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| author | Karel Zak | 2012-09-18 11:40:44 +0200 |
|---|---|---|
| committer | Karel Zak | 2012-09-18 11:40:44 +0200 |
| commit | e8cd1819675bdda61d7edee6d951bf9f2b5d9091 (patch) | |
| tree | 5f9e084172f1bf6d405efcd95d1a9f9fd1e5709e /libmount/src/context_loopdev.c | |
| parent | libmount: detach loopdev on umount if loop option in mtab (diff) | |
| download | kernel-qcow2-util-linux-e8cd1819675bdda61d7edee6d951bf9f2b5d9091.tar.gz kernel-qcow2-util-linux-e8cd1819675bdda61d7edee6d951bf9f2b5d9091.tar.xz kernel-qcow2-util-linux-e8cd1819675bdda61d7edee6d951bf9f2b5d9091.zip | |
libmount: append loop option when automatically create loopdev
The loop option is optional, mount(8) is able to detect that the
source path is regular file (image) with known filesystem -- then a
loop device is automatically created. In this case we have to store
"loop" option to mtab on systems without autoclear loopdev flag.
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'libmount/src/context_loopdev.c')
| -rw-r--r-- | libmount/src/context_loopdev.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/libmount/src/context_loopdev.c b/libmount/src/context_loopdev.c index 532057870..fc8da9fe7 100644 --- a/libmount/src/context_loopdev.c +++ b/libmount/src/context_loopdev.c @@ -60,8 +60,12 @@ int mnt_context_is_loopdev(struct libmnt_context *cxt) struct stat st; if (stat(src, &st) == 0 && S_ISREG(st.st_mode) && - st.st_size > 1024) + st.st_size > 1024) { + DBG(CXT, mnt_debug_h(cxt, "automatically enabling loop= option")); + cxt->user_mountflags |= MNT_MS_LOOP; + mnt_optstr_append_option(&cxt->fs->user_optstr, "loop", NULL); return 1; + } } return 0; |