On Thu, 2017-04-06 at 07:23 -0400, Benjamin Coddington wrote: > Set FL_CLOSE in fl_flags as in locks_remove_posix() when clearing locks. > NFS will check for this flag to ensure an unlock is sent in a following > patch. > > Fuse handles flock and posix locks differently for FL_CLOSE, and so > requires a fixup to retain the existing behavior for flock. > > Signed-off-by: Benjamin Coddington <bcodding@xxxxxxxxxx> > --- > fs/fuse/file.c | 2 +- > fs/locks.c | 2 +- > include/linux/fs.h | 2 ++ > 3 files changed, 4 insertions(+), 2 deletions(-) > > diff --git a/fs/fuse/file.c b/fs/fuse/file.c > index 2401c5dabb2a..79e1a3a048a8 100644 > --- a/fs/fuse/file.c > +++ b/fs/fuse/file.c > @@ -2172,7 +2172,7 @@ static int fuse_setlk(struct file *file, struct file_lock *fl, int flock) > } > > /* Unlock on close is handled by the flush method */ > - if (fl->fl_flags & FL_CLOSE) > + if (fl->fl_flags & FL_CLOSE_POSIX == FL_CLOSE_POSIX) > return 0; > > fuse_lk_fill(&args, file, fl, opcode, pid, flock, &inarg); > diff --git a/fs/locks.c b/fs/locks.c > index 26811321d39b..af2031a1fcff 100644 > --- a/fs/locks.c > +++ b/fs/locks.c > @@ -2504,7 +2504,7 @@ locks_remove_flock(struct file *filp, struct file_lock_context *flctx) > .fl_owner = filp, > .fl_pid = current->tgid, > .fl_file = filp, > - .fl_flags = FL_FLOCK, > + .fl_flags = FL_FLOCK | FL_CLOSE, > .fl_type = F_UNLCK, > .fl_end = OFFSET_MAX, > }; > diff --git a/include/linux/fs.h b/include/linux/fs.h > index 2ba074328894..e964ae0a9c29 100644 > --- a/include/linux/fs.h > +++ b/include/linux/fs.h > @@ -903,6 +903,8 @@ static inline struct file *get_file(struct file *f) > #define FL_OFDLCK 1024 /* lock is "owned" by struct file */ > #define FL_LAYOUT 2048 /* outstanding pNFS layout */ > > +#define FL_CLOSE_POSIX (FL_POSIX | FL_CLOSE) > + > /* > * Special return value from posix_lock_file() and vfs_lock_file() for > * asynchronous locking. Reviewed-by: Jeff Layton <jlayton@xxxxxxxxxx>
