[XFS] xlog_rec_header/xlog_rec_ext_header endianess annotations

Mostly trivial conversion with one exceptions: h_num_logops was kept in
native endian previously and only converted to big endian in xlog_sync,
but we always keep it big endian now. With todays cpus fast byteswap
instructions that's not an issue but the new variant keeps the code clean
and maintainable.

SGI-PV: 971186
SGI-Modid: xfs-linux-melb:xfs-kern:29821a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>

1 files changed, 20 insertions, 20 deletions

diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h
index d555aebca9bc..e008233ee249 100644
--- a/fs/xfs/xfs_log_priv.h
+++ b/fs/xfs/xfs_log_priv.h
@@ -63,10 +63,10 @@ static inline xfs_lsn_t xlog_assign_lsn(uint cycle, uint block)
 
 static inline uint xlog_get_cycle(char *ptr)
 {
-        if (INT_GET(*(uint *)ptr, ARCH_CONVERT) == XLOG_HEADER_MAGIC_NUM)
-                return INT_GET(*((uint *)ptr + 1), ARCH_CONVERT);
+        if (be32_to_cpu(*(__be32 *)ptr) == XLOG_HEADER_MAGIC_NUM)
+                return be32_to_cpu(*((__be32 *)ptr + 1));
         else
-                return INT_GET(*(uint *)ptr, ARCH_CONVERT);
+                return be32_to_cpu(*(__be32 *)ptr);
 }
 
 #define BLK_AVG(blk1, blk2)     ((blk1+blk2) >> 1)
@@ -85,9 +85,9 @@ static inline uint xlog_get_cycle(char *ptr)
  *
  * this has endian issues, of course.
  */
-static inline uint xlog_get_client_id(uint i)
+static inline uint xlog_get_client_id(__be32 i)
 {
-        return INT_GET(i, ARCH_CONVERT) >> 24;
+        return be32_to_cpu(i) >> 24;
 }
 
 #define xlog_panic(args...)     cmn_err(CE_PANIC, ## args)
@@ -287,25 +287,25 @@ typedef struct xlog_op_header {
 #endif
 
 typedef struct xlog_rec_header {
-        uint      h_magicno;    /* log record (LR) identifier           :  4 */
-        uint      h_cycle;      /* write cycle of log                   :  4 */
-        int       h_version;    /* LR version                           :  4 */
-        int       h_len;        /* len in bytes; should be 64-bit aligned: 4 */
-        xfs_lsn_t h_lsn;        /* lsn of this LR                       :  8 */
-        xfs_lsn_t h_tail_lsn;   /* lsn of 1st LR w/ buffers not committed: 8 */
-        uint      h_chksum;     /* may not be used; non-zero if used    :  4 */
-        int       h_prev_block; /* block number to previous LR          :  4 */
-        int       h_num_logops; /* number of log operations in this LR  :  4 */
-        uint      h_cycle_data[XLOG_HEADER_CYCLE_SIZE / BBSIZE];
+        __be32    h_magicno;    /* log record (LR) identifier           :  4 */
+        __be32    h_cycle;      /* write cycle of log                   :  4 */
+        __be32    h_version;    /* LR version                           :  4 */
+        __be32    h_len;        /* len in bytes; should be 64-bit aligned: 4 */
+        __be64    h_lsn;        /* lsn of this LR                       :  8 */
+        __be64    h_tail_lsn;   /* lsn of 1st LR w/ buffers not committed: 8 */
+        __be32    h_chksum;     /* may not be used; non-zero if used    :  4 */
+        __be32    h_prev_block; /* block number to previous LR          :  4 */
+        __be32    h_num_logops; /* number of log operations in this LR  :  4 */
+        __be32    h_cycle_data[XLOG_HEADER_CYCLE_SIZE / BBSIZE];
         /* new fields */
-        int       h_fmt;        /* format of log record                 :  4 */
-        uuid_t    h_fs_uuid;    /* uuid of FS                           : 16 */
-        int       h_size;       /* iclog size                           :  4 */
+        __be32    h_fmt;        /* format of log record                 :  4 */
+        uuid_t    h_fs_uuid;    /* uuid of FS                           : 16 */
+        __be32    h_size;       /* iclog size                           :  4 */
 } xlog_rec_header_t;
 
 typedef struct xlog_rec_ext_header {
-        uint      xh_cycle;     /* write cycle of log                   : 4 */
-        uint      xh_cycle_data[XLOG_HEADER_CYCLE_SIZE / BBSIZE]; /*    : 256 */
+        __be32    xh_cycle;     /* write cycle of log                   : 4 */
+        __be32    xh_cycle_data[XLOG_HEADER_CYCLE_SIZE / BBSIZE]; /*    : 256 */
 } xlog_rec_ext_header_t;
 
 #ifdef __KERNEL__