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| author | Nathan Scott <nathans@sgi.com> | 2005-11-02 01:43:58 +0100 |
|---|---|---|
| committer | Nathan Scott <nathans@sgi.com> | 2005-11-02 01:43:58 +0100 |
| commit | 4aeb664c2561c0bae18d7a3a141d7d2acf126da1 (patch) | |
| tree | 832e72237a69b76bf4c965d7383cdbb9fc3f8939 /fs/xfs/linux-2.6/xfs_lrw.c | |
| parent | [XFS] Remove a null CELL macro and its one caller, not useful to anyone. (diff) | |
| download | linux-4aeb664c2561c0bae18d7a3a141d7d2acf126da1.tar.xz linux-4aeb664c2561c0bae18d7a3a141d7d2acf126da1.zip | |
[XFS] Improve buffered read throughput by removing unnecessary timer calls
that showed in ´kernel profiles.
SGI-PV: 925163
SGI-Modid: xfs-linux:xfs-kern:23861a
Signed-off-by: Nathan Scott <nathans@sgi.com>
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_lrw.c')
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_lrw.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/fs/xfs/linux-2.6/xfs_lrw.c b/fs/xfs/linux-2.6/xfs_lrw.c index 3b5fabe8dae9..c04f0c063c58 100644 --- a/fs/xfs/linux-2.6/xfs_lrw.c +++ b/fs/xfs/linux-2.6/xfs_lrw.c @@ -302,7 +302,7 @@ xfs_read( xfs_iunlock(ip, XFS_IOLOCK_SHARED); if (likely(!(ioflags & IO_INVIS))) - xfs_ichgtime(ip, XFS_ICHGTIME_ACC); + xfs_ichgtime_fast(ip, inode, XFS_ICHGTIME_ACC); unlock_isem: if (unlikely(ioflags & IO_ISDIRECT)) @@ -367,7 +367,7 @@ xfs_sendfile( XFS_STATS_ADD(xs_read_bytes, ret); if (likely(!(ioflags & IO_INVIS))) - xfs_ichgtime(ip, XFS_ICHGTIME_ACC); + xfs_ichgtime_fast(ip, LINVFS_GET_IP(vp), XFS_ICHGTIME_ACC); return ret; } @@ -732,15 +732,10 @@ start: } } - /* - * On Linux, generic_file_write updates the times even if - * no data is copied in so long as the write had a size. - * - * We must update xfs' times since revalidate will overcopy xfs. - */ - if (!(ioflags & IO_INVIS)) { - xfs_ichgtime(xip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG); + if (likely(!(ioflags & IO_INVIS))) { inode_update_time(inode, 1); + xfs_ichgtime_fast(xip, inode, + XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG); } /* |