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| author | Ciju Rajan K <ciju@linux.vnet.ibm.com> | 2010-08-23 10:56:30 +0200 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2010-08-23 10:56:30 +0200 |
| commit | 96aa1b419d47286db446f292cf898bb1a8b27f24 (patch) | |
| tree | 1b7a7c5c8131374396df69fd52d02de5de06e978 /block/blk-cgroup.c | |
| parent | 9ee47476d6734c9deb9ae9ab05d963302f6b6150 (diff) | |
| download | linux-96aa1b419d47286db446f292cf898bb1a8b27f24.tar.gz linux-96aa1b419d47286db446f292cf898bb1a8b27f24.tar.bz2 linux-96aa1b419d47286db446f292cf898bb1a8b27f24.zip | |
blkio: Fix return code for mkdir calls
If the cgroup hierarchy for blkio control groups is deeper than two
levels, kernel should not allow the creation of further levels. mkdir
system call does not except EINVAL as a return value. This patch
replaces EINVAL with more appropriate EPERM
Signed-off-by: Ciju Rajan K <ciju@linux.vnet.ibm.com>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'block/blk-cgroup.c')
| -rw-r--r-- | block/blk-cgroup.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index a6809645d212..2fef1ef931a0 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -966,7 +966,7 @@ blkiocg_create(struct cgroup_subsys *subsys, struct cgroup *cgroup) /* Currently we do not support hierarchy deeper than two level (0,1) */ if (parent != cgroup->top_cgroup) - return ERR_PTR(-EINVAL); + return ERR_PTR(-EPERM); blkcg = kzalloc(sizeof(*blkcg), GFP_KERNEL); if (!blkcg) |