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authorgVisor bot <gvisor-bot@google.com>2020-06-17 17:07:17 +0000
committergVisor bot <gvisor-bot@google.com>2020-06-17 17:07:17 +0000
commit82621396212fecc1b57207192a34424491333c5a (patch)
treeb1f1ab02cda0878677fc5ce55b75a30a6cba9e13 /pkg/sentry/fsimpl/tmpfs
parentf7a93e64341c0ffe1c239b633051d8172b0b04b3 (diff)
parent96519e2c9d3fa1f15537c4dfc081a19d8d1ce1a2 (diff)
Merge release-20200608.0-69-g96519e2c9 (automated)
Diffstat (limited to 'pkg/sentry/fsimpl/tmpfs')
-rw-r--r--pkg/sentry/fsimpl/tmpfs/tmpfs.go15
1 files changed, 13 insertions, 2 deletions
diff --git a/pkg/sentry/fsimpl/tmpfs/tmpfs.go b/pkg/sentry/fsimpl/tmpfs/tmpfs.go
index 71a7522af..d0a3e1a5c 100644
--- a/pkg/sentry/fsimpl/tmpfs/tmpfs.go
+++ b/pkg/sentry/fsimpl/tmpfs/tmpfs.go
@@ -36,11 +36,11 @@ import (
"gvisor.dev/gvisor/pkg/abi/linux"
"gvisor.dev/gvisor/pkg/context"
+ fslock "gvisor.dev/gvisor/pkg/sentry/fs/lock"
"gvisor.dev/gvisor/pkg/sentry/kernel/auth"
"gvisor.dev/gvisor/pkg/sentry/kernel/time"
"gvisor.dev/gvisor/pkg/sentry/pgalloc"
"gvisor.dev/gvisor/pkg/sentry/vfs"
- "gvisor.dev/gvisor/pkg/sentry/vfs/lock"
"gvisor.dev/gvisor/pkg/sentry/vfs/memxattr"
"gvisor.dev/gvisor/pkg/sync"
"gvisor.dev/gvisor/pkg/syserror"
@@ -310,7 +310,7 @@ type inode struct {
ctime int64 // nanoseconds
mtime int64 // nanoseconds
- locks lock.FileLocks
+ locks vfs.FileLocks
// Inotify watches for this inode.
watches vfs.Watches
@@ -761,9 +761,20 @@ func NewMemfd(mount *vfs.Mount, creds *auth.Credentials, allowSeals bool, name s
// Per Linux, mm/shmem.c:__shmem_file_setup(), memfd files are set up with
// FMODE_READ | FMODE_WRITE.
var fd regularFileFD
+ fd.Init(&inode.locks)
flags := uint32(linux.O_RDWR)
if err := fd.vfsfd.Init(&fd, flags, mount, &d.vfsd, &vfs.FileDescriptionOptions{}); err != nil {
return nil, err
}
return &fd.vfsfd, nil
}
+
+// LockPOSIX implements vfs.FileDescriptionImpl.LockPOSIX.
+func (fd *fileDescription) LockPOSIX(ctx context.Context, uid fslock.UniqueID, t fslock.LockType, start, length uint64, whence int16, block fslock.Blocker) error {
+ return fd.Locks().LockPOSIX(ctx, &fd.vfsfd, uid, t, start, length, whence, block)
+}
+
+// UnlockPOSIX implements vfs.FileDescriptionImpl.UnlockPOSIX.
+func (fd *fileDescription) UnlockPOSIX(ctx context.Context, uid fslock.UniqueID, start, length uint64, whence int16) error {
+ return fd.Locks().UnlockPOSIX(ctx, &fd.vfsfd, uid, start, length, whence)
+}