diff options
Diffstat (limited to 'include/loopdev.h')
| -rw-r--r-- | include/loopdev.h | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/include/loopdev.h b/include/loopdev.h index 903adc4..d10bf7f 100644 --- a/include/loopdev.h +++ b/include/loopdev.h @@ -112,7 +112,8 @@ struct loopdev_cxt { char device[128]; /* device path (e.g. /dev/loop<N>) */ char *filename; /* backing file for loopcxt_set_... */ int fd; /* open(/dev/looo<N>) */ - int mode; /* fd mode O_{RDONLY,RDWR} */ + dev_t devno; /* loop device devno from /sys */ + mode_t mode; /* fd mode O_{RDONLY,RDWR} */ uint64_t blocksize; /* used by loopcxt_setup_device() */ int flags; /* LOOPDEV_FL_* flags */ @@ -120,9 +121,10 @@ struct loopdev_cxt { unsigned int extra_check:1; /* unusual stuff for iterator */ unsigned int info_failed:1; /* LOOP_GET_STATUS ioctl failed */ unsigned int control_ok:1; /* /dev/loop-control success */ + unsigned int is_lost:1; /* device in /sys, but missing in /dev */ struct path_cxt *sysfs; /* pointer to /sys/dev/block/<maj:min>/ */ - struct loop_config config; /* for GET/SET ioctl */ + struct loop_config config; /* for GET/SET ioctl */ struct loopdev_iter iter; /* scans /sys or /dev for used/free devices */ }; @@ -132,8 +134,6 @@ struct loopdev_cxt { * loopdev_cxt.flags */ enum { - LOOPDEV_FL_RDONLY = (1 << 0), /* open(/dev/loop) mode; default */ - LOOPDEV_FL_RDWR = (1 << 1), /* necessary for loop setup only */ LOOPDEV_FL_OFFSET = (1 << 4), LOOPDEV_FL_NOSYSFS = (1 << 5), LOOPDEV_FL_NOIOCTL = (1 << 6), @@ -151,7 +151,9 @@ extern int is_loopdev(const char *device); extern int loopdev_is_autoclear(const char *device); extern char *loopdev_get_backing_file(const char *device); +extern dev_t loopcxt_get_devno(struct loopdev_cxt *lc); extern int loopdev_has_backing_file(const char *device); +extern int loopcxt_is_lost(struct loopdev_cxt *lc); extern int loopdev_is_used(const char *device, const char *filename, uint64_t offset, uint64_t sizelimit, int flags); extern char *loopdev_find_by_backing_file(const char *filename, @@ -176,7 +178,7 @@ extern const char *loopcxt_get_device(struct loopdev_cxt *lc); extern struct loop_info64 *loopcxt_get_info(struct loopdev_cxt *lc); extern int loopcxt_get_fd(struct loopdev_cxt *lc); -extern int loopcxt_set_fd(struct loopdev_cxt *lc, int fd, int mode); +extern int loopcxt_set_fd(struct loopdev_cxt *lc, int fd, mode_t mode); extern int loopcxt_init_iterator(struct loopdev_cxt *lc, int flags); extern int loopcxt_deinit_iterator(struct loopdev_cxt *lc); @@ -195,8 +197,10 @@ int loopcxt_set_sizelimit(struct loopdev_cxt *lc, uint64_t sizelimit); int loopcxt_set_blocksize(struct loopdev_cxt *lc, uint64_t blocksize); int loopcxt_set_flags(struct loopdev_cxt *lc, uint32_t flags); int loopcxt_set_backing_file(struct loopdev_cxt *lc, const char *filename); +int loopcxt_set_refname(struct loopdev_cxt *lc, const char *refname); extern char *loopcxt_get_backing_file(struct loopdev_cxt *lc); +extern char *loopcxt_get_refname(struct loopdev_cxt *lc); extern int loopcxt_get_backing_devno(struct loopdev_cxt *lc, dev_t *devno); extern int loopcxt_get_backing_inode(struct loopdev_cxt *lc, ino_t *ino); extern int loopcxt_get_offset(struct loopdev_cxt *lc, uint64_t *offset); |