From: "Darrick J. Wong" <djwong@kernel.org>
To: Christoph Hellwig <hch@infradead.org>
Cc: Christoph Hellwig <hch@lst.de>,
allison.henderson@oracle.com, linux-xfs@vger.kernel.org,
catherine.hoang@oracle.com
Subject: Re: [PATCH v13.2.1 26/31] xfs: add parent pointer ioctls
Date: Thu, 18 Apr 2024 09:49:54 -0700 [thread overview]
Message-ID: <20240418164954.GK11948@frogsfrogsfrogs> (raw)
In-Reply-To: <ZiCfu8Et9Fnmoy8T@infradead.org>
On Wed, Apr 17, 2024 at 09:21:15PM -0700, Christoph Hellwig wrote:
> On Wed, Apr 17, 2024 at 03:25:03PM -0700, Darrick J. Wong wrote:
> > > + /* parent pointer ioctls */
> > > + XFS_CHECK_STRUCT_SIZE(struct xfs_getparents_rec, 32);
> >
> > It turns out that the i386 (or probably just 32-bit) build robots trip
> > over this statement, probably because of the implied padding after the
> > gpr_name[] flexarray. I'll change this to:
> >
> > XFS_CHECK_OFFSET(struct xfs_getparents_rec, gpr_name, 26);
> >
> > and let's see what they say. armhf checks out locally.
>
> Please make the padding explicit and keep the
> XFS_CHECK_STRUCT_SIZE, otherwise the ioctl won't work for 32-bit
> i386 binaries on an x86_64 kernel.
Ok, now I have:
struct xfs_getparents_rec {
struct xfs_handle gpr_parent; /* Handle to parent */
__u32 gpr_reclen; /* Length of entire record */
__u32 gpr_reserved; /* zero */
char gpr_name[]; /* Null-terminated filename */
};
This is now a 32-byte structure, with gpr_name starting at byte 32.
--D
next prev parent reply other threads:[~2024-04-18 16:49 UTC|newest]
Thread overview: 134+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-16 1:16 [PATCHBOMB v13.2] xfs: directory parent pointers Darrick J. Wong
2024-04-16 1:19 ` [PATCHSET v13.2 1/7] xfs: shrink struct xfs_da_args Darrick J. Wong
2024-04-16 1:21 ` [PATCH 1/5] xfs: remove XFS_DA_OP_REMOVE Darrick J. Wong
2024-04-16 1:21 ` [PATCH 2/5] xfs: remove XFS_DA_OP_NOTIME Darrick J. Wong
2024-04-16 1:21 ` [PATCH 3/5] xfs: remove xfs_da_args.attr_flags Darrick J. Wong
2024-04-16 5:07 ` Christoph Hellwig
2024-04-16 1:22 ` [PATCH 4/5] xfs: make attr removal an explicit operation Darrick J. Wong
2024-04-16 5:12 ` Christoph Hellwig
2024-04-16 17:31 ` Darrick J. Wong
2024-04-16 1:22 ` [PATCH 5/5] xfs: rearrange xfs_da_args a bit to use less space Darrick J. Wong
2024-04-16 5:13 ` Christoph Hellwig
2024-04-16 1:19 ` [PATCHSET v13.2 2/7] xfs: improve extended attribute validation Darrick J. Wong
2024-04-16 1:22 ` [PATCH 01/14] xfs: attr fork iext must be loaded before calling xfs_attr_is_leaf Darrick J. Wong
2024-04-16 1:22 ` [PATCH 02/14] xfs: require XFS_SB_FEAT_INCOMPAT_LOG_XATTRS for attr log intent item recovery Darrick J. Wong
2024-04-16 1:23 ` [PATCH 03/14] xfs: use an XFS_OPSTATE_ flag for detecting if logged xattrs are available Darrick J. Wong
2024-04-16 1:23 ` [PATCH 04/14] xfs: check opcode and iovec count match in xlog_recover_attri_commit_pass2 Darrick J. Wong
2024-04-16 1:23 ` [PATCH 05/14] xfs: fix missing check for invalid attr flags Darrick J. Wong
