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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-04-28 10:32:58 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-04-28 10:32:58 +0200
commit615dca38c2eae55aff80050275931c87a812b48c (patch)
tree8674a3a3f66a39bf7c7f2ab733a757e624bd99ec /fs/xfs/xfs_fsmap.c
parent3baea29dc0a7b561170d7082f831a613ae6aa56e (diff)
parentb4432656b36e5cc1d50a1f2dc15357543add530e (diff)
Merge 6.15-rc4 into usb-next
We need the USB fixes in here as well, and this resolves the following merge conflicts that were reported in linux-next: drivers/usb/chipidea/ci_hdrc_imx.c drivers/usb/host/xhci.h Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/xfs/xfs_fsmap.c')
-rw-r--r--fs/xfs/xfs_fsmap.c51
1 files changed, 33 insertions, 18 deletions
diff --git a/fs/xfs/xfs_fsmap.c b/fs/xfs/xfs_fsmap.c
index a4bc1642fe56..414b27a86458 100644
--- a/fs/xfs/xfs_fsmap.c
+++ b/fs/xfs/xfs_fsmap.c
@@ -876,6 +876,7 @@ xfs_getfsmap_rtdev_rmapbt(
const struct xfs_fsmap *keys,
struct xfs_getfsmap_info *info)
{
+ struct xfs_fsmap key0 = *keys; /* struct copy */
struct xfs_mount *mp = tp->t_mountp;
struct xfs_rtgroup *rtg = NULL;
struct xfs_btree_cur *bt_cur = NULL;
@@ -887,32 +888,46 @@ xfs_getfsmap_rtdev_rmapbt(
int error = 0;
eofs = XFS_FSB_TO_BB(mp, mp->m_sb.sb_rtstart + mp->m_sb.sb_rblocks);
- if (keys[0].fmr_physical >= eofs)
+ if (key0.fmr_physical >= eofs)
return 0;
+ /*
+ * On zoned filesystems with an internal rt volume, the volume comes
+ * immediately after the end of the data volume. However, the
+ * xfs_rtblock_t address space is relative to the start of the data
+ * device, which means that the first @rtstart fsblocks do not actually
+ * point anywhere. If a fsmap query comes in with the low key starting
+ * below @rtstart, report it as "owned by filesystem".
+ */
rtstart_daddr = XFS_FSB_TO_BB(mp, mp->m_sb.sb_rtstart);
- if (keys[0].fmr_physical < rtstart_daddr) {
+ if (xfs_has_zoned(mp) && key0.fmr_physical < rtstart_daddr) {
struct xfs_fsmap_irec frec = {
.owner = XFS_RMAP_OWN_FS,
.len_daddr = rtstart_daddr,
};
- /* Adjust the low key if we are continuing from where we left off. */
- if (keys[0].fmr_length > 0) {
- info->low_daddr = keys[0].fmr_physical + keys[0].fmr_length;
- return 0;
+ /*
+ * Adjust the start of the query range if we're picking up from
+ * a previous round, and only emit the record if we haven't
+ * already gone past.
+ */
+ key0.fmr_physical += key0.fmr_length;
+ if (key0.fmr_physical < rtstart_daddr) {
+ error = xfs_getfsmap_helper(tp, info, &frec);
+ if (error)
+ return error;
+
+ key0.fmr_physical = rtstart_daddr;
}
- /* Fabricate an rmap entry for space occupied by the data dev */
- error = xfs_getfsmap_helper(tp, info, &frec);
- if (error)
- return error;
+ /* Zero the other fields to avoid further adjustments. */
+ key0.fmr_owner = 0;
+ key0.fmr_offset = 0;
+ key0.fmr_length = 0;
}
- start_rtb = xfs_daddr_to_rtb(mp, rtstart_daddr + keys[0].fmr_physical);
- end_rtb = xfs_daddr_to_rtb(mp, rtstart_daddr +
- min(eofs - 1, keys[1].fmr_physical));
-
+ start_rtb = xfs_daddr_to_rtb(mp, key0.fmr_physical);
+ end_rtb = xfs_daddr_to_rtb(mp, min(eofs - 1, keys[1].fmr_physical));
info->missing_owner = XFS_FMR_OWN_FREE;
/*
@@ -920,12 +935,12 @@ xfs_getfsmap_rtdev_rmapbt(
* low to the fsmap low key and max out the high key to the end
* of the rtgroup.
*/
- info->low.rm_offset = XFS_BB_TO_FSBT(mp, keys[0].fmr_offset);
- error = xfs_fsmap_owner_to_rmap(&info->low, &keys[0]);
+ info->low.rm_offset = XFS_BB_TO_FSBT(mp, key0.fmr_offset);
+ error = xfs_fsmap_owner_to_rmap(&info->low, &key0);
if (error)
return error;
- info->low.rm_blockcount = XFS_BB_TO_FSBT(mp, keys[0].fmr_length);
- xfs_getfsmap_set_irec_flags(&info->low, &keys[0]);
+ info->low.rm_blockcount = XFS_BB_TO_FSBT(mp, key0.fmr_length);
+ xfs_getfsmap_set_irec_flags(&info->low, &key0);
/* Adjust the low key if we are continuing from where we left off. */
if (info->low.rm_blockcount == 0) {