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  • Committer: Bazaar Package Importer
  • Author(s): Bart Samwel
  • Date: 2008-07-15 12:47:01 UTC
  • mfrom: (1.1.2 upstream)
  • Revision ID: james.westby@ubuntu.com-20080715124701-kaj9itpwjfpjrr0m
Tags: 1.45-1
http://bugs.debian.org/488950
http://bugs.debian.org/490167
http://bugs.debian.org/488261
http://bugs.debian.org/490587
* New upstream version 1.45.
* New upstream version 1.44:
  * Strip non-numeric suffixes from kernel minor version number.
    Closes: #488950.
  * Remove spurious error message on machines that don't have 
    /sys/class/power_supply. Closes: #490167.
  * Fix incorrect path to laptop-mode.conf in the laptop-mode.conf(8)
    manual page. Closes: #488261.
  * Add sched-mc-power-savings module. Closes: #490587.

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Lines of Context:
usr/share/laptop-mode-tools/modules/laptop-mode
 
1
#! /bin/sh
 
2
#
 
3
# Laptop mode tools module: core laptop mode functionality
 
4
#
 
5
 
 
6
 
 
7
 
 
8
 
 
9
# Remove an option (the first parameter) of the form option=<number> from
 
10
# a mount options string (the rest of the parameters).
 
11
remove_numeric_mount_option () {
 
12
        OPT="$1"
 
13
        shift
 
14
        echo ",$*," | sed               \
 
15
         -e 's|,'"$OPT"'=[0-9]*,|,|g'   \
 
16
         -e 's/,,*/,/g'                 \
 
17
         -e 's/^,//'                    \
 
18
         -e 's/,$//'
 
19
}
 
20
 
 
21
# Remove an option (the first parameter) without any arguments from
 
22
# a mount option string (the rest of the parameters).
 
23
remove_fixed_mount_option () {
 
24
        OPT="$1"
 
25
        shift
 
26
        echo ",$*," | sed               \
 
27
         -e 's|,'"$OPT"',|,|g'          \
 
28
         -e 's/,,*/,/g'                 \
 
29
         -e 's/^,//'                    \
 
30
         -e 's/,$//'
 
31
}
 
32
 
 
33
# Find out the state of an atime option ("atime"/"noatime"/"relatime"/"norelatime")
 
34
# in a set of mount options, and use this state to replace the value of the
 
35
# option in another mount options string.
 
36
#
 
37
# Example:
 
38
# replace_atime_mount_option defaults,user=1000,atime defaults,noatime
 
39
#
 
40
# This yields "defaults,atime".
 
41
replace_atime_mount_option () {
 
42
        REPLACEMENT_OPTS="$1"
 
43
        OPTS="$2"
 
44
        PARSEDOPTS="$(remove_fixed_mount_option atime $OPTS)"
 
45
        PARSEDOPTS="$(remove_fixed_mount_option noatime $PARSEDOPTS)"
 
46
        PARSEDOPTS="$(remove_fixed_mount_option relatime $PARSEDOPTS)"  
 
47
        PARSEDOPTS="$(remove_fixed_mount_option norelatime $PARSEDOPTS)"        
 
48
 
 
49
        case ",$REPLACEMENT_OPTS," in
 
50
        *",relatime,"*)
 
51
                echo "$PARSEDOPTS,relatime"
 
52
                ;;
 
53
        *",noatime,"*)
 
54
                echo "$PARSEDOPTS,noatime"
 
55
                ;;
 
56
        *)
 
57
                # Kind of strange: to go from relatime to atime, we have to
 
58
                # explicitly specify norelatime.
 
59
                echo "$PARSEDOPTS,atime,norelatime"
 
60
                ;;
 
61
        esac
 
62
}
 
63
 
 
64
# Find out the state of a numbered option (e.g. "commit=NNN") in
 
65
# a set of options, and use this state to replace the
 
66
# value of the option in another mount options string. 
 
