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| author |   Bob Peterson <rpeterso@redhat.com> | 2015-03-16 11:52:05 -0500 |
|---|---|---|
| committer | Bob Peterson <rpeterso@redhat.com> | 2015-09-03 13:33:09 -0500 |
| commit | 15562c439d0a1850b71aa1c0d92d1f4fb9503c8d (patch) | |
| tree | 172b76ac4411cc2f1e740dc054cf15954f5e6084 /fs/gfs2/meta_io.c | |
| parent | gfs2: Simplify the seq file code for "sbstats" (diff) | |
| download | linux-dev-15562c439d0a1850b71aa1c0d92d1f4fb9503c8d.tar.xz linux-dev-15562c439d0a1850b71aa1c0d92d1f4fb9503c8d.zip | |
GFS2: Move glock superblock pointer to field gl_name
What uniquely identifies a glock in the glock hash table is not
gl_name, but gl_name and its superblock pointer. This patch makes
the gl_name field correspond to a unique glock identifier. That will
allow us to simplify hashing with a future patch, since the hash
algorithm can then take the gl_name and hash its components in one
operation.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Acked-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/meta_io.c')
| -rw-r--r-- | fs/gfs2/meta_io.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/gfs2/meta_io.c b/fs/gfs2/meta_io.c index b984a6e190bc..0e1d4be5865a 100644 --- a/fs/gfs2/meta_io.c +++ b/fs/gfs2/meta_io.c @@ -114,7 +114,7 @@ const struct address_space_operations gfs2_rgrp_aops = { struct buffer_head *gfs2_getbuf(struct gfs2_glock *gl, u64 blkno, int create) { struct address_space *mapping = gfs2_glock2aspace(gl); - struct gfs2_sbd *sdp = gl->gl_sbd; + struct gfs2_sbd *sdp = gl->gl_name.ln_sbd; struct page *page; struct buffer_head *bh; unsigned int shift; @@ -200,7 +200,7 @@ struct buffer_head *gfs2_meta_new(struct gfs2_glock *gl, u64 blkno) int gfs2_meta_read(struct gfs2_glock *gl, u64 blkno, int flags, struct buffer_head **bhp) { - struct gfs2_sbd *sdp = gl->gl_sbd; + struct gfs2_sbd *sdp = gl->gl_name.ln_sbd; struct buffer_head *bh; if (unlikely(test_bit(SDF_SHUTDOWN, &sdp->sd_flags))) { @@ -362,7 +362,7 @@ int gfs2_meta_indirect_buffer(struct gfs2_inode *ip, int height, u64 num, struct buffer_head *gfs2_meta_ra(struct gfs2_glock *gl, u64 dblock, u32 extlen) { - struct gfs2_sbd *sdp = gl->gl_sbd; + struct gfs2_sbd *sdp = gl->gl_name.ln_sbd; struct buffer_head *first_bh, *bh; u32 max_ra = gfs2_tune_get(sdp, gt_max_readahead) >> sdp->sd_sb.sb_bsize_shift; |