diff options
Diffstat (limited to 'fs/xfs/xfs_ioctl.c')
-rw-r--r-- | fs/xfs/xfs_ioctl.c | 519 |
1 files changed, 243 insertions, 276 deletions
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c index d58f0d6a699e..309958186d33 100644 --- a/fs/xfs/xfs_ioctl.c +++ b/fs/xfs/xfs_ioctl.c @@ -33,6 +33,10 @@ #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_health.h" +#include "xfs_reflink.h" +#include "xfs_ioctl.h" +#include "xfs_da_format.h" +#include "xfs_da_btree.h" #include <linux/mount.h> #include <linux/namei.h> @@ -290,138 +294,173 @@ xfs_readlink_by_handle( return error; } -int -xfs_set_dmattrs( - xfs_inode_t *ip, - uint evmask, - uint16_t state) +/* + * Format an attribute and copy it out to the user's buffer. + * Take care to check values and protect against them changing later, + * we may be reading them directly out of a user buffer. + */ +static void +xfs_ioc_attr_put_listent( + struct xfs_attr_list_context *context, + int flags, + unsigned char *name, + int namelen, + int valuelen) { - xfs_mount_t *mp = ip->i_mount; - xfs_trans_t *tp; - int error; + struct xfs_attrlist *alist = context->buffer; + struct xfs_attrlist_ent *aep; + int arraytop; - if (!capable(CAP_SYS_ADMIN)) - return -EPERM; + ASSERT(!context->seen_enough); + ASSERT(context->count >= 0); + ASSERT(context->count < (ATTR_MAX_VALUELEN/8)); + ASSERT(context->firstu >= sizeof(*alist)); + ASSERT(context->firstu <= context->bufsize); - if (XFS_FORCED_SHUTDOWN(mp)) - return -EIO; - - error = xfs_trans_alloc(mp, &M_RES(mp)->tr_ichange, 0, 0, 0, &tp); - if (error) - return error; - - xfs_ilock(ip, XFS_ILOCK_EXCL); - xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL); - - ip->i_d.di_dmevmask = evmask; - ip->i_d.di_dmstate = state; - - xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); - error = xfs_trans_commit(tp); + /* + * Only list entries in the right namespace. + */ + if (context->attr_filter != (flags & XFS_ATTR_NSP_ONDISK_MASK)) + return; + + arraytop = sizeof(*alist) + + context->count * sizeof(alist->al_offset[0]); + + /* decrement by the actual bytes used by the attr */ + context->firstu -= round_up(offsetof(struct xfs_attrlist_ent, a_name) + + namelen + 1, sizeof(uint32_t)); + if (context->firstu < arraytop) { + trace_xfs_attr_list_full(context); + alist->al_more = 1; + context->seen_enough = 1; + return; + } + + aep = context->buffer + context->firstu; + aep->a_valuelen = valuelen; + memcpy(aep->a_name, name, namelen); + aep->a_name[namelen] = 0; + alist->al_offset[context->count++] = context->firstu; + alist->al_count = context->count; + trace_xfs_attr_list_add(context); +} - return error; +static unsigned int +xfs_attr_filter( + u32 ioc_flags) +{ + if (ioc_flags & XFS_IOC_ATTR_ROOT) + return XFS_ATTR_ROOT; + if (ioc_flags & XFS_IOC_ATTR_SECURE) + return XFS_ATTR_SECURE; + return 0; } -STATIC int -xfs_fssetdm_by_handle( - struct file *parfilp, - void __user *arg) +static unsigned int +xfs_attr_flags( + u32 ioc_flags) { - int error; - struct fsdmidata fsd; - xfs_fsop_setdm_handlereq_t dmhreq; - struct dentry *dentry; + if (ioc_flags & XFS_IOC_ATTR_CREATE) + return XATTR_CREATE; + if (ioc_flags & XFS_IOC_ATTR_REPLACE) + return XATTR_REPLACE; + return 