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| author | Christoph Lameter <cl@linux-foundation.org> | 2009-10-03 19:48:22 +0900 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2009-10-03 19:48:22 +0900 |
| commit | fce22848a1e9887d92c2a975494b69149808750e (patch) | |
| tree | 3a89011108838ebb07b78e3a62ee3de4f3e593ae /fs/nfs | |
| parent | 4eb41d10c7ab419a1408bed2e63a9c0fdfa38844 (diff) | |
| download | linux-3.10-fce22848a1e9887d92c2a975494b69149808750e.tar.gz linux-3.10-fce22848a1e9887d92c2a975494b69149808750e.tar.bz2 linux-3.10-fce22848a1e9887d92c2a975494b69149808750e.zip | |
this_cpu: Use this_cpu operations for NFS statistics
Simplify NFS statistics and allow the use of optimized
arch instructions.
Acked-by: Tejun Heo <tj@kernel.org>
CC: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/iostat.h | 24 |
1 files changed, 3 insertions, 21 deletions
diff --git a/fs/nfs/iostat.h b/fs/nfs/iostat.h index ceda50aad73..46d779abafd 100644 --- a/fs/nfs/iostat.h +++ b/fs/nfs/iostat.h @@ -25,13 +25,7 @@ struct nfs_iostats { static inline void nfs_inc_server_stats(const struct nfs_server *server, enum nfs_stat_eventcounters stat) { - struct nfs_iostats *iostats; - int cpu; - - cpu = get_cpu(); - iostats = per_cpu_ptr(server->io_stats, cpu); - iostats->events[stat]++; - put_cpu(); + this_cpu_inc(server->io_stats->events[stat]); } static inline void nfs_inc_stats(const struct inode *inode, @@ -44,13 +38,7 @@ static inline void nfs_add_server_stats(const struct nfs_server *server, enum nfs_stat_bytecounters stat, unsigned long addend) { - struct nfs_iostats *iostats; - int cpu; - - cpu = get_cpu(); - iostats = per_cpu_ptr(server->io_stats, cpu); - iostats->bytes[stat] += addend; - put_cpu(); + this_cpu_add(server->io_stats->bytes[stat], addend); } static inline void nfs_add_stats(const struct inode *inode, @@ -65,13 +53,7 @@ static inline void nfs_add_fscache_stats(struct inode *inode, enum nfs_stat_fscachecounters stat, unsigned long addend) { - struct nfs_iostats *iostats; - int cpu; - - cpu = get_cpu(); - iostats = per_cpu_ptr(NFS_SERVER(inode)->io_stats, cpu); - iostats->fscache[stat] += addend; - put_cpu(); + this_cpu_add(NFS_SERVER(inode)->io_stats->fscache[stat], addend); } #endif |