* [PATCH] afs: Fix the nlink handling of dir-over-dir rename
@ 2021-05-27 10:24 David Howells
0 siblings, 0 replies; 3+ messages in thread
From: David Howells @ 2021-05-27 10:24 UTC (permalink / raw)
To: torvalds; +Cc: Marc Dionne, linux-afs, dhowells, linux-fsdevel, linux-kernel
Fix rename of one directory over another such that the nlink on the deleted
directory is cleared to 0 rather than being decremented to 1.
This was causing the generic/035 xfstest to fail.
Fixes: e49c7b2f6de7 ("afs: Build an abstraction around an "operation" concept")
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Link: https://lore.kernel.org/r/162194384460.3999479.7605572278074191079.stgit@warthog.procyon.org.uk/ # v1
---
fs/afs/dir.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/afs/dir.c b/fs/afs/dir.c
index 9fbe5a5ec9bd..78719f2f567e 100644
--- a/fs/afs/dir.c
+++ b/fs/afs/dir.c
@@ -1919,7 +1919,9 @@ static void afs_rename_edit_dir(struct afs_operation *op)
new_inode = d_inode(new_dentry);
if (new_inode) {
spin_lock(&new_inode->i_lock);
- if (new_inode->i_nlink > 0)
+ if (S_ISDIR(new_inode->i_mode))
+ clear_nlink(new_inode);
+ else if (new_inode->i_nlink > 0)
drop_nlink(new_inode);
spin_unlock(&new_inode->i_lock);
}
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] afs: Fix the nlink handling of dir-over-dir rename
2021-05-25 11:57 David Howells
@ 2021-05-25 17:26 ` Marc Dionne
0 siblings, 0 replies; 3+ messages in thread
From: Marc Dionne @ 2021-05-25 17:26 UTC (permalink / raw)
To: David Howells; +Cc: linux-afs, linux-fsdevel, Linux Kernel Mailing List
On Tue, May 25, 2021 at 8:57 AM David Howells <dhowells@redhat.com> wrote:
>
> Fix rename of one directory over another such that the nlink on the deleted
> directory is cleared to 0 rather than being decremented to 1.
>
> This was causing the generic/035 xfstest to fail.
>
> Fixes: e49c7b2f6de7 ("afs: Build an abstraction around an "operation" concept")
> Signed-off-by: David Howells <dhowells@redhat.com>
> cc: linux-afs@lists.infradead.org
> ---
>
> fs/afs/dir.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/fs/afs/dir.c b/fs/afs/dir.c
> index 9fbe5a5ec9bd..78719f2f567e 100644
> --- a/fs/afs/dir.c
> +++ b/fs/afs/dir.c
> @@ -1919,7 +1919,9 @@ static void afs_rename_edit_dir(struct afs_operation *op)
> new_inode = d_inode(new_dentry);
> if (new_inode) {
> spin_lock(&new_inode->i_lock);
> - if (new_inode->i_nlink > 0)
> + if (S_ISDIR(new_inode->i_mode))
> + clear_nlink(new_inode);
> + else if (new_inode->i_nlink > 0)
> drop_nlink(new_inode);
> spin_unlock(&new_inode->i_lock);
> }
Reviewed-by: Marc Dionne <marc.dionne@auristor.com>
Marc
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH] afs: Fix the nlink handling of dir-over-dir rename
@ 2021-05-25 11:57 David Howells
2021-05-25 17:26 ` Marc Dionne
0 siblings, 1 reply; 3+ messages in thread
From: David Howells @ 2021-05-25 11:57 UTC (permalink / raw)
To: linux-afs; +Cc: dhowells, linux-fsdevel, linux-kernel
Fix rename of one directory over another such that the nlink on the deleted
directory is cleared to 0 rather than being decremented to 1.
This was causing the generic/035 xfstest to fail.
Fixes: e49c7b2f6de7 ("afs: Build an abstraction around an "operation" concept")
Signed-off-by: David Howells <dhowells@redhat.com>
cc: linux-afs@lists.infradead.org
---
fs/afs/dir.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/afs/dir.c b/fs/afs/dir.c
index 9fbe5a5ec9bd..78719f2f567e 100644
--- a/fs/afs/dir.c
+++ b/fs/afs/dir.c
@@ -1919,7 +1919,9 @@ static void afs_rename_edit_dir(struct afs_operation *op)
new_inode = d_inode(new_dentry);
if (new_inode) {
spin_lock(&new_inode->i_lock);
- if (new_inode->i_nlink > 0)
+ if (S_ISDIR(new_inode->i_mode))
+ clear_nlink(new_inode);
+ else if (new_inode->i_nlink > 0)
drop_nlink(new_inode);
spin_unlock(&new_inode->i_lock);
}
^ permalink raw reply related [flat|nested] 3+ messages in thread
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2021-05-25 11:57 David Howells
2021-05-25 17:26 ` Marc Dionne
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