From: Christoph Hellwig <hch@lst.de>
To: Al Viro <viro@zeniv.linux.org.uk>,
Linus Torvalds <torvalds@linux-foundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
"Rafael J. Wysocki" <rafael@kernel.org>,
linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org,
linux-fsdevel@vger.kernel.org, linux-api@vger.kernel.org
Subject: [PATCH 04/21] devtmpfs: refactor devtmpfsd()
Date: Sun, 26 Jul 2020 09:13:39 +0200 [thread overview]
Message-ID: <20200726071356.287160-5-hch@lst.de> (raw)
In-Reply-To: <20200726071356.287160-1-hch@lst.de>
Split the main worker loop into a separate function. This allows
devtmpfsd itself and devtmpfsd_setup to be marked __init, which will
allows us to call __init routines for the setup work.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
drivers/base/devtmpfs.c | 47 +++++++++++++++++++++++------------------
1 file changed, 26 insertions(+), 21 deletions(-)
diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
index c9017e0584c003..a103ee7e229930 100644
--- a/drivers/base/devtmpfs.c
+++ b/drivers/base/devtmpfs.c
@@ -378,7 +378,30 @@ static int handle(const char *name, umode_t mode, kuid_t uid, kgid_t gid,
return handle_remove(name, dev);
}
-static int devtmpfs_setup(void *p)
+static void __noreturn devtmpfs_work_loop(void)
+{
+ while (1) {
+ spin_lock(&req_lock);
+ while (requests) {
+ struct req *req = requests;
+ requests = NULL;
+ spin_unlock(&req_lock);
+ while (req) {
+ struct req *next = req->next;
+ req->err = handle(req->name, req->mode,
+ req->uid, req->gid, req->dev);
+ complete(&req->done);
+ req = next;
+ }
+ spin_lock(&req_lock);
+ }
+ __set_current_state(TASK_INTERRUPTIBLE);
+ spin_unlock(&req_lock);
+ schedule();
+ }
+}
+
+static int __init devtmpfs_setup(void *p)
{
int err;
@@ -396,31 +419,13 @@ static int devtmpfs_setup(void *p)
return err;
}
-static int devtmpfsd(void *p)
+static int __init devtmpfsd(void *p)
{
int err = devtmpfs_setup(p);
if (err)
return err;
- while (1) {
- spin_lock(&req_lock);
- while (requests) {
- struct req *req = requests;
- requests = NULL;
- spin_unlock(&req_lock);
- while (req) {
- struct req *next = req->next;
- req->err = handle(req->name, req->mode,
- req->uid, req->gid, req->dev);
- complete(&req->done);
- req = next;
- }
- spin_lock(&req_lock);
- }
- __set_current_state(TASK_INTERRUPTIBLE);
- spin_unlock(&req_lock);
- schedule();
- }
+ devtmpfs_work_loop();
return 0;
}
--
2.27.0
next prev parent reply other threads:[~2020-07-26 7:14 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-26 7:13 add file system helpers that take kernel pointers for the init code v3 Christoph Hellwig
2020-07-26 7:13 ` [PATCH 01/21] fs: refactor do_mount Christoph Hellwig
2020-07-26 7:13 ` [PATCH 02/21] fs: refactor ksys_umount Christoph Hellwig
2020-07-26 7:13 ` [PATCH 03/21] fs: push the getname from do_rmdir into the callers Christoph Hellwig
2020-07-26 7:13 ` Christoph Hellwig [this message]
2020-07-26 7:43 ` [PATCH 04/21] devtmpfs: refactor devtmpfsd() Greg Kroah-Hartman
2020-07-26 8:21 ` Christoph Hellwig
2020-07-26 7:13 ` [PATCH 05/21] init: initialize ramdisk_execute_command at compile time Christoph Hellwig
2020-07-26 7:13 ` [PATCH 06/21] init: mark create_dev as __init Christoph Hellwig
2020-07-26 7:13 ` [PATCH 07/21] init: add an init_mount helper Christoph Hellwig
2020-07-26 7:13 ` [PATCH 08/21] init: add an init_umount helper Christoph Hellwig
2020-07-26 7:13 ` [PATCH 09/21] init: add an init_unlink helper Christoph Hellwig
2020-07-26 7:13 ` [PATCH 10/21] init: add an init_rmdir helper Christoph Hellwig
2020-07-26 7:13 ` [PATCH 11/21] init: add an init_chdir helper Christoph Hellwig
2020-07-26 7:13 ` [PATCH 12/21] init: add an init_chroot helper Christoph Hellwig
2020-07-26 7:13 ` [PATCH 13/21] init: add an init_chown helper Christoph Hellwig
2020-07-26 7:13 ` [PATCH 14/21] init: add an init_chmod helper Christoph Hellwig
2020-07-26 7:13 ` [PATCH 15/21] init: add an init_eaccess helper Christoph Hellwig
2020-07-26 7:13 ` [PATCH 16/21] init: add an init_link helper Christoph Hellwig
2020-07-26 7:13 ` [PATCH 17/21] init: add an init_symlink helper Christoph Hellwig
2020-07-26 7:13 ` [PATCH 18/21] init: add an init_mkdir helper Christoph Hellwig
2020-07-26 7:13 ` [PATCH 19/21] init: add an init_mknod helper Christoph Hellwig
2020-07-26 7:13 ` [PATCH 20/21] init: add an init_stat helper Christoph Hellwig
2020-07-26 7:13 ` [PATCH 21/21] init: add an init_utimes helper Christoph Hellwig
2020-07-26 15:49 ` add file system helpers that take kernel pointers for the init code v3 Linus Torvalds
2020-07-26 15:52 ` Christoph Hellwig
2020-07-26 16:21 ` Al Viro
2020-07-26 16:24 ` Christoph Hellwig
2020-07-26 16:26 ` Christoph Hellwig
2020-07-26 16:33 ` Al Viro
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