c443acab2e
We can currently cause an oops by repeatedly creating and destroying contexts, while doing getdents() calls on the "/spu" directory. This is due to the context's top-level dentry remaining hashed while the context is being destroyed. Fix this by unhashing the context's dentry with the dentry->d_inode->i_mutex held. This way, we'll hit the check for d_unhashed in dentry_readdir, and won't be included in the list of subdirs for /spu. test: spufs-testsuite:tests/01-spu_create/07-destroy-vs-readdir-race Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org> |
||
|---|---|---|
| .. | ||
| spufs | ||
| Kconfig | ||
| Makefile | ||
| axon_msi.c | ||
| cbe_cpufreq.c | ||
| cbe_cpufreq.h | ||
| cbe_cpufreq_pervasive.c | ||
| cbe_cpufreq_pmi.c | ||
| cbe_regs.c | ||
| cbe_thermal.c | ||
| interrupt.c | ||
| interrupt.h | ||
| io-workarounds.c | ||
| iommu.c | ||
| pervasive.c | ||
| pervasive.h | ||
| pmu.c | ||
| ras.c | ||
| ras.h | ||
| setup.c | ||
| smp.c | ||
| spider-pic.c | ||
| spu_base.c | ||
| spu_callbacks.c | ||
| spu_manage.c | ||
| spu_priv1_mmio.c | ||
| spu_priv1_mmio.h | ||
| spu_syscalls.c | ||