From patchwork Thu Sep 5 22:18:49 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Allison Henderson X-Patchwork-Id: 11134065 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A82B81599 for ; Thu, 5 Sep 2019 22:19:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B237C20828 for ; Thu, 5 Sep 2019 22:19:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="YQpzricY" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391176AbfIEWTS (ORCPT ); Thu, 5 Sep 2019 18:19:18 -0400 Received: from userp2130.oracle.com ([156.151.31.86]:39144 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2391177AbfIEWTO (ORCPT ); Thu, 5 Sep 2019 18:19:14 -0400 Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x85MJ8kp084630 for ; Thu, 5 Sep 2019 22:19:11 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : subject : date : message-id : in-reply-to : references; s=corp-2019-08-05; bh=hqhdLMrzfjfn3Ks3DgeQeBV4BEdQCXBsYtbhhFx/HoU=; b=YQpzricYqeb3Dah0549o2kV9HQfj+WhA+vgW3/J2dh0Ahcsn2/cKkoKqJMSRQLkgtNI8 6Oh8zp3Wx5EcFTPsuOIIYoykd2GPFzIIWB1sYHkAWZG/FXztZFyqBWSRIdJiE01v97f0 hm/0zDg/bKsj3cIejJQuBIjCkyeW2gOCdXGX7UF1aC5zhN4OeQ/Bxsx8ESCOu8SYsQKE CIlX0z1jFwz93q4MmRPdJGWJoVExeTsLHO49dtSUDcyeGb76pvIDuJmVkf78O5jkZOot bcp8MWLW3EnSsoOhz73JNwMhqgnKEST690nAmf0rk+4N/wRy4bKkIu8+xVAjI8GBwf3A jw== Received: from userp3020.oracle.com (userp3020.oracle.com [156.151.31.79]) by userp2130.oracle.com with ESMTP id 2uuaqxr2ej-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Thu, 05 Sep 2019 22:19:11 +0000 Received: from pps.filterd (userp3020.oracle.com [127.0.0.1]) by userp3020.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x85MJ309076476 for ; Thu, 5 Sep 2019 22:19:11 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by userp3020.oracle.com with ESMTP id 2utvr4a10r-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Thu, 05 Sep 2019 22:19:08 +0000 Received: from abhmp0005.oracle.com (abhmp0005.oracle.com [141.146.116.11]) by userv0121.oracle.com (8.14.4/8.13.8) with ESMTP id x85MJ4fV011686 for ; Thu, 5 Sep 2019 22:19:04 GMT Received: from localhost.localdomain (/67.1.183.122) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 05 Sep 2019 15:19:04 -0700 From: Allison Collins To: linux-xfs@vger.kernel.org Subject: [PATCH v2 15/21] xfsprogs: Set up infastructure for deferred attribute operations Date: Thu, 5 Sep 2019 15:18:49 -0700 Message-Id: <20190905221855.17555-16-allison.henderson@oracle.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190905221855.17555-1-allison.henderson@oracle.com> References: <20190905221855.17555-1-allison.henderson@oracle.com> X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9371 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=4 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1909050207 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9371 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=4 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1909050207 Sender: linux-xfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org Currently attributes are modified directly across one or more transactions. But they are not logged or replayed in the event of an error. The goal of delayed attributes is to enable logging and replaying of attribute operations using the existing delayed operations infrastructure. This will later enable the