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Thu, 24 Oct 2024 14:09:10 +0000 (UTC) From: David Howells To: Christian Brauner , Steve French , Matthew Wilcox Cc: David Howells , Jeff Layton , Gao Xiang , Dominique Martinet , Marc Dionne , Paulo Alcantara , Shyam Prasad N , Tom Talpey , Eric Van Hensbergen , Ilya Dryomov , netfs@lists.linux.dev, linux-afs@lists.infradead.org, linux-cifs@vger.kernel.org, linux-nfs@vger.kernel.org, ceph-devel@vger.kernel.org, v9fs@lists.linux.dev, linux-erofs@lists.ozlabs.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 27/27] afs: Make afs_mkdir() locally initialise a new directory's content Date: Thu, 24 Oct 2024 15:05:25 +0100 Message-ID: <20241024140539.3828093-28-dhowells@redhat.com> In-Reply-To: <20241024140539.3828093-1-dhowells@redhat.com> References: <20241024140539.3828093-1-dhowells@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.15 X-Rspam-User: X-Stat-Signature: mqaeqmjo9mhfwm5d7ufz784ufhumudem X-Rspamd-Queue-Id: 2C25BA003A X-Rspamd-Server: rspam11 X-HE-Tag: 1729778946-851340 X-HE-Meta: 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 cBF+LMTo ms5WZb/q0RqJAXXs+rAGn9fhITJIYRslHurFzofOdpWpPz19ckorNMZq5C6znbAbtq/uR/74anEzw4YYYueCdPty/7HpCL4SYO1+4G6ph7XcbvAeLUE/3DfLqgYtPUdOygin+K1x8BrZksQNPt9SO6i9vJhzRPF4hqRF7hg1irNj22/2ot9q9rL1f+Ek5TthlgGXj6BVAgnjqB/tavhaXQV2D3sosDy9FsmGu9ezrqXxpoykaMhgQmByzCZgFVfwfY70w5fRiC01qbgbZX0AYmxZFmHa88urnRt2I7ob5XxSxi1hYRFwS+gISoRnLwbNeoZnJn3nFeu9EprYt6YFcDHHkX+UULK3pYRrF5IFS+YHaBQnb17gBB4zGcDbTaSF1+dbxWUkxrS3uDFBaYdWuZ8JFDNXIvGjl/X4ZkKKQ6G84j08jY7Qv4q77oIuS5MUVHKDjx4iHGaXbwO+1t4saeUHsqMGBhJf6X5TFgTAKLI/pcDY= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Initialise a new directory's content when it is created by mkdir locally rather than downloading the content from the server as we can predict what it's going to look like. Signed-off-by: David Howells cc: Marc Dionne cc: linux-afs@lists.infradead.org --- fs/afs/dir.c | 3 +++ fs/afs/dir_edit.c | 48 ++++++++++++++++++++++++++++++++++++++ fs/afs/internal.h | 1 + include/trace/events/afs.h | 2 ++ 4 files changed, 54 insertions(+) diff --git a/fs/afs/dir.c b/fs/afs/dir.c index 87c5fb982e5b..c5b1008b302b 100644 --- a/fs/afs/dir.c +++ b/fs/afs/dir.c @@ -1270,6 +1270,7 @@ void afs_check_for_remote_deletion(struct afs_operation *op) */ static void afs_vnode_new_inode(struct afs_operation *op) { + struct afs_vnode_param *dvp = &op->file[0]; struct afs_vnode_param *vp = &op->file[1]; struct afs_vnode *vnode; struct inode *inode; @@ -1289,6 +1290,8 @@ static void afs_vnode_new_inode(struct afs_operation *op) vnode = AFS_FS_I(inode); set_bit(AFS_VNODE_NEW_CONTENT, &vnode->flags); + if (S_ISDIR(inode->i_mode)) + afs_mkdir_init_dir(vnode, dvp->vnode); if (!afs_op_error(op)) afs_cache_permit(vnode, op->key, vnode->cb_break, &vp->scb); d_instantiate(op->dentry, inode); diff --git a/fs/afs/dir_edit.c b/fs/afs/dir_edit.c index 28a966d2612d..c823497b9e25 100644 --- a/fs/afs/dir_edit.c +++ b/fs/afs/dir_edit.c @@ -556,3 +556,51 @@ void afs_edit_dir_update_dotdot(struct afs_vnode *vnode, struct afs_vnode *new_d 0, 0, 0, 0, ".."); goto out; } + +/* + * Initialise a new directory. We need to fill in the "." and ".." entries. + */ +void afs_mkdir_init_dir(struct afs_vnode *dvnode, struct afs_vnode *parent_dvnode) +{ + union afs_xdr_dir_block *meta; + struct afs_dir_iter iter = { .dvnode = dvnode }; + union afs_xdr_dirent *de; + unsigned int slot = AFS_DIR_RESV_BLOCKS0; + loff_t i_size; + + i_size = i_size_read(&dvnode->netfs.inode); + if (i_size != AFS_DIR_BLOCK_SIZE) { + afs_invalidate_dir(dvnode, afs_dir_invalid_edit_add_bad_size); + return; + } + + meta = afs_dir_get_block(&iter, 0); + if (!meta) + return; + + afs_edit_init_block(meta, meta, 0); + + de = &meta->dirents[slot]; + de->u.valid = 1; + de->u.vnode = htonl(dvnode->fid.vnode); + de->u.unique = htonl(dvnode->fid.unique); + memcpy(de->u.name, ".", 2); + trace_afs_edit_dir(dvnode, afs_edit_dir_for_mkdir, afs_edit_dir_mkdir, 0, slot, + dvnode->fid.vnode, dvnode->fid.unique, "."); + slot++; + + de = &meta->dirents[slot]; + de->u.valid = 1; + de->u.vnode = htonl(parent_dvnode->fid.vnode); + de->u.unique = htonl(parent_dvnode->fid.unique); + memcpy(de->u.name, "..", 3); + trace_afs_edit_dir(dvnode, afs_edit_dir_for_mkdir, afs_edit_dir_mkdir, 0, slot, + parent_dvnode->fid.vnode, parent_dvnode->fid.unique, ".."); + + afs_set_contig_bits(meta, AFS_DIR_RESV_BLOCKS0, 2); + meta->meta.alloc_ctrs[0] -= 2; + kunmap_local(meta); + + netfs_single_mark_inode_dirty(&dvnode->netfs.inode); + set_bit(AFS_VNODE_DIR_VALID, &dvnode->flags); +} diff --git a/fs/afs/internal.h b/fs/afs/internal.h index c7f0d75eab7f..3acf1445e444 100644 --- a/fs/afs/internal.h +++ b/fs/afs/internal.h @@ -1074,6 +1074,7 @@ extern void afs_edit_dir_add(struct afs_vnode *, struct qstr *, struct afs_fid * extern void afs_edit_dir_remove(struct afs_vnode *, struct qstr *, enum afs_edit_dir_reason); void afs_edit_dir_update_dotdot(struct afs_vnode *vnode, struct afs_vnode *new_dvnode, enum afs_edit_dir_reason why); +void afs_mkdir_init_dir(struct afs_vnode *dvnode, struct afs_vnode *parent_vnode); /* * dir_silly.c diff --git a/include/trace/events/afs.h b/include/trace/events/afs.h index 49a749672e38..020ab7302a6b 100644 --- a/include/trace/events/afs.h +++ b/include/trace/events/afs.h @@ -348,6 +348,7 @@ enum yfs_cm_operation { EM(afs_dir_invalid_edit_add_no_slots, "edit-add-no-slots") \ EM(afs_dir_invalid_edit_add_too_many_blocks, "edit-add-too-many-blocks") \ EM(afs_dir_invalid_edit_get_block, "edit-get-block") \ + EM(afs_dir_invalid_edit_mkdir, "edit-mkdir") \ EM(afs_dir_invalid_edit_rem_bad_size, "edit-rem-bad-size") \ EM(afs_dir_invalid_edit_rem_wrong_name, "edit-rem-wrong_name") \ EM(afs_dir_invalid_edit_upd_bad_size, "edit-upd-bad-size") \ @@ -369,6 +370,7 @@ enum yfs_cm_operation { EM(afs_edit_dir_delete_error, "d_err ") \ EM(afs_edit_dir_delete_inval, "d_invl") \ EM(afs_edit_dir_delete_noent, "d_nent") \ + EM(afs_edit_dir_mkdir, "mk_ent") \ EM(afs_edit_dir_update_dd, "u_ddot") \ EM(afs_edit_dir_update_error, "u_fail") \ EM(afs_edit_dir_update_inval, "u_invl") \