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Similar to the pstore_info read() callback, there were too many arguments.
This switches to the new struct pstore_record pointer instead. This adds
"reason" and "part" to the record structure as well.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The argument list for the pstore_read() interface is unwieldy. This changes
passes the new struct pstore_record instead. The erst backend was already
doing something similar internally.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Instead of the long list of arguments, just pass the new record struct.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Add support for writing console messages to pstore.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Documentation-added-by: Juergen Borleis <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The read/mkfile pair pass the same arguments and should be cleared
between calls. Move to a structure and wipe it after every loop.
Signed-off-by: Kees Cook <keescook@chromium.org>
[p.zabel@pengutronix.de: ported to Barebox from Linux commit 9abdcccc3d5f]
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Move mutex related defines to its original place.
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Move spinlock related definitions to its original place.
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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pstore is a persistent storage filesystem used for RAMOOPS. It is used
to store console logs, panics, ftrace and other information in case of a
crash/panic/oops/reboot.
pstore is implemented for barebox as a read-only filesystem at the
moment. It may be extended later on. The idea is to provide a way to
extract essential data from the last running kernel.
Most of the code is copied from the kernel. However this is only a
lightweight implementation without real write support yet.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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