[PATCH AUTOSEL 3.18 04/19] gfs2: Special-case rindex for gfs2_grow

From: Andreas Gruenbacher [ Upstream commit 776125785a87ff05d49938bd5b9f336f2a05bff6 ] To speed up the common case of appending to a file, gfs2_write_alloc_required presumes that writing beyond the end of a file will always require additional blocks to be allocated. This assumption is

[PATCH AUTOSEL 3.18 04/19] gfs2: Special-case rindex for gfs2_grow

From: Andreas Gruenbacher [ Upstream commit 776125785a87ff05d49938bd5b9f336f2a05bff6 ] To speed up the common case of appending to a file, gfs2_write_alloc_required presumes that writing beyond the end of a file will always require additional blocks to be allocated. This assumption is