diff options
Diffstat (limited to 'fs')
51 files changed, 344 insertions, 184 deletions
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index f4f4450119e4..f1d96233670c 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -1047,16 +1047,18 @@ done: /** * v9fs_vfs_getattr - retrieve file metadata - * @mnt: mount information - * @dentry: file to get attributes on + * @path: Object to query * @stat: metadata structure to populate + * @request_mask: Mask of STATX_xxx flags indicating the caller's interests + * @flags: AT_STATX_xxx setting * */ static int -v9fs_vfs_getattr(struct vfsmount *mnt, struct dentry *dentry, - struct kstat *stat) +v9fs_vfs_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags) { + struct dentry *dentry = path->dentry; struct v9fs_session_info *v9ses; struct p9_fid *fid; struct p9_wstat *st; diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c index 5999bd050678..570e63ee5b71 100644 --- a/fs/9p/vfs_inode_dotl.c +++ b/fs/9p/vfs_inode_dotl.c @@ -468,9 +468,10 @@ error: } static int -v9fs_vfs_getattr_dotl(struct vfsmount *mnt, struct dentry *dentry, - struct kstat *stat) +v9fs_vfs_getattr_dotl(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags) { + struct dentry *dentry = path->dentry; struct v9fs_session_info *v9ses; struct p9_fid *fid; struct p9_stat_dotl *st; diff --git a/fs/afs/inode.c b/fs/afs/inode.c index 86cc7264c21c..1e4897a048d2 100644 --- a/fs/afs/inode.c +++ b/fs/afs/inode.c @@ -375,12 +375,10 @@ error_unlock: /* * read the attributes of an inode */ -int afs_getattr(struct vfsmount *mnt, struct dentry *dentry, - struct kstat *stat) +int afs_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int query_flags) { - struct inode *inode; - - inode = d_inode(dentry); + struct inode *inode = d_inode(path->dentry); _enter("{ ino=%lu v=%u }", inode->i_ino, inode->i_generation); diff --git a/fs/afs/internal.h b/fs/afs/internal.h index 8acf3670e756..5dfa56903a2d 100644 --- a/fs/afs/internal.h +++ b/fs/afs/internal.h @@ -533,7 +533,7 @@ extern struct inode *afs_iget(struct super_block *, struct key *, struct afs_callback *); extern void afs_zap_data(struct afs_vnode *); extern int afs_validate(struct afs_vnode *, struct key *); -extern int afs_getattr(struct vfsmount *, struct dentry *, struct kstat *); +extern int afs_getattr(const struct path *, struct kstat *, u32, unsigned int); extern int afs_setattr(struct dentry *, struct iattr *); extern void afs_evict_inode(struct inode *); extern int afs_drop_inode(struct inode *); diff --git a/fs/bad_inode.c b/fs/bad_inode.c index 5f685c819298..bb53728c7a31 100644 --- a/fs/bad_inode.c +++ b/fs/bad_inode.c @@ -89,8 +89,8 @@ static int bad_inode_permission(struct inode *inode, int mask) return -EIO; } -static int bad_inode_getattr(struct vfsmount *mnt, struct dentry *dentry, - struct kstat *stat) +static int bad_inode_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int query_flags) { return -EIO; } diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index ee6978d80491..c40060cc481f 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -9413,11 +9413,11 @@ fail: return -ENOMEM; } -static int btrfs_getattr(struct vfsmount *mnt, - struct dentry *dentry, struct kstat *stat) +static int btrfs_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags) { u64 delalloc_bytes; - struct inode *inode = d_inode(dentry); + struct inode *inode = d_inode(path->dentry); u32 blocksize = inode->i_sb->s_blocksize; generic_fillattr(inode, stat); diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index fd8f771f99b7..d449e1c03cbd 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -2187,10 +2187,10 @@ int ceph_permission(struct inode *inode, int mask) * Get all attributes. Hopefully somedata we'll have a statlite() * and can limit the fields we require to be accurate. */ -int ceph_getattr(struct vfsmount *mnt, struct dentry *dentry, - struct kstat *stat) +int ceph_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags) { - struct inode *inode = d_inode(dentry); + struct inode *inode = d_inode(path->dentry); struct ceph_inode_info *ci = ceph_inode(inode); int err; diff --git a/fs/ceph/super.h b/fs/ceph/super.h index e9410bcf4113..fe6b9cfc4013 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -784,8 +784,8 @@ static inline int ceph_do_getattr(struct inode *inode, int mask, bool force) extern int ceph_permission(struct inode *inode, int mask); extern int __ceph_setattr(struct inode *inode, struct iattr *attr); extern int ceph_setattr(struct dentry *dentry, struct iattr *attr); -extern int ceph_getattr(struct vfsmount *mnt, struct dentry *dentry, - struct kstat *stat); +extern int ceph_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags); /* xattr.c */ int __ceph_setxattr(struct inode *, const char *, const void *, size_t, int); diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h index c9c00a862036..da717fee3026 100644 --- a/fs/cifs/cifsfs.h +++ b/fs/cifs/cifsfs.h @@ -83,7 +83,7 @@ extern int cifs_revalidate_dentry(struct dentry *); extern int cifs_invalidate_mapping(struct inode *inode); extern int cifs_revalidate_mapping(struct inode *inode); extern int cifs_zap_mapping(struct inode *inode); -extern int cifs_getattr(struct vfsmount *, struct dentry *, struct kstat *); +extern int cifs_getattr(const struct path *, struct kstat *, u32, unsigned int); extern int cifs_setattr(struct dentry *, struct iattr *); extern const struct inode_operations cifs_file_inode_ops; diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index 1858fc20eb7d..b261db34103c 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -1992,9 +1992,10 @@ int cifs_revalidate_dentry(struct dentry *dentry) return cifs_revalidate_mapping(inode); } -int cifs_getattr(struct vfsmount *mnt, struct dentry *dentry, - struct kstat *stat) +int cifs_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags) { + struct dentry *dentry = path->dentry; struct cifs_sb_info *cifs_sb = CIFS_SB(dentry->d_sb); struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb); struct inode *inode = d_inode(dentry); diff --git a/fs/coda/coda_linux.h b/fs/coda/coda_linux.h index 5104d84c4f64..d3c361883c28 100644 --- a/fs/coda/coda_linux.h +++ b/fs/coda/coda_linux.h @@ -47,7 +47,7 @@ int coda_open(struct inode *i, struct file *f); int coda_release(struct inode *i, struct file *f); int coda_permission(struct inode *inode, int mask); int coda_revalidate_inode(struct inode *); -int coda_getattr(struct vfsmount *, struct dentry *, struct kstat *); +int coda_getattr(const struct path *, struct kstat *, u32, unsigned int); int coda_setattr(struct dentry *, struct iattr *); /* this file: heloers */ diff --git a/fs/coda/inode.c b/fs/coda/inode.c index 71dbe7e287ce..2dea594da199 100644 --- a/fs/coda/inode.c +++ b/fs/coda/inode.c @@ -255,11 +255,12 @@ static void coda_evict_inode(struct inode *inode) coda_cache_clear_inode(inode); } -int coda_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat) +int coda_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags) { - int err = coda_revalidate_inode(d_inode(dentry)); + int err = coda_revalidate_inode(d_inode(path->dentry)); if (!err) - generic_fillattr(d_inode(dentry), stat); + generic_fillattr(d_inode(path->dentry), stat); return err; } diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c index e7413f82d27b..efc2db42d175 100644 --- a/fs/ecryptfs/inode.c +++ b/fs/ecryptfs/inode.c @@ -959,9 +959,10 @@ out: return rc; } -static int ecryptfs_getattr_link(struct vfsmount *mnt, struct dentry *dentry, - struct kstat *stat) +static int ecryptfs_getattr_link(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags) { + struct dentry *dentry = path->dentry; struct ecryptfs_mount_crypt_stat *mount_crypt_stat; int rc = 0; @@ -983,13 +984,15 @@ static int ecryptfs_getattr_link(struct vfsmount *mnt, struct dentry *dentry, return rc; } -static int ecryptfs_getattr(struct vfsmount *mnt, struct dentry *dentry, - struct kstat *stat) +static int ecryptfs_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags) { + struct dentry *dentry = path->dentry; struct kstat lower_stat; int rc; - rc = vfs_getattr(ecryptfs_dentry_to_lower_path(dentry), &lower_stat); + rc = vfs_getattr(ecryptfs_dentry_to_lower_path(dentry), &lower_stat, + request_mask, flags); if (!rc) { fsstack_copy_attr_all(d_inode(dentry), ecryptfs_inode_to_lower(d_inode(dentry))); diff --git a/fs/exportfs/expfs.c b/fs/exportfs/expfs.c index 9ec1038f937e..329a5d103846 100644 --- a/fs/exportfs/expfs.c +++ b/fs/exportfs/expfs.c @@ -300,7 +300,8 @@ static int get_name(const struct path *path, char *name, struct dentry *child) * filesystem supports 64-bit inode numbers. So we need to * actually call ->getattr, not just read i_ino: */ - error = vfs_getattr_nosec(&child_path, &stat); + error = vfs_getattr_nosec(&child_path, &stat, + STATX_INO, AT_STATX_SYNC_AS_STAT); if (error) return error; buffer.ino = stat.ino; diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 77798a46b0c6..f493af666591 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -2463,8 +2463,7 @@ extern struct inode *ext4_iget(struct super_block *, unsigned long); extern struct inode *ext4_iget_normal(struct super_block *, unsigned long); extern int ext4_write_inode(struct inode *, struct writeback_control *); extern int ext4_setattr(struct dentry *, struct iattr *); -extern int ext4_getattr(struct vfsmount *mnt, struct dentry *dentry, - struct kstat *stat); +extern int ext4_getattr(const struct path *, struct kstat *, u32, unsigned int); extern void ext4_evict_inode(struct inode *); extern void ext4_clear_inode(struct inode *); extern int ext4_sync_inode(handle_t *, struct inode *); diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 971f66342080..7385e6a6b6cb 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -5387,13 +5387,13 @@ err_out: return error; } -int ext4_getattr(struct vfsmount *mnt, struct dentry *dentry, - struct kstat *stat) +int ext4_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int query_flags) { struct inode *inode; unsigned long long delalloc_blocks; - inode = d_inode(dentry); + inode = d_inode(path->dentry); generic_fillattr(inode, stat); /* diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index d1483136fed6..e849f83d6114 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -2040,8 +2040,8 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync); void truncate_data_blocks(struct dnode_of_data *dn); int truncate_blocks(struct inode *inode, u64 from, bool lock); int f2fs_truncate(struct inode *inode); -int f2fs_getattr(struct vfsmount *mnt, struct dentry *dentry, - struct kstat *stat); +int f2fs_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags); int f2fs_setattr(struct dentry *dentry, struct iattr *attr); int truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end); int truncate_data_blocks_range(struct dnode_of_data *dn, int count); diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 78e65288f2b2..5f7317875a67 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -633,10 +633,10 @@ int f2fs_truncate(struct inode *inode) return 0; } -int f2fs_getattr(struct vfsmount *mnt, - struct dentry *dentry, struct kstat *stat) +int