85 lines
2.2 KiB
Diff
85 lines
2.2 KiB
Diff
--- hdparm-9.28/wiper/wiper.sh.orig 2010-03-09 06:17:37.000000000 -0800
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--- hdparm-9.28/wiper/wiper.sh 2010-05-15 03:08:02.182856971 -0700
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@@ -29,7 +29,7 @@
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function usage_error(){
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echo >&2
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echo "Linux tune-up (TRIM) utility for SATA SSDs"
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- echo "Usage: $0 [--verbose] [--commit] <mount_point|block_device>" >&2
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+ echo "Usage: $0 [--max-ranges <num>] [--verbose] [--commit] <mount_point|block_device>" >&2
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echo " Eg: $0 /dev/sda1" >&2
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echo >&2
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exit 1
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@@ -44,6 +44,7 @@
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export verbose=0
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commit=""
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+max_ranges=-1
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destroy_me=""
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argc=$#
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arg=""
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@@ -51,6 +52,10 @@
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commit=yes
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elif [ "$1" = "--verbose" ]; then
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verbose=$((verbose + 1))
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+ elif [ "$1" = "--max-ranges" -a $argc -gt 1 ]; then
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+ max_ranges=$2
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+ argc=$((argc - 1))
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+ shift
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elif [ "$1" = "" ]; then
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usage_error
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else
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@@ -499,6 +550,18 @@
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fi
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fi
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+## Different SSD's have a different maximum number of ranges they'll accept
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+## in a single TRIM command.
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+if [ $max_ranges -le 0 ] ; then
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+ model=`$HDPARM -I $rawdev | $GAWK '/Model Number/ { print $NF }'`
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+ case "$model" in
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+ SSDSA[12]*) max_ranges=512 ;; # Intel X18-M/X25-M
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+ OCZ-VERTEX2) max_ranges=64 ;; # OCZ Vertex2
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+ *) max_ranges=65535
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+ esac
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+fi
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+[ $verbose -gt 0 ] && echo "max-ranges = $max_ranges"
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+
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## All ready. Now let the user know exactly what we intend to do:
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##
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mountstatus="$fstype non-mounted"
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@@ -608,7 +671,7 @@
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nsectors += count;
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while (count > 0) {
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this_count = (count > 65535) ? 65535 : count
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- printf "%u:%u ", lba, this_count
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+ printf "%u:%u \n", lba, this_count
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if (verbose > 1)
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printf "%u:%u ", lba, this_count > "/dev/stderr"
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lba += this_count
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@@ -695,6 +758,22 @@
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-v verbose="$verbose" \
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-v xfs_blksects="$xfs_blksects" \
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-v xfs_agoffsets="$xfs_agoffsets" \
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- "$GAWKPROG" | $TRIM
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+ "$GAWKPROG" | (
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+ i=0
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+ while read range ; do
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+ ranges=$ranges" "$range
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+ ((i++))
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+ if [ $i -ge $max_ranges ] ; then
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+ [ $verbose -gt 0 ] && echo -e "Trim ranges:"$ranges"\n"
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+ echo $ranges | $TRIM
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+ ranges=""
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+ i=0
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+ fi
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+ done
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+ if [ $i -gt 0 ] ; then
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+ [ $verbose -gt 0 ] && echo -e "Trim ranges:"$ranges"\n"
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+ echo $ranges | $TRIM
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+ fi
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+ )
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do_cleanup $?
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