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[XFS] kill xfs_getattr

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It's currently used by the ACL code to read di_mode/di_uid, but these are
simple 32bit scalar values we can just read directly without locking.

SGI-PV: 976035
SGI-Modid: xfs-linux-melb:xfs-kern:30897a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
This commit is contained in:
Christoph Hellwig 2008-04-22 17:33:33 +10:00 committed by Lachlan McIlroy
parent 42173f6860
commit 4e5dbb3498
3 changed files with 7 additions and 160 deletions
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40
fs/xfs/xfs_acl.c
View File

@ -238,15 +238,8 @@ xfs_acl_vget(
error = EINVAL;
goto out;
}
if (kind == _ACL_TYPE_ACCESS) {
bhv_vattr_t va;
va.va_mask = XFS_AT_MODE;
error = xfs_getattr(xfs_vtoi(vp), &va, 0);
if (error)
goto out;
xfs_acl_sync_mode(va.va_mode, xfs_acl);
}
if (kind == _ACL_TYPE_ACCESS)
xfs_acl_sync_mode(xfs_vtoi(vp)->i_d.di_mode, xfs_acl);
error = -posix_acl_xfs_to_xattr(xfs_acl, ext_acl, size);
}
out:
@ -373,23 +366,15 @@ xfs_acl_allow_set(
bhv_vnode_t *vp,
int kind)
{
xfs_inode_t *ip = xfs_vtoi(vp);
bhv_vattr_t va;
int error;
if (vp->i_flags & (S_IMMUTABLE|S_APPEND))
return EPERM;
if (kind == _ACL_TYPE_DEFAULT && !S_ISDIR(vp->i_mode))
return ENOTDIR;
if (vp->i_sb->s_flags & MS_RDONLY)
return EROFS;
va.va_mask = XFS_AT_UID;
error = xfs_getattr(ip, &va, 0);
if (error)
return error;
if (va.va_uid != current->fsuid && !capable(CAP_FOWNER))
if (xfs_vtoi(vp)->i_d.di_uid != current->fsuid && !capable(CAP_FOWNER))
return EPERM;
return error;
return 0;
}
/*
@ -643,7 +628,6 @@ xfs_acl_vtoacl(
xfs_acl_t *access_acl,
xfs_acl_t *default_acl)
{
bhv_vattr_t va;
int error = 0;
if (access_acl) {
@ -652,16 +636,10 @@ xfs_acl_vtoacl(
* be obtained for some reason, invalidate the access ACL.
*/
xfs_acl_get_attr(vp, access_acl, _ACL_TYPE_ACCESS, 0, &error);
if (!error) {
/* Got the ACL, need the mode... */
va.va_mask = XFS_AT_MODE;
error = xfs_getattr(xfs_vtoi(vp), &va, 0);
}
if (error)
access_acl->acl_cnt = XFS_ACL_NOT_PRESENT;
else /* We have a good ACL and the file mode, synchronize. */
xfs_acl_sync_mode(va.va_mode, access_acl);
xfs_acl_sync_mode(xfs_vtoi(vp)->i_d.di_mode, access_acl);
}
if (default_acl) {
@ -744,7 +722,7 @@ xfs_acl_setmode(
bhv_vattr_t va;
xfs_acl_entry_t *ap;
xfs_acl_entry_t *gap = NULL;
int i, error, nomask = 1;
int i, nomask = 1;
*basicperms = 1;
@ -756,11 +734,7 @@ xfs_acl_setmode(
* mode. The m:: bits take precedence over the g:: bits.
*/
va.va_mask = XFS_AT_MODE;
error = xfs_getattr(xfs_vtoi(vp), &va, 0);
if (error)
return error;
va.va_mask = XFS_AT_MODE;
va.va_mode = xfs_vtoi(vp)->i_d.di_mode;
va.va_mode &= ~(S_IRWXU|S_IRWXG|S_IRWXO);
ap = acl->acl_entry;
for (i = 0; i < acl->acl_cnt; ++i) {

