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| author | Karel Zak | 2010-12-01 14:04:35 +0100 |
|---|---|---|
| committer | Karel Zak | 2010-12-01 14:04:35 +0100 |
| commit | b61e939013282d8da2fbc2dc60c2cb4e58b8ab17 (patch) | |
| tree | 12ccaa865bde2b30c138bcd974f530979404cb31 /include/pathnames.h | |
| parent | lscpu: use GPLv2+ (diff) | |
| download | kernel-qcow2-util-linux-b61e939013282d8da2fbc2dc60c2cb4e58b8ab17.tar.gz kernel-qcow2-util-linux-b61e939013282d8da2fbc2dc60c2cb4e58b8ab17.tar.xz kernel-qcow2-util-linux-b61e939013282d8da2fbc2dc60c2cb4e58b8ab17.zip | |
losetup: use /sys/dev/block/.../loop/backing_file
The basic loopdev attributes are available in sysfs since kernel
2.6.37. This patch uses the backing_file attribute from sysfs for very
long filenames (the LOOP_GET_STATUS ioctl uses only 64 bytes for the
filename).
old version:
# losetup -a
/dev/loop0: [0804]:12865322 (/home/images/filesystems/this_is_really_really_long_directory_*)
new version:
# losetup -a
/dev/loop0: [0804]:12865322 (/home/images/filesystems/this_is_really_really_long_directory_name/ext2.img)
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'include/pathnames.h')
| -rw-r--r-- | include/pathnames.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/pathnames.h b/include/pathnames.h index c0572954e..efbd6a65c 100644 --- a/include/pathnames.h +++ b/include/pathnames.h @@ -82,6 +82,7 @@ #define _PATH_PROC_MOUNTINFO "/proc/self/mountinfo" #define _PATH_SYS_BLOCK "/sys/block" +#define _PATH_SYS_DEVBLOCK "/sys/dev/block" #ifndef _PATH_MOUNTED # ifdef MOUNTED /* deprecated */ |