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authorSteven Whitehouse <swhiteho@redhat.com>2006-08-29 17:39:34 +0200
committerSteven Whitehouse <swhiteho@redhat.com>2006-08-29 17:39:34 +0200
commit83b7a664a0c7c39ccfa4c72535dc1c001d4e7a18 (patch)
tree5ba3bbbe977c2047658b41e22d6b2abd5686bf15 /block
parent[GFS2] Allow mounting of gfs2 and gfs2meta at the same time (diff)
parentMerge master.kernel.org:/home/rmk/linux-2.6-serial (diff)
downloadlinux-83b7a664a0c7c39ccfa4c72535dc1c001d4e7a18.tar.xz
linux-83b7a664a0c7c39ccfa4c72535dc1c001d4e7a18.zip
Merge branch 'master' into gfs2
Diffstat (limited to 'block')
-rw-r--r--block/cfq-iosched.c2
-rw-r--r--block/elevator.c3
-rw-r--r--block/ll_rw_blk.c2
3 files changed, 5 insertions, 2 deletions
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index aae3123bf3ee..3a3aee08ec5f 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -1561,7 +1561,7 @@ restart:
/* ->key must be copied to avoid race with cfq_exit_queue() */
k = __cic->key;
if (unlikely(!k)) {
- cfq_drop_dead_cic(ioc, cic);
+ cfq_drop_dead_cic(ioc, __cic);
goto restart;
}
diff --git a/block/elevator.c b/block/elevator.c
index bc7baeec0d10..9b72dc7c8a5c 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -765,7 +765,8 @@ void elv_unregister(struct elevator_type *e)
read_lock(&tasklist_lock);
do_each_thread(g, p) {
task_lock(p);
- e->ops.trim(p->io_context);
+ if (p->io_context)
+ e->ops.trim(p->io_context);
task_unlock(p);
} while_each_thread(g, p);
read_unlock(&tasklist_lock);
diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c
index 61d6b3c65b66..ddd9253f9d55 100644
--- a/block/ll_rw_blk.c
+++ b/block/ll_rw_blk.c
@@ -3628,6 +3628,8 @@ struct io_context *current_io_context(gfp_t gfp_flags)
ret->nr_batch_requests = 0; /* because this is 0 */
ret->aic = NULL;
ret->cic_root.rb_node = NULL;
+ /* make sure set_task_ioprio() sees the settings above */
+ smp_wmb();
tsk->io_context = ret;
}