f2fs_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags) { - struct inode *inode = d_inode(dentry); + struct inode *inode = d_inode(path->dentry); generic_fillattr(inode, stat); stat->blocks <<= 3; return 0; diff --git a/fs/fat/fat.h b/fs/fat/fat.h index e6b764a17a9c..051dac1ce3be 100644 --- a/fs/fat/fat.h +++ b/fs/fat/fat.h @@ -364,8 +364,8 @@ extern const struct file_operations fat_file_operations; extern const struct inode_operations fat_file_inode_operations; extern int fat_setattr(struct dentry *dentry, struct iattr *attr); extern void fat_truncate_blocks(struct inode *inode, loff_t offset); -extern int fat_getattr(struct vfsmount *mnt, struct dentry *dentry, - struct kstat *stat); +extern int fat_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags); extern int fat_file_fsync(struct file *file, loff_t start, loff_t end, int datasync); diff --git a/fs/fat/file.c b/fs/fat/file.c index 3d04b124bce0..4724cc9ad650 100644 --- a/fs/fat/file.c +++ b/fs/fat/file.c @@ -365,9 +365,10 @@ void fat_truncate_blocks(struct inode *inode, loff_t offset) fat_flush_inodes(inode->i_sb, inode, NULL); } -int fat_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat) +int fat_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags) { - struct inode *inode = d_inode(dentry); + struct inode *inode = d_inode(path->dentry); generic_fillattr(inode, stat); stat->blksize = MSDOS_SB(inode->i_sb)->cluster_size; diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c index 811fd8929a18..beb3d64f16e2 100644 --- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -1777,10 +1777,10 @@ static int fuse_setattr(struct dentry *entry, struct iattr *attr) return ret; } -static int fuse_getattr(struct vfsmount *mnt, struct dentry *entry, - struct kstat *stat) +static int fuse_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags) { - struct inode *inode = d_inode(entry); + struct inode *inode = d_inode(path->dentry); struct fuse_conn *fc = get_fuse_conn(inode); if (!fuse_allow_current_process(fc)) diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c index 9d28f55fbd1d..e279c3ce27be 100644 --- a/fs/gfs2/inode.c +++ b/fs/gfs2/inode.c @@ -1960,9 +1960,10 @@ out: /** * gfs2_getattr - Read out an inode's attributes - * @mnt: The vfsmount the inode is being accessed from - * @dentry: The dentry to stat + * @path: Object to query * @stat: The inode's stats + * @request_mask: Mask of STATX_xxx flags indicating the caller's interests + * @flags: AT_STATX_xxx setting * * This may be called from the VFS directly, or from within GFS2 with the * inode locked, so we look to see if the glock is already locked and only @@ -1973,10 +1974,10 @@ out: * Returns: errno */ -static int gfs2_getattr(struct vfsmount *mnt, struct dentry *dentry, - struct kstat *stat) +static int gfs2_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags) { - struct inode *inode = d_inode(dentry); + struct inode *inode = d_inode(path->dentry); struct gfs2_inode *ip = GFS2_I(inode); struct gfs2_holder gh; int error; diff --git a/fs/kernfs/inode.c b/fs/kernfs/inode.c index ac9e108ce1ea..fb4b4a79a0d6 100644 --- a/fs/kernfs/inode.c +++ b/fs/kernfs/inode.c @@ -200,11 +200,11 @@ static void kernfs_refresh_inode(struct kernfs_node *kn, struct inode *inode) set_nlink(inode, kn->dir.subdirs + 2); } -int kernfs_iop_getattr(struct vfsmount *mnt, struct dentry *dentry, - struct kstat *stat) +int kernfs_iop_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int query_flags) { - struct kernfs_node *kn = dentry->d_fsdata; - struct inode *inode = d_inode(dentry); + struct kernfs_node *kn = path->dentry->d_fsdata; + struct inode *inode = d_inode(path->dentry); mutex_lock(&kernfs_mutex); kernfs_refresh_inode(kn, inode); diff --git a/fs/kernfs/kernfs-internal.h b/fs/kernfs/kernfs-internal.h index 3100987cf8ba..2d5144ab4251 100644 --- a/fs/kernfs/kernfs-internal.h +++ b/fs/kernfs/kernfs-internal.h @@ -80,8 +80,8 @@ extern const struct xattr_handler *kernfs_xattr_handlers[]; void kernfs_evict_inode(struct inode *inode); int kernfs_iop_permission(struct inode *inode, int mask); int kernfs_iop_setattr(struct dentry *dentry, struct iattr *iattr); -int kernfs_iop_getattr(struct vfsmount *mnt, struct dentry *dentry, - struct kstat *stat); +int kernfs_iop_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int query_flags); ssize_t kernfs_iop_listxattr(struct dentry *dentry, char *buf, size_t size); /* diff --git a/fs/libfs.c b/fs/libfs.c index 217896ca4fae..a8b62e5d43a9 100644 --- a/fs/libfs.c +++ b/fs/libfs.c @@ -21,10 +21,10 @@ #include "internal.h" -int simple_getattr(struct vfsmount *mnt, struct dentry *dentry, - struct kstat *stat) +int simple_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int query_flags) { - struct inode *inode = d_inode(dentry); + struct inode *inode = d_inode(path->dentry); generic_fillattr(inode, stat); stat->blocks = inode->i_mapping->nrpages << (PAGE_SHIFT - 9); return 0; @@ -1144,10 +1144,10 @@ static struct dentry *empty_dir_lookup(struct inode *dir, struct dentry *dentry, return ERR_PTR(-ENOENT); } -static int empty_dir_getattr(struct vfsmount *mnt, struct dentry *dentry, - struct kstat *stat) +static int empty_dir_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int query_flags) { - struct inode *inode = d_inode(dentry); + struct inode *inode = d_inode(path->dentry); generic_fillattr(inode, stat); return 0; } diff --git a/fs/minix/inode.c b/fs/minix/inode.c index e7d9bf86d975..6ac76b0434e9 100644 --- a/fs/minix/inode.c +++ b/fs/minix/inode.c @@ -622,11 +622,14 @@ static int minix_write_inode(struct inode *inode, struct writeback_control *wbc) return