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Message-Id: <1476774814-6840-5-git-send-email-nobuhiro.iwamatsu.kw@hitachi.com>
Date: Tue, 18 Oct 2016 16:13:30 +0900
From: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.kw@...achi.com>
To: Anton Vorontsov <anton@...msg.org>,
Colin Cross <ccross@...roid.com>,
Kees Cook <keescook@...omium.org>,
Tony Luck <tony.luck@...el.com>
Cc: linux-kernel@...r.kernel.org,
cti.systems-productivity-manager.ts@...achi.com,
Nobuhiro Iwamatsu <nobuhiro.iwamatsu.kw@...achi.com>,
Hiraku Toyooka <hiraku.toyooka.gu@...achi.com>,
Mark Salyzyn <salyzyn@...roid.com>,
Seiji Aguchi <seiji.aguchi.tr@...achi.com>,
Shuah Khan <shuahkh@....samsung.com>
Subject: [PATCH v3 4/8] pstore: Rename 'przs' to 'dprzs' in struct ramoops_context
This commit renames 'przs' member in struct ramoops_context to 'dprzs'
so that it stands for 'dump przs'.
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.kw@...achi.com>
Signed-off-by: Hiraku Toyooka <hiraku.toyooka.gu@...achi.com>
Cc: Anton Vorontsov <anton@...msg.org>
Cc: Colin Cross <ccross@...roid.com>
Cc: Kees Cook <keescook@...omium.org>
Cc: Mark Salyzyn <salyzyn@...roid.com>
Cc: Seiji Aguchi <seiji.aguchi.tr@...achi.com>
Cc: Shuah Khan <shuahkh@....samsung.com>
Cc: Tony Luck <tony.luck@...el.com>
V3:
Rebase.
Split patch.
---
fs/pstore/ram.c | 40 +++++++++++++++++++++++-----------------
1 file changed, 23 insertions(+), 17 deletions(-)
diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c
index 4fe27fb..e27c2ec 100644
--- a/fs/pstore/ram.c
+++ b/fs/pstore/ram.c
@@ -85,9 +85,13 @@ MODULE_PARM_DESC(ramoops_ecc,
"bytes ECC)");
struct ramoops_context {
- struct persistent_ram_zone **przs;
+ /* for dump przs */
+ struct persistent_ram_zone **dprzs;
+ /* for console przs */
struct persistent_ram_zone *cprz;
+ /* for ftrace przs */
struct persistent_ram_zone *fprz;
+ /* for pmsg przs */
struct persistent_ram_zone *mprz;
phys_addr_t phys_addr;
unsigned long size;
@@ -201,7 +205,7 @@ static ssize_t ramoops_pstore_read(u64 *id, enum pstore_type_id *type,
/* Find the next valid persistent_ram_zone for DMESG */
while (cxt->dump_read_cnt < cxt->max_dump_cnt && !prz) {
- prz = ramoops_get_next_prz(cxt->przs, &cxt->dump_read_cnt,
+ prz = ramoops_get_next_prz(cxt->dprzs, &cxt->dump_read_cnt,
cxt->max_dump_cnt, id, type,
PSTORE_TYPE_DMESG, 1);
if (!prz_ok(prz))
@@ -217,12 +221,15 @@ static ssize_t ramoops_pstore_read(u64 *id, enum pstore_type_id *type,
}
if (!prz_ok(prz))
+ /* get console prz */
prz = ramoops_get_next_prz(&cxt->cprz, &cxt->console_read_cnt,
1, id, type, PSTORE_TYPE_CONSOLE, 0);
if (!prz_ok(prz))
+ /* get ftrace prz */
prz = ramoops_get_next_prz(&cxt->fprz, &cxt->ftrace_read_cnt,
1, id, type, PSTORE_TYPE_FTRACE, 0);
if (!prz_ok(prz))
+ /* get pmsg prz */
prz = ramoops_get_next_prz(&cxt->mprz, &cxt->pmsg_read_cnt,
