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linux-next/fs/pstore
Anton Vorontsov 060287b8c4 pstore: Add persistent function tracing
With this support kernel can save function call chain log into a
persistent ram buffer that can be decoded and dumped after reboot
through pstore filesystem. It can be used to determine what function
was last called before a reset or panic.

We store the log in a binary format and then decode it at read time.

p.s.
Mostly the code comes from trace_persistent.c driver found in the
Android git tree, written by Colin Cross <ccross@android.com>
(according to sign-off history). I reworked the driver a little bit,
and ported it to pstore.

Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-17 10:05:52 -07:00
..
ftrace.c pstore: Add persistent function tracing 2012-07-17 10:05:52 -07:00
inode.c pstore: Add persistent function tracing 2012-07-17 10:05:52 -07:00
internal.h pstore: Add persistent function tracing 2012-07-17 10:05:52 -07:00
Kconfig pstore: Add persistent function tracing 2012-07-17 10:05:52 -07:00
Makefile pstore: Add persistent function tracing 2012-07-17 10:05:52 -07:00
platform.c pstore: Add persistent function tracing 2012-07-17 10:05:52 -07:00
ram_core.c pstore/ram_core: Get rid of prz->ecc enable/disable flag 2012-07-17 09:46:52 -07:00
ram.c pstore/ram: Make ECC size configurable 2012-07-17 09:46:52 -07:00