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linux/arch/powerpc
Jeremy Kerr c443acab2e [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>
2007-11-20 16:10:20 +11:00
..
boot Merge branch 'for-2.6.24' of master.kernel.org:/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx into merge 2007-11-08 14:28:14 +11:00
configs [POWERPC] Refresh ppc64_defconfig and enable pasemi-related options 2007-11-08 14:15:34 +11:00
kernel [POWERPC] Fix RTAS os-term usage on kernel panic 2007-11-20 16:10:09 +11:00
lib [POWERPC] rheap: Changes config mechanism 2007-10-16 17:09:21 -06:00
math-emu [POWERPC] Fix handling of stfiwx math emulation 2007-10-16 09:05:24 -05:00
mm [POWERPC] Fix build failure on legacy iSeries 2007-11-20 11:37:39 +11:00
oprofile Combine instrumentation menus in kernel/Kconfig.instrumentation 2007-10-19 11:53:54 -07:00
platforms [POWERPC] spufs: Fix context destroy vs /spu readdir race 2007-11-20 16:10:20 +11:00
sysdev Merge branch 'for-2.6.24' of master.kernel.org:/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx into merge 2007-11-20 11:39:26 +11:00
xmon
.gitignore
Kconfig Combine instrumentation menus in kernel/Kconfig.instrumentation 2007-10-19 11:53:54 -07:00
Kconfig.debug [POWERPC] 4xx: Split early debug output and early boot console for 44x 2007-10-19 16:18:18 -05:00
Makefile [POWERPC] Add -mno-spe for ARCH=powerpc builds 2007-11-09 03:47:29 -06:00