diff options
Diffstat (limited to 'fs/fcntl.c')
| -rw-r--r-- | fs/fcntl.c | 42 |
1 files changed, 27 insertions, 15 deletions
diff --git a/fs/fcntl.c b/fs/fcntl.c index 65343c3741f..72c82f69b01 100644 --- a/fs/fcntl.c +++ b/fs/fcntl.c @@ -56,7 +56,7 @@ static int setfl(int fd, struct file * filp, unsigned long arg) return -EINVAL; } - if (filp->f_op && filp->f_op->check_flags) + if (filp->f_op->check_flags) error = filp->f_op->check_flags(arg); if (error) return error; @@ -64,8 +64,7 @@ static int setfl(int fd, struct file * filp, unsigned long arg) /* * ->fasync() is responsible for setting the FASYNC bit. */ - if (((arg ^ filp->f_flags) & FASYNC) && filp->f_op && - filp->f_op->fasync) { + if (((arg ^ filp->f_flags) & FASYNC) && filp->f_op->fasync) { error = filp->f_op->fasync(fd, filp, (arg & FASYNC) != 0); if (error < 0) goto out; @@ -273,9 +272,19 @@ static long do_fcntl(int fd, unsigned int cmd, unsigned long arg, case F_SETFL: err = setfl(fd, filp, arg); break; +#if BITS_PER_LONG != 32 + /* 32-bit arches must use fcntl64() */ + case F_OFD_GETLK: +#endif case F_GETLK: - err = fcntl_getlk(filp, (struct flock __user *) arg); + err = fcntl_getlk(filp, cmd, (struct flock __user *) arg); break; +#if BITS_PER_LONG != 32 + /* 32-bit arches must use fcntl64() */ + case F_OFD_SETLK: + case F_OFD_SETLKW: +#endif + /* Fallthrough */ case F_SETLK: case F_SETLKW: err = fcntl_setlk(fd, filp, cmd, (struct flock __user *) arg); @@ -389,17 +398,20 @@ SYSCALL_DEFINE3(fcntl64, unsigned int, fd, unsigned int, cmd, goto out1; switch (cmd) { - case F_GETLK64: - err = fcntl_getlk64(f.file, (struct flock64 __user *) arg); - break; - case F_SETLK64: - case F_SETLKW64: - err = fcntl_setlk64(fd, f.file, cmd, - (struct flock64 __user *) arg); - break; - default: - err = do_fcntl(fd, cmd, arg, f.file); - break; + case F_GETLK64: + case F_OFD_GETLK: + err = fcntl_getlk64(f.file, cmd, (struct flock64 __user *) arg); + break; + case F_SETLK64: + case F_SETLKW64: + case F_OFD_SETLK: + case F_OFD_SETLKW: + err = fcntl_setlk64(fd, f.file, cmd, + (struct flock64 __user *) arg); + break; + default: + err = do_fcntl(fd, cmd, arg, f.file); + break; } out1: fdput(f); |