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| author | Paul Menage <menage@google.com> | 2009-01-29 23:25:22 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-30 03:04:45 +0100 |
| commit | 839ec5452ebfd5905b9c69b20ceb640903a8ea1a (patch) | |
| tree | 42e371a4230c50c3cb34c92e80f5fa199b01dd2b /drivers/misc | |
| parent | cgroups: add cpu_relax() calls in css_tryget() and cgroup_clear_css_refs() (diff) | |
| download | linux-839ec5452ebfd5905b9c69b20ceb640903a8ea1a.tar.xz linux-839ec5452ebfd5905b9c69b20ceb640903a8ea1a.zip | |
cgroup: fix root_count when mount fails due to busy subsystem
root_count was being incremented in cgroup_get_sb() after all error
checking was complete, but decremented in cgroup_kill_sb(), which can be
called on a superblock that we gave up on due to an error. This patch
changes cgroup_kill_sb() to only decrement root_count if the root was
previously linked into the list of roots.
Signed-off-by: Paul Menage <menage@google.com>
Tested-by: Serge Hallyn <serue@us.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/misc')
0 files changed, 0 insertions, 0 deletions