Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751418AbdFZKCV (ORCPT ); Mon, 26 Jun 2017 06:02:21 -0400 Received: from mail-wm0-f48.google.com ([74.125.82.48]:37956 "EHLO mail-wm0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751895AbdFZJ61 (ORCPT ); Mon, 26 Jun 2017 05:58:27 -0400 From: "=?UTF-8?q?Javier=20Gonz=C3=A1lez?=" X-Google-Original-From: =?UTF-8?q?Javier=20Gonz=C3=A1lez?= To: mb@lightnvm.io, axboe@fb.com Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, =?UTF-8?q?Javier=20Gonz=C3=A1lez?= , =?UTF-8?q?Matias=20Bj=C3=B8rling?= Subject: [PATCH 12/20] lightnvm: pblk: simplify meta. memory allocation Date: Mon, 26 Jun 2017 11:57:21 +0200 Message-Id: <1498471049-25505-13-git-send-email-javier@cnexlabs.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1498471049-25505-1-git-send-email-javier@cnexlabs.com> References: <1498471049-25505-1-git-send-email-javier@cnexlabs.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3282 Lines: 94 smeta size will always be suitable for a kmalloc allocation. Simplify the code and leave the vmalloc fallback only for emeta, where the pblk configuration has an impact. Signed-off-by: Javier González Signed-off-by: Matias Bjørling --- drivers/lightnvm/pblk-core.c | 3 ++- drivers/lightnvm/pblk-init.c | 9 ++++----- drivers/lightnvm/pblk-write.c | 3 ++- drivers/lightnvm/pblk.h | 1 - 4 files changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/lightnvm/pblk-core.c b/drivers/lightnvm/pblk-core.c index 29565f89a85e..b5f7f3f19105 100644 --- a/drivers/lightnvm/pblk-core.c +++ b/drivers/lightnvm/pblk-core.c @@ -665,7 +665,8 @@ static int pblk_line_submit_emeta_io(struct pblk *pblk, struct pblk_line *line, } reinit_completion(&wait); - bio_put(bio); + if (likely(pblk->l_mg.emeta_alloc_type == PBLK_VMALLOC_META)) + bio_put(bio); if (rqd.error) { if (dir == WRITE) diff --git a/drivers/lightnvm/pblk-init.c b/drivers/lightnvm/pblk-init.c index 968c2e390cef..c49115d74e85 100644 --- a/drivers/lightnvm/pblk-init.c +++ b/drivers/lightnvm/pblk-init.c @@ -354,9 +354,9 @@ static void pblk_line_meta_free(struct pblk *pblk) kfree(l_mg->vsc_list); for (i = 0; i < PBLK_DATA_LINES; i++) { - pblk_mfree(&l_mg->sline_meta[i], l_mg->smeta_alloc_type); + kfree(l_mg->sline_meta[i]); pblk_mfree(l_mg->eline_meta[i]->buf, l_mg->emeta_alloc_type); - kfree(&l_mg->eline_meta[i]); + kfree(l_mg->eline_meta[i]); } kfree(pblk->lines); @@ -549,7 +549,6 @@ static int pblk_lines_alloc_metadata(struct pblk *pblk) /* smeta is always small enough to fit on a kmalloc memory allocation, * emeta depends on the number of LUNs allocated to the pblk instance */ - l_mg->smeta_alloc_type = PBLK_KMALLOC_META; for (i = 0; i < PBLK_DATA_LINES; i++) { l_mg->sline_meta[i] = kmalloc(lm->smeta_len, GFP_KERNEL); if (!l_mg->sline_meta[i]) @@ -603,12 +602,12 @@ static int pblk_lines_alloc_metadata(struct pblk *pblk) fail_free_emeta: while (--i >= 0) { vfree(l_mg->eline_meta[i]->buf); - kfree(&l_mg->eline_meta[i]); + kfree(l_mg->eline_meta[i]); } fail_free_smeta: for (i = 0; i < PBLK_DATA_LINES; i++) - pblk_mfree(&l_mg->sline_meta[i], l_mg->smeta_alloc_type); + kfree(l_mg->sline_meta[i]); return -ENOMEM; } diff --git a/drivers/lightnvm/pblk-write.c b/drivers/lightnvm/pblk-write.c index a29a34786ac5..3db2cbe5b788 100644 --- a/drivers/lightnvm/pblk-write.c +++ b/drivers/lightnvm/pblk-write.c @@ -442,7 +442,8 @@ int pblk_submit_meta_io(struct pblk *pblk, struct pblk_line *meta_line) list_add(&meta_line->list, &meta_line->list); spin_unlock(&l_mg->close_lock); fail_free_bio: - bio_put(bio); + if (likely(l_mg->emeta_alloc_type == PBLK_VMALLOC_META)) + bio_put(bio); fail_free_rqd: pblk_free_rqd(pblk, rqd, READ); return ret; diff --git a/drivers/lightnvm/pblk.h b/drivers/lightnvm/pblk.h index eb8515fd9044..6c8d01198e8b 100644 --- a/drivers/lightnvm/pblk.h +++ b/drivers/lightnvm/pblk.h @@ -446,7 +446,6 @@ struct pblk_line_mgmt { __le32 *vsc_list; /* Valid sector counts for all lines */ /* Metadata allocation type: VMALLOC | KMALLOC */ - int smeta_alloc_type; int emeta_alloc_type; /* Pre-allocated metadata for data lines */ -- 2.7.4