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authorArnd Bergmann <arnd@arndb.de>2012-11-16 17:11:46 +0100
committerArnd Bergmann <arnd@arndb.de>2012-11-16 17:11:46 +0100
commitbac2f668864eca45b702ee394bef4c5f3a86658c (patch)
tree9b82100e2f447ae2b3b20f4a935b8020c885adcf /fs/xfs/xfs_fsops.c
parentcff9f37a1e7b2565f254b5ab40c3213cc0f823a1 (diff)
parent632506a21a3b5f0596e89d55cda6b482bec331a3 (diff)
Merge tag 'imx-dt' of git://git.pengutronix.de/git/imx/linux-2.6 into next/dt
From Sascha Hauer <s.hauer@pengutronix.de>: ARM i.MX dt updates for 3.8 * tag 'imx-dt' of git://git.pengutronix.de/git/imx/linux-2.6: Add device tree file for the armadeus apf27 ARM i.MX: Add Ka-Ro TX25 devicetree ARM i.MX25: Add devicetree ARM i.MX25: Add devicetree support ARM i.MX25: Add missing clock gates 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 c25b094efbf7..4beaede43277 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);