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| author | David Howells <dhowells@redhat.com> | 2022-12-06 13:49:42 +0000 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2023-05-02 17:17:42 +0100 |
| commit | 45f66fa03ba9943cca5af88d691399332b8bde08 (patch) | |
| tree | f90477193e73bbe2e3d13c1fd0b6b551f752d444 /fs/afs/inode.c | |
| parent | d7f74e9a917503ee78f2b603a456d7227cf38919 (diff) | |
| download | linux-45f66fa03ba9943cca5af88d691399332b8bde08.tar.gz linux-45f66fa03ba9943cca5af88d691399332b8bde08.tar.bz2 linux-45f66fa03ba9943cca5af88d691399332b8bde08.zip | |
afs: Fix getattr to report server i_size on dirs, not local size
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
Diffstat (limited to 'fs/afs/inode.c')
| -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 82edd3351734..866bab860a88 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 } @@ -777,6 +777,13 @@ int afs_getattr(struct mnt_idmap *idmap, 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); |