mnt_drop_write() must be called only if mnt_want_write() succeeded, otherwise the mnt_writers counter will diverge.
Signed-off-by: Vladimir Davydov <[email protected]> Cc: Doug Ledford <[email protected]> Cc: Andrew Morton <[email protected]> Cc: KOSAKI Motohiro <[email protected]> Cc: "Eric W. Biederman" <[email protected]> --- ipc/mqueue.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/ipc/mqueue.c b/ipc/mqueue.c index e5c4f60..3953fda 100644 --- a/ipc/mqueue.c +++ b/ipc/mqueue.c @@ -840,7 +840,8 @@ out_putfd: fd = error; } mutex_unlock(&root->d_inode->i_mutex); - mnt_drop_write(mnt); + if (!ro) + mnt_drop_write(mnt); out_putname: putname(name); return fd; -- 1.7.1 _______________________________________________ Devel mailing list [email protected] https://lists.openvz.org/mailman/listinfo/devel
