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authorArnd Bergmann <arnd@arndb.de>2012-11-16 16:59:17 +0100
committerArnd Bergmann <arnd@arndb.de>2012-11-16 16:59:17 +0100
commitdb2f95de7e6ab3d5cd7cc047bb09eb9ada07e3ba (patch)
tree46543712dbbb15075f7532621b0311f1de653e57 /fs/xfs/xfs_fsops.c
parent1bf0bc1e050fc425cc776b10d3ce8754389aabbe (diff)
parentd6aef84a48fa54ac606ae719fcd125199939f43d (diff)
Merge tag 'imx-soc' of git://git.pengutronix.de/git/imx/linux-2.6 into next/soc
From Sascha Hauer <s.hauer@pengutronix.de>: ARM i.MX SoC updates based on imx-multiplatform branch. * tag 'imx-soc' of git://git.pengutronix.de/git/imx/linux-2.6: ARM i.MX51 babbage: Add display support ARM i.MX6: Add IPU support ARM i.MX51: Add IPU support ARM i.MX53: Add IPU support ARM i.MX5: switch IPU clk support to devicetree bindings ARM i.MX6: fix ldb_di_sel mux ARM i.MX51: setup MIPI during startup mx2_camera: Fix regression caused by clock conversion ARM: clk-imx27: Add missing clock for mx2-camera ARM i.MX27: Fix low reference clock path ARM: dts: imx27-3ds: Remove local watchdog inclusion watchdog: Support imx watchdog on SOC_IMX53 ARM: mach-imx: Support for DryIce RTC in i.MX53 ARM : i.MX27 : split code for allocation of ressources of camera and eMMA Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'fs/xfs/xfs_fsops.c')
-rw-r--r--fs/xfs/xfs_fsops.c21
1 files changed, 19 insertions, 2 deletions
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index c25b094efbf..4beaede4327 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -399,9 +399,26 @@ xfs_growfs_data_private(
/* update secondary superblocks. */
for (agno = 1; agno < nagcount; agno++) {
- error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp,
+ error = 0;
+ /*
+ * new secondary superblocks need to be zeroed, not read from
+ * disk as the contents of the new area we are growing into is
+ * completely unknown.
+ */
+ if (agno < oagcount) {
+ error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp,
XFS_AGB_TO_DADDR(mp, agno, XFS_SB_BLOCK(mp)),
XFS_FSS_TO_BB(mp, 1), 0, &bp);
+ } else {
+ bp = xfs_trans_get_buf(NULL, mp->m_ddev_targp,
+ XFS_AGB_TO_DADDR(mp, agno, XFS_SB_BLOCK(mp)),
+ XFS_FSS_TO_BB(mp, 1), 0);
+ if (bp)
+ xfs_buf_zero(bp, 0, BBTOB(bp->b_length));
+ else
+ error = ENOMEM;
+ }
+
if (error) {
xfs_warn(mp,
"error %d reading secondary superblock for ag %d",
@@ -423,7 +440,7 @@ xfs_growfs_data_private(
break; /* no point in continuing */
}
}
- return 0;
+ return error;
error0:
xfs_trans_cancel(tp, XFS_TRANS_ABORT);