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Diffstat (limited to 'pkg/sentry/fsimpl/tmpfs/tmpfs.go')
-rw-r--r--pkg/sentry/fsimpl/tmpfs/tmpfs.go15
1 files changed, 10 insertions, 5 deletions
diff --git a/pkg/sentry/fsimpl/tmpfs/tmpfs.go b/pkg/sentry/fsimpl/tmpfs/tmpfs.go
index de2af6d01..428f62aaa 100644
--- a/pkg/sentry/fsimpl/tmpfs/tmpfs.go
+++ b/pkg/sentry/fsimpl/tmpfs/tmpfs.go
@@ -340,8 +340,10 @@ func (i *inode) init(impl interface{}, fs *filesystem, kuid auth.KUID, kgid auth
// incLinksLocked increments i's link count.
//
-// Preconditions: filesystem.mu must be locked for writing. i.nlink != 0.
-// i.nlink < maxLinks.
+// Preconditions:
+// * filesystem.mu must be locked for writing.
+// * i.nlink != 0.
+// * i.nlink < maxLinks.
func (i *inode) incLinksLocked() {
if i.nlink == 0 {
panic("tmpfs.inode.incLinksLocked() called with no existing links")
@@ -355,7 +357,9 @@ func (i *inode) incLinksLocked() {
// decLinksLocked decrements i's link count. If the link count reaches 0, we
// remove a reference on i as well.
//
-// Preconditions: filesystem.mu must be locked for writing. i.nlink != 0.
+// Preconditions:
+// * filesystem.mu must be locked for writing.
+// * i.nlink != 0.
func (i *inode) decLinksLocked(ctx context.Context) {
if i.nlink == 0 {
panic("tmpfs.inode.decLinksLocked() called with no existing links")
@@ -594,8 +598,9 @@ func (i *inode) touchCMtime() {
i.mu.Unlock()
}
-// Preconditions: The caller has called vfs.Mount.CheckBeginWrite() and holds
-// inode.mu.
+// Preconditions:
+// * The caller has called vfs.Mount.CheckBeginWrite().
+// * inode.mu must be locked.
func (i *inode) touchCMtimeLocked() {
now := i.fs.clock.Now().Nanoseconds()
atomic.StoreInt64(&i.mtime, now)