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path: root/fs/xfs/xfs_ioctl.c
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Diffstat (limited to 'fs/xfs/xfs_ioctl.c')
-rw-r--r--fs/xfs/xfs_ioctl.c161
1 files changed, 95 insertions, 66 deletions
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 5049e8ab6e30..20dc65fef6a4 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -44,6 +44,7 @@
#include "xfs_btree.h"
#include <linux/fsmap.h>
#include "xfs_fsmap.h"
+#include "scrub/xfs_scrub.h"
#include <linux/capability.h>
#include <linux/cred.h>
@@ -310,8 +311,8 @@ xfs_readlink_by_handle(
int
xfs_set_dmattrs(
xfs_inode_t *ip,
- u_int evmask,
- u_int16_t state)
+ uint evmask,
+ uint16_t state)
{
xfs_mount_t *mp = ip->i_mount;
xfs_trans_t *tp;
@@ -1088,6 +1089,7 @@ xfs_ioctl_setattr_dax_invalidate(
int *join_flags)
{
struct inode *inode = VFS_I(ip);
+ struct super_block *sb = inode->i_sb;
int error;
*join_flags = 0;
@@ -1100,7 +1102,7 @@ xfs_ioctl_setattr_dax_invalidate(
if (fa->fsx_xflags & FS_XFLAG_DAX) {
if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode)))
return -EINVAL;
- if (ip->i_mount->m_sb.sb_blocksize != PAGE_SIZE)
+ if (bdev_dax_supported(sb, sb->s_blocksize) < 0)
return -EINVAL;
}
@@ -1200,6 +1202,8 @@ out_unlock:
* 8. for non-realtime files, the extent size hint must be limited
* to half the AG size to avoid alignment extending the extent beyond the
* limits of the AG.
+ *
+ * Please keep this function in sync with xfs_scrub_inode_extsize.
*/
static int
xfs_ioctl_setattr_check_extsize(
@@ -1256,6 +1260,8 @@ xfs_ioctl_setattr_check_extsize(
* 5. Extent size must be a multiple of the appropriate block size.
* 6. The extent size hint must be limited to half the AG size to avoid
* alignment extending the extent beyond the limits of the AG.
+ *
+ * Please keep this function in sync with xfs_scrub_inode_cowextsize.
*/
static int
xfs_ioctl_setattr_check_cowextsize(
@@ -1539,17 +1545,26 @@ out_drop_write:
return error;
}
-STATIC int
-xfs_getbmap_format(void **ap, struct getbmapx *bmv)
+static bool
+xfs_getbmap_format(
+ struct kgetbmap *p,
+ struct getbmapx __user *u,
+ size_t recsize)
{
- struct getbmap __user *base = (struct getbmap __user *)*ap;
-
- /* copy only getbmap portion (not getbmapx) */
- if (copy_to_user(base, bmv, sizeof(struct getbmap)))
- return -EFAULT;
-
- *ap += sizeof(struct getbmap);
- return 0;
+ if (put_user(p->bmv_offset, &u->bmv_offset) ||
+ put_user(p->bmv_block, &u->bmv_block) ||
+ put_user(p->bmv_length, &u->bmv_length) ||
+ put_user(0, &u->bmv_count) ||
+ put_user(0, &u->bmv_entries))
+ return false;
+ if (recsize < sizeof(struct getbmapx))
+ return true;
+ if (put_user(0, &u->bmv_iflags) ||
+ put_user(p->bmv_oflags, &u->bmv_oflags) ||
+ put_user(0, &u->bmv_unused1) ||
+ put_user(0, &u->bmv_unused2))
+ return false;
+ return true;
}
STATIC int
@@ -1559,68 +1574,57 @@ xfs_ioc_getbmap(
void __user *arg)
{
struct getbmapx bmx = { 0 };
- int error;
-
- /* struct getbmap is a strict subset of struct getbmapx. */
- if (copy_from_user(&bmx, arg, offsetof(struct getbmapx, bmv_iflags)))
- return -EFAULT;
+ struct kgetbmap *buf;
+ size_t recsize;
+ int error, i;
- if (bmx.bmv_count < 2)