67
#
 
68
# Example:
 
69
# replace_numeric_mount_option commit defaults,user=1000,commit=3 defaults,commit=7
 
70
#
 
71
# This example yields "defaults,commit=3".
 
72
replace_numeric_mount_option () {
 
73
        OPT="$1"
 
74
        DEF_OPT="$2"
 
75
        REPLACEMENT_OPTS="$3"
 
76
        OPTS="$4"       
 
77
        PARSEDOPTS="$(remove_numeric_mount_option $OPT $OPTS)"
 
78
        
 
79
        if echo ",$REPLACEMENT_OPTS," | grep ",$OPT=[0123456789]+," > /dev/null ; then
 
80
                echo -n "$PARSEDOPTS,$OPT="
 
81
                echo ",$REPLACEMENT_OPTS," | sed \
 
82
                 -e 's/.*,'"$OPT"'=//'  \
 
83
                 -e 's/,.*//'
 
84
        else
 
85
                # Option not present in REPLACEMENT_OPTS: use the default.
 
86
                echo "$PARSEDOPTS,$DEF_OPT"
 
87
        fi
 
88
}
 
89
 
 
90
deduce_fstype () {
 
91
        MP="$1"
 
92
        # My root filesystem unfortunately has type "unknown" in
 
93
        # /etc/mtab. If we encounter "unknown", we try to get the
 
94
        # type from fstab. This still might be wrong, in which
 
95
        # case the code further down will issue a big warning.
 
96
        sed 's/[[:space:]]*#.*$//' /etc/fstab |
 
97
        while read FSTAB_DEV FSTAB_MP FSTAB_FST FSTAB_OPTS FSTAB_DUMP FSTAB_DUMP ; do
 
98
                if [ "$FSTAB_MP" = "$MP" ]; then
 
99
                        echo "$FSTAB_FST"
 
100
                        exit 0
 
101
                fi
 
102
        done
 
103
}
 
104
 
 
105
 
 
106
#
 
107
# Set kernel setting, showing an error if this fails.
 
108
#
 
109
# Parameter 1: sysctl/proc path
 
110
# Parameter 2: the value
 
111
#
 
112
set_sysctl() {
 
113
        $LM_VERBOSE && echo "Executing: echo $2 > $1" >> $OUTPUT
 
114
        if ! echo "$2" > "$1" ; then
 
115
                echo "SETTING OF KERNEL PARAMETER FAILED: echo $2 \> $1"
 
116
        fi
 
117
}
 
118
 
 
119
 
 
120
if [ "$CONTROL_READAHEAD" -ne 0 ] ; then
 
121
        if /sbin/blockdev --help 2>&1 | grep -Fq -- '--setfra' ; then
 
122
                READAHEAD_OPTION=--setfra                                       
 
123
        else
 
124
                READAHEAD_OPTION=--setra
 
125
                if [ "$KLEVEL" = "2.4" ] ; then
 
126
                        echo "Warning: Running a 2.4 kernel with blockdev that does not support --setfra."
 
127
                        echo "File system readahead will not function properly."
 
128
                fi
 
129
        fi
 
130
fi
 
131
 
 
132
 
 
133
 
 
134
if [ $CONTROL_NOATIME -eq 1 ] ; then
 
135
        if [ "$KLEVEL" = "2.4" ] ; then
 
136
                $LM_VERBOSE && echo "Relatime is not supported on 2.4 kernels. Using noatime instead" >> $OUTPUT 
 
137
                USE_RELATIME=0
 
138
        elif [ "$KLEVEL" = "2.6" -a "$KMINOR" -lt 23 ] ; then
 
139
                $LM_VERBOSE && echo "Relatime is not supported on kernels before 2.6.23. Using noatime instead." >> $OUTPUT
 
140
                USE_RELATIME=0
 
141
        fi
 
142
        if [ "$USE_RELATIME" = 1 ] ; then
 
143
                NOATIME_OPT=",relatime"
 
144
        else
 
145
                NOATIME_OPT=",noatime"
 
146
        fi
 
147
fi
 
148
 
 
149
 
 
150
# Adjust kernel settings and mount options (but only if data loss 
 
151
# sensitive features are active)
 
152
if [ "$ACTIVATE_WITH_POSSIBLE_DATA_LOSS" -eq 1 ] ; then
 
153
        # Take MAX_LOST_WORK_SECONDS from LM_BATT_MAX_LOST_WORK_SECONDS or LM_AC_MAX_LOST_WORK_SECONDS_WITH_LM, depending on power state.
 