0; +} - if (!capable(CAP_MKNOD)) - return -EPERM; - if (copy_from_user(&dmhreq, arg, sizeof(xfs_fsop_setdm_handlereq_t))) - return -EFAULT; +int +xfs_ioc_attr_list( + struct xfs_inode *dp, + void __user *ubuf, + int bufsize, + int flags, + struct xfs_attrlist_cursor __user *ucursor) +{ + struct xfs_attr_list_context context = { }; + struct xfs_attrlist *alist; + void *buffer; + int error; - error = mnt_want_write_file(parfilp); - if (error) - return error; + if (bufsize < sizeof(struct xfs_attrlist) || + bufsize > XFS_XATTR_LIST_MAX) + return -EINVAL; - dentry = xfs_handlereq_to_dentry(parfilp, &dmhreq.hreq); - if (IS_ERR(dentry)) { - mnt_drop_write_file(parfilp); - return PTR_ERR(dentry); - } + /* + * Reject flags, only allow namespaces. + */ + if (flags & ~(XFS_IOC_ATTR_ROOT | XFS_IOC_ATTR_SECURE)) + return -EINVAL; + if (flags == (XFS_IOC_ATTR_ROOT | XFS_IOC_ATTR_SECURE)) + return -EINVAL; - if (IS_IMMUTABLE(d_inode(dentry)) || IS_APPEND(d_inode(dentry))) { - error = -EPERM; - goto out; - } + /* + * Validate the cursor. + */ + if (copy_from_user(&context.cursor, ucursor, sizeof(context.cursor))) + return -EFAULT; + if (context.cursor.pad1 || context.cursor.pad2) + return -EINVAL; + if (!context.cursor.initted && + (context.cursor.hashval || context.cursor.blkno || + context.cursor.offset)) + return -EINVAL; - if (copy_from_user(&fsd, dmhreq.data, sizeof(fsd))) { - error = -EFAULT; - goto out; - } + buffer = kmem_zalloc_large(bufsize, 0); + if (!buffer) + return -ENOMEM; - error = xfs_set_dmattrs(XFS_I(d_inode(dentry)), fsd.fsd_dmevmask, - fsd.fsd_dmstate); + /* + * Initialize the output buffer. + */ + context.dp = dp; + context.resynch = 1; + context.attr_filter = xfs_attr_filter(flags); + context.buffer = buffer; + context.bufsize = round_down(bufsize, sizeof(uint32_t)); + context.firstu = context.bufsize; + context.put_listent = xfs_ioc_attr_put_listent; + + alist = context.buffer; + alist->al_count = 0; + alist->al_more = 0; + alist->al_offset[0] = context.bufsize; + + error = xfs_attr_list(&context); + if (error) + goto out_free; - out: - mnt_drop_write_file(parfilp); - dput(dentry); + if (copy_to_user(ubuf, buffer, bufsize) || + copy_to_user(ucursor, &context.cursor, sizeof(context.cursor))) + error = -EFAULT; +out_free: + kmem_free(buffer); return error; } STATIC int xfs_attrlist_by_handle( struct file *parfilp, - void __user *arg) + struct xfs_fsop_attrlist_handlereq __user *p) { - int error = -ENOMEM; - attrlist_cursor_kern_t *cursor; - struct xfs_fsop_attrlist_handlereq __user *p = arg; - xfs_fsop_attrlist_handlereq_t al_hreq; + struct xfs_fsop_attrlist_handlereq al_hreq; struct dentry *dentry; - char *kbuf; + int error = -ENOMEM; if (!capable(CAP_SYS_ADMIN)) return -EPERM; - if (copy_from_user(&al_hreq, arg, sizeof(xfs_fsop_attrlist_handlereq_t))) + if (copy_from_user(&al_hreq, p, sizeof(al_hreq))) return -EFAULT; - if (al_hreq.buflen < sizeof(struct attrlist) || - al_hreq.buflen > XFS_XATTR_LIST_MAX) - return -EINVAL; - - /* - * Reject flags, only allow namespaces. - */ - if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE)) - return -EINVAL; dentry = xfs_handlereq_to_dentry(parfilp, &al_hreq.hreq); if (IS_ERR(dentry)) return PTR_ERR(dentry); - kbuf = kmem_zalloc_large(al_hreq.buflen, 0); - if (!kbuf) - goto out_dput; - - cursor = (attrlist_cursor_kern_t *)&al_hreq.pos; - error = xfs_attr_list(XFS_I(d_inode(dentry)), kbuf, al_hreq.buflen, - al_hreq.flags, cursor); - if (error) - goto out_kfree; - - if (copy_to_user(&p->pos, cursor, sizeof(attrlist_cursor_kern_t))) { - error = -EFAULT; - goto out_kfree; - } - - if (copy_to_user(al_hreq.buffer, kbuf, al_hreq.buflen)) - error = -EFAULT; - -out_kfree: - kmem_free(kbuf); -out_dput: + error = xfs_ioc_attr_list(XFS_I(d_inode(dentry)), al_hreq.buffer, + al_hreq.buflen, al_hreq.flags, &p->pos); dput(dentry); return error; } -int +static int xfs_attrmulti_attr_get( struct inode *inode, unsigned char *name, @@ -429,28 +468,33 @@ xfs_attrmulti_attr_get( uint32_t *len, uint32_t flags) { - unsigned char *kbuf; - int error = -EFAULT; + struct xfs_da_args args = { + .dp = XFS_I(inode), + .attr_filter = xfs_attr_filter(flags), + .attr_flags = xfs_attr_flags(flags), + .name = name, + .namelen = strlen(name), + .valuelen = *len, + }; + int error; if (*len > XFS_XATTR_SIZE_MAX) return -EINVAL; - kbuf = kmem_zalloc_large(*len, 0); - if (!kbuf) - return -ENOMEM; - error = xfs_attr_get(XFS_I(inode), name, &kbuf, (int *)len, flags); + error = xfs_attr_get(&args); if (error) goto out_kfree; - if (copy_to_user(ubuf, kbuf, *len)) + *len = args.valuelen; + if (copy_to_user(ubuf, args.value, args.valuelen)) error = -EFAULT; out_kfree: - kmem_free(kbuf); + kmem_free(args.value); return error; } -int +static int xfs_attrmulti_attr_set( struct inode *inode, unsigned char *name, @@ -458,38 +502,75 @@ xfs_attrmulti_attr_set( uint32_t len, uint32_t flags) { - unsigned char *kbuf; + struct xfs_da_args args = { + .dp = XFS_I(inode), + .attr_filter = xfs_attr_filter(flags), + .attr_flags = xfs_attr_flags(flags), + .name = name, + .namelen = strlen(name), + }; int error; if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) return -EPERM; - if (len > XFS_XATTR_SIZE_MAX) - return -EINVAL; - kbuf = memdup_user(ubuf, len); - if (IS_ERR(kbuf)) - return PTR_ERR(kbuf); + if (ubuf) { + if (len > XFS_XATTR_SIZE_MAX) + return -EINVAL; + args.value = memdup_user(ubuf, len); + if (IS_ERR(args.value)) + return PTR_ERR(args.value); + args.valuelen = len; + } - error = xfs_attr_set(XFS_I(inode), name, kbuf, len, flags); - if (!error) - xfs_forget_acl(inode, name, flags); - kfree(kbuf); + error = xfs_attr_set(&args); + if (!error && (flags & XFS_IOC_ATTR_ROOT)) + xfs_forget_acl(inode, name); + kfree(args.value); return error; } int -xfs_attrmulti_attr_remove( +xfs_ioc_attrmulti_one( + struct file *parfilp, struct inode *inode, - unsigned char *name, + uint32_t opcode, + void __user *uname, + void __user *value, + uint32_t *len, uint32_t flags) { + unsigned char *name; int error; - if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) - return -EPERM; - error = xfs_attr_remove(XFS_I(inode), name, flags); - if (!error) - xfs_forget_acl(inode, name, flags); + if ((flags & XFS_IOC_ATTR_ROOT) && (flags & XFS_IOC_ATTR_SECURE)) + return -EINVAL; + + name = strndup_user(uname, MAXNAMELEN); + if (IS_ERR(name)) + return PTR_ERR(name); + + switch (opcode) { + case ATTR_OP_GET: + error = xfs_attrmulti_attr_get(inode, name, value, len, flags); + break; + case ATTR_OP_REMOVE: + value = NULL; + *len = 0; + /* fall through */ + case ATTR_OP_SET: + error = mnt_want_write_file(parfilp); + if (error) + break; + error = xfs_attrmulti_attr_set(inode, name, value, *len, flags); + mnt_drop_write_file(parfilp); + break; + default: + error = -EINVAL; + break; + } + + kfree(name); return error; } @@ -503,7 +584,6 @@ xfs_attrmulti_by_handle( xfs_fsop_attrmulti_handlereq_t am_hreq; struct dentry *dentry; unsigned int i, size; - unsigned char *attr_name; if (!capable(CAP_SYS_ADMIN)) return -EPERM; @@ -529,56 +609,17 @@ xfs_attrmulti_by_handle( goto out_dput; } - error = -ENOMEM; - attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL); - if (!attr_name) - goto out_kfree_ops; - error = 0; for (i = 0; i < am_hreq.opcount; i++) { - ops[i].am_error = strncpy_from_user((char *)attr_name, - ops[i].am_attrname, MAXNAMELEN); - if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN) - error = -ERANGE; - if (ops[i].am_error < 0) - break; - - switch (ops[i].am_opcode) { - case ATTR_OP_GET: - ops[i].am_error = xfs_attrmulti_attr_get( - d_inode(dentry), attr_name, - ops[i].am_attrvalue, &ops[i].am_length, - ops[i].am_flags); - break; - case ATTR_OP_SET: - ops[i].am_error = mnt_want_write_file(parfilp); - if (ops[i].am_error) - break; - ops[i].am_error = xfs_attrmulti_attr_set( - d_inode(dentry), attr_name, - ops[i].am_attrvalue, ops[i].am_length, - ops[i].am_flags); - mnt_drop_write_file(parfilp); - break; - case ATTR_OP_REMOVE: - ops[i].am_error = mnt_want_write_file(parfilp); - if (ops[i].am_error) - break; - ops[i].am_error = xfs_attrmulti_attr_remove( - d_inode(dentry), attr_name, - ops[i].am_flags); - mnt_drop_write_file(parfilp); - break; - default: - ops[i].am_error = -EINVAL; - } + ops[i].am_error = xfs_ioc_attrmulti_one(parfilp, + d_inode(dentry), ops[i].am_opcode, + ops[i].am_attrname, ops[i].am_attrvalue, + &ops[i].am_length, ops[i].am_flags); } if (copy_to_user(am_hreq.ops, ops, size)) error = -EFAULT; - kfree(attr_name); - out_kfree_ops: kfree(ops); out_dput: dput(dentry); @@ -588,13 +629,12 @@ xfs_attrmulti_by_handle( int xfs_ioc_space( struct file *filp, - unsigned int cmd, xfs_flock64_t *bf) { struct inode *inode = file_inode(filp); struct xfs_inode *ip = XFS_I(inode); struct iattr iattr; - enum xfs_prealloc_flags flags = 0; + enum xfs_prealloc_flags flags = XFS_PREALLOC_CLEAR; uint iolock = XFS_IOLOCK_EXCL | XFS_MMAPLOCK_EXCL; int error; @@ -607,6 +647,9 @@ xfs_ioc_space( if (!S_ISREG(inode->i_mode)) return -EINVAL; + if (xfs_is_always_cow_inode(ip)) + return -EOPNOTSUPP; + if (filp->f_flags & O_DSYNC) flags |= XFS_PREALLOC_SYNC; if (filp->f_mode & FMODE_NOCMTIME) @@ -620,6 +663,7 @@ xfs_ioc_space( error = xfs_break_layouts(inode, &iolock, BREAK_UNMAP); if (error) goto out_unlock; + inode_dio_wait(inode); switch (bf->l_whence) { case 0: /*SEEK_SET*/ @@ -635,73 +679,21 @@ xfs_ioc_space( goto out_unlock; } - /* - * length of <= 0 for resv/unresv/zero is invalid. length for - * alloc/free is ignored completely and we have no idea what userspace - * might have set it to, so set it to zero to allow