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linux-next/include
Richard Purdie 388bbb09b9 [MTD] Add mtd panic_write function pointer
MTDs are well suited for logging critical data and the mtdoops driver
allows kernel panics/oops to be written to flash in a blackbox flight
recorder fashion allowing better debugging and analysis of crashes.

Any kernel oops in user context can be easily handled since the kernel
continues as normal and any queued mtd writes are scheduled. Any kernel
oops in interrupt context results in a panic and the delayed writes will
not be scheduled however. The existing mtd->write function cannot be
called in interrupt context so these messages can never be written to
flash.

This patch adds a panic_write function pointer that drivers can
optionally implement which can be called in interrupt context. It is
only intended to be called when its known the kernel is about to panic
and we need to write to succeed. Since the kernel is not going to be
running for much longer, this function can break locks and delay to
ensure the write succeeds (but not sleep).

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-02-07 10:30:48 +00:00
..
acpi ACPI: Separate invocations of _GTS and _BFS from _PTS and _WAK 2008-02-01 18:30:56 -05:00
asm-alpha [NET]: Introducing socket mark socket option. 2008-01-31 19:27:19 -08:00
asm-arm USB: at91_udc uses generic GPIO calls; minor cleanup 2008-02-01 14:35:01 -08:00
asm-avr32 [NET]: Introducing socket mark socket option. 2008-01-31 19:27:19 -08:00
asm-blackfin [NET]: Introducing socket mark socket option. 2008-01-31 19:27:19 -08:00
asm-cris [NET]: Introducing socket mark socket option. 2008-01-31 19:27:19 -08:00
asm-frv [NET]: Introducing socket mark socket option. 2008-01-31 19:27:19 -08:00
asm-generic asm-generic/tlb.h: build fix 2008-01-31 22:05:48 +01:00
asm-h8300 [NET]: Introducing socket mark socket option. 2008-01-31 19:27:19 -08:00
asm-ia64 [NET]: Introducing socket mark socket option. 2008-01-31 19:27:19 -08:00
asm-m32r [NET]: Introducing socket mark socket option. 2008-01-31 19:27:19 -08:00
asm-m68k [NET]: Introducing socket mark socket option. 2008-01-31 19:27:19 -08:00
asm-m68knommu m68knommu: remove unused CONFIG_DISKtel symbol 2008-02-01 21:00:01 +11:00
asm-mips au1xxx-ide: use hwif->dev 2008-02-01 23:09:31 +01:00
asm-parisc [NET]: Introducing socket mark socket option. 2008-01-31 19:27:19 -08:00
asm-powerpc [NET]: Introducing socket mark socket option. 2008-01-31 19:27:19 -08:00
asm-ppc [PPC] Remove 85xx from arch/ppc 2008-01-28 08:33:10 -06:00
asm-s390 [NET]: Introducing socket mark socket option. 2008-01-31 19:27:19 -08:00
asm-sh [NET]: Introducing socket mark socket option. 2008-01-31 19:27:19 -08:00
asm-sparc [NET]: Introducing socket mark socket option. 2008-01-31 19:27:19 -08:00
asm-sparc64 [NET]: Introducing socket mark socket option. 2008-01-31 19:27:19 -08:00
asm-um git-x86: unbreak UML 2008-01-30 13:32:38 +01:00
asm-v850 [NET]: Introducing socket mark socket option. 2008-01-31 19:27:19 -08:00
asm-x86 Merge git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86 2008-02-02 08:27:50 +11:00
asm-xtensa [NET]: Introducing socket mark socket option. 2008-01-31 19:27:19 -08:00
crypto [CRYPTO] api: Include sched.h for cond_resched in scatterwalk.h 2008-01-11 08:16:59 +11:00
keys
linux [MTD] Add mtd panic_write function pointer 2008-02-07 10:30:48 +00:00
math-emu
media i2c: Constify client address data 2008-01-27 18:14:46 +01:00
mtd Merge git://git.infradead.org/~dedekind/ubi-2.6 2008-02-03 22:07:40 +11:00
net [NETNS]: Lookup in FIB semantic hashes taking into account the namespace. 2008-01-31 19:28:41 -08:00
pcmcia
rdma RDMA/cma: add support for rdma_migrate_id() 2008-01-25 14:15:32 -08:00
rxrpc
scsi [SCSI] scsi_debug: add XDWRITEREAD_10 support 2008-01-30 13:14:25 -06:00
sound [ALSA] version 1.0.16rc2 2008-01-31 17:40:18 +01:00
video
xen x86: page.h: make pte_t a union to always include 2008-01-30 13:32:57 +01:00
Kbuild