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-rw-r--r--fs/ocfs2/dlmglue.c2
-rw-r--r--fs/ocfs2/dlmglue.h4
-rw-r--r--fs/ocfs2/inode.c3
-rw-r--r--fs/ocfs2/inode.h1
-rw-r--r--fs/ocfs2/ocfs2.h7
-rw-r--r--fs/ocfs2/ocfs2_fs.h44
6 files changed, 57 insertions, 4 deletions
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index f71250ed166..41c76ff2fcf 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -1482,6 +1482,7 @@ static void __ocfs2_stuff_meta_lvb(struct inode *inode)
lvb->lvb_imtime_packed =
cpu_to_be64(ocfs2_pack_timespec(&inode->i_mtime));
lvb->lvb_iattr = cpu_to_be32(oi->ip_attr);
+ lvb->lvb_idynfeatures = cpu_to_be16(oi->ip_dyn_features);
lvb->lvb_igeneration = cpu_to_be32(inode->i_generation);
out:
@@ -1515,6 +1516,7 @@ static void ocfs2_refresh_inode_from_lvb(struct inode *inode)
i_size_write(inode, be64_to_cpu(lvb->lvb_isize));
oi->ip_attr = be32_to_cpu(lvb->lvb_iattr);
+ oi->ip_dyn_features = be16_to_cpu(lvb->lvb_idynfeatures);
ocfs2_set_inode_flags(inode);
/* fast-symlinks are a special case */
diff --git a/fs/ocfs2/dlmglue.h b/fs/ocfs2/dlmglue.h
index 492bad32a8c..87a785e4120 100644
--- a/fs/ocfs2/dlmglue.h
+++ b/fs/ocfs2/dlmglue.h
@@ -29,12 +29,12 @@
#include "dcache.h"
-#define OCFS2_LVB_VERSION 4
+#define OCFS2_LVB_VERSION 5
struct ocfs2_meta_lvb {
__u8 lvb_version;
__u8 lvb_reserved0;
- __be16 lvb_reserved1;
+ __be16 lvb_idynfeatures;
__be32 lvb_iclusters;
__be32 lvb_iuid;
__be32 lvb_igid;
diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c
index c53a6763bbb..c8923bab422 100644
--- a/fs/ocfs2/inode.c
+++ b/fs/ocfs2/inode.c
@@ -241,6 +241,7 @@ int ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe,
OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters);
OCFS2_I(inode)->ip_attr = le32_to_cpu(fe->i_attr);
+ OCFS2_I(inode)->ip_dyn_features = le16_to_cpu(fe->i_dyn_features);
inode->i_version = 1;
inode->i_generation = le32_to_cpu(fe->i_generation);
@@ -1220,6 +1221,7 @@ int ocfs2_mark_inode_dirty(handle_t *handle,
fe->i_clusters = cpu_to_le32(OCFS2_I(inode)->ip_clusters);
ocfs2_get_inode_flags(OCFS2_I(inode));
fe->i_attr = cpu_to_le32(OCFS2_I(inode)->ip_attr);
+ fe->i_dyn_features = cpu_to_le16(OCFS2_I(inode)->ip_dyn_features);
spin_unlock(&OCFS2_I(inode)->ip_lock);
fe->i_size = cpu_to_le64(i_size_read(inode));
@@ -1257,6 +1259,7 @@ void ocfs2_refresh_inode(struct inode *inode,
OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters);
OCFS2_I(inode)->ip_attr = le32_to_cpu(fe->i_attr);
+ OCFS2_I(inode)->ip_dyn_features = le16_to_cpu(fe->i_dyn_features);
ocfs2_set_inode_flags(inode);
i_size_write(inode, le64_to_cpu(fe->i_size));
inode->i_nlink = le16_to_cpu(fe->i_links_count);
diff --git a/fs/ocfs2/inode.h b/fs/ocfs2/inode.h
index a41d0817121..70e881c5553 100644
--- a/fs/ocfs2/inode.h
+++ b/fs/ocfs2/inode.h
@@ -51,6 +51,7 @@ struct ocfs2_inode_info
u32 ip_flags; /* see below */
u32 ip_attr; /* inode attributes */
+ u16 ip_dyn_features;
/* protected by recovery_lock. */
struct inode *ip_next_orphan;
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index 58307853fb4..60a23e1906b 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -319,6 +319,13 @@ static inline int ocfs2_writes_unwritten_extents(struct ocfs2_super *osb)
return 0;
}
+static inline int ocfs2_supports_inline_data(struct ocfs2_super *osb)
+{
+ if (osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_INLINE_DATA)
+ return 1;
+ return 0;
