From: "Darrick J. Wong" <djwong@xxxxxxxxxx>
Separate out setting buftarg atomic writes limits into a dedicated
function, xfs_configure_buftarg_atomic_writes(), to keep the specific
functionality self-contained.
For naming consistency, rename xfs_setsize_buftarg() ->
xfs_configure_buftarg().
Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
[jpg: separate out from patch "xfs: ignore HW which ..."]
Signed-off-by: John Garry <john.g.garry@xxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
---
fs/xfs/xfs_buf.c | 32 ++++++++++++++++++++++++--------
fs/xfs/xfs_buf.h | 2 +-
fs/xfs/xfs_super.c | 6 +++---
3 files changed, 28 insertions(+), 12 deletions(-)
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index d8f90bdd2a33..e2374c503e79 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -1714,13 +1714,33 @@ xfs_free_buftarg(
kfree(btp);
}
+/*
+ * Configure this buffer target for hardware-assisted atomic writes if the
+ * underlying block device supports is congruent with the filesystem geometry.
+ */
+static inline void
+xfs_configure_buftarg_atomic_writes(
+ struct xfs_buftarg *btp)
+{
+ unsigned int min_bytes, max_bytes;
+
+ min_bytes = bdev_atomic_write_unit_min_bytes(btp->bt_bdev);
+ max_bytes = bdev_atomic_write_unit_max_bytes(btp->bt_bdev);
+
+ btp->bt_bdev_awu_min = min_bytes;
+ btp->bt_bdev_awu_max = max_bytes;
+}
+
+/* Configure a buffer target that abstracts a block device. */
int
-xfs_setsize_buftarg(
+xfs_configure_buftarg(
struct xfs_buftarg *btp,
unsigned int sectorsize)
{
int error;
+ ASSERT(btp->bt_bdev != NULL);
+
/* Set up metadata sector size info */
btp->bt_meta_sectorsize = sectorsize;
btp->bt_meta_sectormask = sectorsize - 1;
@@ -1733,6 +1753,9 @@ xfs_setsize_buftarg(
return -EINVAL;
}
+ if (bdev_can_atomic_write(btp->bt_bdev))
+ xfs_configure_buftarg_atomic_writes(btp);
+
return 0;
}
@@ -1797,13 +1820,6 @@ xfs_alloc_buftarg(
btp->bt_daxdev = fs_dax_get_by_bdev(btp->bt_bdev, &btp->bt_dax_part_off,
mp, ops);
- if (bdev_can_atomic_write(btp->bt_bdev)) {
- btp->bt_bdev_awu_min = bdev_atomic_write_unit_min_bytes(
- btp->bt_bdev);
- btp->bt_bdev_awu_max = bdev_atomic_write_unit_max_bytes(
- btp->bt_bdev);
- }
-
/*
* Flush and invalidate all devices' pagecaches before reading any
* metadata because XFS doesn't use the bdev pagecache.
diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h
index d0b065a9a9f0..a7026fb255c4 100644
--- a/fs/xfs/xfs_buf.h
+++ b/fs/xfs/xfs_buf.h
@@ -374,7 +374,7 @@ struct xfs_buftarg *xfs_alloc_buftarg(struct xfs_mount *mp,
extern void xfs_free_buftarg(struct xfs_buftarg *);
extern void xfs_buftarg_wait(struct xfs_buftarg *);
extern void xfs_buftarg_drain(struct xfs_buftarg *);
-extern int xfs_setsize_buftarg(struct xfs_buftarg *, unsigned int);
+int xfs_configure_buftarg(struct xfs_buftarg *btp, unsigned int sectorsize);
#define xfs_getsize_buftarg(buftarg) block_size((buftarg)->bt_bdev)
#define xfs_readonly_buftarg(buftarg) bdev_read_only((buftarg)->bt_bdev)
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 6eba90eb7297..77a3c003fc4f 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -537,7 +537,7 @@ xfs_setup_devices(
{
int error;
- error = xfs_setsize_buftarg(mp->m_ddev_targp, mp->m_sb.sb_sectsize);
+ error = xfs_configure_buftarg(mp->m_ddev_targp, mp->m_sb.sb_sectsize);
if (error)
return error;
@@ -546,7 +546,7 @@ xfs_setup_devices(
if (xfs_has_sector(mp))
log_sector_size = mp->m_sb.sb_logsectsize;
- error = xfs_setsize_buftarg(mp->m_logdev_targp,
+ error = xfs_configure_buftarg(mp->m_logdev_targp,
log_sector_size);
if (error)
return error;
@@ -560,7 +560,7 @@ xfs_setup_devices(
}
mp->m_rtdev_targp = mp->m_ddev_targp;
} else if (mp->m_rtname) {
- error = xfs_setsize_buftarg(mp->m_rtdev_targp,
+ error = xfs_configure_buftarg(mp->m_rtdev_targp,
mp->m_sb.sb_sectsize);
if (error)
return error;
--
2.31.1
