diff options
Diffstat (limited to 'hw/9pfs/9p-util.h')
| -rw-r--r-- | hw/9pfs/9p-util.h | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/hw/9pfs/9p-util.h b/hw/9pfs/9p-util.h index 91299a24b8..dc0d2e29aa 100644 --- a/hw/9pfs/9p-util.h +++ b/hw/9pfs/9p-util.h @@ -13,6 +13,12 @@ #ifndef QEMU_9P_UTIL_H #define QEMU_9P_UTIL_H +#ifdef O_PATH +#define O_PATH_9P_UTIL O_PATH +#else +#define O_PATH_9P_UTIL 0 +#endif + static inline void close_preserve_errno(int fd) { int serrno = errno; @@ -22,13 +28,8 @@ static inline void close_preserve_errno(int fd) static inline int openat_dir(int dirfd, const char *name) { -#ifdef O_PATH -#define OPENAT_DIR_O_PATH O_PATH -#else -#define OPENAT_DIR_O_PATH 0 -#endif return openat(dirfd, name, - O_DIRECTORY | O_RDONLY | O_NOFOLLOW | OPENAT_DIR_O_PATH); + O_DIRECTORY | O_RDONLY | O_NOFOLLOW | O_PATH_9P_UTIL); } static inline int openat_file(int dirfd, const char *name, int flags, @@ -43,9 +44,14 @@ static inline int openat_file(int dirfd, const char *name, int flags, } serrno = errno; - /* O_NONBLOCK was only needed to open the file. Let's drop it. */ - ret = fcntl(fd, F_SETFL, flags); - assert(!ret); + /* O_NONBLOCK was only needed to open the file. Let's drop it. We don't + * do that with O_PATH since fcntl(F_SETFL) isn't supported, and openat() + * ignored it anyway. + */ + if (!(flags & O_PATH_9P_UTIL)) { + ret = fcntl(fd, F_SETFL, flags); + assert(!ret); + } errno = serrno; return fd; } |