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| author | Ronnie Sahlberg <lsahlber@redhat.com> | 2021-03-09 09:07:30 +1000 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2021-04-25 16:28:23 -0500 |
| commit | 269f67e1ffead61777b1b0cf2ea0f61d06f8c56d (patch) | |
| tree | 25800d121bcc16a69448c4aa33fb2e4c85c4daa6 /fs/cifs/cifsfs.c | |
| parent | 45c0f1aabea9e6acc5332b93faca9803c6e9b19a (diff) | |
| download | linux-rpi-269f67e1ffead61777b1b0cf2ea0f61d06f8c56d.tar.gz linux-rpi-269f67e1ffead61777b1b0cf2ea0f61d06f8c56d.tar.bz2 linux-rpi-269f67e1ffead61777b1b0cf2ea0f61d06f8c56d.zip | |
cifs: store a pointer to the root dentry in cifs_sb_info once we have completed mounting the share
And use this to only allow to take out a shared handle once the mount has completed and the
sb becomes available.
This will become important in follow up patches where we will start holding a reference to the
directory dentry for the shared handle during the lifetime of the handle.
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/cifs/cifsfs.c')
| -rw-r--r-- | fs/cifs/cifsfs.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 8dc2306c9092..cf8eceb1d5a5 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -257,6 +257,12 @@ out_no_root: static void cifs_kill_sb(struct super_block *sb) { struct cifs_sb_info *cifs_sb = CIFS_SB(sb); + + if (cifs_sb->root) { + dput(cifs_sb->root); + cifs_sb->root = NULL; + } + kill_anon_super(sb); cifs_umount(cifs_sb); } @@ -886,6 +892,9 @@ cifs_smb3_do_mount(struct file_system_type *fs_type, if (IS_ERR(root)) goto out_super; + if (cifs_sb) + cifs_sb->root = dget(root); + cifs_dbg(FYI, "dentry root is: %p\n", root); return root; |