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authorArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2009-09-21 12:09:22 +0300
committerArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2009-09-21 12:09:22 +0300
commit7cce2f4cb7f5f641f78c8e3eea4e7b1b96cb71c0 (patch)
treeb064d077928cf224660ab1e1841cdab2c9fd8b08 /ipc
parente055f7e873d900925c222cf2d1ec955af4a9ca90 (diff)
parentebc79c4f8da0f92efa968e0328f32334a2ce80cf (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into linux-next
Conflicts: fs/ubifs/super.c Merge the upstream tree in order to resolve a conflict with the per-bdi writeback changes from the linux-2.6-block tree.
Diffstat (limited to 'ipc')
-rw-r--r--ipc/shm.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/ipc/shm.c b/ipc/shm.c
index 15dd238e533..30162a59621 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -174,7 +174,7 @@ static void shm_destroy(struct ipc_namespace *ns, struct shmid_kernel *shp)
shm_unlock(shp);
if (!is_file_hugepages(shp->shm_file))
shmem_lock(shp->shm_file, 0, shp->mlock_user);
- else
+ else if (shp->mlock_user)
user_shm_unlock(shp->shm_file->f_path.dentry->d_inode->i_size,
shp->mlock_user);
fput (shp->shm_file);
@@ -369,8 +369,8 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
/* hugetlb_file_setup applies strict accounting */
if (shmflg & SHM_NORESERVE)
acctflag = VM_NORESERVE;
- file = hugetlb_file_setup(name, size, acctflag);
- shp->mlock_user = current_user();
+ file = hugetlb_file_setup(name, size, acctflag,
+ &shp->mlock_user);
} else {
/*
* Do not allow no accounting for OVERCOMMIT_NEVER, even
@@ -410,6 +410,8 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
return error;
no_id:
+ if (is_file_hugepages(file) && shp->mlock_user)
+ user_shm_unlock(size, shp->mlock_user);
fput(file);
no_file:
security_shm_free(shp);