Boaz Harrosh 5e383255da pnfs-obj: Must return layout on IO error ... commit fe0fe83585 upstream. As mandated by the standard. In case of an IO error, a pNFS objects layout driver must return it's layout. This is because all device errors are reported to the server as part of the layout return buffer. This is implemented the same way PNFS_LAYOUTRET_ON_SETATTR is done, through a bit flag on the pnfs_layoutdriver_type->flags member. The flag is set by the layout driver that wants a layout_return preformed at pnfs_ld_{write,read}_done in case of an error. (Though I have not defined a wrapper like pnfs_ld_layoutret_on_setattr because this code is never called outside of pnfs.c and pnfs IO paths) Without this patch 3.[0-2] Kernels leak memory and have an annoying WARN_ON after every IO error utilizing the pnfs-obj driver. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>		2012-01-25 17:25:03 -08:00
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Kbuild	pnfs-obj: decode layout, alloc/free lseg	2011-05-29 20:53:06 +03:00
objio_osd.c	pnfs-obj: Must return layout on IO error	2012-01-25 17:25:03 -08:00
objlayout.c	pnfs-obj: pNFS errors are communicated on iodata->pnfs_error	2012-01-25 17:25:02 -08:00
objlayout.h	pnfs-obj: objlayout_encode_layoutcommit implementation	2011-05-29 20:55:00 +03:00
pnfs_osd_xdr_cli.c	pnfs-obj: Fix the comp_index != 0 case	2011-08-29 13:29:07 -07:00