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authorJeremy Kerr <jk@ozlabs.org>2007-11-16 13:32:23 +1100
committerPaul Mackerras <paulus@samba.org>2007-11-20 16:10:20 +1100
commitc443acab2eebf12dce7e78fe29e76786f55ad1be (patch)
treec740b3e4ee8c75ade937b2c8fc9fcbeb7f87cfe6 /arch/powerpc/kernel/time.c
parenta2b51812a4dc5db09ab4d4638d4d8ed456e2457e (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