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-rw-r--r--fs/xfs/libxfs/xfs_sb.c1
-rw-r--r--fs/xfs/xfs_fsops.c2
-rw-r--r--fs/xfs/xfs_mount.c76
-rw-r--r--fs/xfs/xfs_mount.h2
-rw-r--r--fs/xfs/xfs_super.c4
-rw-r--r--fs/xfs/xfs_trans.c5
6 files changed, 42 insertions, 48 deletions
diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c
index 017cb2fc53eb..b66aeab99cfb 100644
--- a/fs/xfs/libxfs/xfs_sb.c
+++ b/fs/xfs/libxfs/xfs_sb.c
@@ -772,6 +772,7 @@ xfs_log_sb(
struct xfs_buf *bp = xfs_trans_getsb(tp, mp, 0);
mp->m_sb.sb_icount = percpu_counter_sum(&mp->m_icount);
+ mp->m_sb.sb_ifree = percpu_counter_sum(&mp->m_ifree);
xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb);
xfs_trans_buf_set_type(tp, bp, XFS_BLFT_SB_BUF);
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index b87a6f92263b..a1ca9c2b8c00 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -639,11 +639,11 @@ xfs_fs_counts(
{
xfs_icsb_sync_counters(mp, XFS_ICSB_LAZY_COUNT);
cnt->allocino = percpu_counter_read_positive(&mp->m_icount);
+ cnt->freeino = percpu_counter_read_positive(&mp->m_ifree);
spin_lock(&mp->m_sb_lock);
cnt->freedata = mp->m_sb.sb_fdblocks - XFS_ALLOC_SET_ASIDE(mp);
cnt->freertx = mp->m_sb.sb_frextents;
- cnt->freeino = mp->m_sb.sb_ifree;
spin_unlock(&mp->m_sb_lock);
return 0;
}
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 702ea6a7e648..650e8f18cd2a 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -1114,6 +1114,20 @@ xfs_mod_icount(
return 0;
}
+
+int
+xfs_mod_ifree(
+ struct xfs_mount *mp,
+ int64_t delta)
+{
+ percpu_counter_add(&mp->m_ifree, delta);
+ if (percpu_counter_compare(&mp->m_ifree, 0) < 0) {
+ ASSERT(0);
+ percpu_counter_add(&mp->m_ifree, -delta);
+ return -EINVAL;
+ }
+ return 0;
+}
/*
* xfs_mod_incore_sb_unlocked() is a utility routine commonly used to apply
* a delta to a specified field in the in-core superblock. Simply
@@ -1142,17 +1156,9 @@ xfs_mod_incore_sb_unlocked(
*/
switch (field) {
case XFS_SBS_ICOUNT:
- ASSERT(0);
- return -ENOSPC;
case XFS_SBS_IFREE:
- lcounter = (long long)mp->m_sb.sb_ifree;
- lcounter += delta;
- if (lcounter < 0) {
- ASSERT(0);
- return -EINVAL;
- }
- mp->m_sb.sb_ifree = lcounter;
- return 0;
+ ASSERT(0);
+ return -EINVAL;
case XFS_SBS_FDBLOCKS:
lcounter = (long long)
mp->m_sb.sb_fdblocks - XFS_ALLOC_SET_ASIDE(mp);
@@ -1502,7 +1508,6 @@ xfs_icsb_cpu_notify(
case CPU_ONLINE:
case CPU_ONLINE_FROZEN:
xfs_icsb_lock(mp);
- xfs_icsb_balance_counter(mp, XFS_SBS_IFREE, 0);
xfs_icsb_balance_counter(mp, XFS_SBS_FDBLOCKS, 0);
xfs_icsb_unlock(mp);
break;
@@ -1513,15 +1518,12 @@ xfs_icsb_cpu_notify(
* re-enable the counters. */
xfs_icsb_lock(mp);
spin_lock(&mp->m_sb_lock);
- xfs_icsb_disable_counter(mp, XFS_SBS_IFREE);
xfs_icsb_disable_counter(mp, XFS_SBS_FDBLOCKS);
- mp->m_sb.sb_ifree += cntp->icsb_ifree;
mp->m_sb.sb_fdblocks += cntp->icsb_fdblocks;
memset(cntp, 0, sizeof(xfs_icsb_cnts_t));
- xfs_icsb_balance_counter_locked(mp, XFS_SBS_IFREE, 0);
xfs_icsb_balance_counter_locked(mp, XFS_SBS_FDBLOCKS, 0);
