diff options
| author | Ingo Molnar <mingo@kernel.org> | 2012-04-13 09:50:21 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-04-13 09:50:21 +0200 |
| commit | 659c36fcda403013a01b85da07cf2d9711e6d6c7 (patch) | |
| tree | ece2e7d0e2c19ea5a3d0ec172ad0b81a8a19021d /drivers/scsi/libiscsi_tcp.c | |
| parent | 9521d830b6341d1887dcfc2aebde23fbfa5f1473 (diff) | |
| parent | 5a7ed29c7572d00a75e8c4529e30c5ac2ef82271 (diff) | |
Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Fixes and improvements for perf/core:
. Overhaul the tools/ makefiles, gluing them to the top level Makefile, from
Borislav Petkov.
. Move the UI files from tools/perf/util/ui/ to tools/perf/ui/. Also move
the GTK+ browser to tools/perf/ui/gtk/, from Namhyung Kim.
. Only fallback to sw cycles counter on ENOENT for the hw cycles, from
Robert Richter
. Trivial fixes from Robert Richter
. Handle the autogenerated bison/flex files better, from Namhyung and Jiri Olsa.
. Navigate jump instructions in the annotate browser, just press enter or ->,
still needs support for a jump navigation history, i.e. to go back.
. Search string in the annotate browser: same keys as vim:
/ forward
n next backward/forward
? backward
. Clarify number of events/samples in the report header, from Ashay Rane
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@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) { |