[Cluster-devel] [PATCH v6 1/9] iomap: inline data should be an iomap type, not a flag
Andreas Gruenbacher
agruenba at redhat.com
Sat Jun 2 09:57:09 UTC 2018
From: Christoph Hellwig <hch at lst.de>
Inline data is fundamentally different from our normal mapped case in that
it doesn't even have a block address. So instead of having a flag for it
it should be an entirely separate iomap range type.
Signed-off-by: Christoph Hellwig <hch at lst.de>
Signed-off-by: Andreas Gruenbacher <agruenba at redhat.com>
---
fs/ext4/inline.c | 4 ++--
fs/gfs2/bmap.c | 4 ++--
fs/iomap.c | 8 ++++----
include/linux/iomap.h | 2 +-
4 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index 70cf4c7b268a..e1f00891ef95 100644
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -1835,8 +1835,8 @@ int ext4_inline_data_iomap(struct inode *inode, struct iomap *iomap)
iomap->offset = 0;
iomap->length = min_t(loff_t, ext4_get_inline_size(inode),
i_size_read(inode));
- iomap->type = 0;
- iomap->flags = IOMAP_F_DATA_INLINE;
+ iomap->type = IOMAP_INLINE;
+ iomap->flags = 0;
out:
up_read(&EXT4_I(inode)->xattr_sem);
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index a7b586e02693..59a78056530a 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -767,8 +767,8 @@ static void gfs2_stuffed_iomap(struct inode *inode, struct iomap *iomap)
sizeof(struct gfs2_dinode);
iomap->offset = 0;
iomap->length = i_size_read(inode);
- iomap->type = IOMAP_MAPPED;
- iomap->flags = IOMAP_F_DATA_INLINE;
+ iomap->type = IOMAP_INLINE;
+ iomap->flags = 0;
}
/**
diff --git a/fs/iomap.c b/fs/iomap.c
index afd163586aa0..54b693da3a35 100644
--- a/fs/iomap.c
+++ b/fs/iomap.c
@@ -498,22 +498,22 @@ static int iomap_to_fiemap(struct fiemap_extent_info *fi,
case IOMAP_HOLE:
/* skip holes */
return 0;
+ case IOMAP_MAPPED:
+ break;
case IOMAP_DELALLOC:
flags |= FIEMAP_EXTENT_DELALLOC | FIEMAP_EXTENT_UNKNOWN;
break;
case IOMAP_UNWRITTEN:
flags |= FIEMAP_EXTENT_UNWRITTEN;
break;
- case IOMAP_MAPPED:
- break;
+ case IOMAP_INLINE:
+ flags |= FIEMAP_EXTENT_DATA_INLINE;
}
if (iomap->flags & IOMAP_F_MERGED)
flags |= FIEMAP_EXTENT_MERGED;
if (iomap->flags & IOMAP_F_SHARED)
flags |= FIEMAP_EXTENT_SHARED;
- if (iomap->flags & IOMAP_F_DATA_INLINE)
- flags |= FIEMAP_EXTENT_DATA_INLINE;
return fiemap_fill_next_extent(fi, iomap->offset,
iomap->addr != IOMAP_NULL_ADDR ? iomap->addr : 0,
diff --git a/include/linux/iomap.h b/include/linux/iomap.h
index 19a07de28212..918f14075702 100644
--- a/include/linux/iomap.h
+++ b/include/linux/iomap.h
@@ -18,6 +18,7 @@ struct vm_fault;
#define IOMAP_DELALLOC 0x02 /* delayed allocation blocks */
#define IOMAP_MAPPED 0x03 /* blocks allocated at @addr */
#define IOMAP_UNWRITTEN 0x04 /* blocks allocated at @addr in unwritten state */
+#define IOMAP_INLINE 0x05 /* data inline in the inode */
/*
* Flags for all iomap mappings:
@@ -34,7 +35,6 @@ struct vm_fault;
*/
#define IOMAP_F_MERGED 0x10 /* contains multiple blocks/extents */
#define IOMAP_F_SHARED 0x20 /* block shared with another file */
-#define IOMAP_F_DATA_INLINE 0x40 /* data inline in the inode */
/*
* Magic value for addr:
--
2.17.0
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