spin_unlock(&mp->m_sb_lock);
xfs_icsb_unlock(mp);
@@ -1544,10 +1546,14 @@ xfs_icsb_init_counters(
if (error)
return error;
+ error = percpu_counter_init(&mp->m_ifree, 0, GFP_KERNEL);
+ if (error)
+ goto free_icount;
+
mp->m_sb_cnts = alloc_percpu(xfs_icsb_cnts_t);
if (!mp->m_sb_cnts) {
- percpu_counter_destroy(&mp->m_icount);
- return -ENOMEM;
+ error = -ENOMEM;
+ goto free_ifree;
}
for_each_online_cpu(i) {
@@ -1570,6 +1576,12 @@ xfs_icsb_init_counters(
#endif /* CONFIG_HOTPLUG_CPU */
return 0;
+
+free_ifree:
+ percpu_counter_destroy(&mp->m_ifree);
+free_icount:
+ percpu_counter_destroy(&mp->m_icount);
+ return error;
}
void
@@ -1577,6 +1589,7 @@ xfs_icsb_reinit_counters(
xfs_mount_t *mp)
{
percpu_counter_set(&mp->m_icount, mp->m_sb.sb_icount);
+ percpu_counter_set(&mp->m_ifree, mp->m_sb.sb_ifree);
xfs_icsb_lock(mp);
/*
@@ -1584,7 +1597,6 @@ xfs_icsb_reinit_counters(
* initial balance kicks us off correctly
*/
mp->m_icsb_counters = -1;
- xfs_icsb_balance_counter(mp, XFS_SBS_IFREE, 0);
xfs_icsb_balance_counter(mp, XFS_SBS_FDBLOCKS, 0);
xfs_icsb_unlock(mp);
}
@@ -1599,6 +1611,7 @@ xfs_icsb_destroy_counters(
}
percpu_counter_destroy(&mp->m_icount);
+ percpu_counter_destroy(&mp->m_ifree);
mutex_destroy(&mp->m_icsb_mutex);
}
@@ -1662,7 +1675,6 @@ xfs_icsb_count(
for_each_online_cpu(i) {
cntp = (xfs_icsb_cnts_t *)per_cpu_ptr(mp->m_sb_cnts, i);
- cnt->icsb_ifree += cntp->icsb_ifree;
cnt->icsb_fdblocks += cntp->icsb_fdblocks;
}
@@ -1675,7 +1687,7 @@ xfs_icsb_counter_disabled(
xfs_mount_t *mp,
xfs_sb_field_t field)
{
- ASSERT((field >= XFS_SBS_IFREE) && (field <= XFS_SBS_FDBLOCKS));
+ ASSERT(field == XFS_SBS_FDBLOCKS);
return test_bit(field, &mp->m_icsb_counters);
}
@@ -1686,7 +1698,7 @@ xfs_icsb_disable_counter(
{
xfs_icsb_cnts_t cnt;
- ASSERT((field >= XFS_SBS_IFREE) && (field <= XFS_SBS_FDBLOCKS));
+ ASSERT(field == XFS_SBS_FDBLOCKS);
/*
* If we are already disabled, then there is nothing to do
@@ -1705,9 +1717,6 @@ xfs_icsb_disable_counter(
xfs_icsb_count(mp, &cnt, XFS_ICSB_LAZY_COUNT);
switch(field) {
- case XFS_SBS_IFREE:
- mp->m_sb.sb_ifree = cnt.icsb_ifree;
- break;
case XFS_SBS_FDBLOCKS:
mp->m_sb.sb_fdblocks = cnt.icsb_fdblocks;
break;
@@ -1729,15 +1738,12 @@ xfs_icsb_enable_counter(
xfs_icsb_cnts_t *cntp;
int i;
- ASSERT((field >= XFS_SBS_IFREE) && (field <= XFS_SBS_FDBLOCKS));
+ ASSERT(field == XFS_SBS_FDBLOCKS);
xfs_icsb_lock_all_counters(mp);
for_each_online_cpu(i) {
cntp = per_cpu_ptr(mp->m_sb_cnts, i);
switch (field) {
- case XFS_SBS_IFREE:
- cntp->icsb_ifree = count + resid;
- break;
case XFS_SBS_FDBLOCKS:
cntp->icsb_fdblocks = count + resid;
break;
@@ -1760,8 +1766,6 @@ xfs_icsb_sync_counters_locked(
xfs_icsb_count(mp, &cnt, flags);
- if (!xfs_icsb_counter_disabled(mp, XFS_SBS_IFREE))
- mp->m_sb.sb_ifree = cnt.icsb_ifree;
if (!xfs_icsb_counter_disabled(mp, XFS_SBS_FDBLOCKS))
mp->m_sb.sb_fdblocks = cnt.icsb_fdblocks;
}
@@ -1813,12 +1817,6 @@ xfs_icsb_balance_counter_locked(
/* update counters - first CPU gets residual*/
switch (field) {
- case XFS_SBS_IFREE:
- count = mp->m_sb.sb_ifree;
- resid = do_div(count, weight);
- if (count < max(min, XFS_ICSB_INO_CNTR_REENABLE))
- return;
- break;
case XFS_SBS_FDBLOCKS:
count = mp->m_sb.sb_fdblocks;
resid = do_div(count, weight);
@@ -1873,14 +1871,6 @@ again:
}
switch (field) {
- case XFS_SBS_IFREE:
- lcounter = icsbp->icsb_ifree;
- lcounter += delta;
- if (unlikely(lcounter < 0))
- goto balance_counter;
- icsbp->icsb_ifree = lcounter;
- break;
-
case XFS_SBS_FDBLOCKS:
BUG_ON((mp->m_resblks - mp->m_resblks_avail) != 0);
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 76b18c8c58c5..7ce997d43d81 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -84,6 +84,7 @@ typedef struct xfs_mount {
struct xfs_sb m_sb; /* copy of fs superblock */
spinlock_t m_sb_lock; /* sb counter lock */
struct percpu_counter m_icount; /* allocated inodes counter */
+ struct percpu_counter m_ifree; /* free inodes counter */
struct xfs_buf *m_sb_bp; /* buffer for superblock */
char *m_fsname; /* filesystem name */
@@ -391,6 +392,7 @@ extern int xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int64_t, int);
extern int xfs_mod_incore_sb_batch(xfs_mount_t *, xfs_mod_sb_t *,
uint, int);
extern int xfs_mod_icount(struct xfs_mount *mp, int64_t delta);
+extern int xfs_mod_ifree(struct xfs_mount *mp, int64_t delta);
extern int xfs_mount_log_sb(xfs_mount_t *);
extern struct xfs_buf *xfs_getsb(xfs_mount_t *, int);
extern int xfs_readsb(xfs_mount_t *, int);
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 0aa4428bfa31..049147776ee1 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1086,6 +1086,7 @@ xfs_fs_statfs(
struct xfs_inode *ip = XFS_I(dentry->d_inode);
__uint64_t fakeinos, id;
__uint64_t icount;
+ __uint64_t ifree;
xfs_extlen_t lsize;
__int64_t ffree;
@@ -1098,6 +1099,7 @@ xfs_fs_statfs(
xfs_icsb_sync_counters(mp, XFS_ICSB_LAZY_COUNT);
icount = percpu_counter_sum(&mp->m_icount);
+ ifree = percpu_counter_sum(&mp->m_ifree);
spin_lock(&mp->m_sb_lock);
statp->f_bsize = sbp->sb_blocksize;
@@ -1118,7 +1120,7 @@ xfs_fs_statfs(
sbp->sb_icount);
/* make sure statp->f_ffree does not underflow */
- ffree = statp->f_files - (icount - sbp->sb_ifree);
+ ffree = statp->f_files - (icount - ifree);
statp->f_ffree = max_t(__int64_t, ffree, 0);
spin_unlock(&mp->m_sb_lock);
diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c
index 9bc742b65f24..68680ce67547 100644
--- a/fs/xfs/xfs_trans.c
+++ b/fs/xfs/xfs_trans.c
@@ -560,8 +560,7 @@ xfs_trans_unreserve_and_mod_sb(
}
if (ifreedelta) {
- error = xfs_icsb_modify_counters(mp, XFS_SBS_IFREE,
- ifreedelta, rsvd);
+ error = xfs_mod_ifree(mp, ifreedelta);
if (error)
goto out_undo_icount;
}
@@ -630,7 +629,7 @@ xfs_trans_unreserve_and_mod_sb(
out_undo_ifreecount:
if (ifreedelta)
- xfs_icsb_modify_counters(mp, XFS_SBS_IFREE, -ifreedelta, rsvd);
+ xfs_mod_ifree(mp, -ifreedelta);
out_undo_icount:
if (idelta)
xfs_mod_icount(mp, -idelta);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-25 13:59:55 +0100