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| author | Sachin Prabhu <sprabhu@redhat.com> | 2017-04-26 16:05:46 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-05-20 15:31:01 +0300 |
| commit | b7174f40382813750fd2ef225cc0a5b19e9c89d4 (patch) | |
| tree | 10e48a8a22f9c552c33c138a15f9c6abbd0fa4d9 /fs | |
| parent | 93697e1e509948e16d588c93b39d38d7b144efe7 (diff) | |
| download | linux-b7174f40382813750fd2ef225cc0a5b19e9c89d4.tar.xz | |
Fix match_prepath()
commit cd8c42968ee651b69e00f8661caff32b0086e82d upstream.
Incorrect return value for shares not using the prefix path means that
we will never match superblocks for these shares.
Fixes: commit c1d8b24d1819 ("Compare prepaths when comparing superblocks")
Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/cifs/connect.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index acf7bc1eab77..cfb3b5a50005 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -2879,16 +2879,14 @@ match_prepath(struct super_block *sb, struct cifs_mnt_data *mnt_data) { struct cifs_sb_info *old = CIFS_SB(sb); struct cifs_sb_info *new = mnt_data->cifs_sb; + bool old_set = old->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH; + bool new_set = new->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH; - if (old->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH) { - if (!(new->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH)) - return 0; - /* The prepath should be null terminated strings */ - if (strcmp(new->prepath, old->prepath)) - return 0; - + if (old_set && new_set && !strcmp(new->prepath, old->prepath)) return 1; - } + else if (!old_set && !new_set) + return 1; + return 0; } |