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Mon, 16 Dec 2024 20:45:00 +0000 (UTC) Received: from warthog.procyon.org.com (unknown [10.42.28.48]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 8A47319560A2; Mon, 16 Dec 2024 20:44:54 +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 v5 28/32] afs: Make afs_mkdir() locally initialise a new directory's content Date: Mon, 16 Dec 2024 20:41:18 +0000 Message-ID: <20241216204124.3752367-29-dhowells@redhat.com> In-Reply-To: <20241216204124.3752367-1-dhowells@redhat.com> References: <20241216204124.3752367-1-dhowells@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 03AD280012 X-Stat-Signature: dd739a8hw3hubqtzrhpax3qrhgjzgd8i X-Rspam-User: X-HE-Tag: 1734381850-438926 X-HE-Meta: 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 vM5Phd95 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 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 | 49 ++++++++++++++++++++++++++++++++++++++ fs/afs/internal.h | 1 + include/trace/events/afs.h | 2 ++ 4 files changed, 55 insertions(+) diff --git a/fs/afs/dir.c b/fs/afs/dir.c index a386b4649f3e..bf46485d12f8 100644 --- a/fs/afs/dir.c +++ b/fs/afs/dir.c @@ -1264,6 +1264,7 @@ 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; @@ -1283,6 +1284,8 @@ 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 71cce884e434..53178bb2d1a6 100644 --- a/fs/afs/dir_edit.c +++ b/fs/afs/dir_edit.c @@ -556,3 +556,52 @@ 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); + set_bit(AFS_VNODE_DIR_READ, &dvnode->flags); +} diff --git a/fs/afs/internal.h b/fs/afs/internal.h index cd2c4f85117d..acae1b5bfc63 100644 --- a/fs/afs/internal.h +++ b/fs/afs/internal.h @@ -1078,6 +1078,7 @@ 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 cdb5f2af7799..c52fd83ca9b7 100644 --- a/include/trace/events/afs.h +++ b/include/trace/events/afs.h @@ -350,6 +350,7 @@ 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") \ @@ -371,6 +372,7 @@ 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") \