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authorBrian Foster <bfoster@redhat.com>2015-05-29 08:54:03 +1000
committerDave Chinner <david@fromorbit.com>2015-05-29 08:54:03 +1000
commitfb4f2b4e5a82db69e89cb78fb9ef6093543c4b88 (patch)
tree6e879ad092315a0001150de615d9fc8567495e53 /fs/xfs
parentbfe46d4eb9258cb3340eaf77a07ecc45875b3b17 (diff)
downloadop-kernel-dev-fb4f2b4e5a82db69e89cb78fb9ef6093543c4b88.zip
op-kernel-dev-fb4f2b4e5a82db69e89cb78fb9ef6093543c4b88.tar.gz
xfs: add sparse inode chunk alignment superblock field
Add sb_spino_align to the superblock to specify sparse inode chunk alignment. This also currently represents the minimum allowable sparse chunk allocation size. Signed-off-by: Brian Foster <bfoster@redhat.com>
Diffstat (limited to 'fs/xfs')
-rw-r--r--fs/xfs/libxfs/xfs_format.h4
-rw-r--r--fs/xfs/libxfs/xfs_sb.c4
2 files changed, 4 insertions, 4 deletions
diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h
index 4daaa66..899d6b4 100644
--- a/fs/xfs/libxfs/xfs_format.h
+++ b/fs/xfs/libxfs/xfs_format.h
@@ -170,7 +170,7 @@ typedef struct xfs_sb {
__uint32_t sb_features_log_incompat;
__uint32_t sb_crc; /* superblock crc */
- __uint32_t sb_pad;
+ xfs_extlen_t sb_spino_align; /* sparse inode chunk alignment */
xfs_ino_t sb_pquotino; /* project quota inode */
xfs_lsn_t sb_lsn; /* last write sequence */
@@ -256,7 +256,7 @@ typedef struct xfs_dsb {
__be32 sb_features_log_incompat;
__le32 sb_crc; /* superblock crc */
- __be32 sb_pad;
+ __be32 sb_spino_align; /* sparse inode chunk alignment */
__be64 sb_pquotino; /* project quota inode */
__be64 sb_lsn; /* last write sequence */
diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c
index dc4bfc5..32739a3 100644
--- a/fs/xfs/libxfs/xfs_sb.c
+++ b/fs/xfs/libxfs/xfs_sb.c
@@ -374,7 +374,7 @@ __xfs_sb_from_disk(
be32_to_cpu(from->sb_features_log_incompat);
/* crc is only used on disk, not in memory; just init to 0 here. */
to->sb_crc = 0;
- to->sb_pad = 0;
+ to->sb_spino_align = be32_to_cpu(from->sb_spino_align);
to->sb_pquotino = be64_to_cpu(from->sb_pquotino);
to->sb_lsn = be64_to_cpu(from->sb_lsn);
/* Convert on-disk flags to in-memory flags? */
@@ -516,7 +516,7 @@ xfs_sb_to_disk(
cpu_to_be32(from->sb_features_incompat);
to->sb_features_log_incompat =
cpu_to_be32(from->sb_features_log_incompat);
- to->sb_pad = 0;
+ to->sb_spino_align = cpu_to_be32(from->sb_spino_align);
to->sb_lsn = cpu_to_be64(from->sb_lsn);
}
}
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