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| author | Jan Blunck <jblunck@infradead.org> | 2010-02-24 13:25:34 +0100 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2010-10-04 21:10:42 +0200 |
| commit | 38d018dba3f725b969f196550d92a6ec1c092428 (patch) | |
| tree | 3699b1b32aa5b6f42e323690299ba60f1b32b981 /kernel/cgroup.c | |
| parent | efdffb54034a6fc96bc7fafa33ca2a5503113eee (diff) | |
| download | linux-38d018dba3f725b969f196550d92a6ec1c092428.tar.gz | |
BKL: Remove BKL from cgroup
The BKL is only used in remount_fs and get_sb that are both protected by the superblocks s_umount rw_semaphore. Therefore it is safe to remove the BKL entirely. Signed-off-by: Jan Blunck <jblunck@infradead.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'kernel/cgroup.c')
| -rw-r--r-- | kernel/cgroup.c | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c index a7ba3bccadc5..304d27759949 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -52,7 +52,6 @@ #include <linux/cgroupstats.h> #include <linux/hash.h> #include <linux/namei.h> -#include <linux/smp_lock.h> #include <linux/pid_namespace.h> #include <linux/idr.h> #include <linux/vmalloc.h> /* TODO: replace with more sophisticated array */ @@ -1222,7 +1221,6 @@ static int cgroup_remount(struct super_block *sb, int *flags, char *data) struct cgroup *cgrp = &root->top_cgroup; struct cgroup_sb_opts opts; - lock_kernel(); mutex_lock(&cgrp->dentry->d_inode->i_mutex); mutex_lock(&cgroup_mutex); @@ -1255,7 +1253,6 @@ static int cgroup_remount(struct super_block *sb, int *flags, char *data) kfree(opts.name); mutex_unlock(&cgroup_mutex); mutex_unlock(&cgrp->dentry->d_inode->i_mutex); - unlock_kernel(); return ret; } @@ -1430,8 +1427,6 @@ static int cgroup_get_sb(struct file_system_type *fs_type, struct super_block *sb; struct cgroupfs_root *new_root; - lock_kernel(); - /* First find the desired set of subsystems */ mutex_lock(&cgroup_mutex); ret = parse_cgroupfs_options(data, &opts); @@ -1561,7 +1556,6 @@ static int cgroup_get_sb(struct file_system_type *fs_type, simple_set_mnt(mnt, sb); kfree(opts.release_agent); kfree(opts.name); - unlock_kernel(); return 0; drop_new_super: @@ -1571,8 +1565,6 @@ static int cgroup_get_sb(struct file_system_type *fs_type, out_err: kfree(opts.release_agent); kfree(opts.name); - unlock_kernel(); - return ret; } |