diff options
Diffstat (limited to 'module/zfs/zfs_vnops.c')
| -rw-r--r-- | module/zfs/zfs_vnops.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/module/zfs/zfs_vnops.c b/module/zfs/zfs_vnops.c index ae61b4304..dd9f4d9e5 100644 --- a/module/zfs/zfs_vnops.c +++ b/module/zfs/zfs_vnops.c @@ -2283,6 +2283,44 @@ zfs_getattr(struct inode *ip, vattr_t *vap, int flags, cred_t *cr) EXPORT_SYMBOL(zfs_getattr); /* + * Get the basic file attributes and place them in the provided kstat + * structure. The inode is assumed to be the authoritative source + * for most of the attributes. However, the znode currently has the + * authoritative atime, blksize, and block count. + * + * IN: ip - inode of file. + * + * OUT: sp - kstat values. + * + * RETURN: 0 (always succeeds) + */ +/* ARGSUSED */ +int +zfs_getattr_fast(struct inode *ip, struct kstat *sp) +{ + znode_t *zp = ITOZ(ip); + zfs_sb_t *zsb = ITOZSB(ip); + + mutex_enter(&zp->z_lock); + + generic_fillattr(ip, sp); + ZFS_TIME_DECODE(&sp->atime, zp->z_atime); + + sa_object_size(zp->z_sa_hdl, (uint32_t *)&sp->blksize, &sp->blocks); + if (unlikely(zp->z_blksz == 0)) { + /* + * Block size hasn't been set; suggest maximal I/O transfers. + */ + sp->blksize = zsb->z_max_blksz; + } + + mutex_exit(&zp->z_lock); + + return (0); +} +EXPORT_SYMBOL(zfs_getattr_fast); + +/* * Set the file attributes to the values contained in the * vattr structure. * |