2024-04-16 1:23 ` [PATCH 06/14] xfs: check shortform attr entry flags specifically Darrick J. Wong
2024-04-16 5:13 ` Christoph Hellwig
2024-04-16 1:24 ` [PATCH 07/14] xfs: restructure xfs_attr_complete_op a bit Darrick J. Wong
2024-04-16 1:24 ` [PATCH 08/14] xfs: use helpers to extract xattr op from opflags Darrick J. Wong
2024-04-16 1:24 ` [PATCH 09/14] xfs: validate recovered name buffers when recovering xattr items Darrick J. Wong
2024-04-16 1:24 ` [PATCH 10/14] xfs: always set args->value in xfs_attri_item_recover Darrick J. Wong
2024-04-16 1:25 ` [PATCH 11/14] xfs: use local variables for name and value length in _attri_commit_pass2 Darrick J. Wong
2024-04-16 1:25 ` [PATCH 12/14] xfs: refactor name/length checks in xfs_attri_validate Darrick J. Wong
2024-04-16 1:25 ` [PATCH 13/14] xfs: refactor name/value iovec validation in xlog_recover_attri_commit_pass2 Darrick J. Wong
2024-04-16 5:15 ` Christoph Hellwig
2024-04-16 1:26 ` [PATCH 14/14] xfs: enforce one namespace per attribute Darrick J. Wong
2024-04-16 1:20 ` [PATCHSET v13.2 3/7] xfs: Parent Pointers Darrick J. Wong
2024-04-16 1:26 ` [PATCH 01/31] xfs: rearrange xfs_attr_match parameters Darrick J. Wong
2024-04-16 1:26 ` [PATCH 02/31] xfs: check the flags earlier in xfs_attr_match Darrick J. Wong
2024-04-16 1:26 ` [PATCH 03/31] xfs: move xfs_attr_defer_add to xfs_attr_item.c Darrick J. Wong
2024-04-16 1:27 ` [PATCH 04/31] xfs: create a separate hashname function for extended attributes Darrick J. Wong
2024-04-16 1:27 ` [PATCH 05/31] xfs: add parent pointer support to attribute code Darrick J. Wong
2024-04-16 1:27 ` [PATCH 06/31] xfs: define parent pointer ondisk extended attribute format Darrick J. Wong
2024-04-16 1:27 ` [PATCH 07/31] xfs: allow xattr matching on name and value for parent pointers Darrick J. Wong
2024-04-16 1:28 ` [PATCH 08/31] xfs: refactor xfs_is_using_logged_xattrs checks in attr item recovery Darrick J. Wong
2024-04-16 5:15 ` Christoph Hellwig
2024-04-16 1:28 ` [PATCH 09/31] xfs: create attr log item opcodes and formats for parent pointers Darrick J. Wong
2024-04-16 5:16 ` Christoph Hellwig
2024-04-17 2:52 ` [PATCH v13.2.1 " Darrick J. Wong
2024-04-16 1:28 ` [PATCH 10/31] xfs: record inode generation in xattr update log intent items Darrick J. Wong
2024-04-16 5:17 ` Christoph Hellwig
2024-04-16 1:28 ` [PATCH 11/31] xfs: Expose init_xattrs in xfs_create_tmpfile Darrick J. Wong
2024-04-16 1:29 ` [PATCH 12/31] xfs: add parent pointer validator functions Darrick J. Wong
2024-04-16 1:29 ` [PATCH 13/31] xfs: extend transaction reservations for parent attributes Darrick J. Wong
2024-04-16 1:29 ` [PATCH 14/31] xfs: create a hashname function for parent pointers Darrick J. Wong
2024-04-16 1:29 ` [PATCH 15/31] xfs: parent pointer attribute creation Darrick J. Wong
2024-04-16 1:30 ` [PATCH 16/31] xfs: add parent attributes to link Darrick J. Wong
2024-04-16 1:30 ` [PATCH 17/31] xfs: add parent attributes to symlink Darrick J. Wong
2024-04-16 1:30 ` [PATCH 18/31] xfs: remove parent pointers in unlink Darrick J. Wong
2024-04-16 1:30 ` [PATCH 19/31] xfs: Add parent pointers to rename Darrick J. Wong
