diff options
Diffstat (limited to 'fs/xfs')
| -rw-r--r-- | fs/xfs/xfs_mount.c | 58 |
1 files changed, 31 insertions, 27 deletions
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index a2fad07fd844..8bdc16381bc5 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -54,7 +54,9 @@ STATIC void xfs_unmountfs_wait(xfs_mount_t *); #ifdef HAVE_PERCPU_SB STATIC void xfs_icsb_destroy_counters(xfs_mount_t *); STATIC void xfs_icsb_balance_counter(xfs_mount_t *, xfs_sb_field_t, - int, int); + 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); @@ -62,7 +64,8 @@ STATIC void xfs_icsb_disable_counter(xfs_mount_t *, xfs_sb_field_t); #else #define xfs_icsb_destroy_counters(mp) do { } while (0) -#define xfs_icsb_balance_counter(mp, a, b, c) do { } while (0) +#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 @@ -2024,9 +2027,9 @@ xfs_icsb_cpu_notify( case CPU_ONLINE: case CPU_ONLINE_FROZEN: xfs_icsb_lock(mp); - xfs_icsb_balance_counter(mp, XFS_SBS_ICOUNT, 0, 0); - xfs_icsb_balance_counter(mp, XFS_SBS_IFREE, 0, 0); - xfs_icsb_balance_counter(mp, XFS_SBS_FDBLOCKS, 0, 0); + xfs_icsb_balance_counter(mp, XFS_SBS_ICOUNT, 0); + xfs_icsb_balance_counter(mp, XFS_SBS_IFREE, 0); + xfs_icsb_balance_counter(mp, XFS_SBS_FDBLOCKS, 0); xfs_icsb_unlock(mp); break; case CPU_DEAD: @@ -2046,12 +2049,9 @@ xfs_icsb_cpu_notify( memset(cntp, 0, sizeof(xfs_icsb_cnts_t)); - xfs_icsb_balance_counter(mp, XFS_SBS_ICOUNT, - XFS_ICSB_SB_LOCKED, 0); - xfs_icsb_balance_counter(mp, XFS_SBS_IFREE, - XFS_ICSB_SB_LOCKED, 0); - xfs_icsb_balance_counter(mp, XFS_SBS_FDBLOCKS, - XFS_ICSB_SB_LOCKED, 0); + xfs_icsb_balance_counter_locked(mp, XFS_SBS_ICOUNT, 0); + 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); break; @@ -2103,9 +2103,9 @@ xfs_icsb_reinit_counters( * initial balance kicks us off correctly */ mp->m_icsb_counters = -1; - xfs_icsb_balance_counter(mp, XFS_SBS_ICOUNT, 0, 0); - xfs_icsb_balance_counter(mp, XFS_SBS_IFREE, 0, 0); - xfs_icsb_balance_counter(mp, XFS_SBS_FDBLOCKS, 0, 0); + xfs_icsb_balance_counter(mp, XFS_SBS_ICOUNT, 0); + xfs_icsb_balance_counter(mp, XFS_SBS_IFREE, 0); + xfs_icsb_balance_counter(mp, XFS_SBS_FDBLOCKS, 0); xfs_icsb_unlock(mp); } @@ -2325,19 +2325,15 @@ xfs_icsb_sync_counters( #define XFS_ICSB_FDBLK_CNTR_REENABLE(mp) \ (uint64_t)(512 + XFS_ALLOC_SET_ASIDE(mp)) STATIC void -xfs_icsb_balance_counter( +xfs_icsb_balance_counter_locked( xfs_mount_t *mp, xfs_sb_field_t field, - int flags, int min_per_cpu) { uint64_t count, resid; int weight = num_online_cpus(); uint64_t min = (uint64_t)min_per_cpu; - if (!(flags & XFS_ICSB_SB_LOCKED)) - spin_lock(&mp->m_sb_lock); - /* disable counter and sync counter */ xfs_icsb_disable_counter(mp, field); @@ -2347,19 +2343,19 @@ xfs_icsb_balance_counter( count = mp->m_sb.sb_icount; resid = do_div(count, weight); if (count < max(min, XFS_ICSB_INO_CNTR_REENABLE)) - goto out; + return; break; case XFS_SBS_IFREE: count = mp->m_sb.sb_ifree; resid = do_div(count, weight); if (count < max(min, XFS_ICSB_INO_CNTR_REENABLE)) - goto out; + return; break; case XFS_SBS_FDBLOCKS: count = mp->m_sb.sb_fdblocks; resid = do_div(count, weight); if (count < max(min, XFS_ICSB_FDBLK_CNTR_REENABLE(mp))) - goto out; + return; break; default: BUG(); @@ -2368,9 +2364,17 @@ xfs_icsb_balance_counter( } xfs_icsb_enable_counter(mp, field, count, resid); -out: - if (!(flags & XFS_ICSB_SB_LOCKED)) - spin_unlock(&mp->m_sb_lock); +} + +STATIC void +xfs_icsb_balance_counter( + xfs_mount_t *mp, + xfs_sb_field_t fields, + int min_per_cpu) +{ + spin_lock(&mp->m_sb_lock); + xfs_icsb_balance_counter_locked(mp, fields, min_per_cpu); + spin_unlock(&mp->m_sb_lock); } STATIC int @@ -2477,7 +2481,7 @@ slow_path: * we are done. */ if (ret != ENOSPC) - xfs_icsb_balance_counter(mp, field, 0, 0); + xfs_icsb_balance_counter(mp, field, 0); xfs_icsb_unlock(mp); return ret; @@ -2501,7 +2505,7 @@ balance_counter: * will either succeed through the fast path or slow path without * another balance operation being required. */ - xfs_icsb_balance_counter(mp, field, 0, delta); + xfs_icsb_balance_counter(mp, field, delta); xfs_icsb_unlock(mp); goto again; } |