154
        MAX_LOST_WORK_SECONDS=$LM_BATT_MAX_LOST_WORK_SECONDS
 
155
        if [ $ON_AC -eq 1 ] ; then
 
156
                MAX_LOST_WORK_SECONDS=$LM_AC_MAX_LOST_WORK_SECONDS
 
157
        fi
 
158
 
 
159
        AGE=$((100*$MAX_LOST_WORK_SECONDS))
 
160
        XFS_AGE=$(($XFS_HZ*$MAX_LOST_WORK_SECONDS))
 
161
 
 
162
        if [ -d /proc/sys/vm/pagebuf ] ; then
 
163
                # (For 2.4 and early 2.6.)
 
164
                # This only needs to be set, not reset -- it is only used when
 
165
                # laptop mode is enabled.
 
166
                $LM_VERBOSE && echo "Adjusting XFS kernel parameters for 2.4 and early 2.6 kernels." >> $OUTPUT
 
167
                set_sysctl /proc/sys/vm/pagebuf/lm_flush_age  $XFS_AGE
 
168
                set_sysctl /proc/sys/fs/xfs/lm_sync_interval  $XFS_AGE
 
169
        elif [ -f /proc/sys/fs/xfs/lm_age_buffer ] ; then
 
170
                # (A couple of early 2.6 laptop mode patches had these.)
 
171
                # This only needs to be set, not reset -- it is only used when
 
172
                # laptop mode is enabled.
 
173
                $LM_VERBOSE && echo "Adjusting XFS kernel parameters for early patched 2.6 kernels." >> $OUTPUT
 
174
                set_sysctl /proc/sys/fs/xfs/lm_age_buffer    $XFS_AGE
 
175
                set_sysctl /proc/sys/fs/xfs/lm_sync_interval $XFS_AGE
 
176
        elif [ -f /proc/sys/fs/xfs/age_buffer ] ; then
 
177
                # (2.6.6)
 
178
                # But not for these -- they are also used in normal
 
179
                # operation.
 
180
                $LM_VERBOSE && echo "Adjusting XFS kernel parameters for 2.6.6 kernel." >> $OUTPUT
 
181
                set_sysctl /proc/sys/fs/xfs/age_buffer       $XFS_AGE 
 
182
                set_sysctl /proc/sys/fs/xfs/sync_interval    $XFS_AGE
 
183
        elif [ -f /proc/sys/fs/xfs/age_buffer_centisecs ] ; then
 
184
                # (2.6.7 upwards)
 
185
                # And not for these either. These are in centisecs,
 
186
                # not USER_HZ, so we have to use $AGE, not $XFS_AGE.
 
187
                $LM_VERBOSE && echo "Adjusting XFS kernel parameters for >2.6.7 kernel." >> $OUTPUT
 
188
                set_sysctl /proc/sys/fs/xfs/age_buffer_centisecs  $AGE
 
189
                set_sysctl /proc/sys/fs/xfs/xfssyncd_centisecs    $AGE
 
190
                set_sysctl /proc/sys/fs/xfs/xfsbufd_centisecs     3000
 
191
        fi
 
192
 
 
193
        case "$KLEVEL" in
 
194
                "2.4")
 
195
                        $LM_VERBOSE && echo "Adjusting 2.4 kernel parameters to enable laptop mode." >> $OUTPUT
 
