diff options
Diffstat (limited to 'fs/fcntl.c')
| -rw-r--r-- | fs/fcntl.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/fcntl.c b/fs/fcntl.c index 0587a0e221a6..f6fde75a3bd5 100644 --- a/fs/fcntl.c +++ b/fs/fcntl.c @@ -414,6 +414,12 @@ static long f_dupfd_query(int fd, struct file *filp) return f.file == filp; } +/* Let the caller figure out whether a given file was just created. */ +static long f_created_query(const struct file *filp) +{ + return !!(filp->f_mode & FMODE_CREATED); +} + static int f_owner_sig(struct file *filp, int signum, bool setsig) { int ret = 0; @@ -447,6 +453,9 @@ static long do_fcntl(int fd, unsigned int cmd, unsigned long arg, long err = -EINVAL; switch (cmd) { + case F_CREATED_QUERY: + err = f_created_query(filp); + break; case F_DUPFD: err = f_dupfd(argi, filp, 0); break; @@ -553,6 +562,7 @@ static long do_fcntl(int fd, unsigned int cmd, unsigned long arg, static int check_fcntl_cmd(unsigned cmd) { switch (cmd) { + case F_CREATED_QUERY: case F_DUPFD: case F_DUPFD_CLOEXEC: case F_DUPFD_QUERY: |