diff options
| author | Tejun Heo <tj@kernel.org> | 2012-04-01 12:30:01 -0700 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2012-04-01 12:55:00 -0700 |
| commit | 959d851caa48829eb85cb85aa949fd6b4c5d5bc6 (patch) | |
| tree | 3ba9c94ec346275fb44c4f0d1cd2537cdff8d811 /drivers/scsi/libiscsi_tcp.c | |
| parent | a5567932fc926739e29e98487128080f40c61710 (diff) | |
| parent | 48ddbe194623ae089cc0576e60363f2d2e85662a (diff) | |
Merge branch 'for-3.5' of ../cgroup into block/for-3.5/core-merged
cgroup/for-3.5 contains the following changes which blk-cgroup needs
to proceed with the on-going cleanup.
* Dynamic addition and removal of cftypes to make config/stat file
handling modular for policies.
* cgroup removal update to not wait for css references to drain to fix
blkcg removal hang caused by cfq caching cfqgs.
Pull in cgroup/for-3.5 into block/for-3.5/core. This causes the
following conflicts in block/blk-cgroup.c.
* 761b3ef50e "cgroup: remove cgroup_subsys argument from callbacks"
conflicts with blkiocg_pre_destroy() addition and blkiocg_attach()
removal. Resolved by removing @subsys from all subsys methods.
* 676f7c8f84 "cgroup: relocate cftype and cgroup_subsys definitions in
controllers" conflicts with ->pre_destroy() and ->attach() updates
and removal of modular config. Resolved by dropping forward
declarations of the methods and applying updates to the relocated
blkio_subsys.
* 4baf6e3325 "cgroup: convert all non-memcg controllers to the new
cftype interface" builds upon the previous item. Resolved by adding
->base_cftypes to the relocated blkio_subsys.
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/scsi/libiscsi_tcp.c')
| -rw-r--r-- | drivers/scsi/libiscsi_tcp.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/drivers/scsi/libiscsi_tcp.c b/drivers/scsi/libiscsi_tcp.c index 5715a3d0a3d..552e8a2b6f5 100644 --- a/drivers/scsi/libiscsi_tcp.c +++ b/drivers/scsi/libiscsi_tcp.c @@ -135,7 +135,7 @@ static void iscsi_tcp_segment_map(struct iscsi_segment *segment, int recv) if (recv) { segment->atomic_mapped = true; - segment->sg_mapped = kmap_atomic(sg_page(sg), KM_SOFTIRQ0); + segment->sg_mapped = kmap_atomic(sg_page(sg)); } else { segment->atomic_mapped = false; /* the xmit path can sleep with the page mapped so use kmap */ @@ -149,7 +149,7 @@ void iscsi_tcp_segment_unmap(struct iscsi_segment *segment) { if (segment->sg_mapped) { if (segment->atomic_mapped) - kunmap_atomic(segment->sg_mapped, KM_SOFTIRQ0); + kunmap_atomic(segment->sg_mapped); else kunmap(sg_page(segment->sg)); segment->sg_mapped = NULL; @@ -1170,6 +1170,24 @@ void iscsi_tcp_r2tpool_free(struct iscsi_session *session) } EXPORT_SYMBOL_GPL(iscsi_tcp_r2tpool_free); +int iscsi_tcp_set_max_r2t(struct iscsi_conn *conn, char *buf) +{ + struct iscsi_session *session = conn->session; + unsigned short r2ts = 0; + + sscanf(buf, "%hu", &r2ts); + if (session->max_r2t == r2ts) + return 0; + + if (!r2ts || !is_power_of_2(r2ts)) + return -EINVAL; + + session->max_r2t = r2ts; + iscsi_tcp_r2tpool_free(session); + return iscsi_tcp_r2tpool_alloc(session); +} +EXPORT_SYMBOL_GPL(iscsi_tcp_set_max_r2t); + void iscsi_tcp_conn_get_stats(struct iscsi_cls_conn *cls_conn, struct iscsi_stats *stats) { |