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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-04-04 08:36:40 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-04-04 08:36:40 -0700 |
| commit | 4da7e90e653d67dfd405868246d316b04852e2d5 (patch) | |
| tree | 735707a0b9f0c212776717ec8bc95735ff6a1d01 /kernel | |
| parent | fb9a7d76da108d120efb2258ea83b18dbbb2ecdd (diff) | |
| parent | fd1edb3aa2c1d92618d8f0c6d15d44ea41fcac6a (diff) | |
| download | linux-4da7e90e653d67dfd405868246d316b04852e2d5.tar.bz2 | |
Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
perf: Fix task_struct reference leak
perf: Fix task context scheduling
perf: mmap 512 kiB by default
perf: Rebase max unprivileged mlock threshold on top of page size
perf tools: Fix NO_NEWT=1 python build error
perf symbols: Properly align symbol_conf.priv_size
perf tools: Emit clearer message for sys_perf_event_open ENOENT return
perf tools: Fixup exit path when not able to open events
perf symbols: Fix vsyscall symbol lookup
oprofile, x86: Allow setting EDGE/INV/CMASK for counter events
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/perf_event.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/kernel/perf_event.c b/kernel/perf_event.c index c75925c4d1e2..27960f114efd 100644 --- a/kernel/perf_event.c +++ b/kernel/perf_event.c @@ -145,8 +145,8 @@ static struct srcu_struct pmus_srcu; */ int sysctl_perf_event_paranoid __read_mostly = 1; -/* Minimum for 128 pages + 1 for the user control page */ -int sysctl_perf_event_mlock __read_mostly = 516; /* 'free' kb per user */ +/* Minimum for 512 kiB + 1 user control page */ +int sysctl_perf_event_mlock __read_mostly = 512 + (PAGE_SIZE / 1024); /* 'free' kiB per user */ /* * max perf event sample rate @@ -6531,6 +6531,11 @@ SYSCALL_DEFINE5(perf_event_open, goto err_alloc; } + if (task) { + put_task_struct(task); + task = NULL; + } + /* * Look up the group leader (we will attach this event to it): */ |