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authorBryn Reeves <breeves@redhat.com>2006-10-03 01:15:43 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-03 08:04:16 -0700
commit999d816851c3e080412a19558f111d01852d2f04 (patch)
tree8b75a8e97d6fa7c41e81169e9b2ba5f7806e23a9 /drivers/md
parent3cb4021453a69585e458ec2177677c0c1300dccf (diff)
downloadop-kernel-dev-999d816851c3e080412a19558f111d01852d2f04.zip
op-kernel-dev-999d816851c3e080412a19558f111d01852d2f04.tar.gz
[PATCH] dm table: add target flush
This patch adds support for a per-target dm_flush_fn method. This is needed to allow dm-loop to invalidate page cache mappings in response to BLKFLSBUF ioctl commands. Signed-off-by: Bryn Reeves <breeves@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/dm-table.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 4920998..05befa9 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -1001,6 +1001,11 @@ int dm_table_flush_all(struct dm_table *t)
{
struct list_head *d, *devices = dm_table_get_devices(t);
int ret = 0;
+ unsigned i;
+
+ for (i = 0; i < t->num_targets; i++)
+ if (t->targets[i].type->flush)
+ t->targets[i].type->flush(&t->targets[i]);
for (d = devices->next; d != devices; d = d->next) {
struct dm_dev *dd = list_entry(d, struct dm_dev, list);
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