diff options
| author | Bob Peterson <rpeterso@redhat.com> | 2007-12-12 02:29:17 +0100 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2008-01-25 09:14:33 +0100 |
| commit | 15c7cee7995a9013f1b2f31a15b70e1d2e8ae501 (patch) | |
| tree | 22646442ffd942d77fc34f168d270e7bd2668643 /fs/gfs2 | |
| parent | [GFS2] Only fetch the dinode once in block_map (diff) | |
| download | linux-15c7cee7995a9013f1b2f31a15b70e1d2e8ae501.tar.xz linux-15c7cee7995a9013f1b2f31a15b70e1d2e8ae501.zip | |
[GFS2] Function meta_read optimization
This patch optimizes function gfs2_meta_read. Basically, gfs2_meta_wait
was being called regardless of whether a disk read was requested.
This just pulls that wait into the if that triggers the read.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to '')
| -rw-r--r-- | fs/gfs2/meta_io.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/fs/gfs2/meta_io.c b/fs/gfs2/meta_io.c index 4b1aced9023d..3144d35a6261 100644 --- a/fs/gfs2/meta_io.c +++ b/fs/gfs2/meta_io.c @@ -222,13 +222,14 @@ int gfs2_meta_read(struct gfs2_glock *gl, u64 blkno, int flags, struct buffer_head **bhp) { *bhp = getbuf(gl, blkno, CREATE); - if (!buffer_uptodate(*bhp)) + if (!buffer_uptodate(*bhp)) { ll_rw_block(READ_META, 1, bhp); - if (flags & DIO_WAIT) { - int error = gfs2_meta_wait(gl->gl_sbd, *bhp); - if (error) { - brelse(*bhp); - return error; + if (flags & DIO_WAIT) { + int error = gfs2_meta_wait(gl->gl_sbd, *bhp); + if (error) { + brelse(*bhp); + return error; + } } } |