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author | Andreas Gruenbacher <agruenba@redhat.com> | 2018-04-16 09:25:21 -0700 |
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committer | Bob Peterson <rpeterso@redhat.com> | 2018-04-16 09:25:21 -0700 |
commit | 9a38662ba4e2682f3f3e9f3ce02a243b837aa8c6 (patch) | |
tree | 04e48c2048033df4b4ba399fd922405c9bb1ac6c /fs/gfs2/ops_fstype.c | |
parent | 16e205cf42da1f497b10a4a24f563e6c0d574eec (diff) | |
download | linux-9a38662ba4e2682f3f3e9f3ce02a243b837aa8c6.tar.bz2 |
gfs2: Remove sdp->sd_jheightsize
GFS2 keeps two arrarys in the superblock that define the maximum size of
an inode depending on the inode's height: sdp->sd_heightsize defines the
heights in units of sb->s_blocksize; sdp->sd_jheightsize defines them in
units of sb->s_blocksize - sizeof(struct gfs2_meta_header). These
arrays are used to determine when additional layers of indirect blocks
are needed. The second array is used for directories which have an
additional gfs2_meta_header at the beginning of each block.
Distinguishing between these two cases makes no sense: the height
required for representing N blocks will come out the same no matter if
the calculation is done in gross (sb->s_blocksize) or net
(sb->s_blocksize - sizeof(struct gfs2_meta_header)) units.
Stuffed directories don't have an additional gfs2_meta_header, but the
stuffed case is handled separately for both files and directories,
anyway.
Remove the unncessary sdp->sd_jheightsize array.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Diffstat (limited to 'fs/gfs2/ops_fstype.c')
-rw-r--r-- | fs/gfs2/ops_fstype.c | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c index 3ba3f167641c..c2469833b4fb 100644 --- a/fs/gfs2/ops_fstype.c +++ b/fs/gfs2/ops_fstype.c @@ -335,25 +335,6 @@ static int gfs2_read_sb(struct gfs2_sbd *sdp, int silent) sdp->sd_heightsize[x] = ~0; gfs2_assert(sdp, sdp->sd_max_height <= GFS2_MAX_META_HEIGHT); - sdp->sd_jheightsize[0] = sdp->sd_sb.sb_bsize - - sizeof(struct gfs2_dinode); - sdp->sd_jheightsize[1] = sdp->sd_jbsize * sdp->sd_diptrs; - for (x = 2;; x++) { - u64 space, d; - u32 m; - - space = sdp->sd_jheightsize[x - 1] * sdp->sd_inptrs; - d = space; - m = do_div(d, sdp->sd_inptrs); - - if (d != sdp->sd_jheightsize[x - 1] || m) - break; - sdp->sd_jheightsize[x] = space; - } - sdp->sd_max_jheight = x; - sdp->sd_jheightsize[x] = ~0; - gfs2_assert(sdp, sdp->sd_max_jheight <= GFS2_MAX_META_HEIGHT); - sdp->sd_max_dents_per_leaf = (sdp->sd_sb.sb_bsize - sizeof(struct gfs2_leaf)) / GFS2_MIN_DIRENT_SIZE; |