126
fs/xfs/xfs_vnodeops.c
View File

@ -75,132 +75,6 @@ xfs_open(
return 0;
}
/*
* xfs_getattr
*/
int
xfs_getattr(
xfs_inode_t *ip,
bhv_vattr_t *vap,
int flags)
{
bhv_vnode_t *vp = XFS_ITOV(ip);
xfs_mount_t *mp = ip->i_mount;
xfs_itrace_entry(ip);
if (XFS_FORCED_SHUTDOWN(mp))
return XFS_ERROR(EIO);
if (!(flags & ATTR_LAZY))
xfs_ilock(ip, XFS_ILOCK_SHARED);
vap->va_size = XFS_ISIZE(ip);
if (vap->va_mask == XFS_AT_SIZE)
goto all_done;
vap->va_nblocks =
XFS_FSB_TO_BB(mp, ip->i_d.di_nblocks + ip->i_delayed_blks);
vap->va_nodeid = ip->i_ino;
#if XFS_BIG_INUMS
vap->va_nodeid += mp->m_inoadd;
#endif
vap->va_nlink = ip->i_d.di_nlink;
/*
* Quick exit for non-stat callers
*/
if ((vap->va_mask &
~(XFS_AT_SIZE|XFS_AT_FSID|XFS_AT_NODEID|
XFS_AT_NLINK|XFS_AT_BLKSIZE)) == 0)
goto all_done;
/*
* Copy from in-core inode.
*/
vap->va_mode = ip->i_d.di_mode;
vap->va_uid = ip->i_d.di_uid;
vap->va_gid = ip->i_d.di_gid;
vap->va_projid = ip->i_d.di_projid;
/*
* Check vnode type block/char vs. everything else.
*/
switch (ip->i_d.di_mode & S_IFMT) {
case S_IFBLK:
case S_IFCHR:
vap->va_rdev = ip->i_df.if_u2.if_rdev;
vap->va_blocksize = BLKDEV_IOSIZE;
break;
default:
vap->va_rdev = 0;
if (!(XFS_IS_REALTIME_INODE(ip))) {
vap->va_blocksize = xfs_preferred_iosize(mp);
} else {
/*
* If the file blocks are being allocated from a
* realtime partition, then return the inode's
* realtime extent size or the realtime volume's
* extent size.
*/
vap->va_blocksize =
xfs_get_extsz_hint(ip) << mp->m_sb.sb_blocklog;
}
break;
}
vn_atime_to_timespec(vp, &vap->va_atime);
vap->va_mtime.tv_sec = ip->i_d.di_mtime.t_sec;
vap->va_mtime.tv_nsec = ip->i_d.di_mtime.t_nsec;
vap->va_ctime.tv_sec = ip->i_d.di_ctime.t_sec;
vap->va_ctime.tv_nsec = ip->i_d.di_ctime.t_nsec;
/*
* Exit for stat callers. See if any of the rest of the fields
* to be filled in are needed.
*/
if ((vap->va_mask &
(XFS_AT_XFLAGS|XFS_AT_EXTSIZE|XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|
XFS_AT_GENCOUNT|XFS_AT_VCODE)) == 0)
goto all_done;
/*
* Convert di_flags to xflags.
*/
vap->va_xflags = xfs_ip2xflags(ip);
/*
* Exit for inode revalidate. See if any of the rest of
* the fields to be filled in are needed.
*/
if ((vap->va_mask &
(XFS_AT_EXTSIZE|XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|
XFS_AT_GENCOUNT|XFS_AT_VCODE)) == 0)
goto all_done;
vap->va_extsize = ip->i_d.di_extsize << mp->m_sb.sb_blocklog;
vap->va_nextents =
(ip->i_df.if_flags & XFS_IFEXTENTS) ?
ip->i_df.if_bytes / sizeof(xfs_bmbt_rec_t) :
ip->i_d.di_nextents;
if (ip->i_afp)
vap->va_anextents =
(ip->i_afp->if_flags & XFS_IFEXTENTS) ?
ip->i_afp->if_bytes / sizeof(xfs_bmbt_rec_t) :
ip->i_d.di_anextents;
else
vap->va_anextents = 0;
vap->va_gen = ip->i_d.di_gen;
all_done:
if (!(flags & ATTR_LAZY))
xfs_iunlock(ip, XFS_ILOCK_SHARED);
return 0;
}
/*
* xfs_setattr
*/

1
fs/xfs/xfs_vnodeops.h
View File

@ -15,7 +15,6 @@ struct xfs_iomap;
int xfs_open(struct xfs_inode *ip);
int xfs_getattr(struct xfs_inode *ip, struct bhv_vattr *vap, int flags);
int xfs_setattr(struct xfs_inode *ip, struct bhv_vattr *vap, int flags,
struct cred *credp);
int xfs_readlink(struct xfs_inode *ip, char *link);