-11-20 07:14:21 +0300 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2023-11-25 18:03:57 +0300 |
| commit | b817e22b2e91257ace32a6768c3c003faeaa1c5c (patch) | |
| tree | f75d2a726a3c45b95b8ceb02a74328cfabee525b /fs/cachefiles/internal.h | |
| parent | 0a7e54c1959c0feb2de23397ec09c7692364313e (diff) | |
| download | linux-b817e22b2e91257ace32a6768c3c003faeaa1c5c.tar.xz | |
cachefiles: narrow the scope of triggering EPOLLIN events in ondemand mode
Don't trigger EPOLLIN when there are only reopening read requests in
xarray.
Suggested-by: Xin Yin <yinxin.x@bytedance.com>
Signed-off-by: Jia Zhu <zhujia.zj@bytedance.com>
Link: https://lore.kernel.org/r/20231120041422.75170-5-zhujia.zj@bytedance.com
Reviewed-by: Jingbo Xu <jefflexu@linux.alibaba.com>
Reviewed-by: David Howells <dhowells@redhat.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'fs/cachefiles/internal.h')
| -rw-r--r-- | fs/cachefiles/internal.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/cachefiles/internal.h b/fs/cachefiles/internal.h index b9a90f1a0c01..26e5f8f123ef 100644 --- a/fs/cachefiles/internal.h +++ b/fs/cachefiles/internal.h @@ -329,6 +329,13 @@ cachefiles_ondemand_set_object_##_state(struct cachefiles_object *object) \ CACHEFILES_OBJECT_STATE_FUNCS(open, OPEN); CACHEFILES_OBJECT_STATE_FUNCS(close, CLOSE); CACHEFILES_OBJECT_STATE_FUNCS(reopening, REOPENING); + +static inline bool cachefiles_ondemand_is_reopening_read(struct cachefiles_req *req) +{ + return cachefiles_ondemand_object_is_reopening(req->object) && + req->msg.opcode == CACHEFILES_OP_READ; +} + #else static inline ssize_t cachefiles_ondemand_daemon_read(struct cachefiles_cache *cache, char __user *_buffer, size_t buflen) @@ -359,6 +366,11 @@ static inline int cachefiles_ondemand_init_obj_info(struct cachefiles_object *ob static inline void cachefiles_ondemand_deinit_obj_info(struct cachefiles_object *obj) { } + +static inline bool cachefiles_ondemand_is_reopening_read(struct cachefiles_req *req) +{ + return false; +} #endif /* |