R0dn3yS/android_kernel_xiaomi_sm7250
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

fuse: give wakeup hints to the scheduler

Browse Source 
Use synchronous wakeup interface to wakeup the userspace daemon.
Scheduler can make use of this hint to find a better CPU for the
waker task.

Change-Id: I7d077235f9b8fe771869dd7e6fccee7d356d858b
Suggested-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Signed-off-by: Pradeep P V K <pragalla@codeaurora.org>
This commit is contained in:
Pradeep P V K 2021-09-28 15:22:04 +05:30
parent 85866d270d
commit 4e2e0b5cf0
1 changed files with 9 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
fs/fuse/dev.c
View File

@ -327,12 +327,16 @@ static u64 fuse_get_unique(struct fuse_iqueue *fiq)
return ++fiq->reqctr;
}
static void queue_request(struct fuse_iqueue *fiq, struct fuse_req *req)
static void queue_request(struct fuse_iqueue *fiq, struct fuse_req *req,
bool sync)
{
req->in.h.len = sizeof(struct fuse_in_header) +
len_args(req->in.numargs, (struct fuse_arg *) req->in.args);
list_add_tail(&req->list, &fiq->pending);
wake_up(&fiq->waitq);
if (sync)
wake_up_sync(&fiq->waitq);
else
wake_up(&fiq->waitq);
kill_fasync(&fiq->fasync, SIGIO, POLL_IN);
}
@ -368,7 +372,7 @@ static void flush_bg_queue(struct fuse_conn *fc)
fc->active_background++;
spin_lock(&fiq->lock);
req->in.h.unique = fuse_get_unique(fiq);
queue_request(fiq, req);
queue_request(fiq, req, 0);
spin_unlock(&fiq->lock);
}
}
@ -497,7 +501,7 @@ static void __fuse_request_send(struct fuse_conn *fc, struct fuse_req *req)
req->out.h.error = -ENOTCONN;
} else {
req->in.h.unique = fuse_get_unique(fiq);
queue_request(fiq, req);
queue_request(fiq, req, 1);
/* acquire extra reference, since request is still needed
after request_end() */
__fuse_get_request(req);
@ -637,7 +641,7 @@ static int fuse_request_send_notify_reply(struct fuse_conn *fc,
req->in.h.unique = unique;
spin_lock(&fiq->lock);
if (fiq->connected) {
queue_request(fiq, req);
queue_request(fiq, req, 0);
err = 0;
}
spin_unlock(&fiq->lock);