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xfs: remove the global xfs_Gqm structure

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If we initialize the slab caches for the quota code when XFS is loaded there
is no need for a global and reference counted quota manager structure.  Drop
all this overhead and also fix the error handling during quota initialization.

Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
This commit is contained in:
Christoph Hellwig
2012-03-13 08:52:37 +00:00
committed by Ben Myers
parent b84a3a9675
commit a05931ceb0
7 changed files with 46 additions and 174 deletions
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35
fs/xfs/xfs_dquot.c
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@@ -59,6 +59,9 @@ int xfs_dqreq_num;
int xfs_dqerror_mod = 33;
#endif
struct kmem_zone *xfs_qm_dqtrxzone;
static struct kmem_zone *xfs_qm_dqzone;
static struct lock_class_key xfs_dquot_other_class;
/*
@@ -71,7 +74,7 @@ xfs_qm_dqdestroy(
ASSERT(list_empty(&dqp->q_lru));
mutex_destroy(&dqp->q_qlock);
kmem_zone_free(xfs_Gqm->qm_dqzone, dqp);
kmem_zone_free(xfs_qm_dqzone, dqp);
XFS_STATS_DEC(xs_qm_dquot);
}
@@ -491,7 +494,7 @@ xfs_qm_dqread(
int cancelflags = 0;
dqp = kmem_zone_zalloc(xfs_Gqm->qm_dqzone, KM_SLEEP);
dqp = kmem_zone_zalloc(xfs_qm_dqzone, KM_SLEEP);
dqp->dq_flags = type;
dqp->q_core.d_id = cpu_to_be32(id);
@@ -1040,3 +1043,31 @@ xfs_dqflock_pushbuf_wait(
out_lock:
xfs_dqflock(dqp);
}
int __init
xfs_qm_init(void)
{
xfs_qm_dqzone =
kmem_zone_init(sizeof(struct xfs_dquot), "xfs_dquot");
if (!xfs_qm_dqzone)
goto out;
xfs_qm_dqtrxzone =
kmem_zone_init(sizeof(struct xfs_dquot_acct), "xfs_dqtrx");
if (!xfs_qm_dqtrxzone)
goto out_free_dqzone;
return 0;
out_free_dqzone:
kmem_zone_destroy(xfs_qm_dqzone);
out:
return -ENOMEM;
}
void __exit
xfs_qm_exit(void)
{
kmem_zone_destroy(xfs_qm_dqtrxzone);
kmem_zone_destroy(xfs_qm_dqzone);
}