2024-04-16 1:31 ` [PATCH 20/31] xfs: Add parent pointers to xfs_cross_rename Darrick J. Wong
2024-04-16 1:31 ` [PATCH 21/31] xfs: don't return XFS_ATTR_PARENT attributes via listxattr Darrick J. Wong
2024-04-16 5:17 ` Christoph Hellwig
2024-04-16 1:31 ` [PATCH 22/31] xfs: pass the attr value to put_listent when possible Darrick J. Wong
2024-04-16 1:32 ` [PATCH 23/31] xfs: move handle ioctl code to xfs_handle.c Darrick J. Wong
2024-04-16 1:32 ` [PATCH 24/31] xfs: split out handle management helpers a bit Darrick J. Wong
2024-04-16 1:32 ` [PATCH 25/31] xfs: actually check the fsid of a handle Darrick J. Wong
2024-04-16 5:19 ` Christoph Hellwig
2024-04-16 17:44 ` Darrick J. Wong
2024-04-16 1:32 ` [PATCH 26/31] xfs: add parent pointer ioctls Darrick J. Wong
2024-04-16 5:21 ` Christoph Hellwig
2024-04-16 17:59 ` Darrick J. Wong
2024-04-16 18:08 ` Christoph Hellwig
2024-04-16 18:12 ` Darrick J. Wong
2024-04-16 18:50 ` Christoph Hellwig
2024-04-17 2:49 ` [PATCH v13.2.1 " Darrick J. Wong
2024-04-17 22:25 ` Darrick J. Wong
2024-04-18 4:21 ` Christoph Hellwig
2024-04-18 16:49 ` Darrick J. Wong [this message]
2024-04-16 1:33 ` [PATCH 27/31] xfs: don't remove the attr fork when parent pointers are enabled Darrick J. Wong
2024-04-16 1:33 ` [PATCH 28/31] xfs: add a incompat feature bit for parent pointers Darrick J. Wong
2024-04-16 1:33 ` [PATCH 29/31] xfs: fix unit conversion error in xfs_log_calc_max_attrsetm_res Darrick J. Wong
2024-04-16 1:33 ` [PATCH 30/31] xfs: drop compatibility minimum log size computations for reflink Darrick J. Wong
2024-04-16 1:34 ` [PATCH 31/31] xfs: enable parent pointers Darrick J. Wong
2024-04-16 1:20 ` [PATCHSET v13.2 4/7] xfs: scrubbing for " Darrick J. Wong
2024-04-16 1:34 ` [PATCH 1/7] xfs: revert commit 44af6c7e59b12 Darrick J. Wong
2024-04-16 5:23 ` Christoph Hellwig
2024-04-16 1:34 ` [PATCH 2/7] xfs: check dirents have parent pointers Darrick J. Wong
2024-04-16 1:34 ` [PATCH 3/7] xfs: deferred scrub of dirents Darrick J. Wong
2024-04-16 1:35 ` [PATCH 4/7] xfs: scrub parent pointers Darrick J. Wong
2024-04-16 1:35 ` [PATCH 5/7] xfs: deferred scrub of " Darrick J. Wong
2024-04-16 1:35 ` [PATCH 6/7] xfs: walk directory parent pointers to determine backref count Darrick J. Wong
2024-04-16 1:35 ` [PATCH 7/7] xfs: check parent pointer xattrs when scrubbing Darrick J. Wong
2024-04-16 1:20 ` [PATCHSET v13.2 5/7] xfs: online repair for parent pointers Darrick J. Wong
2024-04-16 1:36 ` [PATCH 01/17] xfs: remove some boilerplate from xfs_attr_set Darrick J. Wong
2024-04-16 5:26 ` Christoph Hellwig
2024-04-16 18:15 ` Darrick J. Wong
2024-04-16 1:36 ` [PATCH 02/17] xfs: make the reserved block permission flag explicit in xfs_attr_set Darrick J. Wong
2024-04-16 5:26 ` Christoph Hellwig
2024-04-16 1:36 ` [PATCH 03/17] xfs: use xfs_attr_defer_parent for calling xfs_attr_set on pptrs Darrick J. Wong
2024-04-16 5:29 ` Christoph Hellwig
2024-04-16 16:05 ` Darrick J. Wong
2024-04-16 16:28 ` Christoph Hellwig
2024-04-16 18:41 ` Darrick J. Wong