196
                        set_sysctl /proc/sys/vm/laptop_mode   1
 
197
                        set_sysctl /proc/sys/vm/bdflush       "30 500 0 0 $AGE $AGE 60 20 0"
 
198
                        ;;
 
199
                "2.6")
 
200
                        $LM_VERBOSE && echo "Adjusting 2.6 kernel parameters to enable laptop mode." >> $OUTPUT
 
201
                        set_sysctl /proc/sys/vm/laptop_mode               "$LM_SECONDS_BEFORE_SYNC"
 
202
                        set_sysctl /proc/sys/vm/dirty_writeback_centisecs "$AGE"
 
203
                        set_sysctl /proc/sys/vm/dirty_expire_centisecs    "$AGE"
 
204
                        set_sysctl /proc/sys/vm/dirty_ratio               "$LM_DIRTY_RATIO"
 
205
                        set_sysctl /proc/sys/vm/dirty_background_ratio    "$LM_DIRTY_BACKGROUND_RATIO"
 
206
                        ;;
 
207
        esac
 
208
        if [ $CONTROL_MOUNT_OPTIONS -eq 1 ]; then
 
209
                $LM_VERBOSE && echo "Remounting filesystems." >> $OUTPUT
 
210
                cat /etc/mtab | while read DEV MP FST OPTS DUMP PASS ; do
 
211
                        case "$FST" in 
 
212
                                rootfs|unionfs|tmpfs|squashfs|sysfs|usbfs|proc|devpts)
 
213
                                        continue
 
214
                                        ;;
 
215
                        esac
 
216
                                        
 
217
                        DO=0
 
218
                        
 
219
                        case " $PARTITIONS " in
 
220
                                *" $DEV "*)
 
221
                                        DO=1
 
222
                                        $LM_VERBOSE && echo "$DEV found in PARTITIONS." >> $OUTPUT
 
223
                                        ;;
 
224
                                *)
 
225
                                        $LM_VERBOSE && echo "$DEV not found in PARTITIONS." >> $OUTPUT
 
226
                                        ;;
 
227
                        esac
 
228
                        case " $PARTITIONS " in
 
229
                                *" $MP "*)
 
230
                                        DO=1
 
231
                                        $LM_VERBOSE && echo "$MP found in PARTITIONS." >> $OUTPUT
 
232
                                        ;;
 
233
                                *)
 
234
                                        $LM_VERBOSE && echo "$MP not found in PARTITIONS." >> $OUTPUT
 
235
                        esac
 
236
                        case " $PARTITIONS " in
 
237
                                *" auto "*)
 
238
                                        $LM_VERBOSE && echo "Checking $DEV against HD because PARTITIONS contains \"auto\"." >> $OUTPUT
 
239
                                        for THISHD in $HD ; do
 
240
                                                $LM_VERBOSE && echo "   Considering $THISHD." >> $OUTPUT
 
241
                                                case " $DEV" in *"$THISHD"*)
 
242
                                                        DO=1
 
243
                                                        $LM_VERBOSE && echo "   $DEV contains $THISHD, which is in HD, so we will remount it." >> $OUTPUT
 
244
                                                        break
 
245
                                                        ;;
 
246
                                                esac
 
247
                                        done
 
248
                                        ;;
 
249
                        esac
 
250
                        if [ "$DO" -ne 0 ] ; then
 
251
                                $LM_VERBOSE && echo "Original options: $OPTS" >> $OUTPUT
 
252
                                if [ "$WAS_ACTIVE" -eq 0 ] ; then
 
253
                                        # Coming from inactive state: save last known mount options for the device.
 