+}
+
/* set / clear functions because cluster events can make these happen
* in parallel so we want the transitions to be atomic. this also
* means that any future flags osb_flags must be protected by spinlock
diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h
index bf10a545383..6ef876759a7 100644
--- a/fs/ocfs2/ocfs2_fs.h
+++ b/fs/ocfs2/ocfs2_fs.h
@@ -87,7 +87,8 @@
#define OCFS2_FEATURE_COMPAT_SUPP OCFS2_FEATURE_COMPAT_BACKUP_SB
#define OCFS2_FEATURE_INCOMPAT_SUPP (OCFS2_FEATURE_INCOMPAT_LOCAL_MOUNT \
- | OCFS2_FEATURE_INCOMPAT_SPARSE_ALLOC)
+ | OCFS2_FEATURE_INCOMPAT_SPARSE_ALLOC \
+ | OCFS2_FEATURE_INCOMPAT_INLINE_DATA)
#define OCFS2_FEATURE_RO_COMPAT_SUPP OCFS2_FEATURE_RO_COMPAT_UNWRITTEN
/*
@@ -121,6 +122,9 @@
*/
#define OCFS2_FEATURE_INCOMPAT_TUNEFS_INPROG 0x0020
+/* Support for data packed into inode blocks */
+#define OCFS2_FEATURE_INCOMPAT_INLINE_DATA 0x0040
+
/*
* backup superblock flag is used to indicate that this volume
* has backup superblocks.
@@ -162,6 +166,17 @@
#define OCFS2_CHAIN_FL (0x00000400) /* Chain allocator */
#define OCFS2_DEALLOC_FL (0x00000800) /* Truncate log */
+/*
+ * Flags on ocfs2_dinode.i_dyn_features
+ *
+ * These can change much more often than i_flags. When adding flags,
+ * keep in mind that i_dyn_features is only 16 bits wide.
+ */
+#define OCFS2_INLINE_DATA_FL (0x0001) /* Data stored in inode block */
+#define OCFS2_HAS_XATTR_FL (0x0002)
+#define OCFS2_INLINE_XATTR_FL (0x0004)
+#define OCFS2_INDEXED_DIR_FL (0x0008)
+
/* Inode attributes, keep in sync with EXT2 */
#define OCFS2_SECRM_FL (0x00000001) /* Secure deletion */
#define OCFS2_UNRM_FL (0x00000002) /* Undelete */
@@ -487,6 +502,19 @@ struct ocfs2_local_alloc
};
/*
+ * Data-in-inode header. This is only used if i_dyn_features has
+ * OCFS2_INLINE_DATA_FL set.
+ */
+struct ocfs2_inline_data
+{
+/*00*/ __le16 id_count; /* Number of bytes that can be used
+ * for data, starting at id_data */
+ __le16 id_reserved0;
+ __le32 id_reserved1;
+ __u8 id_data[0]; /* Start of user data */
+};
+
+/*
* On disk inode for OCFS2
*/
struct ocfs2_dinode {
@@ -518,7 +546,7 @@ struct ocfs2_dinode {
__le32 i_attr;
__le16 i_orphaned_slot; /* Only valid when OCFS2_ORPHANED_FL
was set in i_flags */
- __le16 i_reserved1;
+ __le16 i_dyn_features;
/*70*/ __le64 i_reserved2[8];
/*B8*/ union {
__le64 i_pad1; /* Generic way to refer to this
@@ -544,6 +572,7 @@ struct ocfs2_dinode {
struct ocfs2_chain_list i_chain;
struct ocfs2_extent_list i_list;
struct ocfs2_truncate_log i_dealloc;
+ struct ocfs2_inline_data i_data;
__u8 i_symlink[0];
} id2;
/* Actual on-disk size is one block */
@@ -593,6 +622,12 @@ static inline int ocfs2_fast_symlink_chars(struct super_block *sb)
offsetof(struct ocfs2_dinode, id2.i_symlink);
}
+static inline int ocfs2_max_inline_data(struct super_block *sb)
+{
+ return sb->s_blocksize -
+ offsetof(struct ocfs2_dinode, id2.i_data.id_data);
+}
+
static inline int ocfs2_extent_recs_per_inode(struct super_block *sb)
{
int size;
@@ -672,6 +707,11 @@ static inline int ocfs2_fast_symlink_chars(int blocksize)
return blocksize - offsetof(struct ocfs2_dinode, id2.i_symlink);
}
+static inline int ocfs2_max_inline_data(int blocksize)
+{
+ return blocksize - offsetof(struct ocfs2_dinode, id2.i_data.id_data);
+}
+
static inline int ocfs2_extent_recs_per_inode(int blocksize)
{
int size;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-27 21:21:39 +0000