From: Ian Kent <raven@themaw.net>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-fsdevel <linux-fsdevel@vger.kernel.org>,
Tomohiro Kusumi <kusumi.tomohiro@gmail.com>,
autofs mailing list <autofs@vger.kernel.org>,
Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: [PATCH 2/3] autofs: refactor ioctl fn vector in iookup_dev_ioctl()
Date: Wed, 31 Aug 2016 11:34:15 +0800 [thread overview]
Message-ID: <20160831033414.9910.66697.stgit@pluto.themaw.net> (raw)
In-Reply-To: <20160831033409.9910.77067.stgit@pluto.themaw.net>
From: Tomohiro Kusumi <kusumi.tomohiro@gmail.com>
cmd part of this struct is the same as an index of itself within
_ioctls[]. In fact this cmd is unused, so we can drop this part.
Signed-off-by: Tomohiro Kusumi <kusumi.tomohiro@gmail.com>
Signed-off-by: Ian Kent <raven@themaw.net>
---
fs/autofs4/dev-ioctl.c | 49 ++++++++++++++++--------------------------------
1 file changed, 16 insertions(+), 33 deletions(-)
diff --git a/fs/autofs4/dev-ioctl.c b/fs/autofs4/dev-ioctl.c
index e89d6bb..fc09eb7 100644
--- a/fs/autofs4/dev-ioctl.c
+++ b/fs/autofs4/dev-ioctl.c
@@ -597,42 +597,25 @@ out:
static ioctl_fn lookup_dev_ioctl(unsigned int cmd)
{
- static struct {
- int cmd;
- ioctl_fn fn;
- } _ioctls[] = {
- {cmd_idx(AUTOFS_DEV_IOCTL_VERSION_CMD),
- autofs_dev_ioctl_version},
- {cmd_idx(AUTOFS_DEV_IOCTL_PROTOVER_CMD),
- autofs_dev_ioctl_protover},
- {cmd_idx(AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD),
- autofs_dev_ioctl_protosubver},
- {cmd_idx(AUTOFS_DEV_IOCTL_OPENMOUNT_CMD),
- autofs_dev_ioctl_openmount},
- {cmd_idx(AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD),
- autofs_dev_ioctl_closemount},
- {cmd_idx(AUTOFS_DEV_IOCTL_READY_CMD),
- autofs_dev_ioctl_ready},
- {cmd_idx(AUTOFS_DEV_IOCTL_FAIL_CMD),
- autofs_dev_ioctl_fail},
- {cmd_idx(AUTOFS_DEV_IOCTL_SETPIPEFD_CMD),
- autofs_dev_ioctl_setpipefd},
- {cmd_idx(AUTOFS_DEV_IOCTL_CATATONIC_CMD),
- autofs_dev_ioctl_catatonic},
- {cmd_idx(AUTOFS_DEV_IOCTL_TIMEOUT_CMD),
- autofs_dev_ioctl_timeout},
- {cmd_idx(AUTOFS_DEV_IOCTL_REQUESTER_CMD),
- autofs_dev_ioctl_requester},
- {cmd_idx(AUTOFS_DEV_IOCTL_EXPIRE_CMD),
- autofs_dev_ioctl_expire},
- {cmd_idx(AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD),
- autofs_dev_ioctl_askumount},
- {cmd_idx(AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD),
- autofs_dev_ioctl_ismountpoint}
+ static ioctl_fn _ioctls[] = {
+ autofs_dev_ioctl_version,
+ autofs_dev_ioctl_protover,
+ autofs_dev_ioctl_protosubver,
+ autofs_dev_ioctl_openmount,
+ autofs_dev_ioctl_closemount,
+ autofs_dev_ioctl_ready,
+ autofs_dev_ioctl_fail,
+ autofs_dev_ioctl_setpipefd,
+ autofs_dev_ioctl_catatonic,
+ autofs_dev_ioctl_timeout,
+ autofs_dev_ioctl_requester,
+ autofs_dev_ioctl_expire,
+ autofs_dev_ioctl_askumount,
+ autofs_dev_ioctl_ismountpoint,
};
unsigned int idx = cmd_idx(cmd);
- return (idx >= ARRAY_SIZE(_ioctls)) ? NULL : _ioctls[idx].fn;
+ return (idx >= ARRAY_SIZE(_ioctls)) ? NULL : _ioctls[idx];
}
/* ioctl dispatcher */
next prev parent reply other threads:[~2016-08-31 3:34 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-31 3:34 [PATCH 1/3] autofs: remove possibly misleading /* #define DEBUG */ Ian Kent
2016-08-31 3:34 ` Ian Kent [this message]
2016-08-31 3:34 ` [PATCH 3/3] autofs: fix "fix dev ioctl number range check" Ian Kent
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