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authorChen Gong <gong.chen@linux.intel.com>2011-05-16 11:00:27 -0700
committerTony Luck <tony.luck@intel.com>2011-05-16 11:05:00 -0700
commit06cf91b4b4aafa50ee0a94c81d2c6922a18af242 (patch)
treef45fe916103b323a714c8958048b8adab1f944b1 /fs/pstore
parent8d38d74b648513dd8ed8bd2b67d899208ef4e09e (diff)
downloadop-kernel-dev-06cf91b4b4aafa50ee0a94c81d2c6922a18af242.zip
op-kernel-dev-06cf91b4b4aafa50ee0a94c81d2c6922a18af242.tar.gz
pstore: fix pstore filesystem mount/remount issue
Currently after mount/remount operation on pstore filesystem, the content on pstore will be lost. It is because current ERST implementation doesn't support multi-user usage, which moves internal pointer to the end after accessing it. Adding multi-user support for pstore usage. Signed-off-by: Chen Gong <gong.chen@linux.intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'fs/pstore')
-rw-r--r--fs/pstore/platform.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c
index 912403c..f2c3ff2 100644
--- a/fs/pstore/platform.c
+++ b/fs/pstore/platform.c
@@ -156,17 +156,23 @@ void pstore_get_records(void)
u64 id;
enum pstore_type_id type;
struct timespec time;
- int failed = 0;
+ int failed = 0, rc;
if (!psi)
return;
mutex_lock(&psinfo->buf_mutex);
+ rc = psi->open(psi);
+ if (rc)
+ goto out;
+
while ((size = psi->read(&id, &type, &time)) > 0) {
if (pstore_mkfile(type, psi->name, id, psi->buf, (size_t)size,
time, psi->erase))
failed++;
}
+ psi->close(psi);
+out:
mutex_unlock(&psinfo->buf_mutex);
if (failed)
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