From f057f6cdf64175db1151b1f5d110e29904f119a1 Mon Sep 17 00:00:00 2001 From: Steven Whitehouse Date: Mon, 12 Jan 2009 10:43:39 +0000 Subject: GFS2: Merge lock_dlm module into GFS2 This is the big patch that I've been working on for some time now. There are many reasons for wanting to make this change such as: o Reducing overhead by eliminating duplicated fields between structures o Simplifcation of the code (reduces the code size by a fair bit) o The locking interface is now the DLM interface itself as proposed some time ago. o Fewer lookups of glocks when processing replies from the DLM o Fewer memory allocations/deallocations for each glock o Scope to do further optimisations in the future (but this patch is more than big enough for now!) Please note that (a) this patch relates to the lock_dlm module and not the DLM itself, that is still a separate module; and (b) that we retain the ability to build GFS2 as a standalone single node filesystem with out requiring the DLM. This patch needs a lot of testing, hence my keeping it I restarted my -git tree after the last merge window. That way, this has the maximum exposure before its merged. This is (modulo a few minor bug fixes) the same patch that I've been posting on and off the the last three months and its passed a number of different tests so far. Signed-off-by: Steven Whitehouse --- fs/gfs2/meta_io.c | 1 - 1 file changed, 1 deletion(-) (limited to 'fs/gfs2/meta_io.c') diff --git a/fs/gfs2/meta_io.c b/fs/gfs2/meta_io.c index 09853620c951..870d65ae7ae2 100644 --- a/fs/gfs2/meta_io.c +++ b/fs/gfs2/meta_io.c @@ -19,7 +19,6 @@ #include #include #include -#include #include "gfs2.h" #include "incore.h" -- cgit v1.2.2 From 6bac243f0793499782267342eba852a8a6cc7ac4 Mon Sep 17 00:00:00 2001 From: Steven Whitehouse Date: Mon, 9 Mar 2009 09:03:51 +0000 Subject: GFS2: Clean up of glops.c This cleans up a number of bits of code mostly based in glops.c. A couple of simple functions have been merged into the callers to make it more obvious what is going on, the mysterious raising of i_writecount around the truncate_inode_pages() call has been removed. The meta_go_* operations have been renamed rgrp_go_* since that is the only lock type that they are used with. The unused argument of gfs2_read_sb has been removed. Also a bug has been fixed where a check for the rindex inode was in the wrong callback. More comments are added, and the debugging code is improved too. Signed-off-by: Steven Whitehouse --- fs/gfs2/meta_io.c | 21 --------------------- 1 file changed, 21 deletions(-) (limited to 'fs/gfs2/meta_io.c') diff --git a/fs/gfs2/meta_io.c b/fs/gfs2/meta_io.c index 870d65ae7ae2..8d6f13256b26 100644 --- a/fs/gfs2/meta_io.c +++ b/fs/gfs2/meta_io.c @@ -88,27 +88,6 @@ void gfs2_aspace_put(struct inode *aspace) iput(aspace); } -/** - * gfs2_meta_inval - Invalidate all buffers associated with a glock - * @gl: the glock - * - */ - -void gfs2_meta_inval(struct gfs2_glock *gl) -{ - struct gfs2_sbd *sdp = gl->gl_sbd; - struct inode *aspace = gl->gl_aspace; - struct address_space *mapping = gl->gl_aspace->i_mapping; - - gfs2_assert_withdraw(sdp, !atomic_read(&gl->gl_ail_count)); - - atomic_inc(&aspace->i_writecount); - truncate_inode_pages(mapping, 0); - atomic_dec(&aspace->i_writecount); - - gfs2_assert_withdraw(sdp, !mapping->nrpages); -} - /** * gfs2_meta_sync - Sync all buffers associated with a glock * @gl: The glock -- cgit v1.2.2