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authorAruna Balakrishnaiah <aruna@linux.vnet.ibm.com>2013-06-27 14:02:56 +0530
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-07-01 18:10:48 +1000
commit6bbbca735936e15b9431882eceddcf6dff76e03c (patch)
tree480bb28754a7e47fe341530d98299e988b835224 /fs/pstore
parent74251fe21bfa9310ddba9e0436d1fcf389e602ee (diff)
pstore: Pass header size in the pstore write callback
Header size is needed to distinguish between header and the dump data. Incorporate the addition of new argument (hsize) in the pstore write callback. Signed-off-by: Aruna Balakrishnaiah <aruna@linux.vnet.ibm.com> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'fs/pstore')
-rw-r--r--fs/pstore/platform.c10
-rw-r--r--fs/pstore/ram.c3
2 files changed, 8 insertions, 5 deletions
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c
index 86d1038b5a1..4637ec4169c 100644
--- a/fs/pstore/platform.c
+++ b/fs/pstore/platform.c
@@ -159,7 +159,7 @@ static void pstore_dump(struct kmsg_dumper *dumper,
break;
ret = psinfo->write(PSTORE_TYPE_DMESG, reason, &id, part,
- oopscount, hsize + len, psinfo);
+ oopscount, hsize, hsize + len, psinfo);
if (ret == 0 && reason == KMSG_DUMP_OOPS && pstore_is_mounted())
pstore_new_entry = 1;
@@ -196,7 +196,7 @@ static void pstore_console_write(struct console *con, const char *s, unsigned c)
spin_lock_irqsave(&psinfo->buf_lock, flags);
}
memcpy(psinfo->buf, s, c);
- psinfo->write(PSTORE_TYPE_CONSOLE, 0, &id, 0, 0, c, psinfo);
+ psinfo->write(PSTORE_TYPE_CONSOLE, 0, &id, 0, 0, 0, c, psinfo);
spin_unlock_irqrestore(&psinfo->buf_lock, flags);
s += c;
c = e - s;
@@ -221,9 +221,11 @@ static void pstore_register_console(void) {}
static int pstore_write_compat(enum pstore_type_id type,
enum kmsg_dump_reason reason,
u64 *id, unsigned int part, int count,
- size_t size, struct pstore_info *psi)
+ size_t hsize, size_t size,
+ struct pstore_info *psi)
{
- return psi->write_buf(type, reason, id, part, psinfo->buf, size, psi);
+ return psi->write_buf(type, reason, id, part, psinfo->buf, hsize,
+ size, psi);
}
/*
diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c
index 1376e5a8f0d..c6bb77ca35b 100644
--- a/fs/pstore/ram.c
+++ b/fs/pstore/ram.c
@@ -195,7 +195,8 @@ static size_t ramoops_write_kmsg_hdr(struct persistent_ram_zone *prz)
static int notrace ramoops_pstore_write_buf(enum pstore_type_id type,
enum kmsg_dump_reason reason,
u64 *id, unsigned int part,
- const char *buf, size_t size,
+ const char *buf,
+ size_t hsize, size_t size,
struct pstore_info *psi)
{
struct ramoops_context *cxt = psi->data;