user/sven/linux.git/include/linux/pstore.h, branch v3.0.46Linux Kernel
https://git.stealer.net/cgit.cgi/user/sven/linux.git/atom?h=v3.0.462011-05-16T18:05:00Zpstore: fix pstore filesystem mount/remount issue2011-05-16T18:05:00ZChen Gonggong.chen@linux.intel.com2011-05-16T18:00:27Zurn:sha1:06cf91b4b4aafa50ee0a94c81d2c6922a18af242
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>
pstore: fix one type of return value in pstore2011-05-16T18:04:51ZChen Gonggong.chen@linux.intel.com2011-05-16T17:58:57Zurn:sha1:8d38d74b648513dd8ed8bd2b67d899208ef4e09e
the return type of function _read_ in pstore is size_t,
but in the callback function of _read_, the logic doesn't
consider it too much, which means if negative value (assuming
error here) is returned, it will be converted to positive because
of type casting. ssize_t is enough for this function.
Signed-off-by: Chen Gong <gong.chen@linux.intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
pstore: new filesystem interface to platform persistent storage2010-12-28T22:25:21ZTony Lucktony.luck@intel.com2010-12-28T22:25:21Zurn:sha1:ca01d6dd2d7a2652000307520777538740efc286
Some platforms have a small amount of non-volatile storage that
can be used to store information useful to diagnose the cause of
a system crash. This is the generic part of a file system interface
that presents information from the crash as a series of files in
/dev/pstore. Once the information has been seen, the underlying
storage is freed by deleting the files.
Signed-off-by: Tony Luck <tony.luck@intel.com>