DLPX-40252 integrate EP-476 compressed zfs send/receive

[mirror_zfs.git] / include / sys / arc.h

diff --git a/include/sys/arc.h b/include/sys/arc.h
index 13788a9b671c44956baafadd8ab57afd767a5234..97529c3fc3ae0522ee04ddcc3e385e45933c9d63 100644 (file)
--- a/include/sys/arc.h
+++ b/include/sys/arc.h
@@ -142,11 +142,17 @@ typedef enum arc_flags
 
 } arc_flags_t;
 
+typedef enum arc_buf_flags {
+       ARC_BUF_FLAG_SHARED             = 1 << 0,
+       ARC_BUF_FLAG_COMPRESSED         = 1 << 1
+} arc_buf_flags_t;
+
 struct arc_buf {
        arc_buf_hdr_t           *b_hdr;
        arc_buf_t               *b_next;
        kmutex_t                b_evict_lock;
        void                    *b_data;
+       arc_buf_flags_t         b_prop_flags;
 };
 
 typedef enum arc_buf_contents {
@@ -201,14 +207,22 @@ typedef struct arc_buf_info {
 
 void arc_space_consume(uint64_t space, arc_space_type_t type);
 void arc_space_return(uint64_t space, arc_space_type_t type);
-arc_buf_t *arc_alloc_buf(spa_t *spa, int32_t size, void *tag,
-    arc_buf_contents_t type);
-arc_buf_t *arc_loan_buf(spa_t *spa, uint64_t size);
+boolean_t arc_is_metadata(arc_buf_t *buf);
+enum zio_compress arc_get_compression(arc_buf_t *buf);
+int arc_decompress(arc_buf_t *buf);
+arc_buf_t *arc_alloc_buf(spa_t *spa, void *tag, arc_buf_contents_t type,
+    int32_t size);
+arc_buf_t *arc_alloc_compressed_buf(spa_t *spa, void *tag,
+    uint64_t psize, uint64_t lsize, enum zio_compress compression_type);
+arc_buf_t *arc_loan_buf(spa_t *spa, boolean_t is_metadata, int size);
+arc_buf_t *arc_loan_compressed_buf(spa_t *spa, uint64_t psize, uint64_t lsize,
+    enum zio_compress compression_type);
 void arc_return_buf(arc_buf_t *buf, void *tag);
 void arc_loan_inuse_buf(arc_buf_t *buf, void *tag);
 void arc_buf_destroy(arc_buf_t *buf, void *tag);
 void arc_buf_info(arc_buf_t *buf, arc_buf_info_t *abi, int state_index);
 uint64_t arc_buf_size(arc_buf_t *buf);
+uint64_t arc_buf_lsize(arc_buf_t *buf);
 void arc_release(arc_buf_t *buf, void *tag);
 int arc_released(arc_buf_t *buf);
 void arc_buf_sigsegv(int sig, siginfo_t *si, void *unused);