2024-04-16 18:51 ` Christoph Hellwig
2024-04-17 2:54 ` Darrick J. Wong
2024-04-17 5:00 ` Christoph Hellwig
2024-04-16 1:36 ` [PATCH 04/17] xfs: salvage parent pointers when rebuilding xattr structures Darrick J. Wong
2024-04-16 1:37 ` [PATCH 05/17] xfs: add raw parent pointer apis to support repair Darrick J. Wong
2024-04-16 1:37 ` [PATCH 06/17] xfs: repair directories by scanning directory parent pointers Darrick J. Wong
2024-04-16 1:37 ` [PATCH 07/17] xfs: implement live updates for directory repairs Darrick J. Wong
2024-04-16 1:38 ` [PATCH 08/17] xfs: replay unlocked parent pointer updates that accrue during xattr repair Darrick J. Wong
2024-04-16 1:38 ` [PATCH 09/17] xfs: repair directory parent pointers by scanning for dirents Darrick J. Wong
2024-04-16 1:38 ` [PATCH 10/17] xfs: implement live updates for parent pointer repairs Darrick J. Wong
2024-04-16 1:38 ` [PATCH 11/17] xfs: remove pointless unlocked assertion Darrick J. Wong
2024-04-16 1:39 ` [PATCH 12/17] xfs: split xfs_bmap_add_attrfork into two pieces Darrick J. Wong
2024-04-16 1:39 ` [PATCH 13/17] xfs: add a per-leaf block callback to xchk_xattr_walk Darrick J. Wong
2024-04-16 1:39 ` [PATCH 14/17] xfs: actually rebuild the parent pointer xattrs Darrick J. Wong
2024-04-16 1:39 ` [PATCH 15/17] xfs: adapt the orphanage code to handle parent pointers Darrick J. Wong
2024-04-16 1:40 ` [PATCH 16/17] xfs: repair link count of nondirectories after rebuilding " Darrick J. Wong
2024-04-16 1:40 ` [PATCH 17/17] xfs: inode repair should ensure there's an attr fork to store " Darrick J. Wong
2024-04-16 1:20 ` [PATCHSET v13.2 6/7] xfs: detect and correct directory tree problems Darrick J. Wong
2024-04-16 1:40 ` [PATCH 1/4] xfs: teach online scrub to find directory tree structure problems Darrick J. Wong
2024-04-16 1:40 ` [PATCH 2/4] xfs: invalidate dirloop scrub path data when concurrent updates happen Darrick J. Wong
2024-04-16 1:41 ` [PATCH 3/4] xfs: report directory tree corruption in the health information Darrick J. Wong
2024-04-16 1:41 ` [PATCH 4/4] xfs: fix corruptions in the directory tree Darrick J. Wong
2024-04-16 1:21 ` [PATCHSET v13.2 7/7] xfs: vectorize scrub kernel calls Darrick J. Wong
2024-04-16 1:41 ` [PATCH 1/4] xfs: reduce the rate of cond_resched calls inside scrub Darrick J. Wong
2024-04-16 1:41 ` [PATCH 2/4] xfs: move xfs_ioc_scrub_metadata to scrub.c Darrick J. Wong
2024-04-16 5:31 ` Christoph Hellwig
2024-04-16 1:42 ` [PATCH 3/4] xfs: introduce vectored scrub mode Darrick J. Wong
2024-04-16 5:33 ` Christoph Hellwig
2024-04-16 18:46 ` Darrick J. Wong
2024-04-16 18:56 ` Christoph Hellwig
2024-04-16 19:06 ` Darrick J. Wong
2024-04-17 2:55 ` [PATCH v13.2.1 " Darrick J. Wong
2024-04-16 1:42 ` [PATCH 4/4] xfs: only iget the file once when doing vectored scrub-by-handle Darrick J. Wong
2024-04-16 5:35 ` Christoph Hellwig
2024-04-16 22:31 ` Darrick J. Wong
2024-04-16 22:51 ` Darrick J. Wong
2024-04-17 5:02 ` Christoph Hellwig
2024-04-17 5:01 ` Christoph Hellwig
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