Attachment 149471 Details for Bug 205720 – linux-2.6.9-diskdump-parmdesc.patch

[patch] linux-2.6.9-diskdump-parmdesc.patch

linux-2.6.9-diskdump-parmdesc.patch (text/plain), 2.10 KB, created by Nobuhiro Tachino on 2007-03-07 17:25:09 UTC

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Creator: Nobuhiro Tachino

Created: 2007-03-07 17:25:09 UTC

Size: 2.10 KB

patch

obsolete

>diff -Npur linux-2.6.9.org/drivers/block/diskdump.c linux-2.6.9/drivers/block/diskdump.c
>--- linux-2.6.9.org/drivers/block/diskdump.c	2007-03-07 11:38:33.000000000 -0500
>+++ linux-2.6.9/drivers/block/diskdump.c	2007-03-07 11:39:54.000000000 -0500
>@@ -74,9 +74,33 @@ static int compress = 0;
> module_param_named(fallback_on_err, fallback_on_err, bool, S_IRUGO|S_IWUSR);
> module_param_named(allow_risky_dumps, allow_risky_dumps, bool, S_IRUGO|S_IWUSR);
> module_param_named(block_order, block_order, uint, S_IRUGO|S_IWUSR);
>+MODULE_PARM_DESC(block_order,
>+		"Specifies the dump-time I/O block size. Default value is 2, "
>+		"which sets the I/O block size equal to \"page-size << 2\", or "
>+		"16 kbytes on an i386 machine. Larger values may make for "
>+		"better performance, but occupies more module memory.");
> module_param_named(sample_rate, sample_rate, int, S_IRUGO|S_IWUSR);
>+MODULE_PARM_DESC(sample_rate,
>+		"Determine how many blocks in the dump partition are verified "
>+		"before actual memory dumping begins. Default value is 8, "
>+		"which means one of every \"1<<8\" (256) blocks are verified. "
>+		"Specifying zero means all blocks in the partition are "
>+		"verified, and a minus value disables verification.");
> module_param_named(dump_level, dump_level, int, S_IRUGO|S_IWUSR);
>+MODULE_PARM_DESC(dump_level,
>+		"A memory collection level that specifies which memory "
>+		"pages will be dumped. Default value of 0 dumps all pages "
>+		"of physical RAM into the vmcore file. To avoid excessively "
>+		"large vmcore files, page cache pages, zero-filled pages, "
>+		"free pages, and user application pages may be eliminated "
>+		"from the file. Please refer README in diskdumputils package "
>+		"for more detail of each value");
> module_param_named(compress, compress, int, S_IRUGO);
>+MODULE_PARM_DESC(compress,
>+		"Specify whether compression for dump data is enabled or not. "
>+		"The default value is 0, which means that memory pages will be "
>+		"dumped without compression. If the value is 1, memory pages "
>+		"will be compressed using the deflation algorithm, GZIP.");
> 
> static unsigned long timestamp_1sec;
> static uint32_t module_crc;

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Attachments on bug 205720: 149471