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authorLinus Torvalds <torvalds@linux-foundation.org>2009-12-14 12:58:24 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-14 12:58:24 -0500
commitd0316554d3586cbea60592a41391b5def2553d6f (patch)
tree5e7418f0bacbc68cec5dfd1541e03eb56870aa02 /fs/xfs/xfs_mount.c
parentfb0bbb92d42d5bd0ab224605444efdfed06d6934 (diff)
parent51e99be00ce2713cbb841cedc997cafa6e26c7f4 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (34 commits) m68k: rename global variable vmalloc_end to m68k_vmalloc_end percpu: add missing per_cpu_ptr_to_phys() definition for UP percpu: Fix kdump failure if booted with percpu_alloc=page percpu: make misc percpu symbols unique percpu: make percpu symbols in ia64 unique percpu: make percpu symbols in powerpc unique percpu: make percpu symbols in x86 unique percpu: make percpu symbols in xen unique percpu: make percpu symbols in cpufreq unique percpu: make percpu symbols in oprofile unique percpu: make percpu symbols in tracer unique percpu: make percpu symbols under kernel/ and mm/ unique percpu: remove some sparse warnings percpu: make alloc_percpu() handle array types vmalloc: fix use of non-existent percpu variable in put_cpu_var() this_cpu: Use this_cpu_xx in trace_functions_graph.c this_cpu: Use this_cpu_xx for ftrace this_cpu: Use this_cpu_xx in nmi handling this_cpu: Use this_cpu operations in RCU this_cpu: Use this_cpu ops for VM statistics ... Fix up trivial (famous last words) global per-cpu naming conflicts in arch/x86/kvm/svm.c mm/slab.c
Diffstat (limited to 'fs/xfs/xfs_mount.c')
-rw-r--r--fs/xfs/xfs_mount.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 66a888a9ad6f..bfffd6334abb 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -2389,12 +2389,12 @@ xfs_icsb_modify_counters(
2389{ 2389{
2390 xfs_icsb_cnts_t *icsbp; 2390 xfs_icsb_cnts_t *icsbp;
2391 long long lcounter; /* long counter for 64 bit fields */ 2391 long long lcounter; /* long counter for 64 bit fields */
2392 int cpu, ret = 0; 2392 int ret = 0;
2393 2393
2394 might_sleep(); 2394 might_sleep();
2395again: 2395again:
2396 cpu = get_cpu(); 2396 preempt_disable();
2397 icsbp = (xfs_icsb_cnts_t *)per_cpu_ptr(mp->m_sb_cnts, cpu); 2397 icsbp = this_cpu_ptr(mp->m_sb_cnts);
2398 2398
2399 /* 2399 /*
2400 * if the counter is disabled, go to slow path 2400 * if the counter is disabled, go to slow path
@@ -2438,11 +2438,11 @@ again:
2438 break; 2438 break;
2439 } 2439 }
2440 xfs_icsb_unlock_cntr(icsbp); 2440 xfs_icsb_unlock_cntr(icsbp);
2441 put_cpu(); 2441 preempt_enable();
2442 return 0; 2442 return 0;
2443 2443
2444slow_path: 2444slow_path:
2445 put_cpu(); 2445 preempt_enable();
2446 2446
2447 /* 2447 /*
2448 * serialise with a mutex so we don't burn lots of cpu on 2448 * serialise with a mutex so we don't burn lots of cpu on
@@ -2490,7 +2490,7 @@ slow_path:
2490 2490
2491balance_counter: 2491balance_counter:
2492 xfs_icsb_unlock_cntr(icsbp); 2492 xfs_icsb_unlock_cntr(icsbp);
2493 put_cpu(); 2493 preempt_enable();
2494 2494
2495 /* 2495 /*
2496 * We may have multiple threads here if multiple per-cpu 2496 * We may have multiple threads here if multiple per-cpu