diff options
| author | David Howells | 2022-12-06 13:49:42 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2023-05-11 23:03:38 +0900 |
| commit | 7b6ccf752a115399576e42a88494d27389af595f (patch) | |
| tree | 71c5d4f567a5eb2410ac87b48d6653afe46c1a8a /fs/afs | |
| parent | 2cfce11132e48e32152a8aea58e83fc3fd62890a (diff) | |
afs: Fix getattr to report server i_size on dirs, not local size
[ Upstream commit 45f66fa03ba9943cca5af88d691399332b8bde08 ]
Fix afs_getattr() to report the server's idea of the file size of a
directory rather than the local size. The local size may differ as we edit
the local copy to avoid having to redownload it and we may end up with a
differently structured blob of a different size.
However, if the directory is discarded from the pagecache we then download
it again and the user may see the directory file size apparently change.
Fixes: 63a4681ff39c ("afs: Locally edit directory data for mkdir/create/unlink/...")
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'fs/afs')
| -rw-r--r-- | fs/afs/inode.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/afs/inode.c b/fs/afs/inode.c index 52d040ffde35..5921dd3687e3 100644 --- a/fs/afs/inode.c +++ b/fs/afs/inode.c @@ -450,7 +450,7 @@ static void afs_get_inode_cache(struct afs_vnode *vnode) 0 : FSCACHE_ADV_SINGLE_CHUNK, &key, sizeof(key), &aux, sizeof(aux), - vnode->status.size)); + i_size_read(&vnode->netfs.inode))); #endif } @@ -766,6 +766,13 @@ int afs_getattr(struct user_namespace *mnt_userns, const struct path *path, if (test_bit(AFS_VNODE_SILLY_DELETED, &vnode->flags) && stat->nlink > 0) stat->nlink -= 1; + + /* Lie about the size of directories. We maintain a locally + * edited copy and may make different allocation decisions on + * it, but we need to give userspace the server's size. + */ + if (S_ISDIR(inode->i_mode)) + stat->size = vnode->netfs.remote_i_size; } while (need_seqretry(&vnode->cb_lock, seq)); done_seqretry(&vnode->cb_lock, seq); |