From: Steven Whitehouse Date: Tue, 30 Nov 2010 15:49:31 +0000 (+0000) Subject: GFS2: Merge glock state fields into a bitfield X-Git-Tag: v2.6.38-rc1~493^2~2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=47a25380e37f44db7202093ca92e4af569c34f55;p=pandora-kernel.git GFS2: Merge glock state fields into a bitfield We can only merge the fields into a bitfield if the locking rules for them are the same. In this case gl_spin covers all of the fields (write side) but a couple of them are used with GLF_LOCK as the read side lock, which should be ok since we know that the field in question won't be changing at the time. The gl_req setting has to be done earlier (in glock.c) in order to place it under gl_spin. The gl_reply setting also has to be brought under gl_spin in order to comply with the new rules. This saves 4*sizeof(unsigned int) per glock. Signed-off-by: Steven Whitehouse Cc: Bob Peterson --- Reading git-diff-tree failed