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gfs2: Use resource group glock sharing

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This patch takes advantage of the new glock holder sharing feature for
resource groups.  We have already introduced local resource group
locking in a previous patch, so competing accesses of local processes
are already under control.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
This commit is contained in:
Bob Peterson 2018-04-24 10:35:02 -07:00 committed by Andreas Gruenbacher
parent 06e908cd9e
commit 4fc7ec31c3
5 changed files with 15 additions and 12 deletions
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2
fs/gfs2/bmap.c
View File

@ -1538,7 +1538,7 @@ more_rgrps:
goto out;
}
ret = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE,
0, rd_gh);
LM_FLAG_NODE_SCOPE, rd_gh);
if (ret)
goto out;

6
fs/gfs2/inode.c
View File

@ -1145,7 +1145,7 @@ static int gfs2_unlink(struct inode *dir, struct dentry *dentry)
if (!rgd)
goto out_inodes;
gfs2_holder_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0, ghs + 2);
gfs2_holder_init(rgd->rd_gl, LM_ST_EXCLUSIVE, LM_FLAG_NODE_SCOPE, ghs + 2);
error = gfs2_glock_nq(ghs); /* parent */
@ -1450,8 +1450,8 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry,
error = -ENOENT;
goto out_gunlock;
}
error = gfs2_glock_nq_init(nrgd->rd_gl, LM_ST_EXCLUSIVE, 0,
&rd_gh);
error = gfs2_glock_nq_init(nrgd->rd_gl, LM_ST_EXCLUSIVE,
LM_FLAG_NODE_SCOPE, &rd_gh);
if (error)
goto out_gunlock;
}

10
fs/gfs2/rgrp.c
View File

@ -1442,7 +1442,8 @@ int gfs2_fitrim(struct file *filp, void __user *argp)
while (1) {
ret = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0, &gh);
ret = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE,
LM_FLAG_NODE_SCOPE, &gh);
if (ret)
goto out;
@ -2055,7 +2056,7 @@ int gfs2_inplace_reserve(struct gfs2_inode *ip, struct gfs2_alloc_parms *ap)
struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
struct gfs2_rgrpd *begin = NULL;
struct gfs2_blkreserv *rs = &ip->i_res;
int error = 0, flags = 0;
int error = 0, flags = LM_FLAG_NODE_SCOPE;
bool rg_locked;
u64 last_unlinked = NO_BLOCK;
u32 target = ap->target;
@ -2736,9 +2737,8 @@ void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist)
sizeof(struct gfs2_holder),
GFP_NOFS | __GFP_NOFAIL);
for (x = 0; x < rlist->rl_rgrps; x++)
gfs2_holder_init(rlist->rl_rgd[x]->rd_gl,
LM_ST_EXCLUSIVE, 0,
&rlist->rl_ghs[x]);
gfs2_holder_init(rlist->rl_rgd[x]->rd_gl, LM_ST_EXCLUSIVE,
LM_FLAG_NODE_SCOPE, &rlist->rl_ghs[x]);
}
/**

3
fs/gfs2/super.c
View File

@ -1229,7 +1229,8 @@ static int gfs2_dinode_dealloc(struct gfs2_inode *ip)
goto out_qs;
}
error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0, &gh);
error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE,
LM_FLAG_NODE_SCOPE, &gh);
if (error)
goto out_qs;

6
fs/gfs2/xattr.c
View File

@ -259,7 +259,8 @@ static int ea_dealloc_unstuffed(struct gfs2_inode *ip, struct buffer_head *bh,
return -EIO;
}
error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0, &rg_gh);
error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE,
LM_FLAG_NODE_SCOPE, &rg_gh);
if (error)
return error;
@ -1385,7 +1386,8 @@ static int ea_dealloc_block(struct gfs2_inode *ip)
return -EIO;
}
error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0, &gh);
error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE,
LM_FLAG_NODE_SCOPE, &gh);
if (error)
return error;