From: Ben Myers <bpm@xxxxxxx>
The versioned xfs_fsop_geom_t will be of variable size. Make
xfs_fs_geometry return the number of bytes to copy out to userspace for
a given version of the structure.
Signed-off-by: Ben Myers <bpm@xxxxxxx>
---
fs/xfs/xfs_fsops.c | 6 ++----
fs/xfs/xfs_fsops.h | 2 +-
fs/xfs/xfs_ioctl.c | 6 ++++--
fs/xfs/xfs_ioctl32.c | 3 ++-
4 files changed, 9 insertions(+), 8 deletions(-)
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index b69468e..cf87e16 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -51,11 +51,9 @@ int
xfs_fs_geometry(
xfs_mount_t *mp,
xfs_fsop_geom_v2_t *geo,
- int new_version)
+ int new_version,
+ size_t *bytes)
{
-
- memset(geo, 0, sizeof(*geo));
-
geo->blocksize = mp->m_sb.sb_blocksize;
geo->rtextsize = mp->m_sb.sb_rextsize;
geo->agblocks = mp->m_sb.sb_agblocks;
diff --git a/fs/xfs/xfs_fsops.h b/fs/xfs/xfs_fsops.h
index 26e7343..74e1fee 100644
--- a/fs/xfs/xfs_fsops.h
+++ b/fs/xfs/xfs_fsops.h
@@ -19,7 +19,7 @@
#define __XFS_FSOPS_H__
extern int xfs_fs_geometry(xfs_mount_t *mp, xfs_fsop_geom_v2_t *geo,
- int nversion);
+ int new_version, size_t *bytes);
extern int xfs_growfs_data(xfs_mount_t *mp, xfs_growfs_data_t *in);
extern int xfs_growfs_log(xfs_mount_t *mp, xfs_growfs_log_t *in);
extern int xfs_fs_counts(xfs_mount_t *mp, xfs_fsop_counts_t *cnt);
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 4393405..1657ce5 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -826,7 +826,8 @@ xfs_ioc_fsgeometry_v1(
xfs_fsop_geom_v2_t fsgeo;
int error;
- error = xfs_fs_geometry(mp, &fsgeo, 3);
+ memset(&fsgeo, 0, sizeof(fsgeo));
+ error = xfs_fs_geometry(mp, &fsgeo, 3, NULL);
if (error)
return error;
@@ -848,7 +849,8 @@ xfs_ioc_fsgeometry_v2(
xfs_fsop_geom_v2_t fsgeo;
int error;
- error = xfs_fs_geometry(mp, &fsgeo, 4);
+ memset(&fsgeo, 0, sizeof(fsgeo));
+ error = xfs_fs_geometry(mp, &fsgeo, 4, NULL);
if (error)
return error;
diff --git a/fs/xfs/xfs_ioctl32.c b/fs/xfs/xfs_ioctl32.c
index 207b224..aca988a 100644
--- a/fs/xfs/xfs_ioctl32.c
+++ b/fs/xfs/xfs_ioctl32.c
@@ -67,7 +67,8 @@ xfs_compat_ioc_fsgeometry_v1(
xfs_fsop_geom_v2_t fsgeo;
int error;
- error = xfs_fs_geometry(mp, &fsgeo, 3);
+ memset(&fsgeo, 0, sizeof(fsgeo));
+ error = xfs_fs_geometry(mp, &fsgeo, 3, NULL);
if (error)
return error;
/* The 32-bit variant simply has some padding at the end */
--
1.7.12.4
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