diff options
author | Jeremy Kerr <jk@ozlabs.org> | 2007-11-16 13:32:23 +1100 |
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committer | Paul Mackerras <paulus@samba.org> | 2007-11-20 16:10:20 +1100 |
commit | c443acab2eebf12dce7e78fe29e76786f55ad1be (patch) | |
tree | c740b3e4ee8c75ade937b2c8fc9fcbeb7f87cfe6 /arch/powerpc/kernel/time.c | |
parent | a2b51812a4dc5db09ab4d4638d4d8ed456e2457e (diff) |
[POWERPC] spufs: Fix context destroy vs /spu readdir race
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>
Diffstat (limited to 'arch/powerpc/kernel/time.c')
0 files changed, 0 insertions, 0 deletions