attributes to become part of larger multi part operations that also must first be recorded to the log. This is mostly of interest in the scheme of parent pointers which would need to maintain an attribute containing parent inode information any time an inode is moved, created, or removed. Parent pointers would then be of interest to any feature that would need to quickly derive an inode path from the mount point. Online scrub, nfs lookups and fs grow or shrink operations are all features that could take advantage of this. This patch adds two new log item types for setting or removing attributes as deferred operations. The xfs_attri_log_item logs an intent to set or remove an attribute. The corresponding xfs_attrd_log_item holds a reference to the xfs_attri_log_item and is freed once the transaction is done. Both log items use a generic xfs_attr_log_format structure that contains the attribute name, value, flags, inode, and an op_flag that indicates if the operations is a set or remove. Signed-off-by: Allison Collins --- libxfs/defer_item.c | 175 +++++++++++++++++++++++++++++++++++++++++++++++- libxfs/libxfs_priv.h | 1 + libxfs/xfs_attr.c | 5 +- libxfs/xfs_attr.h | 33 +++++++++ libxfs/xfs_attr_leaf.c | 1 + libxfs/xfs_defer.c | 1 + libxfs/xfs_defer.h | 3 + libxfs/xfs_log_format.h | 44 +++++++++++- libxfs/xfs_types.h | 1 + 9 files changed, 259 insertions(+), 5 deletions(-) diff --git a/libxfs/defer_item.c b/libxfs/defer_item.c index 2ebc12b..99e515a 100644 --- a/libxfs/defer_item.c +++ b/libxfs/defer_item.c @@ -16,10 +16,13 @@ #include "xfs_trans.h" #include "xfs_bmap.h" #include "xfs_alloc.h" +#include "xfs_attr_item.h" #include "xfs_rmap.h" #include "xfs_refcount.h" -#include "xfs_bmap.h" #include "xfs_inode.h" +#include "xfs_da_format.h" +#include "xfs_da_btree.h" +#include "xfs_attr.h" /* Dummy defer item ops, since we don't do logging. */ @@ -117,6 +120,176 @@ const struct xfs_defer_op_type xfs_extent_free_defer_type = { .cancel_item = xfs_extent_free_cancel_item, }; +int +xfs_trans_attr( + struct xfs_da_args *args, + struct xfs_attrd_log_item *attrdp, + struct xfs_buf **leaf_bp, + uint32_t op_flags) +{ + int error; + + error = xfs_qm_dqattach_locked(args->dp, 0); + if (error) + return error; + + switch (op_flags) { + case XFS_ATTR_OP_FLAGS_SET: + args->op_flags |= XFS_DA_OP_ADDNAME; + error = xfs_attr_set_args(args); + break; + case XFS_ATTR_OP_FLAGS_REMOVE: + ASSERT(XFS_IFORK_Q((args->dp))); + error = xfs_attr_remove_args(args); + break; + default: + error = -EFSCORRUPTED; + } + + /* + * Mark the transaction dirty, even on error. This ensures the + * transaction is aborted, which: + * + * 1.) releases the ATTRI and frees the ATTRD + * 2.) shuts down the filesystem + */ + args->trans->t_flags |= XFS_TRANS_DIRTY; + set_bit(XFS_LI_DIRTY, &attrdp->attrd_item.li_flags); + + return error; +} + +static int +xfs_attr_diff_items( + void *priv, + struct list_head *a, + struct list_head *b) +{ + return 0; +} + +/* Get an ATTRI. */ +STATIC void * +xfs_attr_create_intent( + struct xfs_trans *tp, + unsigned int count) +{ + return NULL; +} + +/* Log an attr to the intent item. */ +STATIC void +xfs_attr_log_item( + struct xfs_trans *tp, + void *intent, + struct list_head *item) +{ +} + +/* Get an ATTRD so we can process all the attrs. */ +STATIC void * +xfs_attr_create_done( + struct