1, id, type, PSTORE_TYPE_PMSG, 0);
if (!prz_ok(prz))
@@ -316,10 +323,10 @@ static int notrace ramoops_pstore_write_buf(enum pstore_type_id type,
if (part != 1)
return -ENOSPC;
- if (!cxt->przs)
+ if (!cxt->dprzs)
return -ENOSPC;
- prz = cxt->przs[cxt->dump_write_cnt];
+ prz = cxt->dprzs[cxt->dump_write_cnt];
hlen = ramoops_write_kmsg_hdr(prz, compressed);
if (size + hlen > prz->buffer_size)
@@ -359,7 +366,7 @@ static int ramoops_pstore_erase(enum pstore_type_id type, u64 id, int count,
case PSTORE_TYPE_DMESG:
if (id >= cxt->max_dump_cnt)
return -EINVAL;
- prz = cxt->przs[id];
+ prz = cxt->dprzs[id];
break;
case PSTORE_TYPE_CONSOLE:
prz = cxt->cprz;
@@ -454,28 +461,23 @@ static int ramoops_init_przs(struct device *dev, struct ramoops_context *cxt,
if (!cxt->max_dump_cnt)
return -ENOMEM;
- cxt->przs = kcalloc(cxt->max_dump_cnt, sizeof(*cxt->przs),
+ cxt->dprzs = kcalloc(cxt->max_dump_cnt, sizeof(*cxt->dprzs),
GFP_KERNEL);
- if (!cxt->przs) {
+ if (!cxt->dprzs) {
dev_err(dev, "failed to initialize a prz array for dumps\n");
goto fail_mem;
}
for (i = 0; i < cxt->max_dump_cnt; i++) {
- err = __ramoops_init_prz(dev, cxt, &cxt->przs[i], paddr,
+ err = __ramoops_init_prz(dev, cxt, &cxt->dprzs[i], paddr,
cxt->record_size, 0, false);
- if (err) {
- while (i > 0) {
- i--;
- persistent_ram_free(cxt->przs[i]);
- }
+ if (err)
goto fail_prz;
- }
}
return 0;
fail_prz:
- kfree(cxt->przs);
+ ramoops_free_przs(cxt->dprzs, i);
fail_mem:
cxt->max_dump_cnt = 0;
return err;
@@ -607,20 +609,24 @@ static int ramoops_probe(struct platform_device *pdev)
dump_mem_sz = cxt->size - cxt->console_size - cxt->ftrace_size
- cxt->pmsg_size;
+ /* init dump przs */
err = ramoops_init_przs(dev, cxt, &paddr, dump_mem_sz);
if (err)
goto fail_out;
+ /* init console prz */
err = ramoops_init_prz(dev, cxt, &cxt->cprz, &paddr,
cxt->console_size, 0);
if (err)
goto fail_init_cprz;
+ /* init ftrace prz */
err = ramoops_init_prz(dev, cxt, &cxt->fprz, &paddr, cxt->ftrace_size,
LINUX_VERSION_CODE);
if (err)
goto fail_init_fprz;
+ /* init pmsg przs */
err = ramoops_init_prz(dev, cxt, &cxt->mprz, &paddr, cxt->pmsg_size, 0);
if (err)
goto fail_init_mprz;
@@ -685,7 +691,7 @@ static int ramoops_probe(struct platform_device *pdev)
fail_init_fprz:
persistent_ram_free(cxt->cprz);
fail_init_cprz:
- ramoops_free_przs(cxt->przs, cxt->max_dump_cnt);
+ ramoops_free_przs(cxt->dprzs, cxt->max_dump_cnt);
cxt->max_dump_cnt = 0;
fail_out:
return err;
@@ -703,7 +709,7 @@ static int ramoops_remove(struct platform_device *pdev)
persistent_ram_free(cxt->mprz);
persistent_ram_free(cxt->fprz);
persistent_ram_free(cxt->cprz);
- ramoops_free_przs(cxt->przs, cxt->max_dump_cnt);
+ ramoops_free_przs(cxt->dprzs, cxt->max_dump_cnt);
cxt->max_dump_cnt = 0;
return 0;
--
2.9.3
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