err; } -int minix_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat) +int minix_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags) { - struct super_block *sb = dentry->d_sb; - generic_fillattr(d_inode(dentry), stat); - if (INODE_VERSION(d_inode(dentry)) == MINIX_V1) + struct super_block *sb = path->dentry->d_sb; + struct inode *inode = d_inode(path->dentry); + + generic_fillattr(inode, stat); + if (INODE_VERSION(inode) == MINIX_V1) stat->blocks = (BLOCK_SIZE / 512) * V1_minix_blocks(stat->size, sb); else stat->blocks = (sb->s_blocksize / 512) * V2_minix_blocks(stat->size, sb); diff --git a/fs/minix/minix.h b/fs/minix/minix.h index 01ad81dcacc5..663d66138d06 100644 --- a/fs/minix/minix.h +++ b/fs/minix/minix.h @@ -51,7 +51,7 @@ extern unsigned long minix_count_free_inodes(struct super_block *sb); extern int minix_new_block(struct inode * inode); extern void minix_free_block(struct inode *inode, unsigned long block); extern unsigned long minix_count_free_blocks(struct super_block *sb); -extern int minix_getattr(struct vfsmount *, struct dentry *, struct kstat *); +extern int minix_getattr(const struct path *, struct kstat *, u32, unsigned int); extern int minix_prepare_chunk(struct page *page, loff_t pos, unsigned len); extern void V1_minix_truncate(struct inode *); diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index 685565b229c3..f489a5a71bd5 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -703,9 +703,10 @@ static bool nfs_need_revalidate_inode(struct inode *inode) return false; } -int nfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat) +int nfs_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int query_flags) { - struct inode *inode = d_inode(dentry); + struct inode *inode = d_inode(path->dentry); int need_atime = NFS_I(inode)->cache_validity & NFS_INO_INVALID_ATIME; int err = 0; @@ -726,17 +727,17 @@ int nfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat) * - NFS never sets MS_NOATIME or MS_NODIRATIME so there is * no point in checking those. */ - if ((mnt->mnt_flags & MNT_NOATIME) || - ((mnt->mnt_flags & MNT_NODIRATIME) && S_ISDIR(inode->i_mode))) + if ((path->mnt->mnt_flags & MNT_NOATIME) || + ((path->mnt->mnt_flags & MNT_NODIRATIME) && S_ISDIR(inode->i_mode))) need_atime = 0; if (need_atime || nfs_need_revalidate_inode(inode)) { struct nfs_server *server = NFS_SERVER(inode); - nfs_readdirplus_parent_cache_miss(dentry); + nfs_readdirplus_parent_cache_miss(path->dentry); err = __nfs_revalidate_inode(server, inode); } else - nfs_readdirplus_parent_cache_hit(dentry); + nfs_readdirplus_parent_cache_hit(path->dentry); if (!err) { generic_fillattr(inode, stat); stat->ino = nfs_compat_user_ino64(NFS_FILEID(inode)); diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c index e49d831c4e85..786f17580582 100644 --- a/fs/nfs/namespace.c +++ b/fs/nfs/namespace.c @@ -178,11 +178,12 @@ out_nofree: } static int -nfs_namespace_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat) +nfs_namespace_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int query_flags) { - if (NFS_FH(d_inode(dentry))->size != 0) - return nfs_getattr(mnt, dentry, stat); - generic_fillattr(d_inode(dentry), stat); + if (NFS_FH(d_inode(path->dentry))->size != 0) + return nfs_getattr(path, stat, request_mask, query_flags); + generic_fillattr(d_inode(path->dentry), stat); return 0; } diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index 382c1fd05b4c..33017d652b1d 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -2301,7 +2301,7 @@ static int get_parent_attributes(struct svc_export *exp, struct kstat *stat) if (path.dentry != path.mnt->mnt_root) break; } - err = vfs_getattr(&path, stat); + err = vfs_getattr(&path, stat, STATX_BASIC_STATS, AT_STATX_SYNC_AS_STAT); path_put(&path); return err; } @@ -2385,7 +2385,7 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp, goto out; } - err = vfs_getattr(&path, &stat); + err = vfs_getattr(&path, &stat, STATX_BASIC_STATS, AT_STATX_SYNC_AS_STAT); if (err) goto out_nfserr; if ((bmval0 & (FATTR4_WORD0_FILES_AVAIL | FATTR4_WORD0_FILES_FREE | diff --git a/fs/nfsd/vfs.h b/fs/nfsd/vfs.h index db98c48c735a..1bbdccecbf3d 100644 --- a/fs/nfsd/vfs.h +++ b/fs/nfsd/vfs.h @@ -135,7 +135,8 @@ static inline __be32 fh_getattr(struct svc_fh *fh, struct kstat *stat) { struct path p = {.mnt = fh->fh_export->ex_path.mnt, .dentry = fh->fh_dentry}; - return nfserrno(vfs_getattr(&p, stat)); + return nfserrno(vfs_getattr(&p, stat, STATX_BASIC_STATS, + AT_STATX_SYNC_AS_STAT)); } static inline int nfsd_create_is_exclusive(int createmode) diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 8836305eb378..bfeb647459d9 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -1306,16 +1306,15 @@ bail: return status; } -int ocfs2_getattr(struct vfsmount *mnt, - struct dentry *dentry, - struct kstat *stat) +int ocfs2_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags) { - struct inode *inode = d_inode(dentry); - struct super_block *sb = dentry->d_sb; + struct inode *inode = d_inode(path->dentry); + struct super_block *sb = path->dentry->d_sb; struct ocfs2_super *osb = sb->s_fs_info; int err; - err = ocfs2_inode_revalidate(dentry); + err = ocfs2_inode_revalidate(path->dentry); if (err) { if (err != -ENOENT) mlog_errno(err); diff --git a/fs/ocfs2/file.h b/fs/ocfs2/file.h index 897fd9a2e51d..1fdc9839cd93 100644 --- a/fs/ocfs2/file.h +++ b/fs/ocfs2/file.h @@ -68,8 +68,8 @@ int ocfs2_zero_extend(struct inode *inode, struct buffer_head *di_bh, int ocfs2_extend_allocation(struct inode *inode, u32 logical_start, u32 clusters_to_add, int mark_unwritten); int