xfs_trans *tp, + void *intent, + unsigned int count) +{ + return NULL; +} + +/* Process an attr. */ +STATIC int +xfs_attr_finish_item( + struct xfs_trans *tp, + struct list_head *item, + void *done_item, + void **state) +{ + struct xfs_attr_item *attr; + unsigned char *name_value; + int error; + int local; + struct xfs_da_args *args; + struct xfs_name name; + struct xfs_attrd_log_item *attrdp; + struct xfs_attri_log_item *attrip; + + attr = container_of(item, struct xfs_attr_item, xattri_list); + args = &attr->xattri_args; + + name_value = ((unsigned char *)attr) + sizeof(struct xfs_attr_item); + name.name = name_value; + name.len = attr->xattri_name_len; + name.type = attr->xattri_flags; + + if (!(args->dc.flags & XFS_DC_INIT)) { + error = xfs_attr_args_init(args, attr->xattri_ip, &name); + if (error) + goto out; + + args->hashval = xfs_da_hashname(args->name.name, + args->name.len); + args->value = &name_value[attr->xattri_name_len]; + args->valuelen = attr->xattri_value_len; + args->op_flags = XFS_DA_OP_OKNOENT; + args->total = xfs_attr_calc_size(args, &local); + args->dc.flags |= XFS_DC_INIT; + } + + /* + * Always reset trans after EAGAIN cycle + * since the transaction is new + */ + args->trans = tp; + + error = xfs_trans_attr(args, done_item, &args->dc.leaf_bp, + attr->xattri_op_flags); +out: + /* + * We are about to free the xfs_attr_item, so we need to remove any + * refrences that are currently pointing at its members + */ + attrdp = (struct xfs_attrd_log_item *)done_item; + attrip = attrdp->attrd_attrip; + attrip->attri_name = NULL; + attrip->attri_value = NULL; + attrip->attri_name_len = 0; + attrip->attri_value_len = 0; + + if (error != -EAGAIN) + kmem_free(attr); + return error; +} + +/* Abort all pending ATTRs. */ +STATIC void +xfs_attr_abort_intent( + void *intent) +{ +} + +/* Cancel an attr */ + +STATIC void +xfs_attr_cancel_item( + struct list_head *item) +{ + struct xfs_attr_item *free; + + free = container_of(item, struct xfs_attr_item, xattri_list); + kmem_free(free); +} + +const struct xfs_defer_op_type xfs_attr_defer_type = { + .max_items = XFS_ATTRI_MAX_FAST_ATTRS, + .diff_items = xfs_attr_diff_items, + .create_intent = xfs_attr_create_intent, + .abort_intent = xfs_attr_abort_intent, + .log_item = xfs_attr_log_item, + .create_done = xfs_attr_create_done, + .finish_item = xfs_attr_finish_item, + .cancel_item = xfs_attr_cancel_item, +}; + /* * AGFL blocks are accounted differently in the reserve pools and are not * inserted into the busy extent list. diff --git a/libxfs/libxfs_priv.h b/libxfs/libxfs_priv.h index 7f604f0..d9a1f22 100644 --- a/libxfs/libxfs_priv.h +++ b/libxfs/libxfs_priv.h @@ -462,6 +462,7 @@ roundup_64(uint64_t x, uint32_t y) #define xfs_trans_reserve_quota_nblks(t,i,b,n,f) (0) #define xfs_trans_unreserve_quota_nblks(t,i,b,n,f) ((void) 0) #define xfs_qm_dqattach(i) (0) +#define xfs_qm_dqattach_locked(i,b) (0) #define uuid_copy(s,d) platform_uuid_copy((s),(d)) #define uuid_equal(s,d) (platform_uuid_compare((s),(d)) == 0) diff --git a/libxfs/xfs_attr.c b/libxfs/xfs_attr.c index e4d1c0c..919a5da 100644 --- a/libxfs/xfs_attr.c +++ b/libxfs/xfs_attr.c @@ -23,6 +23,7 @@ #include "xfs_attr_remote.h" #include "xfs_trans_space.h" #include "xfs_trace.h" +#include "xfs_attr_item.h" /* * xfs_attr.c @@ -62,7 +63,7 @@ STATIC int xfs_attr_fillstate(xfs_da_state_t *state); STATIC int xfs_attr_refillstate(xfs_da_state_t *state); STATIC int xfs_attr_leaf_try_add(struct xfs_da_args *args, struct xfs_buf *bp); -STATIC int +int xfs_attr_args_init( struct xfs_da_args *args, struct xfs_inode *dp, @@ -156,7 +157,7 @@ xfs_attr_get( /* * Calculate how many blocks we need for the new attribute, */ -STATIC int +int xfs_attr_calc_size( struct xfs_da_args *args, int *local) diff --git a/libxfs/xfs_attr.h b/libxfs/xfs_attr.h index 9828728..a651f4e 100644 --- a/libxfs/xfs_attr.h +++ b/libxfs/xfs_attr.h @@ -78,6 +78,36 @@ typedef struct attrlist_ent { /* data from attr_list() */ } attrlist_ent_t; /* + * List of attrs to commit later. + */ +struct xfs_attr_item { + struct xfs_inode *xattri_ip; + void *xattri_value; /* attr value */ + void *xattri_name; /* attr name */ + uint32_t xattri_op_flags; /* attr op set or rm */ + uint32_t xattri_value_len; /* length of value */ + uint32_t xattri_name_len; /* length of name */ + uint32_t xattri_flags; /* attr flags */ + + /* used to log this item to an intent */ + struct list_head xattri_list; + + /* + * xfs_da_args needs to remain instantiated across transaction rolls + * during the defer finish, so store it here + */ + struct xfs_da_args xattri_args; + + /* + * A byte array follows the header containing the file name and + * attribute value. + */ +}; + +#define XFS_ATTR_ITEM_SIZEOF(namelen, valuelen) \ + (sizeof(struct xfs_attr_item) + (namelen) + (valuelen)) + +/* * Given a pointer to the (char*) buffer containing the attr_list() result, * and an index, return a pointer to the indicated attribute in the buffer. */ @@ -155,5 +185,8 @@ int xfs_attr_remove_later(struct xfs_da_args *args); int xfs_attr_list(struct xfs_inode *dp, char *buffer, int bufsize, int flags, struct attrlist_cursor_kern *cursor); bool xfs_attr_namecheck(const void *name, size_t length); +int xfs_attr_args_init(struct xfs_da_args *args, struct xfs_inode *dp, + struct xfs_name *name); +int xfs_attr_calc_size(struct xfs_da_args *args, int *local); #endif /* __XFS_ATTR_H__ */ diff --git a/libxfs/xfs_attr_leaf.c b/libxfs/xfs_attr_leaf.c index 338b0bd..72b1751 100644 --- a/libxfs/xfs_attr_leaf.c +++ b/libxfs/xfs_attr_leaf.c @@ -19,6 +19,7 @@ #include "xfs_bmap.h" #include "xfs_attr_sf.h" #include "xfs_attr_remote.h" +#include "xfs_da_btree.h" #include "xfs_attr.h" #include "xfs_attr_leaf.h" #include "xfs_trace.h" diff --git a/libxfs/xfs_defer.c b/libxfs/xfs_defer.c index 0e6d94d..6ee70f9 100644 --- a/libxfs/xfs_defer.c +++ b/libxfs/xfs_defer.c @@ -170,6 +170,7 @@ static const struct xfs_defer_op_type *defer_op_types[] = { [XFS_DEFER_OPS_TYPE_RMAP] = &xfs_rmap_update_defer_type, [XFS_DEFER_OPS_TYPE_FREE] = &xfs_extent_free_defer_type, [XFS_DEFER_OPS_TYPE_AGFL_FREE] = &xfs_agfl_free_defer_type, + [XFS_DEFER_OPS_TYPE_ATTR] = &xfs_attr_defer_type, }; /* diff --git a/libxfs/xfs_defer.h b/libxfs/xfs_defer.h index 7c28d76..b9ff7b9 100644 --- a/libxfs/xfs_defer.h +++ b/libxfs/xfs_defer.h @@ -17,6 +17,7 @@ enum xfs_defer_ops_type { XFS_DEFER_OPS_TYPE_RMAP, XFS_DEFER_OPS_TYPE_FREE, XFS_DEFER_OPS_TYPE_AGFL_FREE, + XFS_DEFER_OPS_TYPE_ATTR, XFS_DEFER_OPS_TYPE_MAX, }; @@ -60,5 +61,7 @@ extern const struct xfs_defer_op_type xfs_refcount_update_defer_type; extern const struct xfs_defer_op_type