range - * checks to pass. - */ - switch (cmd) { - case XFS_IOC_ZERO_RANGE: - case XFS_IOC_RESVSP: - case XFS_IOC_RESVSP64: - case XFS_IOC_UNRESVSP: - case XFS_IOC_UNRESVSP64: - if (bf->l_len <= 0) { - error = -EINVAL; - goto out_unlock; - } - break; - default: - bf->l_len = 0; - break; - } - - if (bf->l_start < 0 || - bf->l_start > inode->i_sb->s_maxbytes || - bf->l_start + bf->l_len < 0 || - bf->l_start + bf->l_len >= inode->i_sb->s_maxbytes) { + if (bf->l_start < 0 || bf->l_start > inode->i_sb->s_maxbytes) { error = -EINVAL; goto out_unlock; } - switch (cmd) { - case XFS_IOC_ZERO_RANGE: - flags |= XFS_PREALLOC_SET; - error = xfs_zero_file_space(ip, bf->l_start, bf->l_len); - break; - case XFS_IOC_RESVSP: - case XFS_IOC_RESVSP64: - flags |= XFS_PREALLOC_SET; - error = xfs_alloc_file_space(ip, bf->l_start, bf->l_len, - XFS_BMAPI_PREALLOC); - break; - case XFS_IOC_UNRESVSP: - case XFS_IOC_UNRESVSP64: - error = xfs_free_file_space(ip, bf->l_start, bf->l_len); - break; - case XFS_IOC_ALLOCSP: - case XFS_IOC_ALLOCSP64: - case XFS_IOC_FREESP: - case XFS_IOC_FREESP64: - flags |= XFS_PREALLOC_CLEAR; - if (bf->l_start > XFS_ISIZE(ip)) { - error = xfs_alloc_file_space(ip, XFS_ISIZE(ip), - bf->l_start - XFS_ISIZE(ip), 0); - if (error) - goto out_unlock; - } - - iattr.ia_valid = ATTR_SIZE; - iattr.ia_size = bf->l_start; - - error = xfs_vn_setattr_size(file_dentry(filp), &iattr); - break; - default: - ASSERT(0); - error = -EINVAL; + if (bf->l_start > XFS_ISIZE(ip)) { + error = xfs_alloc_file_space(ip, XFS_ISIZE(ip), + bf->l_start - XFS_ISIZE(ip), 0); + if (error) + goto out_unlock; } + iattr.ia_valid = ATTR_SIZE; + iattr.ia_size = bf->l_start; + error = xfs_vn_setattr_size(file_dentry(filp), &iattr); if (error) goto out_unlock; @@ -1116,7 +1108,7 @@ xfs_fill_fsxattr( fa->fsx_extsize = ip->i_d.di_extsize << ip->i_mount->m_sb.sb_blocklog; fa->fsx_cowextsize = ip->i_d.di_cowextsize << ip->i_mount->m_sb.sb_blocklog; - fa->fsx_projid = xfs_get_projid(ip); + fa->fsx_projid = ip->i_d.di_projid; if (attr) { if (ip->i_afp) { @@ -1271,7 +1263,7 @@ xfs_ioctl_setattr_xflags( /* diflags2 only valid for v3 inodes. */ di_flags2 = xfs_flags2diflags2(ip, fa->fsx_xflags); - if (di_flags2 && ip->i_d.di_version < 3) + if (di_flags2 && !xfs_sb_version_has_v3inode(&mp->m_sb)) return -EINVAL; ip->i_d.di_flags = xfs_flags2diflags(ip, fa->fsx_xflags); @@ -1311,10 +1303,9 @@ xfs_ioctl_setattr_dax_invalidate( * have to check the device for dax support or flush pagecache. */ if (fa->fsx_xflags & FS_XFLAG_DAX) { - if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode))) - return -EINVAL; - if (!bdev_dax_supported(xfs_find_bdev_for_inode(VFS_I(ip)), - sb->s_blocksize)) + struct xfs_buftarg *target = xfs_inode_buftarg(ip); + + if (!bdev_dax_supported(target->bt_bdev, sb->s_blocksize)) return -EINVAL; } @@ -1482,8 +1473,7 @@ xfs_ioctl_setattr_check_cowextsize( if (!(fa->fsx_xflags & FS_XFLAG_COWEXTSIZE)) return 0; - if (!xfs_sb_version_hasreflink(&ip->i_mount->m_sb) || - ip->i_d.di_version != 3) + if (!xfs_sb_version_hasreflink(&ip->i_mount->m_sb)) return -EINVAL; if (fa->fsx_cowextsize == 0) @@ -1544,9 +1534,9 @@ xfs_ioctl_setattr( * because the i_*dquot fields will get updated anyway. */ if (XFS_IS_QUOTA_ON(mp)) { - code = xfs_qm_vop_dqalloc(ip, ip->i_d.di_uid, - ip->i_d.di_gid, fa->fsx_projid, - XFS_QMOPT_PQUOTA, &udqp, NULL, &pdqp); + code = xfs_qm_vop_dqalloc(ip, VFS_I(ip)->i_uid, + VFS_I(ip)->i_gid, fa->fsx_projid, + XFS_QMOPT_PQUOTA, &udqp, NULL, &pdqp); if (code) return code; } @@ -1569,7 +1559,7 @@ xfs_ioctl_setattr( } if (XFS_IS_QUOTA_RUNNING(mp) && XFS_IS_PQUOTA_ON(mp) && - xfs_get_projid(ip) != fa->fsx_projid) { + ip->i_d.di_projid != fa->fsx_projid) { code = xfs_qm_vop_chown_reserve(tp, ip, udqp, NULL, pdqp, capable(CAP_FOWNER) ? XFS_QMOPT_FORCE_RES : 0); if (code) /* out of quota */ @@ -1606,13 +1596,12 @@ xfs_ioctl_setattr( VFS_I(ip)->i_mode &= ~(S_ISUID|S_ISGID); /* Change the ownerships and register project quota modifications */ - if (xfs_get_projid(ip) != fa->fsx_projid) { + if (ip->i_d.di_projid != fa->fsx_projid) { if (XFS_IS_QUOTA_RUNNING(mp) && XFS_IS_PQUOTA_ON(mp)) { olddquot = xfs_qm_vop_chown(tp, ip, &ip->i_pdquot, pdqp); } - ASSERT(ip->i_d.di_version > 1); - xfs_set_projid(ip, fa->fsx_projid); + ip->i_d.di_projid = fa->fsx_projid; } /* @@ -1624,7 +1613,7 @@ xfs_ioctl_setattr( ip->i_d.di_extsize = fa->fsx_extsize >> mp->m_sb.sb_blocklog; else ip->i_d.di_extsize = 0; - if (ip->i_d.di_version == 3 && + if (xfs_sb_version_has_v3inode(&mp->m_sb) && (ip->i_d.di_flags2 & XFS_DIFLAG2_COWEXTSIZE)) ip->i_d.di_cowextsize = fa->fsx_cowextsize >> mp->m_sb.sb_blocklog; @@ -2122,24 +2111,17 @@ xfs_file_ioctl( return xfs_ioc_setlabel(filp, mp, arg); case XFS_IOC_ALLOCSP: case XFS_IOC_FREESP: - case XFS_IOC_RESVSP: - case XFS_IOC_UNRESVSP: case XFS_IOC_ALLOCSP64: - case XFS_IOC_FREESP64: - case XFS_IOC_RESVSP64: - case XFS_IOC_UNRESVSP64: - case XFS_IOC_ZERO_RANGE: { + case XFS_IOC_FREESP64: { xfs_flock64_t bf; if (copy_from_user(&bf, arg, sizeof(bf))) return -EFAULT; - return xfs_ioc_space(filp, cmd, &bf); + return xfs_ioc_space(filp, &bf); } case XFS_IOC_DIOINFO: { - struct dioattr da; - xfs_buftarg_t *target = - XFS_IS_REALTIME_INODE(ip) ? - mp->m_rtdev_targp : mp->m_ddev_targp; + struct xfs_buftarg *target = xfs_inode_buftarg(ip); + struct dioattr da; da.d_mem = da.d_miniosz = target->bt_logical_sectorsize; da.d_maxiosz = INT_MAX & ~(da.d_miniosz - 1); @@ -2183,22 +2165,6 @@ xfs_file_ioctl( case XFS_IOC_SETXFLAGS: return xfs_ioc_setxflags(ip, filp, arg); - case XFS_IOC_FSSETDM: { - struct fsdmidata dmi; - - if (copy_from_user(&dmi, arg, sizeof(dmi))) - return -EFAULT; - - error = mnt_want_write_file(filp); - if (error) - return error; - - error = xfs_set_dmattrs(ip, dmi.fsd_dmevmask, - dmi.fsd_dmstate); - mnt_drop_write_file(filp); - return error; - } - case XFS_IOC_GETBMAP: case XFS_IOC_GETBMAPA: case XFS_IOC_GETBMAPX: @@ -2226,8 +2192,6 @@ xfs_file_ioctl( return -EFAULT; return xfs_open_by_handle(filp, &hreq); } - case XFS_IOC_FSSETDM_BY_HANDLE: - return xfs_fssetdm_by_handle(filp, arg); case XFS_IOC_READLINK_BY_HANDLE: { xfs_fsop_handlereq_t hreq; @@ -2399,7 +2363,10 @@ xfs_file_ioctl( if (error) return error; - return xfs_icache_free_eofblocks(mp, &keofb); + sb_start_write(mp->m_super); + error = xfs_icache_free_eofblocks(mp, &keofb); + sb_end_write(mp->m_super); + return error; } default: |