ocfs2_setattr(struct dentry *dentry, struct iattr *attr); -int ocfs2_getattr(struct vfsmount *mnt, struct dentry *dentry, - struct kstat *stat); +int ocfs2_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags); int ocfs2_permission(struct inode *inode, int mask); int ocfs2_should_update_atime(struct inode *inode, diff --git a/fs/orangefs/inode.c b/fs/orangefs/inode.c index 5cd617980fbf..a304bf34b212 100644 --- a/fs/orangefs/inode.c +++ b/fs/orangefs/inode.c @@ -245,25 +245,24 @@ out: /* * Obtain attributes of an object given a dentry */ -int orangefs_getattr(struct vfsmount *mnt, - struct dentry *dentry, - struct kstat *kstat) +int orangefs_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags) { int ret = -ENOENT; - struct inode *inode = dentry->d_inode; + struct inode *inode = path->dentry->d_inode; struct orangefs_inode_s *orangefs_inode = NULL; gossip_debug(GOSSIP_INODE_DEBUG, "orangefs_getattr: called on %pd\n", - dentry); + path->dentry); ret = orangefs_inode_getattr(inode, 0, 0); if (ret == 0) { - generic_fillattr(inode, kstat); + generic_fillattr(inode, stat); /* override block size reported to stat */ orangefs_inode = ORANGEFS_I(inode); - kstat->blksize = orangefs_inode->blksize; + stat->blksize = orangefs_inode->blksize; } return ret; } diff --git a/fs/orangefs/orangefs-kernel.h b/fs/orangefs/orangefs-kernel.h index 8948683b367f..5e48a0be9761 100644 --- a/fs/orangefs/orangefs-kernel.h +++ b/fs/orangefs/orangefs-kernel.h @@ -439,9 +439,8 @@ struct inode *orangefs_new_inode(struct super_block *sb, int orangefs_setattr(struct dentry *dentry, struct iattr *iattr); -int orangefs_getattr(struct vfsmount *mnt, - struct dentry *dentry, - struct kstat *kstat); +int orangefs_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags); int orangefs_permission(struct inode *inode, int mask); diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c index a34aa7aa2563..2d4985018fdb 100644 --- a/fs/overlayfs/copy_up.c +++ b/fs/overlayfs/copy_up.c @@ -347,7 +347,8 @@ static int ovl_copy_up_one(struct dentry *parent, struct dentry *dentry, ovl_path_upper(parent, &parentpath); upperdir = parentpath.dentry; - err = vfs_getattr(&parentpath, &pstat); + err = vfs_getattr(&parentpath, &pstat, + STATX_ATIME | STATX_MTIME, AT_STATX_SYNC_AS_STAT); if (err) return err; @@ -410,7 +411,8 @@ int ovl_copy_up_flags(struct dentry *dentry, int flags) } ovl_path_lower(next, &lowerpath); - err = vfs_getattr(&lowerpath, &stat); + err = vfs_getattr(&lowerpath, &stat, + STATX_BASIC_STATS, AT_STATX_SYNC_AS_STAT); /* maybe truncate regular file. this has no effect on dirs */ if (flags & O_TRUNC) stat.size = 0; diff --git a/fs/overlayfs/dir.c b/fs/overlayfs/dir.c index 16e06dd89457..6515796460df 100644 --- a/fs/overlayfs/dir.c +++ b/fs/overlayfs/dir.c @@ -138,9 +138,10 @@ static int ovl_set_opaque(struct dentry *dentry, struct dentry *upperdentry) return err; } -static int ovl_dir_getattr(struct vfsmount *mnt, struct dentry *dentry, - struct kstat *stat) +static int ovl_dir_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags) { + struct dentry *dentry = path->dentry; int err; enum ovl_path_type type; struct path realpath; @@ -148,7 +149,7 @@ static int ovl_dir_getattr(struct vfsmount *mnt, struct dentry *dentry, type = ovl_path_real(dentry, &realpath); old_cred = ovl_override_creds(dentry->d_sb); - err = vfs_getattr(&realpath, stat); + err = vfs_getattr(&realpath, stat, request_mask, flags); revert_creds(old_cred); if (err) return err; @@ -264,7 +265,8 @@ static struct dentry *ovl_clear_empty(struct dentry *dentry, goto out; ovl_path_upper(dentry, &upperpath); - err = vfs_getattr(&upperpath, &stat); + err = vfs_getattr(&upperpath, &stat, + STATX_BASIC_STATS, AT_STATX_SYNC_AS_STAT); if (err) goto out_unlock; diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c index 6639f487f835..f8fe6bf2036d 100644 --- a/fs/overlayfs/inode.c +++ b/fs/overlayfs/inode.c @@ -57,16 +57,17 @@ out: return err; } -static int ovl_getattr(struct vfsmount *mnt, struct dentry *dentry, - struct kstat *stat) +static int ovl_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags) { + struct dentry *dentry = path->dentry; struct path realpath; const struct cred *old_cred; int err; ovl_path_real(dentry, &realpath); old_cred = ovl_override_creds(dentry->d_sb); - err = vfs_getattr(&realpath, stat); + err = vfs_getattr(&realpath, stat, request_mask, flags); revert_creds(old_cred); return err; } diff --git a/fs/proc/base.c b/fs/proc/base.c index 2dae60075f6e..c87b6b9a8a76 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1729,11 +1729,12 @@ out_unlock: return NULL; } -int pid_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat) +int pid_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int query_flags) { - struct inode *inode = d_inode(dentry); + struct inode *inode = d_inode(path->dentry); struct task_struct *task; - struct pid_namespace *pid = dentry->d_sb->s_fs_info; + struct pid_namespace *pid = path->dentry->d_sb->s_fs_info; generic_fillattr(inode, stat); @@ -3516,9 +3517,10 @@ static int proc_task_readdir(struct file *file, struct dir_context *ctx) return 0; } -static int proc_task_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat) +static int proc_task_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int query_flags) { - struct inode *inode = d_inode(dentry); + struct inode *inode = d_inode(path->dentry); struct task_struct *p = get_proc_task(inode); generic_fillattr(inode, stat); diff --git a/fs/proc/generic.c b/fs/proc/generic.c index 06c73904d497..ee27feb34cf4 100644 --- a/fs/proc/generic.c +++ b/fs/proc/generic.c @@ -118,10 +118,10 @@ static int proc_notify_change(struct dentry *dentry, struct iattr *iattr) return 0; } -static int proc_getattr(struct vfsmount *mnt, struct dentry *dentry, - struct kstat *stat) +static int proc_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int query_flags) { - struct inode *inode = d_inode(dentry); + struct inode *inode = d_inode(path->dentry); struct proc_dir_entry *de = PDE(inode); if (de && de->nlink) set_nlink(inode, de->nlink); diff --git a/fs/proc/internal.h b/fs/proc/internal.h index 26a6daf02185..c5ae09b6c726 100644 --- a/fs/proc/internal.h +++ b/fs/proc/internal.h @@ -151,7 +151,7 @@ extern int proc_pid_statm(struct seq_file *, struct pid_namespace *, * base.c */ extern const struct dentry_operations pid_dentry_operations; -extern int pid_getattr(struct vfsmount *, struct dentry *, struct kstat *); +extern int pid_getattr(const struct path *, struct kstat *, u32, unsigned int); extern int proc_setattr(struct dentry *, struct iattr *); extern struct inode *proc_pid_make_inode(struct super_block *, struct task_struct *, umode_t); extern int pid_revalidate(struct dentry *, unsigned int); diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c index 5cbc65d7a1e1..d72fc40241d9 100644 --- a/fs/proc/proc_net.c +++ b/fs/proc/proc_net.c @@ -141,10 +141,10 @@ static struct dentry *proc_tgid_net_lookup(struct inode *dir, return de; } -static int proc_tgid_net_getattr(struct vfsmount *mnt, struct dentry *dentry, - struct kstat *stat) +static int proc_tgid_net_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int query_flags) { - struct inode *inode = d_inode(dentry); + struct inode *inode = d_inode(path->dentry); struct net *net; net = get_proc_task_net(inode); diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c index 3d203b1f5a02..8f91ec66baa3 100644 --- a/fs/proc/proc_sysctl.c +++ b/fs/proc/proc_sysctl.c @@ -802,9 +802,10 @@ static int proc_sys_setattr(struct dentry *dentry, struct iattr *attr) return 0; } -static int proc_sys_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat) +static int proc_sys_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int query_flags) { - struct inode *inode = d_inode(dentry); + struct inode *inode = d_inode(path->dentry); struct ctl_table_header *head = grab_header(inode); struct ctl_table *table = PROC_I(inode)->sysctl_entry; diff --git a/fs/proc/root.c b/fs/proc/root.c index a50ba388255f..deecb397daa3 100644 --- a/fs/proc/root.c +++ b/fs/proc/root.c @@ -151,10 +151,10 @@ void __init proc_root_init(void) proc_sys_init(); } -static int proc_root_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat -) +static int proc_root_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int query_flags) { - generic_fillattr(d_inode(dentry), stat); + generic_fillattr(d_inode(path->dentry), stat); stat->nlink = proc_root.nlink + nr_processes(); return 0; } diff --git a/fs/stat.c b/fs/stat.c index 95bd41762770..fa0be59340cc 100644 --- a/fs/stat.c +++ b/fs/stat.c @@ -19,6 +19,15 @@ #include <linux/uaccess.h> #include <asm/unistd.h> +/** + * generic_fillattr - Fill in the basic attributes from the inode struct + * @inode: Inode to use as the source + * @stat: Where to fill in the attributes + * + * Fill in the basic attributes in the kstat structure from data that's to be + * found on the VFS inode structure. This is the default if no getattr inode + * operation is supplied. + */ void generic_fillattr(struct inode *inode, struct kstat *stat) { stat->dev = inode->i_sb->s_dev; @@ -34,81 +43,147 @@ void generic_fillattr(struct inode *inode, struct kstat *stat) stat->ctime = inode->i_ctime; stat->blksize = i_blocksize(inode); stat->blocks = inode->i_blocks; -} + if (IS_NOATIME(inode)) + stat->result_mask &= ~STATX_ATIME; + if (IS_AUTOMOUNT(inode)) + stat->attributes |= STATX_ATTR_AUTOMOUNT; +} EXPORT_SYMBOL(generic_fillattr); /** * vfs_getattr_nosec - getattr without security checks * @path: file to get attributes from * @stat: structure to return attributes in + * @request_mask: STATX_xxx flags indicating what the caller wants + * @query_flags: Query mode (KSTAT_QUERY_FLAGS) * * Get attributes without calling security_inode_getattr. * * Currently the only caller other than vfs_getattr is internal to the - * filehandle lookup code, which uses only the inode number and returns - * no attributes to any user. Any other code probably wants - * vfs_getattr. + * filehandle lookup code, which uses only the inode number and returns no + * attributes to any user. Any other code probably wants vfs_getattr. */ -int vfs_getattr_nosec(struct path *path, struct kstat *stat) +int vfs_getattr_nosec(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int query_flags) { struct inode *inode = d_backing_inode(path->dentry); + memset(stat, 0, sizeof(*stat)); + stat->result_mask |= STATX_BASIC_STATS; + request_mask &= STATX_ALL; + query_flags &= KSTAT_QUERY_FLAGS; if (inode->i_op->getattr) - return inode->i_op->getattr(path->mnt, path->dentry, stat); + return inode->i_op->getattr(path, stat, request_mask, + query_flags); generic_fillattr(inode, stat); return 0; } - EXPORT_SYMBOL(vfs_getattr_nosec); -int vfs_getattr(struct path *path, struct kstat *stat) +/* + * vfs_getattr - Get the enhanced basic attributes of a file + * @path: The file of interest + * @stat: Where to return the statistics + * @request_mask: STATX_xxx flags indicating what the caller wants + * @query_flags: Query mode (KSTAT_QUERY_FLAGS) + * + * Ask the filesystem for a file's attributes. The caller must indicate in + * request_mask and query_flags to indicate what they