This patch adds the gfp_mask argument to alloc_rq_tio().
No functional change.
This patch is a preparation for PATCH 9, which needs to allocate
tio (for barrier I/O) with different allocation flag (GFP_NOIO) from
the one in the normal I/O code path.
Signed-off-by: Kiyoshi Ueda <k-ueda@xxxxxxxxxxxxx>
Signed-off-by: Jun'ichi Nomura <j-nomura@xxxxxxxxxxxxx>
Cc: Alasdair G Kergon <agk@xxxxxxxxxx>
---
drivers/md/dm.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
Index: 2.6.32-rc4/drivers/md/dm.c
===================================================================
--- 2.6.32-rc4.orig/drivers/md/dm.c
+++ 2.6.32-rc4/drivers/md/dm.c
@@ -430,9 +430,10 @@ static void free_tio(struct mapped_devic
mempool_free(tio, md->tio_pool);
}
-static struct dm_rq_target_io *alloc_rq_tio(struct mapped_device *md)
+static struct dm_rq_target_io *alloc_rq_tio(struct mapped_device *md,
+ gfp_t gfp_mask)
{
- return mempool_alloc(md->tio_pool, GFP_ATOMIC);
+ return mempool_alloc(md->tio_pool, gfp_mask);
}
static void free_rq_tio(struct dm_rq_target_io *tio)
@@ -1469,7 +1470,7 @@ static int dm_prep_fn(struct request_que
return BLKPREP_KILL;
}
- tio = alloc_rq_tio(md); /* Only one for each original request */
+ tio = alloc_rq_tio(md, GFP_ATOMIC);
if (!tio)
/* -ENOMEM */
return BLKPREP_DEFER;
--
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