Re: [Cluster-devel] [PATCH 8/8] Revert "ext4: fix wrong gfp type under transaction"

On Thu 19-01-17 10:44:05, Michal Hocko wrote: > On Thu 19-01-17 10:22:36, Jan Kara wrote: > > On Thu 19-01-17 09:39:56, Michal Hocko wrote: > > > On Tue 17-01-17 18:29:25, Jan Kara wrote: > > > > On Tue 17-01-17 17:16:19, Michal Hocko wrote: > > > > > > > But before going to play with that I am

[Cluster-devel] [GFS2 PATCH 0/3] GFS2: Reduce contention on gfs2_log_lock

Simultaneous writes from a single node were very slow due to contention for the gfs2_log_lock. This lock is used to protect the journaled data and metadata buffer lists, and the list headers in the superblock that hold pointers to them. The log_lock is used whenever a metadata block is added to a

[Cluster-devel] [GFS2 PATCH 1/3] GFS2: Switch tr_touched to flag in transaction

This patch eliminates the int variable tr_touched in favor of a new flag in the transaction. This is a step toward reducing contention on the gfs2_log_lock spin_lock. Signed-off-by: Bob Peterson --- fs/gfs2/incore.h | 10 +++--- fs/gfs2/log.c | 6 +++---

[Cluster-devel] [GFS2 PATCH 3/3] GFS2: Reduce contention on gfs2_log_lock

This patch reworks some of the log locks to provide less contention. Signed-off-by: Bob Peterson --- fs/gfs2/aops.c| 23 ++- fs/gfs2/glops.c | 4 ++-- fs/gfs2/log.c | 6 ++--- fs/gfs2/lops.c| 3 ++- fs/gfs2/meta_io.c | 11 +

[Cluster-devel] [GFS2 PATCH 2/3] GFS2: Inline function meta_lo_add

This patch simply combines function meta_lo_add with its only caller, trans_add_meta. This makes the code easier to read and will make it easier to reduce contention on gfs2_log_lock. Signed-off-by: Bob Peterson --- fs/gfs2/trans.c | 49