Re: [PATCH] Save PG_head_mask in VMCOREINFO

2014-04-21 Thread Baoquan He
On 04/11/14 at 05:50pm, Petr Tesarik wrote: > To allow filtering of huge pages, makedumpfile must be able to > identify them in the dump. This can be done by checking the > appropriate page flag, so communicate its value to makedumpfile > through the VMCOREINFO interface. > > There's only one smal

Re: [PATCH] Save PG_head_mask in VMCOREINFO

2014-04-15 Thread Petr Tesarik
On Fri, 11 Apr 2014 17:50:39 +0200 Petr Tesarik wrote: > To allow filtering of huge pages, makedumpfile must be able to > identify them in the dump. This can be done by checking the > appropriate page flag, so communicate its value to makedumpfile > through the VMCOREINFO interface. > > There's

[PATCH] Save PG_head_mask in VMCOREINFO

2014-04-11 Thread Petr Tesarik
To allow filtering of huge pages, makedumpfile must be able to identify them in the dump. This can be done by checking the appropriate page flag, so communicate its value to makedumpfile through the VMCOREINFO interface. There's only one small catch. Depending on how many page flags are available