#define LL_MAX_BLKSIZE_BITS (22)
#define LL_MAX_BLKSIZE (1UL<<LL_MAX_BLKSIZE_BITS)
-#include "lustre/lustre_user.h"
-
-struct lustre_rw_params {
- int lrp_lock_mode;
- ldlm_policy_data_t lrp_policy;
- u32 lrp_brw_flags;
- int lrp_ast_flags;
-};
-
-/*
- * XXX nikita: this function lives in the header because it is used by both
- * llite kernel module and liblustre library, and there is no (?) better place
- * to put it in.
- */
-static inline void lustre_build_lock_params(int cmd, unsigned long open_flags,
- __u64 connect_flags,
- loff_t pos, ssize_t len,
- struct lustre_rw_params *params)
-{
- params->lrp_lock_mode = (cmd == OBD_BRW_READ) ? LCK_PR : LCK_PW;
- params->lrp_brw_flags = 0;
-
- params->lrp_policy.l_extent.start = pos;
- params->lrp_policy.l_extent.end = pos + len - 1;
- /*
- * for now O_APPEND always takes local locks.
- */
- if (cmd == OBD_BRW_WRITE && (open_flags & O_APPEND)) {
- params->lrp_policy.l_extent.start = 0;
- params->lrp_policy.l_extent.end = OBD_OBJECT_EOF;
- } else if (LIBLUSTRE_CLIENT && (connect_flags & OBD_CONNECT_SRVLOCK)) {
- /*
- * liblustre: OST-side locking for all non-O_APPEND
- * reads/writes.
- */
- params->lrp_lock_mode = LCK_NL;
- params->lrp_brw_flags = OBD_BRW_SRVLOCK;
- } else {
- /*
- * nothing special for the kernel. In the future llite may use
- * OST-side locks for small writes into highly contended
- * files.
- */
- }
- params->lrp_ast_flags = (open_flags & O_NONBLOCK) ?
- LDLM_FL_BLOCK_NOWAIT : 0;
-}
-
/*
* This is embedded into liblustre and llite super-blocks to keep track of
* connect flags (capabilities) supported by all imports given mount is