From: Pankaj Raghav <p.raghav@xxxxxxxxxxx>
Page cache now has the ability to have a minimum order when allocating
a folio which is a prerequisite to add support for block size > page
size.
Signed-off-by: Pankaj Raghav <p.raghav@xxxxxxxxxxx>
Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx>
Signed-off-by: Luis Chamberlain <mcgrof@xxxxxxxxxx>
---
fs/xfs/libxfs/xfs_ialloc.c | 5 +++++
fs/xfs/libxfs/xfs_shared.h | 3 +++
fs/xfs/xfs_icache.c | 6 ++++--
fs/xfs/xfs_mount.c | 1 -
fs/xfs/xfs_super.c | 10 ++--------
5 files changed, 14 insertions(+), 11 deletions(-)
diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c
index e5ac3e5430c4..60005feb0015 100644
--- a/fs/xfs/libxfs/xfs_ialloc.c
+++ b/fs/xfs/libxfs/xfs_ialloc.c
@@ -2975,6 +2975,11 @@ xfs_ialloc_setup_geometry(
igeo->ialloc_align = mp->m_dalign;
else
igeo->ialloc_align = 0;
+
+ if (mp->m_sb.sb_blocksize > PAGE_SIZE)
+ igeo->min_folio_order = mp->m_sb.sb_blocklog - PAGE_SHIFT;
+ else
+ igeo->min_folio_order = 0;
}
/* Compute the location of the root directory inode that is laid out by mkfs. */
diff --git a/fs/xfs/libxfs/xfs_shared.h b/fs/xfs/libxfs/xfs_shared.h
index dfd61fa8332e..7d3abd182322 100644
--- a/fs/xfs/libxfs/xfs_shared.h
+++ b/fs/xfs/libxfs/xfs_shared.h
@@ -229,6 +229,9 @@ struct xfs_ino_geometry {
/* precomputed value for di_flags2 */
uint64_t new_diflags2;
+ /* minimum folio order of a page cache allocation */
+ unsigned int min_folio_order;
+
};
#endif /* __XFS_SHARED_H__ */
diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c
index 74f1812b03cb..a2629e00de41 100644
--- a/fs/xfs/xfs_icache.c
+++ b/fs/xfs/xfs_icache.c
@@ -89,7 +89,8 @@ xfs_inode_alloc(
/* VFS doesn't initialise i_mode or i_state! */
VFS_I(ip)->i_mode = 0;
VFS_I(ip)->i_state = 0;
- mapping_set_large_folios(VFS_I(ip)->i_mapping);
+ mapping_set_folio_min_order(VFS_I(ip)->i_mapping,
+ M_IGEO(mp)->min_folio_order);
XFS_STATS_INC(mp, vn_active);
ASSERT(atomic_read(&ip->i_pincount) == 0);
@@ -324,7 +325,8 @@ xfs_reinit_inode(
inode->i_rdev = dev;
inode->i_uid = uid;
inode->i_gid = gid;
- mapping_set_large_folios(inode->i_mapping);
+ mapping_set_folio_min_order(inode->i_mapping,
+ M_IGEO(mp)->min_folio_order);
return error;
}
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 56d71282972a..a451302aa258 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -131,7 +131,6 @@ xfs_sb_validate_fsb_count(
xfs_sb_t *sbp,
uint64_t nblocks)
{
- ASSERT(PAGE_SHIFT >= sbp->sb_blocklog);
ASSERT(sbp->sb_blocklog >= BBSHIFT);
uint64_t max_index;
uint64_t max_bytes;
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index bce020374c5e..db3b82c2c381 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1623,16 +1623,10 @@ xfs_fs_fill_super(
goto out_free_sb;
}
- /*
- * Until this is fixed only page-sized or smaller data blocks work.
- */
if (mp->m_sb.sb_blocksize > PAGE_SIZE) {
xfs_warn(mp,
- "File system with blocksize %d bytes. "
- "Only pagesize (%ld) or less will currently work.",
- mp->m_sb.sb_blocksize, PAGE_SIZE);
- error = -ENOSYS;
- goto out_free_sb;
+"EXPERIMENTAL: Filesystem with Large Block Size (%d bytes) enabled.",
+ mp->m_sb.sb_blocksize);
}
/* Ensure this filesystem fits in the page cache limits */
--
2.43.0
