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xfs: do not use xfs_mod_incore_sb for per-cpu counters

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Export xfs_icsb_modify_counters and always use it for modifying
the per-cpu counters.  Remove support for per-cpu counters from
xfs_mod_incore_sb to simplify it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
This commit is contained in:
Christoph Hellwig
2010-09-30 02:25:55 +00:00
committed by Alex Elder
parent 61ba35dea0
commit 96540c7858
5 changed files with 35 additions and 40 deletions
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32
fs/xfs/xfs_mount.c
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@@ -52,16 +52,11 @@ STATIC void xfs_icsb_balance_counter(xfs_mount_t *, xfs_sb_field_t,
int);
STATIC void xfs_icsb_balance_counter_locked(xfs_mount_t *, xfs_sb_field_t,
int);
STATIC int xfs_icsb_modify_counters(xfs_mount_t *, xfs_sb_field_t,
int64_t, int);
STATIC void xfs_icsb_disable_counter(xfs_mount_t *, xfs_sb_field_t);
#else
#define xfs_icsb_balance_counter(mp, a, b) do { } while (0)
#define xfs_icsb_balance_counter_locked(mp, a, b) do { } while (0)
#define xfs_icsb_modify_counters(mp, a, b, c) do { } while (0)
#endif
static const struct {
@@ -1843,28 +1838,19 @@ xfs_mod_incore_sb_unlocked(
*/
int
xfs_mod_incore_sb(
xfs_mount_t *mp,
xfs_sb_field_t field,
int64_t delta,
int rsvd)
struct xfs_mount *mp,
xfs_sb_field_t field,
int64_t delta,
int rsvd)
{
int status;
int status;
/* check for per-cpu counters */
switch (field) {
#ifdef HAVE_PERCPU_SB
case XFS_SBS_ICOUNT:
case XFS_SBS_IFREE:
case XFS_SBS_FDBLOCKS:
status = xfs_icsb_modify_counters(mp, field, delta, rsvd);
break;
ASSERT(field < XFS_SBS_ICOUNT || field > XFS_SBS_FDBLOCKS);
#endif
default:
spin_lock(&mp->m_sb_lock);
status = xfs_mod_incore_sb_unlocked(mp, field, delta, rsvd);
spin_unlock(&mp->m_sb_lock);
break;
}
spin_lock(&mp->m_sb_lock);
status = xfs_mod_incore_sb_unlocked(mp, field, delta, rsvd);
spin_unlock(&mp->m_sb_lock);
return status;
}