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> |
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| .. | ||
| backing_ops.c | ||
| context.c | ||
| coredump.c | ||
| fault.c | ||
| file.c | ||
| gang.c | ||
| hw_ops.c | ||
| inode.c | ||
| lscsa_alloc.c | ||
| Makefile | ||
| run.c | ||
| sched.c | ||
| spu_restore_crt0.S | ||
| spu_restore_dump.h_shipped | ||
| spu_restore.c | ||
| spu_save_crt0.S | ||
| spu_save_dump.h_shipped | ||
| spu_save.c | ||
| spu_utils.h | ||
| spufs.h | ||
| switch.c | ||
| syscalls.c | ||