254
                                        $LM_VERBOSE && echo "Updating /var/run/laptop-mode-tools/nolm-mountopts."  >> $OUTPUT
 
255
                                        if [ -f /var/run/laptop-mode-tools/nolm-mountopts ] ; then 
 
256
                                                sed -i "s|^$DEV .*$||" /var/run/laptop-mode-tools/nolm-mountopts
 
257
                                        fi
 
258
                                        echo $DEV $OPTS >> /var/run/laptop-mode-tools/nolm-mountopts
 
259
                                else
 
260
                                        $LM_VERBOSE && echo "Not updating /var/run/laptop-mode-tools/nolm-mountopts because laptop mode was already active." >> $OUTPUT
 
261
                                fi
 
262
                                if [ "$FST" = 'unknown' ]; then
 
263
                                        $LM_VERBOSE && echo "Deducing fstype for $MP." >> $OUTPUT
 
264
                                        FST=$(deduce_fstype $MP)
 
265
                                        $LM_VERBOSE && echo "Deduced fstype for $MP as $FST." >> $OUTPUT
 
266
                                fi
 
267
                                # Strip stuff like ext3,ext2 into just ext3.
 
268
                                $LM_VERBOSE && echo "Reducing file system type."  >> $OUTPUT
 
269
                                FST=${FST%%,*}
 
270
                                case "$FST" in
 
271
                                        "ext3"|"reiserfs")
 
272
                                                $LM_VERBOSE && echo "Removing commit mount option from original options."  >> $OUTPUT
 
273
                                                PARSEDOPTS="$(remove_numeric_mount_option commit "$OPTS")"
 
274
                                                $LM_VERBOSE && echo "Executing: mount $DEV $MP -t $FST -o remount,$PARSEDOPTS,commit=$MAX_LOST_WORK_SECONDS$NOATIME_OPT" >> $OUTPUT
 
275
                                                if (! mount $DEV $MP -t $FST -o remount,$PARSEDOPTS,commit=$MAX_LOST_WORK_SECONDS$NOATIME_OPT) ; then
 
276
                                                        if [ "$FST" = "ext3" -a "$MP" = "/" ] ; then
 
277
                                                                echo "BIG FAT WARNING: Your root filesystem mounted as ext3 seems to lack support for"
 
278
                                                                echo "the commit mount option. This usually means that your root filesystem is"
 
279
                                                                echo "mounted as ext2 because there is no ext3 support in the kernel at boot time,"
 
280
                                                                echo "usually because you compiled ext3 as a module and don't load it in an initrd."
 
281
                                                                echo "Note that on recent 2.6 kernels, /proc/mounts shows the correct fs type for"
 
282
                                                                echo "the device /dev/root. You can check your actual root filesystem mount type"
 
283
                                                                echo "there. To fix the problem, either make ext3 available at boot time by compiling"
 
284
                                                                echo "it statically into the kernel, or configure the correct filesystem type in"
 
285
                                                                echo "/etc/fstab."
 
286
                                                        fi
 
287
                                                fi
 
288
                                                ;;
 
289
                                        *)
 
290
                                                $LM_VERBOSE && echo "Executing: mount $DEV $MP -t $FST -o remount,$OPTS$NOATIME_OPT" >> $OUTPUT
 
291
                                                mount $DEV $MP -t $FST -o remount,$OPTS$NOATIME_OPT
 
292
                                                ;;
 
293
                                esac
 
294
                                if [ -b $DEV -a "$CONTROL_READAHEAD" -ne 0 ] ; then
 
295
                                        $LM_VERBOSE && echo "Executing: /sbin/blockdev $READAHEAD_OPTION $(($LM_READAHEAD * 2)) $DEV" >> $OUTPUT
 
296
                                        /sbin/blockdev $READAHEAD_OPTION $(($LM_READAHEAD * 2)) $DEV >> $OUTPUT 2>&1
 
297
                                fi
 
298
                        fi
 
299
                done
 
300
        fi
 
301
else
 
302
        # DEACTIVATE w.r.t. kernel options and mount point settings
 
303
        U_AGE=$((100*$DEF_UPDATE))
 
304
        B_AGE=$((100*$DEF_MAX_AGE))
 
305
        set_sysctl /proc/sys/vm/laptop_mode 0
 
306
        if [ -f /proc/sys/fs/xfs/age_buffer -a ! -f /proc/sys/fs/xfs/lm_age_buffer ] ; then
 
307
                # These need to be restored, if there are no lm_*.
 