xfs_rmap_update_defer_type; extern const struct xfs_defer_op_type xfs_extent_free_defer_type; extern const struct xfs_defer_op_type xfs_agfl_free_defer_type; +extern const struct xfs_defer_op_type xfs_attr_defer_type; + #endif /* __XFS_DEFER_H__ */ diff --git a/libxfs/xfs_log_format.h b/libxfs/xfs_log_format.h index e5f97c6..acdb8ad 100644 --- a/libxfs/xfs_log_format.h +++ b/libxfs/xfs_log_format.h @@ -117,7 +117,12 @@ struct xfs_unmount_log_format { #define XLOG_REG_TYPE_CUD_FORMAT 24 #define XLOG_REG_TYPE_BUI_FORMAT 25 #define XLOG_REG_TYPE_BUD_FORMAT 26 -#define XLOG_REG_TYPE_MAX 26 +#define XLOG_REG_TYPE_ATTRI_FORMAT 27 +#define XLOG_REG_TYPE_ATTRD_FORMAT 28 +#define XLOG_REG_TYPE_ATTR_NAME 29 +#define XLOG_REG_TYPE_ATTR_VALUE 30 +#define XLOG_REG_TYPE_MAX 30 + /* * Flags to log operation header @@ -240,6 +245,8 @@ typedef struct xfs_trans_header { #define XFS_LI_CUD 0x1243 #define XFS_LI_BUI 0x1244 /* bmbt update intent */ #define XFS_LI_BUD 0x1245 +#define XFS_LI_ATTRI 0x1246 /* attr set/remove intent*/ +#define XFS_LI_ATTRD 0x1247 /* attr set/remove done */ #define XFS_LI_TYPE_DESC \ { XFS_LI_EFI, "XFS_LI_EFI" }, \ @@ -255,7 +262,9 @@ typedef struct xfs_trans_header { { XFS_LI_CUI, "XFS_LI_CUI" }, \ { XFS_LI_CUD, "XFS_LI_CUD" }, \ { XFS_LI_BUI, "XFS_LI_BUI" }, \ - { XFS_LI_BUD, "XFS_LI_BUD" } + { XFS_LI_BUD, "XFS_LI_BUD" }, \ + { XFS_LI_ATTRI, "XFS_LI_ATTRI" }, \ + { XFS_LI_ATTRD, "XFS_LI_ATTRD" } /* * Inode Log Item Format definitions. @@ -853,4 +862,35 @@ struct xfs_icreate_log { __be32 icl_gen; /* inode generation number to use */ }; +/* + * Flags for deferred attribute operations. + * Upper bits are flags, lower byte is type code + */ +#define XFS_ATTR_OP_FLAGS_SET 1 /* Set the attribute */ +#define XFS_ATTR_OP_FLAGS_REMOVE 2 /* Remove the attribute */ +#define XFS_ATTR_OP_FLAGS_TYPE_MASK 0x0FF /* Flags type mask */ + +/* + * This is the structure used to lay out an attr log item in the + * log. + */ +struct xfs_attri_log_format { + uint16_t alfi_type; /* attri log item type */ + uint16_t alfi_size; /* size of this item */ + uint32_t __pad; /* pad to 64 bit aligned */ + uint64_t alfi_id; /* attri identifier */ + xfs_ino_t alfi_ino; /* the inode for this attr operation */ + uint32_t alfi_op_flags; /* marks the op as a set or remove */ + uint32_t alfi_name_len; /* attr name length */ + uint32_t alfi_value_len; /* attr value length */ + uint32_t alfi_attr_flags;/* attr flags */ +}; + +struct xfs_attrd_log_format { + uint16_t alfd_type; /* attrd log item type */ + uint16_t alfd_size; /* size of this item */ + uint32_t __pad; /* pad to 64 bit aligned */ + uint64_t alfd_alf_id; /* id of corresponding attrd */ +}; + #endif /* __XFS_LOG_FORMAT_H__ */ diff --git a/libxfs/xfs_types.h b/libxfs/xfs_types.h index 802b34c..5e1dce5 100644 --- a/libxfs/xfs_types.h +++ b/libxfs/xfs_types.h @@ -11,6 +11,7 @@ typedef uint32_t prid_t; /* project ID */ typedef uint32_t xfs_agblock_t; /* blockno in alloc. group */ typedef uint32_t xfs_agino_t; /* inode # within allocation grp */ typedef uint32_t xfs_extlen_t; /* extent length in blocks */ +typedef uint32_t xfs_attrlen_t; /* attr length */ typedef uint32_t xfs_agnumber_t; /* allocation group number */ typedef int32_t xfs_extnum_t; /* # of extents in a file */ typedef int16_t xfs_aextnum_t; /* # extents in an attribute fork */