Hello All ,
On Thu, 3 Aug 2006, David Greaves wrote:
Neil Brown wrote:
write-bits-here-to-dirty-them-in-the-bitmap
is probably (no, definitely) too verbose.
Any better suggestions?
It's not actually a bitmap is it?
It takes a number or range and *operates* on a bitmap.
so:
Neil Brown wrote:
Is 'bitmap' the best name for the sysfs file?
It seems a bit generic to me.
write-bits-here-to-dirty-them-in-the-bitmap
is probably (no, definitely) too verbose.
dirty-in-bitmap
maybe?
bitmap-set-bits
Any better suggestions?
I like bitmap-set-bits or bitmap-dirty
Mike Snitzer wrote:
On 7/26/06, Paul Clements [EMAIL PROTECTED] wrote:
Mike Snitzer wrote:
Also, what is the interface one should use to collect dirty bits from
the primary's bitmap?
Whatever you'd like. scp the bitmap file over or collect the ranges into
a file and scp that over, or
On 7/26/06, Paul Clements [EMAIL PROTECTED] wrote:
Mike Snitzer wrote:
I tracked down the thread you referenced and these posts (by you)
seems to summarize things well:
http://marc.theaimsgroup.com/?l=linux-raidm=16563016418w=2
Mike Snitzer wrote:
On 7/26/06, Paul Clements [EMAIL PROTECTED] wrote:
Right. At the time of the failover, there were (probably) blocks that
were out of sync between the primary and secondary.
OK, so now that I understand the need to merge the bitmaps... the
various scenarios that create
On 7/25/06, Paul Clements [EMAIL PROTECTED] wrote:
This patch (tested against 2.6.18-rc1-mm1) adds a new sysfs interface
that allows the bitmap of an array to be dirtied. The interface is
write-only, and is used as follows:
echo 1000 /sys/block/md2/md/bitmap
(dirty the bit for chunk 1000
Mike Snitzer wrote:
I tracked down the thread you referenced and these posts (by you)
seems to summarize things well:
http://marc.theaimsgroup.com/?l=linux-raidm=16563016418w=2
http://marc.theaimsgroup.com/?l=linux-raidm=17515400864w=2
But for clarity's sake, could you elaborate on the
On 7/26/06, Paul Clements [EMAIL PROTECTED] wrote:
Mike Snitzer wrote:
I tracked down the thread you referenced and these posts (by you)
seems to summarize things well:
http://marc.theaimsgroup.com/?l=linux-raidm=16563016418w=2
This patch (tested against 2.6.18-rc1-mm1) adds a new sysfs interface
that allows the bitmap of an array to be dirtied. The interface is
write-only, and is used as follows:
echo 1000 /sys/block/md2/md/bitmap
(dirty the bit for chunk 1000 [offset 0] in the in-memory and on-disk
bitmaps of
On Tue, 25 Jul 2006, Paul Clements wrote:
@@ -1322,6 +1324,18 @@ static void bitmap_set_memory_bits(struc
}
+/* dirty the memory and file bits for bitmap chunks s to e */
+void bitmap_dirty_bits(struct bitmap *bitmap, unsigned long s, unsigned long
e)
+{
+ unsigned long chunk;
+
+
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