308
                $LM_VERBOSE && echo "Restoring default XFS settings (pre-centisecs version)." >> $OUTPUT
 
309
                set_sysctl /proc/sys/fs/xfs/age_buffer    $(($XFS_HZ*$DEF_XFS_AGE_BUFFER))
 
310
                set_sysctl /proc/sys/fs/xfs/sync_interval $(($XFS_HZ*$DEF_XFS_SYNC_INTERVAL))
 
311
        elif [ -f /proc/sys/fs/xfs/age_buffer_centisecs ] ; then
 
312
                # These need to be restored as well.
 
313
                $LM_VERBOSE && echo "Restoring default XFS settings." >> $OUTPUT
 
314
                set_sysctl /proc/sys/fs/xfs/age_buffer_centisecs  $((100*$DEF_XFS_AGE_BUFFER))
 
315
                set_sysctl /proc/sys/fs/xfs/xfssyncd_centisecs    $((100*$DEF_XFS_SYNC_INTERVAL))
 
316
                set_sysctl /proc/sys/fs/xfs/xfsbufd_centisecs     $((100*$DEF_XFS_BUFD_INTERVAL))
 
317
        fi
 
318
        case "$KLEVEL" in
 
319
                "2.4")
 
320
                        $LM_VERBOSE && echo "Adjusting 2.4 kernel parameters to disable laptop mode." >> $OUTPUT
 
321
                        set_sysctl /proc/sys/vm/bdflush "30 500 0 0 $U_AGE $B_AGE 60 20 0"
 
322
                        ;;
 
323
                "2.6")
 
324
                        $LM_VERBOSE && echo "Adjusting 2.6 kernel parameters to disable laptop mode." >> $OUTPUT
 
325
                        set_sysctl /proc/sys/vm/dirty_writeback_centisecs   "$U_AGE"
 
326
                        set_sysctl /proc/sys/vm/dirty_expire_centisecs      "$B_AGE"
 
327
                        set_sysctl /proc/sys/vm/dirty_ratio                 "$NOLM_DIRTY_RATIO"
 
328
                        set_sysctl /proc/sys/vm/dirty_background_ratio      "$NOLM_DIRTY_BACKGROUND_RATIO"
 
329
                        ;;
 
330
        esac
 
331
        if [ $CONTROL_MOUNT_OPTIONS -eq 1 ] ; then
 
332
                $LM_VERBOSE && echo "Remounting filesystems." >> $OUTPUT
 
333
                cat /etc/mtab | while read DEV MP FST OPTS DUMP PASS ; do
 
334
                        DO=0
 
335
                        case " $PARTITIONS " in
 
336
                                *" $DEV "*)
 
337
                                        DO=1
 
338
                                        $LM_VERBOSE && echo "$DEV found in PARTITIONS." >> $OUTPUT
 
339
                                        ;;
 
340
                                *)
 
341
                                        $LM_VERBOSE && echo "$DEV not found in PARTITIONS." >> $OUTPUT
 
342
                                        ;;
 
343
                        esac
 
344
                        case " $PARTITIONS " in
 
345
                                *" $MP "*)
 
346
                                        DO=1
 
347
                                        $LM_VERBOSE && echo "$MP found in PARTITIONS." >> $OUTPUT
 
348
                                        ;;
 
349
                                *)
 
350
                                        $LM_VERBOSE && echo "$MP not found in PARTITIONS." >> $OUTPUT
 
351
                                        ;;
 
352
                        esac
 
353
                        case " $PARTITIONS " in
 
354
                                *" auto "*)
 
355
                                        $LM_VERBOSE && echo "Checking $DEV against HD because PARTITIONS contains \"auto\"." >> $OUTPUT
 
