> -----Original Message----- > From: James Bottomley [mailto:James.Bottomley@xxxxxxxxxxxxxxxxxxxxx] > Sent: Thursday, April 30, 2015 7:08 AM > To: linux-efi@xxxxxxxxxxxxxxx > Cc: Kweh, Hock Leong; LKML; Andy Lutomirski; Greg Kroah-Hartman; Peter > Jones > Subject: [RFC 0/3] Add capsule update using error on close semantics > > This is a straw man implementation. The three patches firstly thread the > needed ->flush() file op through sysfs and kernfs. The next one extracts > transaction buffer handling from firmware_class.c and makes it generic in a > lib helper and the third patch adds a bare bones capsule update (I suspect > the latter needs more work, since it doesn't implement the scatterlist). > > James Bottomley (3): > sysfs,kernfs: add flush operation > firmware_class: split out transaction helpers > efi: add capsule update capability via sysfs > > drivers/base/firmware_class.c | 117 ++++--------------------------- > drivers/firmware/efi/Makefile | 2 +- > drivers/firmware/efi/capsule.c | 78 +++++++++++++++++++++ > drivers/firmware/efi/capsule.h | 2 + > drivers/firmware/efi/efi.c | 8 +++ > fs/kernfs/file.c | 16 +++++ > fs/sysfs/file.c | 16 +++++ > include/linux/kernfs.h | 2 + > include/linux/sysfs.h | 2 + > include/linux/transaction_helper.h | 26 +++++++ > lib/Makefile | 2 +- > lib/transaction_helper.c | 137 > +++++++++++++++++++++++++++++++++++++ > 12 files changed, 304 insertions(+), 104 deletions(-) create mode 100644 > drivers/firmware/efi/capsule.c create mode 100644 > drivers/firmware/efi/capsule.h create mode 100644 > include/linux/transaction_helper.h > create mode 100644 lib/transaction_helper.c > > James Hi James, I like the sysfs enhancement but require Greg to buy in the idea. For the efi capsule part, Matt has implemented some APIs where you could get the patch at http://permalink.gmane.org/gmane.linux.kernel.efi/4837. So, I would think that leveraging the APIs that Matt has created is a better choice. Thanks & Regards, Wilson ��.n��������+%������w��{.n�����{����* jg��� �����ݢj����G���� ���j:+v���w�m������w�������h�����٥
