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There's no reason to call rcu_barrier() on every deactivate_locked_super(). We only need to make sure that all delayed rcu free inodes are flushed before we destroy related cache. Removing rcu_barrier() from deactivate_locked_super() affects some fast paths. E.g. on my machine exit_group() of a last process in IPC namespace takes 0.07538s. rcu_barrier() takes 0.05188s of that time. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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dir.c | ||
file.c | ||
getopt.c | ||
getopt.h | ||
inode.c | ||
ioctl.c | ||
Kconfig | ||
Makefile | ||
mmap.c | ||
ncp_fs_i.h | ||
ncp_fs_sb.h | ||
ncp_fs.h | ||
ncplib_kernel.c | ||
ncplib_kernel.h | ||
ncpsign_kernel.c | ||
ncpsign_kernel.h | ||
sock.c | ||
symlink.c |