diff options
author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-17 09:04:11 -0700 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-17 09:04:11 -0700 |
commit | 347c53dca73fca317d57781f510f5ff4f6c0d0d7 (patch) | |
tree | cdc405ac049751da4d76085ce58750b6b2a22326 /fs/xfs/linux-2.6/xfs_ioctl.c | |
parent | 5c8e191e8437616a498a8e1cc0af3dd0d32bbff2 (diff) | |
parent | 7f015072348a14f16d548be557ee58c5c55df0aa (diff) |
Merge branch 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6
* 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6: (59 commits)
[XFS] eagerly remove vmap mappings to avoid upsetting Xen
[XFS] simplify validata_fields
[XFS] no longer using io_vnode, as was remaining from 23 cherrypick
[XFS] Remove STATIC which was missing from prior manual merge
[XFS] Put back the QUEUE_ORDERED_NONE test in the barrier check.
[XFS] Turn off XBF_ASYNC flag before re-reading superblock.
[XFS] avoid race in sync_inodes() that can fail to write out all dirty data
[XFS] This fix prevents bulkstat from spinning in an infinite loop.
[XFS] simplify xfs_create/mknod/symlink prototype
[XFS] avoid xfs_getattr in XFS_IOC_FSGETXATTR ioctl
[XFS] get_bulkall() could return incorrect inode state
[XFS] Kill unused IOMAP_EOF flag
[XFS] fix when DMAPI mount option processing happens
[XFS] ensure file size is logged on synchronous writes
[XFS] growlock should be a mutex
[XFS] replace some large xfs_log_priv.h macros by proper functions
[XFS] kill struct bhv_vfs
[XFS] move syncing related members from struct bhv_vfs to struct xfs_mount
[XFS] kill the vfs_flags member in struct bhv_vfs
[XFS] kill the vfs_fsid and vfs_altfsid members in struct bhv_vfs
...
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_ioctl.c')
-rw-r--r-- | fs/xfs/linux-2.6/xfs_ioctl.c | 242 |
1 files changed, 133 insertions, 109 deletions
diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c index 5917808abbd..ffec630e7db 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl.c +++ b/fs/xfs/linux-2.6/xfs_ioctl.c @@ -47,6 +47,7 @@ #include "xfs_utils.h" #include "xfs_dfrag.h" #include "xfs_fsops.h" +#include "xfs_vnodeops.h" #include <linux/capability.h> #include <linux/dcache.h> @@ -137,7 +138,8 @@ xfs_find_handle( vp = vn_from_inode(inode); /* now we can grab the fsid */ - memcpy(&handle.ha_fsid, vp->v_vfsp->vfs_altfsid, sizeof(xfs_fsid_t)); + memcpy(&handle.ha_fsid, XFS_I(inode)->i_mount->m_fixedfsid, + sizeof(xfs_fsid_t)); hsize = sizeof(xfs_fsid_t); if (cmd != XFS_IOC_PATH_TO_FSHANDLE) { @@ -349,19 +351,44 @@ xfs_open_by_handle( return new_fd; } +/* + * This is a copy from fs/namei.c:vfs_readlink(), except for removing it's + * unused first argument. + */ +STATIC int +do_readlink( + char __user *buffer, + int buflen, + const char *link) +{ + int len; + + len = PTR_ERR(link); + if (IS_ERR(link)) + goto out; + + len = strlen(link); + if (len > (unsigned) buflen) + len = buflen; + if (copy_to_user(buffer, link, len)) + len = -EFAULT; + out: + return len; +} + + STATIC int xfs_readlink_by_handle( xfs_mount_t *mp, void __user *arg, struct inode *parinode) { - int error; - struct iovec aiov; - struct uio auio; struct inode *inode; xfs_fsop_handlereq_t hreq; bhv_vnode_t *vp; __u32 olen; + void *link; + int error; if (!capable(CAP_SYS_ADMIN)) return -XFS_ERROR(EPERM); @@ -374,29 +401,31 @@ xfs_readlink_by_handle( /* Restrict this handle operation to symlinks only. */ if (!S_ISLNK(inode->i_mode)) { - VN_RELE(vp); - return -XFS_ERROR(EINVAL); + error = -XFS_ERROR(EINVAL); + goto out_iput; } if (copy_from_user(&olen, hreq.ohandlen, sizeof(__u32))) { - VN_RELE(vp); - return -XFS_ERROR(EFAULT); + error = -XFS_ERROR(EFAULT); + goto out_iput; } - aiov.iov_len = olen; - aiov.iov_base = hreq.ohandle; - auio.uio_iov = (struct kvec *)&aiov; - auio.uio_iovcnt = 1; - auio.uio_offset = 0; - auio.uio_segflg = UIO_USERSPACE; - auio.uio_resid = olen; + link = kmalloc(MAXPATHLEN+1, GFP_KERNEL); + if (!link) + goto out_iput; - error = bhv_vop_readlink(vp, &auio, IO_INVIS, NULL); - VN_RELE(vp); + error = -xfs_readlink(XFS_I(inode), link); if (error) - return -error; + goto out_kfree; + error = do_readlink(hreq.ohandle, olen, link); + if (error) + goto out_kfree; - return (olen - auio.uio_resid); + out_kfree: + kfree(link); + out_iput: + iput(inode); + return error; } STATIC int @@ -409,7 +438,6 @@ xfs_fssetdm_by_handle( struct fsdmidata fsd; xfs_fsop_setdm_handlereq_t dmhreq; struct inode *inode; - bhv_desc_t *bdp; bhv_vnode_t *vp; if (!capable(CAP_MKNOD)) @@ -431,8 +459,8 @@ xfs_fssetdm_by_handle( return -XFS_ERROR(EFAULT); } - bdp = bhv_base_unlocked(VN_BHV_HEAD(vp)); - error = xfs_set_dmattrs(bdp, fsd.fsd_dmevmask, fsd.fsd_dmstate, NULL); + error = xfs_set_dmattrs(xfs_vtoi(vp), + fsd.fsd_dmevmask, fsd.fsd_dmstate); VN_RELE(vp); if (error) @@ -470,8 +498,8 @@ xfs_attrlist_by_handle( goto out_vn_rele; cursor = (attrlist_cursor_kern_t *)&al_hreq.pos; - error = bhv_vop_attr_list(vp, kbuf, al_hreq.buflen, al_hreq.flags, - cursor, NULL); + error = xfs_attr_list(XFS_I(inode), kbuf, al_hreq.buflen, + al_hreq.flags, cursor); if (error) goto out_kfree; @@ -488,7 +516,7 @@ xfs_attrlist_by_handle( STATIC int xfs_attrmulti_attr_get( - bhv_vnode_t *vp, + struct inode *inode, char *name, char __user *ubuf, __uint32_t *len, @@ -503,7 +531,7 @@ xfs_attrmulti_attr_get( if (!kbuf) return ENOMEM; - error = bhv_vop_attr_get(vp, name, kbuf, len, flags, NULL); + error = xfs_attr_get(XFS_I(inode), name, kbuf, len, flags, NULL); if (error) goto out_kfree; @@ -517,7 +545,7 @@ xfs_attrmulti_attr_get( STATIC int xfs_attrmulti_attr_set( - bhv_vnode_t *vp, + struct inode *inode, char *name, const char __user *ubuf, __uint32_t len, @@ -526,9 +554,9 @@ xfs_attrmulti_attr_set( char *kbuf; int error = EFAULT; - if (IS_RDONLY(&vp->v_inode)) + if (IS_RDONLY(inode)) return -EROFS; - if (IS_IMMUTABLE(&vp->v_inode) || IS_APPEND(&vp->v_inode)) + if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) return EPERM; if (len > XATTR_SIZE_MAX) return EINVAL; @@ -540,7 +568,7 @@ xfs_attrmulti_attr_set( if (copy_from_user(kbuf, ubuf, len)) goto out_kfree; - error = bhv_vop_attr_set(vp, name, kbuf, len, flags, NULL); + error = xfs_attr_set(XFS_I(inode), name, kbuf, len, flags); out_kfree: kfree(kbuf); @@ -549,15 +577,15 @@ xfs_attrmulti_attr_set( STATIC int xfs_attrmulti_attr_remove( - bhv_vnode_t *vp, + struct inode *inode, char *name, __uint32_t flags) { - if (IS_RDONLY(&vp->v_inode)) + if (IS_RDONLY(inode)) return -EROFS; - if (IS_IMMUTABLE(&vp->v_inode) || IS_APPEND(&vp->v_inode)) + if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) return EPERM; - return bhv_vop_attr_remove(vp, name, flags, NULL); + return xfs_attr_remove(XFS_I(inode), name, flags); } STATIC int @@ -613,17 +641,17 @@ xfs_attrmulti_by_handle( switch (ops[i].am_opcode) { case ATTR_OP_GET: - ops[i].am_error = xfs_attrmulti_attr_get(vp, + ops[i].am_error = xfs_attrmulti_attr_get(inode, attr_name, ops[i].am_attrvalue, &ops[i].am_length, ops[i].am_flags); break; case ATTR_OP_SET: - ops[i].am_error = xfs_attrmulti_attr_set(vp, + ops[i].am_error = xfs_attrmulti_attr_set(inode, attr_name, ops[i].am_attrvalue, ops[i].am_length, ops[i].am_flags); break; case ATTR_OP_REMOVE: - ops[i].am_error = xfs_attrmulti_attr_remove(vp, + ops[i].am_error = xfs_attrmulti_attr_remove(inode, attr_name, ops[i].am_flags); break; default: @@ -649,7 +677,7 @@ xfs_attrmulti_by_handle( STATIC int xfs_ioc_space( - bhv_desc_t *bdp, + struct xfs_inode *ip, struct inode *inode, struct file *filp, int flags, @@ -681,37 +709,37 @@ xfs_ioc_xattr( void __user *arg); STATIC int +xfs_ioc_fsgetxattr( + xfs_inode_t *ip, + int attr, + void __user *arg); + +STATIC int xfs_ioc_getbmap( - bhv_desc_t *bdp, + struct xfs_inode *ip, int flags, unsigned int cmd, void __user *arg); STATIC int xfs_ioc_getbmapx( - bhv_desc_t *bdp, + struct xfs_inode *ip, void __user *arg); int xfs_ioctl( - bhv_desc_t *bdp, - struct inode *inode, + xfs_inode_t *ip, struct file *filp, int ioflags, unsigned int cmd, void __user *arg) { + struct inode *inode = filp->f_path.dentry->d_inode; + bhv_vnode_t *vp = vn_from_inode(inode); + xfs_mount_t *mp = ip->i_mount; int error; - bhv_vnode_t *vp; - xfs_inode_t *ip; - xfs_mount_t *mp; - vp = vn_from_inode(inode); - - vn_trace_entry(vp, "xfs_ioctl", (inst_t *)__return_address); - - ip = XFS_BHVTOI(bdp); - mp = ip->i_mount; + vn_trace_entry(XFS_I(inode), "xfs_ioctl", (inst_t *)__return_address); switch (cmd) { @@ -731,7 +759,7 @@ xfs_ioctl( !capable(CAP_SYS_ADMIN)) return -EPERM; - return xfs_ioc_space(bdp, inode, filp, ioflags, cmd, arg); + return xfs_ioc_space(ip, inode, filp, ioflags, cmd, arg); case XFS_IOC_DIOINFO: { struct dioattr da; @@ -761,11 +789,13 @@ xfs_ioctl( case XFS_IOC_GETVERSION: return put_user(inode->i_generation, (int __user *)arg); + case XFS_IOC_FSGETXATTR: + return xfs_ioc_fsgetxattr(ip, 0, arg); + case XFS_IOC_FSGETXATTRA: + return xfs_ioc_fsgetxattr(ip, 1, arg); case XFS_IOC_GETXFLAGS: case XFS_IOC_SETXFLAGS: - case XFS_IOC_FSGETXATTR: case XFS_IOC_FSSETXATTR: - case XFS_IOC_FSGETXATTRA: return xfs_ioc_xattr(vp, ip, filp, cmd, arg); case XFS_IOC_FSSETDM: { @@ -774,17 +804,17 @@ xfs_ioctl( if (copy_from_user(&dmi, arg, sizeof(dmi))) return -XFS_ERROR(EFAULT); - error = xfs_set_dmattrs(bdp, dmi.fsd_dmevmask, dmi.fsd_dmstate, - NULL); + error = xfs_set_dmattrs(ip, dmi.fsd_dmevmask, + dmi.fsd_dmstate); return -error; } case XFS_IOC_GETBMAP: case XFS_IOC_GETBMAPA: - return xfs_ioc_getbmap(bdp, ioflags, cmd, arg); + return xfs_ioc_getbmap(ip, ioflags, cmd, arg); case XFS_IOC_GETBMAPX: - return xfs_ioc_getbmapx(bdp, arg); + return xfs_ioc_getbmapx(ip, arg); case XFS_IOC_FD_TO_HANDLE: case XFS_IOC_PATH_TO_HANDLE: @@ -944,7 +974,7 @@ xfs_ioctl( if (!capable(CAP_SYS_ADMIN)) return -EPERM; - error = xfs_errortag_clearall(mp); + error = xfs_errortag_clearall(mp, 1); return -error; default: @@ -954,7 +984,7 @@ xfs_ioctl( STATIC int xfs_ioc_space( - bhv_desc_t *bdp, + struct xfs_inode *ip, struct inode *inode, struct file *filp, int ioflags, @@ -982,7 +1012,7 @@ xfs_ioc_space( if (ioflags & IO_INVIS) attr_flags |= ATTR_DMI; - error = xfs_change_file_space(bdp, cmd, &bf, filp->f_pos, + error = xfs_change_file_space(ip, cmd, &bf, filp->f_pos, NULL, attr_flags); return -error; } @@ -1140,6 +1170,42 @@ xfs_di2lxflags( } STATIC int +xfs_ioc_fsgetxattr( + xfs_inode_t *ip, + int attr, + void __user *arg) +{ + struct fsxattr fa; + + xfs_ilock(ip, XFS_ILOCK_SHARED); + fa.fsx_xflags = xfs_ip2xflags(ip); + fa.fsx_extsize = ip->i_d.di_extsize << ip->i_mount->m_sb.sb_blocklog; + fa.fsx_projid = ip->i_d.di_projid; + + if (attr) { + if (ip->i_afp) { + if (ip->i_afp->if_flags & XFS_IFEXTENTS) + fa.fsx_nextents = ip->i_afp->if_bytes / + sizeof(xfs_bmbt_rec_t); + else + fa.fsx_nextents = ip->i_d.di_anextents; + } else + fa.fsx_nextents = 0; + } else { + if (ip->i_df.if_flags & XFS_IFEXTENTS) + fa.fsx_nextents = ip->i_df.if_bytes / + sizeof(xfs_bmbt_rec_t); + else + fa.fsx_nextents = ip->i_d.di_nextents; + } + xfs_iunlock(ip, XFS_ILOCK_SHARED); + + if (copy_to_user(arg, &fa, sizeof(fa))) + return -EFAULT; + return 0; +} + +STATIC int xfs_ioc_xattr( bhv_vnode_t *vp, xfs_inode_t *ip, @@ -1158,27 +1224,6 @@ xfs_ioc_xattr( return -ENOMEM; switch (cmd) { - case XFS_IOC_FSGETXATTR: { - vattr->va_mask = XFS_AT_XFLAGS | XFS_AT_EXTSIZE | \ - XFS_AT_NEXTENTS | XFS_AT_PROJID; - error = bhv_vop_getattr(vp, vattr, 0, NULL); - if (unlikely(error)) { - error = -error; - break; - } - - fa.fsx_xflags = vattr->va_xflags; - fa.fsx_extsize = vattr->va_extsize; - fa.fsx_nextents = vattr->va_nextents; - fa.fsx_projid = vattr->va_projid; - - if (copy_to_user(arg, &fa, sizeof(fa))) { - error = -EFAULT; - break; - } - break; - } - case XFS_IOC_FSSETXATTR: { if (copy_from_user(&fa, arg, sizeof(fa))) { error = -EFAULT; @@ -1194,34 +1239,13 @@ xfs_ioc_xattr( vattr->va_extsize = fa.fsx_extsize; vattr->va_projid = fa.fsx_projid; - error = bhv_vop_setattr(vp, vattr, attr_flags, NULL); + error = xfs_setattr(ip, vattr, attr_flags, NULL); if (likely(!error)) __vn_revalidate(vp, vattr); /* update flags */ error = -error; break; } - case XFS_IOC_FSGETXATTRA: { - vattr->va_mask = XFS_AT_XFLAGS | XFS_AT_EXTSIZE | \ - XFS_AT_ANEXTENTS | XFS_AT_PROJID; - error = bhv_vop_getattr(vp, vattr, 0, NULL); - if (unlikely(error)) { - error = -error; - break; - } - - fa.fsx_xflags = vattr->va_xflags; - fa.fsx_extsize = vattr->va_extsize; - fa.fsx_nextents = vattr->va_anextents; - fa.fsx_projid = vattr->va_projid; - - if (copy_to_user(arg, &fa, sizeof(fa))) { - error = -EFAULT; - break; - } - break; - } - case XFS_IOC_GETXFLAGS: { flags = xfs_di2lxflags(ip->i_d.di_flags); if (copy_to_user(arg, &flags, sizeof(flags))) @@ -1250,7 +1274,7 @@ xfs_ioc_xattr( vattr->va_xflags = xfs_merge_ioc_xflags(flags, xfs_ip2xflags(ip)); - error = bhv_vop_setattr(vp, vattr, attr_flags, NULL); + error = xfs_setattr(ip, vattr, attr_flags, NULL); if (likely(!error)) __vn_revalidate(vp, vattr); /* update flags */ error = -error; @@ -1268,7 +1292,7 @@ xfs_ioc_xattr( STATIC int xfs_ioc_getbmap( - bhv_desc_t *bdp, + struct xfs_inode *ip, int ioflags, unsigned int cmd, void __user *arg) @@ -1287,7 +1311,7 @@ xfs_ioc_getbmap( if (ioflags & IO_INVIS) iflags |= BMV_IF_NO_DMAPI_READ; - error = xfs_getbmap(bdp, &bm, (struct getbmap __user *)arg+1, iflags); + error = xfs_getbmap(ip, &bm, (struct getbmap __user *)arg+1, iflags); if (error) return -error; @@ -1298,7 +1322,7 @@ xfs_ioc_getbmap( STATIC int xfs_ioc_getbmapx( - bhv_desc_t *bdp, + struct xfs_inode *ip, void __user *arg) { struct getbmapx bmx; @@ -1325,7 +1349,7 @@ xfs_ioc_getbmapx( iflags |= BMV_IF_EXTENDED; - error = xfs_getbmap(bdp, &bm, (struct getbmapx __user *)arg+1, iflags); + error = xfs_getbmap(ip, &bm, (struct getbmapx __user *)arg+1, iflags); if (error) return -error; |