want. + * + * If the file is remote, the filesystem can be forced to update the attributes + * from the backing store by passing AT_STATX_FORCE_SYNC in query_flags or can + * suppress the update by passing AT_STATX_DONT_SYNC. + * + * Bits must have been set in request_mask to indicate which attributes the + * caller wants retrieving. Any such attribute not requested may be returned + * anyway, but the value may be approximate, and, if remote, may not have been + * synchronised with the server. + * + * 0 will be returned on success, and a -ve error code if unsuccessful. + */ +int vfs_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int query_flags) { int retval; retval = security_inode_getattr(path); if (retval) return retval; - return vfs_getattr_nosec(path, stat); + return vfs_getattr_nosec(path, stat, request_mask, query_flags); } - EXPORT_SYMBOL(vfs_getattr); -int vfs_fstat(unsigned int fd, struct kstat *stat) +/** + * vfs_statx_fd - Get the enhanced basic attributes by file descriptor + * @fd: The file descriptor referring to the file of interest + * @stat: The result structure to fill in. + * @request_mask: STATX_xxx flags indicating what the caller wants + * @query_flags: Query mode (KSTAT_QUERY_FLAGS) + * + * This function is a wrapper around vfs_getattr(). The main difference is + * that it uses a file descriptor to determine the file location. + * + * 0 will be returned on success, and a -ve error code if unsuccessful. + */ +int vfs_statx_fd(unsigned int fd, struct kstat *stat, + u32 request_mask, unsigned int query_flags) { struct fd f = fdget_raw(fd); int error = -EBADF; if (f.file) { - error = vfs_getattr(&f.file->f_path, stat); + error = vfs_getattr(&f.file->f_path, stat, + request_mask, query_flags); fdput(f); } return error; } -EXPORT_SYMBOL(vfs_fstat); +EXPORT_SYMBOL(vfs_statx_fd); -int vfs_fstatat(int dfd, const char __user *filename, struct kstat *stat, - int flag) +/** + * vfs_statx - Get basic and extra attributes by filename + * @dfd: A file descriptor representing the base dir for a relative filename + * @filename: The name of the file of interest + * @flags: Flags to control the query + * @stat: The result structure to fill in. + * @request_mask: STATX_xxx flags indicating what the caller wants + * + * This function is a wrapper around vfs_getattr(). The main difference is + * that it uses a filename and base directory to determine the file location. + * Additionally, the use of AT_SYMLINK_NOFOLLOW in flags will prevent a symlink + * at the given name from being referenced. + * + * The caller must have preset stat->request_mask as for vfs_getattr(). The + * flags are also used to load up stat->query_flags. + * + * 0 will be returned on success, and a -ve error code if unsuccessful. + */ +int vfs_statx(int dfd, const char __user *filename, int flags, + struct kstat *stat, u32 request_mask) { struct path path; int error = -EINVAL; - unsigned int lookup_flags = 0; + unsigned int lookup_flags = LOOKUP_FOLLOW | LOOKUP_AUTOMOUNT; - if ((flag & ~(AT_SYMLINK_NOFOLLOW | AT_NO_AUTOMOUNT | - AT_EMPTY_PATH)) != 0) - goto out; + if ((flags & ~(AT_SYMLINK_NOFOLLOW | AT_NO_AUTOMOUNT | + AT_EMPTY_PATH | KSTAT_QUERY_FLAGS)) != 0) + return -EINVAL; - if (!(flag & AT_SYMLINK_NOFOLLOW)) - lookup_flags |= LOOKUP_FOLLOW; - if (flag & AT_EMPTY_PATH) + if (flags & AT_SYMLINK_NOFOLLOW) + lookup_flags &= ~LOOKUP_FOLLOW; + if (flags & AT_NO_AUTOMOUNT) + lookup_flags &= ~LOOKUP_AUTOMOUNT; + if (flags & AT_EMPTY_PATH) lookup_flags |= LOOKUP_EMPTY; + retry: error = user_path_at(dfd, filename, lookup_flags, &path); if (error) goto out; - error = vfs_getattr(&path, stat); + error = vfs_getattr(&path, stat, request_mask, flags); path_put(&path); if (retry_estale(error, lookup_flags)) { lookup_flags |= LOOKUP_REVAL; @@ -117,19 +192,7 @@ retry: out: return error; } -EXPORT_SYMBOL(vfs_fstatat); - -int vfs_stat(const char __user *name, struct kstat *stat) -{ - return vfs_fstatat(AT_FDCWD, name, stat, 0); -} -EXPORT_SYMBOL(vfs_stat); - -int vfs_lstat(const char __user *name, struct kstat *stat) -{ - return vfs_fstatat(AT_FDCWD, name, stat, AT_SYMLINK_NOFOLLOW); -} -EXPORT_SYMBOL(vfs_lstat); +EXPORT_SYMBOL(vfs_statx); #ifdef __ARCH_WANT_OLD_STAT @@ -142,7 +205,7 @@ static int cp_old_stat(struct kstat *stat, struct __old_kernel_stat __user * sta { static int warncount = 5; struct __old_kernel_stat tmp; - + if (warncount > 0) { warncount--; printk(KERN_WARNING "VFS: Warning: %s using old stat() call. Recompile your binary.\n", @@ -167,7 +230,7 @@ static int cp_old_stat(struct kstat *stat, struct __old_kernel_stat __user * sta #if BITS_PER_LONG == 32 if (stat->size > MAX_NON_LFS) return -EOVERFLOW; -#endif +#endif tmp.st_size = stat->size; tmp.st_atime = stat->atime.tv_sec; tmp.st_mtime = stat->mtime.tv_sec; @@ -446,6 +509,81 @@ SYSCALL_DEFINE4(fstatat64, int, dfd, const char __user *, filename, } #endif /* __ARCH_WANT_STAT64 || __ARCH_WANT_COMPAT_STAT64 */ +static inline int __put_timestamp(struct timespec *kts, + struct statx_timestamp __user *uts) +{ + return (__put_user(kts->tv_sec, &uts->tv_sec ) || + __put_user(kts->tv_nsec, &uts->tv_nsec ) || + __put_user(0, &uts->__reserved )); +} + +/* + * Set the statx results. + */ +static long statx_set_result(struct kstat *stat, struct statx __user *buffer) +{ + uid_t uid = from_kuid_munged(current_user_ns(), stat->uid); + gid_t gid = from_kgid_munged(current_user_ns(), stat->gid); + + if (__put_user(stat->result_mask, &buffer->stx_mask ) || + __put_user(stat->mode, &buffer->stx_mode ) || + __clear_user(&buffer->__spare0, sizeof(buffer->__spare0)) || + __put_user(stat->nlink, &buffer->stx_nlink ) || + __put_user(uid, &buffer->stx_uid ) || + __put_user(gid, &buffer->stx_gid ) || + __put_user(stat->attributes, &buffer->stx_attributes ) || + __put_user(stat->blksize, &buffer->stx_blksize ) || + __put_user(MAJOR(stat->rdev), &buffer->stx_rdev_major ) || + __put_user(MINOR(stat->rdev), &buffer->stx_rdev_minor ) || + __put_user(MAJOR(stat->dev), &buffer->stx_dev_major ) || + __put_user(MINOR(stat->dev), &buffer->stx_dev_minor ) || + __put_timestamp(&stat->atime, &buffer->stx_atime ) || + __put_timestamp(&stat->btime, &buffer->stx_btime ) || + __put_timestamp(&stat->ctime, &buffer->stx_ctime ) || + __put_timestamp(&stat->mtime, &buffer->stx_mtime ) || + __put_user(stat->ino, &buffer->stx_ino ) || + __put_user(stat->size, &buffer->stx_size ) || + __put_user(stat->blocks, &buffer->stx_blocks ) || + __clear_user(&buffer->__spare1, sizeof(buffer->__spare1)) || + __clear_user(&buffer->__spare2, sizeof(buffer->__spare2))) + return -EFAULT; + + return 0; +} + +/** + * sys_statx - System call to get enhanced stats + * @dfd: Base directory to pathwalk from *or* fd to stat. + * @filename: File to stat *or* NULL. + * @flags: AT_* flags to control pathwalk. + * @mask: Parts of statx struct actually required. + * @buffer: Result buffer. + * + * Note that if filename is NULL, then it does the equivalent of fstat() using + * dfd to indicate the file of interest. + */ +SYSCALL_DEFINE5(statx, + int, dfd, const char __user *, filename, unsigned, flags, + unsigned int, mask, + struct statx __user *, buffer) +{ + struct kstat stat; + int error; + + if ((flags & AT_STATX_SYNC_TYPE) == AT_STATX_SYNC_TYPE) + return -EINVAL; + if (!access_ok(VERIFY_WRITE, buffer, sizeof(*buffer))) + return -EFAULT; + + if (filename) + error = vfs_statx(dfd, filename, flags, &stat, mask); + else + error = vfs_statx_fd(dfd, &stat, mask, flags); + if (error) + return error; + return statx_set_result(&stat, buffer); +} + /* Caller is here responsible for sufficient locking (ie. inode->i_lock) */ void __inode_add_bytes(struct inode *inode, loff_t bytes) { diff --git a/fs/sysv/itree.c b/fs/sysv/itree.c index 08d3e630b49c..83809f5b5eca 100644 --- a/fs/sysv/itree.c +++ b/fs/sysv/itree.c @@ -440,10 +440,11 @@ static unsigned sysv_nblocks(struct super_block *s, loff_t size) return blocks; } -int sysv_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat) +int sysv_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags) { - struct super_block *s = dentry->d_sb; - generic_fillattr(d_inode(dentry), stat); + struct super_block *s = path->dentry->d_sb; + generic_fillattr(d_inode(path->dentry), stat); stat->blocks = (s->s_blocksize / 512) * sysv_nblocks(s, stat->size); stat->blksize = s->s_blocksize; return 0; diff --git a/fs/sysv/sysv.h b/fs/sysv/sysv.h index 6c212288adcb..1e7e27c729af 100644 --- a/fs/sysv/sysv.h +++ b/fs/sysv/sysv.h @@ -142,7 +142,7 @@ extern struct inode *sysv_iget(struct super_block *, unsigned int); extern int sysv_write_inode(struct inode *, struct writeback_control *wbc); extern int sysv_sync_inode(struct inode *); extern void sysv_set_inode(struct inode *, dev_t); -extern int sysv_getattr(struct vfsmount *, struct dentry *, struct kstat *); +extern int sysv_getattr(const struct path *, struct kstat *, u32, unsigned int); extern int sysv_init_icache(void); extern void sysv_destroy_icache(void); diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c index 528369f3e472..30825d882aa9 100644 --- a/fs/ubifs/dir.c +++ b/fs/ubifs/dir.c @@ -1622,11 +1622,11 @@ static int ubifs_rename(struct inode *old_dir, struct dentry *old_dentry, return do_rename(old_dir, old_dentry, new_dir, new_dentry, flags); } -int ubifs_getattr(struct vfsmount *mnt, struct dentry *dentry, - struct kstat *stat) +int ubifs_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags) { loff_t size; - struct inode *inode = d_inode(dentry); + struct inode *inode = d_inode(path->dentry); struct ubifs_inode *ui = ubifs_inode(inode); mutex_lock(&ui->ui_mutex); diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h index f0c86f076535..4d57e488038e 100644 --- a/fs/ubifs/ubifs.h +++ b/fs/ubifs/ubifs.h @@ -1749,8 +1749,8 @@ int ubifs_update_time(struct inode *inode, struct timespec *time, int flags); /* dir.c */ struct inode *ubifs_new_inode(struct ubifs_info *c, struct inode *dir, umode_t mode); -int ubifs_getattr(struct vfsmount *mnt, struct dentry *dentry, - struct kstat *stat); +int ubifs_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags); int ubifs_check_dir_empty(struct inode *dir); /* xattr.c */ diff --git a/fs/udf/symlink.c b/fs/udf/symlink.c index f7dfef53f739..6023c97c6da2 100644 --- a/fs/udf/symlink.c +++ b/fs/udf/symlink.c @@ -152,9 +152,10 @@ out_unmap: return err; } -static int udf_symlink_getattr(struct vfsmount *mnt, struct dentry *dentry, - struct kstat *stat) +static int udf_symlink_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags) { + struct dentry *dentry = path->dentry; struct inode *inode = d_backing_inode(dentry); struct page *page; diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c index 22c16155f1b4..229cc6a6d8ef 100644 --- a/fs/xfs/xfs_iops.c +++ b/fs/xfs/xfs_iops.c @@ -489,11 +489,12 @@ xfs_vn_get_link_inline( STATIC int xfs_vn_getattr( - struct vfsmount *mnt, - struct dentry *dentry, - struct kstat *stat) + const struct path *path, + struct kstat *stat, + u32 request_mask, + unsigned int query_flags) { - struct inode *inode = d_inode(dentry); + struct inode *inode = d_inode(path->dentry); struct xfs_inode *ip = XFS_I(inode); struct xfs_mount *mp = ip->i_mount; |