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Thomas Petazzoni 2d6ffcca62 inflate: refactor inflate malloc code ... Inflate requires some dynamic memory allocation very early in the boot process and this is provided with a set of four functions: malloc/free/gzip_mark/gzip_release. The old inflate code used a mark/release strategy rather than implement free. This new version instead keeps a count on the number of outstanding allocations and when it hits zero, it resets the malloc arena. This allows removing all the mark and release implementations and unifying all the malloc/free implementations. The architecture-dependent code must define two addresses: - free_mem_ptr, the address of the beginning of the area in which allocations should be made - free_mem_end_ptr, the address of the end of the area in which allocations should be made. If set to 0, then no check is made on the number of allocations, it just grows as much as needed The architecture-dependent code can also provide an arch_decomp_wdog() function call. This function will be called several times during the decompression process, and allow to notify the watchdog that the system is still running. If an architecture provides such a call, then it must define ARCH_HAS_DECOMP_WDOG so that the generic inflate code calls arch_decomp_wdog(). Work initially done by Matt Mackall, updated to a recent version of the kernel and improved by me. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Matt Mackall <mpm@selenic.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Mikael Starvik <mikael.starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: David Howells <dhowells@redhat.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Andi Kleen <andi@firstfloor.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		17 years ago
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alpha	inflate: refactor inflate malloc code	17 years ago
arm	inflate: refactor inflate malloc code	17 years ago
avr32	Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	17 years ago
blackfin	Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	17 years ago
cris	inflate: refactor inflate malloc code	17 years ago
frv	remove include/linux/pm_legacy.h	17 years ago
h8300	inflate: refactor inflate malloc code	17 years ago
ia64	flag parameters: pipe	17 years ago
m32r	inflate: refactor inflate malloc code	17 years ago
m68k	PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures	17 years ago
m68knommu	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu	17 years ago
mips	Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	17 years ago
mn10300	inflate: refactor inflate malloc code	17 years ago
parisc	flag parameters: pipe	17 years ago
powerpc	introduce HAVE_EFFICIENT_UNALIGNED_ACCESS Kconfig symbol	17 years ago
s390	s390: use virtio_console for KVM on s390	17 years ago
sh	inflate: refactor inflate malloc code	17 years ago
sparc	flag parameters: pipe	17 years ago
sparc64	Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	17 years ago
um	Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	17 years ago
x86	inflate: refactor inflate malloc code	17 years ago
xtensa	flag parameters: pipe	17 years ago
.gitignore	…
Kconfig	introduce HAVE_EFFICIENT_UNALIGNED_ACCESS Kconfig symbol	17 years ago