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author | Christoph Hellwig <hch@lst.de> | 2020-07-23 08:23:08 +0200 |
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committer | Christoph Hellwig <hch@lst.de> | 2020-07-31 08:17:51 +0200 |
commit | 09267defa36aaff6ff829bd2fc8b043ec151cc3e (patch) | |
tree | 112707b95369bc1db23f2b60c2f286135d7b69fe /fs/init.c | |
parent | c60166f04283ffba7b88b45d824bbfb2bfccee24 (diff) | |
download | linux-stable-09267defa36aaff6ff829bd2fc8b043ec151cc3e.tar.gz linux-stable-09267defa36aaff6ff829bd2fc8b043ec151cc3e.tar.bz2 linux-stable-09267defa36aaff6ff829bd2fc8b043ec151cc3e.zip |
init: add an init_umount helper
Like ksys_umount, but takes a kernel pointer for the destination path.
Switch over the umount in the init code, which just happen to work due to
the implicit set_fs(KERNEL_DS) during early init right now.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/init.c')
-rw-r--r-- | fs/init.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/fs/init.c b/fs/init.c index c6eb724e1c7b..9c8e31fdb048 100644 --- a/fs/init.c +++ b/fs/init.c @@ -23,3 +23,17 @@ int __init init_mount(const char *dev_name, const char *dir_name, path_put(&path); return ret; } + +int __init init_umount(const char *name, int flags) +{ + int lookup_flags = LOOKUP_MOUNTPOINT; + struct path path; + int ret; + + if (!(flags & UMOUNT_NOFOLLOW)) + lookup_flags |= LOOKUP_FOLLOW; + ret = kern_path(name, lookup_flags, &path); + if (ret) + return ret; + return path_umount(&path, flags); +} |