Messages in this thread | | | Date | Sat, 7 Jun 2008 21:27:54 -0700 | From | Greg KH <> | Subject | Re: [PATCH 5 of 7] block: Block/request layer data integrity support |
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On Sat, Jun 07, 2008 at 12:55:38AM -0400, Martin K. Petersen wrote: > +5.1 NORMAL FILESYSTEM > + > + The normal filesystem is unaware that the underlying block device > + is capable of sending/receiving integrity metadata. The IMD will > + be automatically generated by the block layer at submit_bio() time > + in case of a WRITE. A READ request will cause the I/O integrity > + to be verified upon completion. > + > + IMD generation and verification can be toggled using the > + > + /sys/class/block/<bdev>/integrity/write_generate > + > + and > + > + /sys/class/block/<bdev>/integrity/read_verify > + > + flags. > +
All of the sysfs interfaces should be documented in Documentation/ABI/ not here, otherwise they will be tough to find and figure out how to use :)
thanks,
greg k-h
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