On 11.08.2017 11:51, Konstantin Khorenko wrote: > ve->mnt_nr can get unbalanced due to inc and dec in different VE context and > even wrong because it's not atomic and not protected by any lock. > > This patchset: > * makes ve->mnt_nr atomic > * defines min/max limits for "fs.ve-mount-nr" sysctl > * add VE reference to struct mount to always use proper VE context on mnt free > > https://jira.sw.ru/browse/PSBM-69880 > > Test is written: > https://jira.sw.ru/browse/PSBM-21089 > > Konstantin Khorenko (3): > ve/fs: convert per-VE number of currently mounted fs to atomic_t > ve/fs: limit "fs.ve-mount-nr" sysctl with INT_MAX > ve/fs/mount: pin mnt to a VE for correct number of mounts accounting
Reviewed-by: Kirill Tkhai <ktk...@virtuozzo.com> > fs/mount.h | 3 +++ > fs/namespace.c | 41 ++++++++++++++++++++++++++++++++++++++--- > include/linux/ve.h | 26 +------------------------- > kernel/ve/ve.c | 4 ++-- > kernel/ve/veowner.c | 6 +++++- > 5 files changed, 49 insertions(+), 31 deletions(-) > _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel
