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h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=nlKvlRJi9pgRH+6o2ty2NFubBfldMbVG92auYpu5rLnD7BHetmDU9VKYf6sT5m1Lw 9z8nCOyKDUhe+AxVNHBpmS6G2dD8dJzX+rJji+yaVhGIr54DxEXSQ8Naflc5EqkZXm oMx3oc62nv59pQtbN4bwMHejWgL7/m3Ho4bpcELYand2g/GOfOpkZzzw8UfdxYWu0D cRTsM9p1Zy07AvT/CyljCNa9RVmM27z0pUsiEqV9U73RULJVyyi4xsIH17O7pCeT7K 2vuopndVreRhDXzjIQrwQNhfO8nP7E7b/KPlwkbJ15nkxHodGzG9a+hw+kyXBC4p1M 3/8b9w+0ZBn0Q== Message-ID: <4d4a9a3c59ed2efe5132c01f08a7719c2ea60f04.camel@kernel.org> From: Jeff Layton To: Joseph Qi Date: Wed, 26 Jul 2023 06:49:36 -0400 In-Reply-To: <1da81657-2ee1-0ef3-c222-66e00d021c24@linux.alibaba.com> References: <20230725-mgctime-v6-0-a794c2b7abca@kernel.org> <20230725-mgctime-v6-1-a794c2b7abca@kernel.org> <1da81657-2ee1-0ef3-c222-66e00d021c24@linux.alibaba.com> User-Agent: Evolution 3.48.4 (3.48.4-1.fc38) MIME-Version: 1.0 X-Headers-End: 1qOc5S-002wsi-CB Subject: Re: [f2fs-dev] [PATCH v6 1/7] fs: pass the request_mask to generic_fillattr X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Dave Chinner , linux-mm@kvack.org, linux-mtd@lists.infradead.org, linux-afs@lists.infradead.org, linux-cifs@vger.kernel.org, codalist@coda.cs.cmu.edu, cluster-devel@redhat.com, linux-ext4@vger.kernel.org, devel@lists.orangefs.org, Anthony Iliopoulos , ecryptfs@vger.kernel.org, ocfs2-devel@lists.linux.dev, ceph-devel@vger.kernel.org, linux-nfs@vger.kernel.org, v9fs@lists.linux.dev, samba-technical@lists.samba.org, linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, ntfs3@lists.linux.dev, linux-erofs@lists.ozlabs.org, linux-btrfs@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net On Wed, 2023-07-26 at 17:40 +0800, Joseph Qi wrote: > > On 7/25/23 10:58 PM, Jeff Layton wrote: > > generic_fillattr just fills in the entire stat struct indiscriminately > > today, copying data from the inode. There is at least one attribute > > (STATX_CHANGE_COOKIE) that can have side effects when it is reported, > > and we're looking at adding more with the addition of multigrain > > timestamps. > > > > Add a request_mask argument to generic_fillattr and have most callers > > just pass in the value that is passed to getattr. Have other callers > > (e.g. ksmbd) just pass in STATX_BASIC_STATS. Also move the setting of > > STATX_CHANGE_COOKIE into generic_fillattr. > > > > Signed-off-by: Jeff Layton > > --- > > fs/9p/vfs_inode.c | 4 ++-- > > fs/9p/vfs_inode_dotl.c | 4 ++-- > > fs/afs/inode.c | 2 +- > > fs/btrfs/inode.c | 2 +- > > fs/ceph/inode.c | 2 +- > > fs/coda/inode.c | 3 ++- > > fs/ecryptfs/inode.c | 5 +++-- > > fs/erofs/inode.c | 2 +- > > fs/exfat/file.c | 2 +- > > fs/ext2/inode.c | 2 +- > > fs/ext4/inode.c | 2 +- > > fs/f2fs/file.c | 2 +- > > fs/fat/file.c | 2 +- > > fs/fuse/dir.c | 2 +- > > fs/gfs2/inode.c | 2 +- > > fs/hfsplus/inode.c | 2 +- > > fs/kernfs/inode.c | 2 +- > > fs/libfs.c | 4 ++-- > > fs/minix/inode.c | 2 +- > > fs/nfs/inode.c | 2 +- > > fs/nfs/namespace.c | 3 ++- > > fs/ntfs3/file.c | 2 +- > > fs/ocfs2/file.c | 2 +- > > fs/orangefs/inode.c | 2 +- > > fs/proc/base.c | 4 ++-- > > fs/proc/fd.c | 2 +- > > fs/proc/generic.c | 2 +- > > fs/proc/proc_net.c | 2 +- > > fs/proc/proc_sysctl.c | 2 +- > > fs/proc/root.c | 3 ++- > > fs/smb/client/inode.c | 2 +- > > fs/smb/server/smb2pdu.c | 22 +++++++++++----------- > > fs/smb/server/vfs.c | 3 ++- > > fs/stat.c | 18 ++++++++++-------- > > fs/sysv/itree.c | 3 ++- > > fs/ubifs/dir.c | 2 +- > > fs/udf/symlink.c | 2 +- > > fs/vboxsf/utils.c | 2 +- > > include/linux/fs.h | 2 +- > > mm/shmem.c | 2 +- > > 40 files changed, 70 insertions(+), 62 deletions(-) > > > > ... > > > diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c > > index 1b337ebce4df..8184499ae7a5 100644 > > --- a/fs/ocfs2/file.c > > +++ b/fs/ocfs2/file.c > > @@ -1319,7 +1319,7 @@ int ocfs2_getattr(struct mnt_idmap *idmap, const struct path *path, > > goto bail; > > } > > > > - generic_fillattr(&nop_mnt_idmap, inode, stat); > > + generic_fillattr(&nop_mnt_idmap, request_mask, inode, stat); > > For ocfs2 part, looks fine to me. > > Acked-by: Joseph Qi > > > /* > > * If there is inline data in the inode, the inode will normally not > > * have data blocks allocated (it may have an external xattr block). > > ... > > > diff --git a/fs/stat.c b/fs/stat.c > > index 8c2b30af19f5..062f311b5386 100644 > > --- a/fs/stat.c > > +++ b/fs/stat.c > > @@ -29,6 +29,7 @@ > > /** > > * generic_fillattr - Fill in the basic attributes from the inode struct > > * @idmap: idmap of the mount the inode was found from > > + * @req_mask statx request_mask > > s/req_mask/request_mask > Thanks. Fixed in my tree. > > * @inode: Inode to use as the source > > * @stat: Where to fill in the attributes > > * > > @@ -42,8 +43,8 @@ > > * uid and gid filds. On non-idmapped mounts or if permission checking is to be > > * performed on the raw inode simply passs @nop_mnt_idmap. > > */ > > -void generic_fillattr(struct mnt_idmap *idmap, struct inode *inode, > > - struct kstat *stat) > > +void generic_fillattr(struct mnt_idmap *idmap, u32 request_mask, > > + struct inode *inode, struct kstat *stat) > > { > > vfsuid_t vfsuid = i_uid_into_vfsuid(idmap, inode); > > vfsgid_t vfsgid = i_gid_into_vfsgid(idmap, inode); > > @@ -61,6 +62,12 @@ void generic_fillattr(struct mnt_idmap *idmap, struct inode *inode, > > stat->ctime = inode_get_ctime(inode); > > stat->blksize = i_blocksize(inode); > > stat->blocks = inode->i_blocks; > > + > > + if ((request_mask & STATX_CHANGE_COOKIE) && IS_I_VERSION(inode)) { > > + stat->result_mask |= STATX_CHANGE_COOKIE; > > + stat->change_cookie = inode_query_iversion(inode); > > + } > > + > > } > > EXPORT_SYMBOL(generic_fillattr); > > > > @@ -123,17 +130,12 @@ int vfs_getattr_nosec(const struct path *path, struct kstat *stat, > > stat->attributes_mask |= (STATX_ATTR_AUTOMOUNT | > > STATX_ATTR_DAX); > > > > - if ((request_mask & STATX_CHANGE_COOKIE) && IS_I_VERSION(inode)) { > > - stat->result_mask |= STATX_CHANGE_COOKIE; > > - stat->change_cookie = inode_query_iversion(inode); > > - } > > - > > idmap = mnt_idmap(path->mnt); > > if (inode->i_op->getattr) > > return inode->i_op->getattr(idmap, path, stat, > > request_mask, query_flags); > > > > - generic_fillattr(idmap, inode, stat); > > + generic_fillattr(idmap, request_mask, inode, stat); > > return 0; > > } > > EXPORT_SYMBOL(vfs_getattr_nosec); > > ... > -- Jeff Layton _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel