diff options
| author | Karel Zak | 2011-12-20 18:25:04 +0100 |
|---|---|---|
| committer | Karel Zak | 2011-12-22 12:19:38 +0100 |
| commit | 6c224de18bfa7c652e07685d0450e0984b27ee86 (patch) | |
| tree | 34b6eec715e6c26d797f01cab94ced1e08bf5dd6 /include/loopdev.h | |
| parent | libblkid; fix memory leak in blkid_probe_get_wholedisk_probe() (diff) | |
| download | kernel-qcow2-util-linux-6c224de18bfa7c652e07685d0450e0984b27ee86.tar.gz kernel-qcow2-util-linux-6c224de18bfa7c652e07685d0450e0984b27ee86.tar.xz kernel-qcow2-util-linux-6c224de18bfa7c652e07685d0450e0984b27ee86.zip | |
lib,loopdev: add missing functions
- improve loop_info usage (don't call ioctl more than once)
- add functions to get devno and inode of the backing file
- add function for compare any file with backing file by devno + inode
or by filename
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'include/loopdev.h')
| -rw-r--r-- | include/loopdev.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/loopdev.h b/include/loopdev.h index e675dab91..27f9668eb 100644 --- a/include/loopdev.h +++ b/include/loopdev.h @@ -96,6 +96,7 @@ struct loopdev_cxt { unsigned int has_info:1; /* .info contains data */ unsigned int extra_check:1; /* unusual stuff for iterator */ unsigned int debug:1; /* debug mode ON/OFF */ + unsigned int info_failed:1; /* LOOP_GET_STATUS ioctl failed */ struct sysfs_cxt sysfs; /* pointer to /sys/dev/block/<maj:min>/ */ struct loop_info64 info; /* for GET/SET ioctl */ @@ -120,6 +121,7 @@ enum { */ 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 int loopdev_is_used(const char *device, const char *filename, uint64_t offset, int flags); @@ -161,12 +163,22 @@ int loopcxt_set_encryption(struct loopdev_cxt *lc, const char *password); extern char *loopcxt_get_backing_file(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); extern int loopcxt_get_sizelimit(struct loopdev_cxt *lc, uint64_t *size); +extern int loopcxt_get_encrypt_type(struct loopdev_cxt *lc, uint32_t *type); +extern const char *loopcxt_get_crypt_name(struct loopdev_cxt *lc); extern int loopcxt_is_autoclear(struct loopdev_cxt *lc); extern int loopcxt_is_readonly(struct loopdev_cxt *lc); extern int loopcxt_find_by_backing_file(struct loopdev_cxt *lc, const char *filename, uint64_t offset, int flags); +extern int loopcxt_is_used(struct loopdev_cxt *lc, + struct stat *st, + const char *backing_file, + uint64_t offset, + int flags); + #endif /* UTIL_LINUX_LOOPDEV_H */ |