+ switch (cmd) {
+ case XFS_IOC_GETBMAPA:
+ bmx.bmv_iflags = BMV_IF_ATTRFORK;
+ /*FALLTHRU*/
+ case XFS_IOC_GETBMAP:
+ if (file->f_mode & FMODE_NOCMTIME)
+ bmx.bmv_iflags |= BMV_IF_NO_DMAPI_READ;
+ /* struct getbmap is a strict subset of struct getbmapx. */
+ recsize = sizeof(struct getbmap);
+ break;
+ case XFS_IOC_GETBMAPX:
+ recsize = sizeof(struct getbmapx);
+ break;
+ default:
return -EINVAL;
+ }
- bmx.bmv_iflags = (cmd == XFS_IOC_GETBMAPA ? BMV_IF_ATTRFORK : 0);
- if (file->f_mode & FMODE_NOCMTIME)
- bmx.bmv_iflags |= BMV_IF_NO_DMAPI_READ;
-
- error = xfs_getbmap(XFS_I(file_inode(file)), &bmx, xfs_getbmap_format,
- (__force struct getbmap *)arg+1);
- if (error)
- return error;
-
- /* copy back header - only size of getbmap */
- if (copy_to_user(arg, &bmx, sizeof(struct getbmap)))
- return -EFAULT;
- return 0;
-}
-
-STATIC int
-xfs_getbmapx_format(void **ap, struct getbmapx *bmv)
-{
- struct getbmapx __user *base = (struct getbmapx __user *)*ap;
-
- if (copy_to_user(base, bmv, sizeof(struct getbmapx)))
- return -EFAULT;
-
- *ap += sizeof(struct getbmapx);
- return 0;
-}
-
-STATIC int
-xfs_ioc_getbmapx(
- struct xfs_inode *ip,
- void __user *arg)
-{
- struct getbmapx bmx;
- int error;
-
- if (copy_from_user(&bmx, arg, sizeof(bmx)))
+ if (copy_from_user(&bmx, arg, recsize))
return -EFAULT;
if (bmx.bmv_count < 2)
return -EINVAL;
+ if (bmx.bmv_count > ULONG_MAX / recsize)
+ return -ENOMEM;
- if (bmx.bmv_iflags & (~BMV_IF_VALID))
- return -EINVAL;
+ buf = kmem_zalloc_large(bmx.bmv_count * sizeof(*buf), 0);
+ if (!buf)
+ return -ENOMEM;
- error = xfs_getbmap(ip, &bmx, xfs_getbmapx_format,
- (__force struct getbmapx *)arg+1);
+ error = xfs_getbmap(XFS_I(file_inode(file)), &bmx, buf);
if (error)
- return error;
+ goto out_free_buf;
- /* copy back header */
- if (copy_to_user(arg, &bmx, sizeof(struct getbmapx)))
- return -EFAULT;
+ error = -EFAULT;
+ if (copy_to_user(arg, &bmx, recsize))
+ goto out_free_buf;
+ arg += recsize;
+
+ for (i = 0; i < bmx.bmv_entries; i++) {
+ if (!xfs_getbmap_format(buf + i, arg, recsize))
+ goto out_free_buf;
+ arg += recsize;
+ }
+ error = 0;
+out_free_buf:
+ kmem_free(buf);
return 0;
}
@@ -1702,6 +1706,30 @@ xfs_ioc_getfsmap(
return 0;
}
+STATIC int
+xfs_ioc_scrub_metadata(
+ struct xfs_inode *ip,
+ void __user *arg)
+{
+ struct xfs_scrub_metadata scrub;
+ int error;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ if (copy_from_user(&scrub, arg, sizeof(scrub)))
+ return -EFAULT;
+
+ error = xfs_scrub_metadata(ip, &scrub);
+ if (error)
+ return error;
+
+ if (copy_to_user(arg, &scrub, sizeof(scrub)))
+ return -EFAULT;
+
+ return 0;
+}
+
int
xfs_ioc_swapext(
xfs_swapext_t *sxp)
@@ -1877,14 +1905,15 @@ xfs_file_ioctl(
case XFS_IOC_GETBMAP:
case XFS_IOC_GETBMAPA:
- return xfs_ioc_getbmap(filp, cmd, arg);
-
case XFS_IOC_GETBMAPX:
- return xfs_ioc_getbmapx(ip, arg);
+ return xfs_ioc_getbmap(filp, cmd, arg);
case FS_IOC_GETFSMAP:
return xfs_ioc_getfsmap(ip, arg);
+ case XFS_IOC_SCRUB_METADATA:
+ return xfs_ioc_scrub_metadata(ip, arg);
+
case XFS_IOC_FD_TO_HANDLE:
case XFS_IOC_PATH_TO_HANDLE:
case XFS_IOC_PATH_TO_FSHANDLE: {
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-30 20:24:47 +0300