* [PATCH] Fix match_prepath()
@ 2017-04-26 13:05 Sachin Prabhu
[not found] ` <20170426130546.4493-1-sprabhu-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
0 siblings, 1 reply; 3+ messages in thread
From: Sachin Prabhu @ 2017-04-26 13:05 UTC (permalink / raw)
To: linux-cifs
Incorrect return value for shares not using the prefix patch means that
we will never match superblocks for these shares.
Fixes: commit c1d8b24d1819 ("Compare prepaths when comparing superblocks")
Cc: stable-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Signed-off-by: Sachin Prabhu <sprabhu-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
---
fs/cifs/connect.c | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index d82467c..d95744d 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2912,16 +2912,14 @@ 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;
}
--
2.9.3
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] Fix match_prepath()
[not found] ` <20170426130546.4493-1-sprabhu-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
@ 2017-04-26 22:15 ` Pavel Shilovsky
[not found] ` <CAKywueQLpqdj9erZOPPbr-B6mROi6wPpBszASLoev8Uis-pr7w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
0 siblings, 1 reply; 3+ messages in thread
From: Pavel Shilovsky @ 2017-04-26 22:15 UTC (permalink / raw)
To: Sachin Prabhu; +Cc: linux-cifs
2017-04-26 6:05 GMT-07:00 Sachin Prabhu <sprabhu-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>:
> Incorrect return value for shares not using the prefix patch means that
> we will never match superblocks for these shares.
>
> Fixes: commit c1d8b24d1819 ("Compare prepaths when comparing superblocks")
> Cc: stable-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Signed-off-by: Sachin Prabhu <sprabhu-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> ---
> fs/cifs/connect.c | 14 ++++++--------
> 1 file changed, 6 insertions(+), 8 deletions(-)
>
> diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
> index d82467c..d95744d 100644
> --- a/fs/cifs/connect.c
> +++ b/fs/cifs/connect.c
> @@ -2912,16 +2912,14 @@ 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;
> }
>
> --
> 2.9.3
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-cifs" in
> the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
Reviewed-by: Pavel Shilovsky <pshilov-0li6OtcxBFHby3iVrkZq2A@public.gmane.org>
--
Best regards,
Pavel Shilovsky
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] Fix match_prepath()
[not found] ` <CAKywueQLpqdj9erZOPPbr-B6mROi6wPpBszASLoev8Uis-pr7w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
@ 2017-04-27 20:09 ` Steve French
0 siblings, 0 replies; 3+ messages in thread
From: Steve French @ 2017-04-27 20:09 UTC (permalink / raw)
To: Pavel Shilovsky; +Cc: Sachin Prabhu, linux-cifs
merged into cifs-2.6.git for-next
On Wed, Apr 26, 2017 at 5:15 PM, Pavel Shilovsky <piastryyy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> 2017-04-26 6:05 GMT-07:00 Sachin Prabhu <sprabhu-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>:
>> Incorrect return value for shares not using the prefix patch means that
>> we will never match superblocks for these shares.
>>
>> Fixes: commit c1d8b24d1819 ("Compare prepaths when comparing superblocks")
>> Cc: stable-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
>> Signed-off-by: Sachin Prabhu <sprabhu-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
>> ---
>> fs/cifs/connect.c | 14 ++++++--------
>> 1 file changed, 6 insertions(+), 8 deletions(-)
>>
>> diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
>> index d82467c..d95744d 100644
>> --- a/fs/cifs/connect.c
>> +++ b/fs/cifs/connect.c
>> @@ -2912,16 +2912,14 @@ 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;
>> }
>>
>> --
>> 2.9.3
>>
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-cifs" in
>> the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
> Reviewed-by: Pavel Shilovsky <pshilov-0li6OtcxBFHby3iVrkZq2A@public.gmane.org>
>
> --
> Best regards,
> Pavel Shilovsky
> --
> To unsubscribe from this list: send the line "unsubscribe linux-cifs" in
> the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
--
Thanks,
Steve
^ permalink raw reply [flat|nested] 3+ messages in thread
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2017-04-26 13:05 [PATCH] Fix match_prepath() Sachin Prabhu
[not found] ` <20170426130546.4493-1-sprabhu-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-04-26 22:15 ` Pavel Shilovsky
[not found] ` <CAKywueQLpqdj9erZOPPbr-B6mROi6wPpBszASLoev8Uis-pr7w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-04-27 20:09 ` Steve French
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