diff options
Diffstat (limited to 'dm-cache-dirty-flag-was-mistakenly-being-cleared-whe.patch')
| -rw-r--r-- | dm-cache-dirty-flag-was-mistakenly-being-cleared-whe.patch | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/dm-cache-dirty-flag-was-mistakenly-being-cleared-whe.patch b/dm-cache-dirty-flag-was-mistakenly-being-cleared-whe.patch deleted file mode 100644 index e64136a27..000000000 --- a/dm-cache-dirty-flag-was-mistakenly-being-cleared-whe.patch +++ /dev/null @@ -1,42 +0,0 @@ -From: Joe Thornber <ejt@redhat.com> -Date: Thu, 27 Nov 2014 12:26:46 +0000 -Subject: [PATCH] dm cache: dirty flag was mistakenly being cleared when - promoting via overwrite - -If the incoming bio is a WRITE and completely covers a block then we -don't bother to do any copying for a promotion operation. Once this is -done the cache block and origin block will be different, so we need to -set it to 'dirty'. - -Signed-off-by: Joe Thornber <ejt@redhat.com> -Signed-off-by: Mike Snitzer <snitzer@redhat.com> -Cc: stable@vger.kernel.org ---- - drivers/md/dm-cache-target.c | 10 +++++++--- - 1 file changed, 7 insertions(+), 3 deletions(-) - -diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c -index 6f7086355691..387b93d81138 100644 ---- a/drivers/md/dm-cache-target.c -+++ b/drivers/md/dm-cache-target.c -@@ -951,10 +951,14 @@ static void migration_success_post_commit(struct dm_cache_migration *mg) - } - - } else { -- clear_dirty(cache, mg->new_oblock, mg->cblock); -- if (mg->requeue_holder) -+ if (mg->requeue_holder) { -+ clear_dirty(cache, mg->new_oblock, mg->cblock); - cell_defer(cache, mg->new_ocell, true); -- else { -+ } else { -+ /* -+ * The block was promoted via an overwrite, so it's dirty. -+ */ -+ set_dirty(cache, mg->new_oblock, mg->cblock); - bio_endio(mg->new_ocell->holder, 0); - cell_defer(cache, mg->new_ocell, false); - } --- -2.1.0 - |