android_kernel_xiaomi_sm8350/fs/gfs2/mount.c
Tim Schmielau cd354f1ae7 [PATCH] remove many unneeded #includes of sched.h
After Al Viro (finally) succeeded in removing the sched.h #include in module.h
recently, it makes sense again to remove other superfluous sched.h includes.
There are quite a lot of files which include it but don't actually need
anything defined in there.  Presumably these includes were once needed for
macros that used to live in sched.h, but moved to other header files in the
course of cleaning it up.

To ease the pain, this time I did not fiddle with any header files and only
removed #includes from .c-files, which tend to cause less trouble.

Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,
arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,
allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all
configs in arch/arm/configs on arm.  I also checked that no new warnings were
introduced by the patch (actually, some warnings are removed that were emitted
by unnecessarily included header files).

Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-14 08:09:54 -08:00

214 lines
4.7 KiB
C

/*
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU General Public License version 2.
*/
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/completion.h>
#include <linux/buffer_head.h>
#include <linux/gfs2_ondisk.h>
#include <linux/lm_interface.h>
#include "gfs2.h"
#include "incore.h"
#include "mount.h"
#include "sys.h"
#include "util.h"
/**
* gfs2_mount_args - Parse mount options
* @sdp:
* @data:
*
* Return: errno
*/
int gfs2_mount_args(struct gfs2_sbd *sdp, char *data_arg, int remount)
{
struct gfs2_args *args = &sdp->sd_args;
char *data = data_arg;
char *options, *o, *v;
int error = 0;
if (!remount) {
/* If someone preloaded options, use those instead */
spin_lock(&gfs2_sys_margs_lock);
if (gfs2_sys_margs) {
data = gfs2_sys_margs;
gfs2_sys_margs = NULL;
}
spin_unlock(&gfs2_sys_margs_lock);
/* Set some defaults */
args->ar_num_glockd = GFS2_GLOCKD_DEFAULT;
args->ar_quota = GFS2_QUOTA_DEFAULT;
args->ar_data = GFS2_DATA_DEFAULT;
}
/* Split the options into tokens with the "," character and
process them */
for (options = data; (o = strsep(&options, ",")); ) {
if (!*o)
continue;
v = strchr(o, '=');
if (v)
*v++ = 0;
if (!strcmp(o, "lockproto")) {
if (!v)
goto need_value;
if (remount && strcmp(v, args->ar_lockproto))
goto cant_remount;
strncpy(args->ar_lockproto, v, GFS2_LOCKNAME_LEN);
args->ar_lockproto[GFS2_LOCKNAME_LEN - 1] = 0;
}
else if (!strcmp(o, "locktable")) {
if (!v)
goto need_value;
if (remount && strcmp(v, args->ar_locktable))
goto cant_remount;
strncpy(args->ar_locktable, v, GFS2_LOCKNAME_LEN);
args->ar_locktable[GFS2_LOCKNAME_LEN - 1] = 0;
}
else if (!strcmp(o, "hostdata")) {
if (!v)
goto need_value;
if (remount && strcmp(v, args->ar_hostdata))
goto cant_remount;
strncpy(args->ar_hostdata, v, GFS2_LOCKNAME_LEN);
args->ar_hostdata[GFS2_LOCKNAME_LEN - 1] = 0;
}
else if (!strcmp(o, "spectator")) {
if (remount && !args->ar_spectator)
goto cant_remount;
args->ar_spectator = 1;
sdp->sd_vfs->s_flags |= MS_RDONLY;
}
else if (!strcmp(o, "ignore_local_fs")) {
if (remount && !args->ar_ignore_local_fs)
goto cant_remount;
args->ar_ignore_local_fs = 1;
}
else if (!strcmp(o, "localflocks")) {
if (remount && !args->ar_localflocks)
goto cant_remount;
args->ar_localflocks = 1;
}
else if (!strcmp(o, "localcaching")) {
if (remount && !args->ar_localcaching)
goto cant_remount;
args->ar_localcaching = 1;
}
else if (!strcmp(o, "debug"))
args->ar_debug = 1;
else if (!strcmp(o, "nodebug"))
args->ar_debug = 0;
else if (!strcmp(o, "upgrade")) {
if (remount && !args->ar_upgrade)
goto cant_remount;
args->ar_upgrade = 1;
}
else if (!strcmp(o, "num_glockd")) {
unsigned int x;
if (!v)
goto need_value;
sscanf(v, "%u", &x);
if (remount && x != args->ar_num_glockd)
goto cant_remount;
if (!x || x > GFS2_GLOCKD_MAX) {
fs_info(sdp, "0 < num_glockd <= %u (not %u)\n",
GFS2_GLOCKD_MAX, x);
error = -EINVAL;
break;
}
args->ar_num_glockd = x;
}
else if (!strcmp(o, "acl")) {
args->ar_posix_acl = 1;
sdp->sd_vfs->s_flags |= MS_POSIXACL;
}
else if (!strcmp(o, "noacl")) {
args->ar_posix_acl = 0;
sdp->sd_vfs->s_flags &= ~MS_POSIXACL;
}
else if (!strcmp(o, "quota")) {
if (!v)
goto need_value;
if (!strcmp(v, "off"))
args->ar_quota = GFS2_QUOTA_OFF;
else if (!strcmp(v, "account"))
args->ar_quota = GFS2_QUOTA_ACCOUNT;
else if (!strcmp(v, "on"))
args->ar_quota = GFS2_QUOTA_ON;
else {
fs_info(sdp, "invalid value for quota\n");
error = -EINVAL;
break;
}
}
else if (!strcmp(o, "suiddir"))
args->ar_suiddir = 1;
else if (!strcmp(o, "nosuiddir"))
args->ar_suiddir = 0;
else if (!strcmp(o, "data")) {
if (!v)
goto need_value;
if (!strcmp(v, "writeback"))
args->ar_data = GFS2_DATA_WRITEBACK;
else if (!strcmp(v, "ordered"))
args->ar_data = GFS2_DATA_ORDERED;
else {
fs_info(sdp, "invalid value for data\n");
error = -EINVAL;
break;
}
}
else {
fs_info(sdp, "unknown option: %s\n", o);
error = -EINVAL;
break;
}
}
if (error)
fs_info(sdp, "invalid mount option(s)\n");
if (data != data_arg)
kfree(data);
return error;
need_value:
fs_info(sdp, "need value for option %s\n", o);
return -EINVAL;
cant_remount:
fs_info(sdp, "can't remount with option %s\n", o);
return -EINVAL;
}