356
                                        for THISHD in $HD ; do
 
357
                                                $LM_VERBOSE && echo "   Considering $THISHD." >> $OUTPUT
 
358
                                                case " $DEV" in *"$THISHD"*)
 
359
                                                        DO=1
 
360
                                                        $LM_VERBOSE && echo "   $DEV contains $THISHD, which is in HD, so we will remount it." >> $OUTPUT
 
361
                                                        break
 
362
                                                        ;;
 
363
                                                esac
 
364
                                        done
 
365
                                        ;;
 
366
                        esac
 
367
                        if [ "$DO" -ne 0 ] ; then
 
368
                                # Reset commit and atime options to defaults.
 
369
                                $LM_VERBOSE && echo "Original options: $OPTS" >> $OUTPUT
 
370
                                if [ "$FST" = 'unknown' ]; then
 
371
                                        $LM_VERBOSE && echo "Deducing fstype for $MP." >> $OUTPUT
 
372
                                        FST=$(deduce_fstype $MP)
 
373
                                        $LM_VERBOSE && echo "Deduced fstype for $MP as $FST." >> $OUTPUT
 
374
                                fi
 
375
                                
 
376
                                # Strip stuff like ext3,ext2 into just ext3.
 
377
                                $LM_VERBOSE && echo "Reducing file system type." >> $OUTPUT
 
378
                                FST=${FST%%,*}
 
379
                                
 
380
                                # Retrieve original non-laptop mode mount options and restore them.
 
381
                                # If the file that stores them doesn't exist, then laptop mode
 
382
                                # has never been started.
 
383
                                if [ "$WAS_ACTIVE" -ne 0 -a -f /var/run/laptop-mode-tools/nolm-mountopts ] ; then                                               
 
384
                                        SAVED_OPTS=`grep "^$DEV " /var/run/laptop-mode-tools/nolm-mountopts`
 
385
                                        SAVED_OPTS=${SAVED_OPTS#* } # trim device name
 
386
                                
 
387
                                        case "$FST" in
 
388
                                                "ext3"|"reiserfs")                                                              
 
389
                                                        PARSEDOPTS="$(replace_numeric_mount_option commit commit=0 $SAVED_OPTS $OPTS)"
 
390
                                                        PARSEDOPTS="$(replace_atime_mount_option $SAVED_OPTS $PARSEDOPTS)"
 
391
                                                        $LM_VERBOSE && echo "Executing: mount $DEV $MP -t $FST -o remount,$PARSEDOPTS" >> $OUTPUT
 
392
                                                        mount $DEV $MP -t $FST -o remount,$PARSEDOPTS
 
393
                                                        ;;
 
394
                                                *)
 
395
                                                        PARSEDOPTS="$(replace_atime_mount_option $SAVED_OPTS $OPTS)"
 
396
                                                        $LM_VERBOSE && echo "Executing: mount $DEV $MP -t $FST -o remount,$PARSEDOPTS" >> $OUTPUT
 
397
                                                        mount $DEV $MP -t $FST -o remount,$PARSEDOPTS
 
398
                                                        ;;
 
399
                                        esac
 
400
                                else
 
401
                                        $LM_VERBOSE && echo "No saved mount options, so apparently we never remounted this filesystem during this session." >> $OUTPUT
 
402
                                        $LM_VERBOSE && echo "Not remounting." >> $OUTPUT
 
403
                                fi
 
404
                                if [ -b $DEV -a "$CONTROL_READAHEAD" -ne 0 ] ; then
 
405
                                        $LM_VERBOSE && echo "Executing: /sbin/blockdev $READAHEAD_OPTION $(($NOLM_READAHEAD * 2)) $DEV" >> $OUTPUT
 
406
                                        /sbin/blockdev $READAHEAD_OPTION $(($NOLM_READAHEAD * 2)) $DEV >> $OUTPUT 2>&1
 
407
                                fi
 
408
                        fi
 
409
                done
 
410
        fi
 
411
fi
 
412