aboutsummaryrefslogtreecommitdiffstats
path: root/ipc
diff options
context:
space:
mode:
authorShailesh Pandey <p.shailesh@samsung.com>2016-12-14 15:06:10 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-12-14 16:04:08 -0800
commit63980c80e1e99cb324942f3b5e59657025af47c0 (patch)
treecb159edf5137bfb5e542e64264a4e4de49602a69 /ipc
parent999898355e08ae3b92dfd0a08db706e0c6703d30 (diff)
ipc/shm.c: coding style fixes
This patch fixes below warnings: WARNING: Missing a blank line after declarations WARNING: Block comments use a trailing */ on a separate line ERROR: spaces required around that '=' (ctx:WxV) Above warnings were reported by checkpatch.pl Link: http://lkml.kernel.org/r/1478604980-18062-1-git-send-email-p.shailesh@samsung.com Signed-off-by: Shailesh Pandey <p.shailesh@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'ipc')
-rw-r--r--ipc/shm.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/ipc/shm.c b/ipc/shm.c
index dbac8860c721..81203e8ba013 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -89,6 +89,7 @@ void shm_init_ns(struct ipc_namespace *ns)
static void do_shm_rmid(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp)
{
struct shmid_kernel *shp;
+
shp = container_of(ipcp, struct shmid_kernel, shm_perm);
if (shp->shm_nattch) {
@@ -387,6 +388,7 @@ static int shm_set_policy(struct vm_area_struct *vma, struct mempolicy *new)
struct file *file = vma->vm_file;
struct shm_file_data *sfd = shm_file_data(file);
int err = 0;
+
if (sfd->vm_ops->set_policy)
err = sfd->vm_ops->set_policy(vma, new);
return err;
@@ -417,7 +419,7 @@ static int shm_mmap(struct file *file, struct vm_area_struct *vma)
* In case of remap_file_pages() emulation, the file can represent
* removed IPC ID: propogate shm_lock() error to caller.
*/
- ret =__shm_open(vma);
+ ret = __shm_open(vma);
if (ret)
return ret;
@@ -468,6 +470,7 @@ static unsigned long shm_get_unmapped_area(struct file *file,
unsigned long flags)
{
struct shm_file_data *sfd = shm_file_data(file);
+
return sfd->file->f_op->get_unmapped_area(sfd->file, addr, len,
pgoff, flags);
}
@@ -766,6 +769,7 @@ static void shm_add_rss_swap(struct shmid_kernel *shp,
} else {
#ifdef CONFIG_SHMEM
struct shmem_inode_info *info = SHMEM_I(inode);
+
spin_lock_irq(&info->lock);
*rss_add += inode->i_mapping->nrpages;
*swp_add += info->swapped;
@@ -1028,6 +1032,7 @@ SYSCALL_DEFINE3(shmctl, int, shmid, int, cmd, struct shmid_ds __user *, buf)
if (!ns_capable(ns->user_ns, CAP_IPC_LOCK)) {
kuid_t euid = current_euid();
+
if (!uid_eq(euid, shp->shm_perm.uid) &&
!uid_eq(euid, shp->shm_perm.cuid)) {
err = -EPERM;
@@ -1045,6 +1050,7 @@ SYSCALL_DEFINE3(shmctl, int, shmid, int, cmd, struct shmid_ds __user *, buf)
if (cmd == SHM_LOCK) {
struct user_struct *user = current_user();
+
err = shmem_lock(shm_file, 1, user);
if (!err && !(shp->shm_perm.mode & SHM_LOCKED)) {
shp->shm_perm.mode |= SHM_LOCKED;
@@ -1354,9 +1360,10 @@ SYSCALL_DEFINE1(shmdt, char __user *, shmaddr)
vma = next;
}
-#else /* CONFIG_MMU */
+#else /* CONFIG_MMU */
/* under NOMMU conditions, the exact address to be destroyed must be
- * given */
+ * given
+ */
if (vma && vma->vm_start == addr && vma->vm_ops == &shm_vm_ops) {
do_munmap(mm, vma->vm_start, vma->vm_end - vma->vm_start);
retval = 0;

Privacy Policy