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authorBob Peterson <rpeterso@redhat.com>2020-10-15 19:07:26 +0300
committerAndreas Gruenbacher <agruenba@redhat.com>2020-10-21 00:16:22 +0300
commit23cfb0c3d845ee0cb45732cd0ac2460115cb7c9c (patch)
tree6a77d310d4edc4c8654a85fb5442dd6657d47579 /fs/gfs2/incore.h
parent2ffed5290b3bff7562d29fd06621be4705704242 (diff)
downloadlinux-23cfb0c3d845ee0cb45732cd0ac2460115cb7c9c.tar.xz
gfs2: Eliminate gl_vm
The gfs2_glock structure has a gl_vm member, introduced in commit 7005c3e4ae428 ("GFS2: Use range based functions for rgrp sync/invalidation"), which stores the location of resource groups within their address space. This structure is in a union with iopen glock specific fields. It was introduced because at unmount time, the resource group objects were destroyed before flushing out any pending resource group glock work, and flushing out such work could require flushing / truncating the address space. Since commit b3422cacdd7e6 ("gfs2: Rework how rgrp buffer_heads are managed"), any pending resource group glock work is flushed out before destroying the resource group objects. So the resource group objects will now always exist in rgrp_go_sync and rgrp_go_inval, and we now simply compute the gl_vm values where needed instead of caching them. This also eliminates the union. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Diffstat (limited to 'fs/gfs2/incore.h')
-rw-r--r--fs/gfs2/incore.h15
1 files changed, 4 insertions, 11 deletions
diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index 346693faf049..c3ca9b8382ec 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -377,17 +377,10 @@ struct gfs2_glock {
atomic_t gl_ail_count;
atomic_t gl_revokes;
struct delayed_work gl_work;
- union {
- /* For iopen glocks only */
- struct {
- struct delayed_work gl_delete;
- u64 gl_no_formal_ino;
- };
- /* For rgrp glocks only */
- struct {
- loff_t start;
- loff_t end;
- } gl_vm;
+ /* For iopen glocks only */
+ struct {
+ struct delayed_work gl_delete;
+ u64 gl_no_formal_ino;
};
struct rcu_head gl_rcu;
struct rhash_head gl_node;