LU-10171 lmv: avoid gratuitous 64-bit modulus

[fs/lustre-release.git] / lustre / include / obd.h

diff --git a/lustre/include/obd.h b/lustre/include/obd.h
index 6984f92..f651de9 100644 (file)
--- a/lustre/include/obd.h
+++ b/lustre/include/obd.h
@@ -257,9 +257,9 @@ struct client_obd {
        /* just a sum of the loi/lop pending numbers to be exported by /proc */
        atomic_t                cl_pending_w_pages;
        atomic_t                cl_pending_r_pages;
-       __u32                   cl_max_pages_per_rpc;
-       __u32                   cl_max_rpcs_in_flight;
-       __u32                   cl_short_io_bytes;
+       u32                     cl_max_pages_per_rpc;
+       u32                     cl_max_rpcs_in_flight;
+       u32                     cl_max_short_io_bytes;
        struct obd_histogram    cl_read_rpc_hist;
        struct obd_histogram    cl_write_rpc_hist;
        struct obd_histogram    cl_read_page_hist;
@@ -306,8 +306,6 @@ struct client_obd {
        atomic_t                 cl_destroy_in_flight;
        wait_queue_head_t        cl_destroy_waitq;
 
-        struct mdc_rpc_lock     *cl_rpc_lock;
-
        /* modify rpcs in flight
         * currently used for metadata only */
        spinlock_t               cl_mod_rpcs_lock;
@@ -443,16 +441,18 @@ struct lmv_obd {
        int                     connected;
        int                     max_easize;
        int                     max_def_easize;
+       u32                     lmv_statfs_start;
 
-       __u32                   tgts_size; /* size of tgts array */
+       u32                     tgts_size; /* size of tgts array */
        struct lmv_tgt_desc     **tgts;
-       int                     lmv_statfs_start;
-
 
        struct obd_connect_data conn_data;
        struct kobject          *lmv_tgts_kobj;
 };
 
+/* Minimum sector size is 512 */
+#define MAX_GUARD_NUMBER (PAGE_SIZE / 512)
+
 struct niobuf_local {
        __u64           lnb_file_offset;
        __u32           lnb_page_offset;
@@ -461,6 +461,9 @@ struct niobuf_local {
        int             lnb_rc;
        struct page     *lnb_page;
        void            *lnb_data;
+       __u16           lnb_guards[MAX_GUARD_NUMBER];
+       __u16           lnb_guard_rpc:1;
+       __u16           lnb_guard_disk:1;
 };
 
 struct tgt_thread_big_cache {
@@ -716,7 +719,6 @@ struct obd_device {
        /* Fields used by LProcFS */
        struct lprocfs_stats            *obd_stats;
 
-       unsigned int                     obd_md_cntr_base;
        struct lprocfs_stats            *obd_md_stats;
 
        struct dentry                   *obd_debugfs_entry;
@@ -778,6 +780,17 @@ struct obd_device {
 #define KEY_CACHE_LRU_SHRINK   "cache_lru_shrink"
 #define KEY_OSP_CONNECTED      "osp_connected"
 
+/* Flags for op_xvalid */
+enum op_xvalid {
+       OP_XVALID_CTIME_SET     = BIT(0),       /* 0x0001 */
+       OP_XVALID_BLOCKS        = BIT(1),       /* 0x0002 */
+       OP_XVALID_OWNEROVERRIDE = BIT(2),       /* 0x0004 */
+       OP_XVALID_FLAGS         = BIT(3),       /* 0x0008 */
+       OP_XVALID_PROJID        = BIT(4),       /* 0x0010 */
+       OP_XVALID_LAZYSIZE      = BIT(5),       /* 0x0020 */
+       OP_XVALID_LAZYBLOCKS    = BIT(6),       /* 0x0040 */
+};
+
 struct lu_context;
 
 static inline int it_to_lock_mode(struct lookup_intent *it)
@@ -831,10 +844,12 @@ struct md_op_data {
        struct lu_fid           op_fid4; /* to the operation locks. */
        u32                     op_mds;  /* what mds server open will go to */
        __u32                   op_mode;
-       struct lustre_handle    op_handle;
+       struct lustre_handle    op_open_handle;
        s64                     op_mod_time;
        const char              *op_name;
        size_t                  op_namelen;
+       struct rw_semaphore     *op_mea1_sem;
+       struct rw_semaphore     *op_mea2_sem;
        struct lmv_stripe_md    *op_mea1;
        struct lmv_stripe_md    *op_mea2;
        __u32                   op_suppgids[2];
@@ -846,9 +861,10 @@ struct md_op_data {
 
        /* iattr fields and blocks. */
        struct iattr            op_attr;
+       enum op_xvalid          op_xvalid;      /* eXtra validity flags */
        loff_t                  op_attr_blocks;
-       __u64                   op_valid; /* OBD_MD_* */
-       unsigned int            op_attr_flags; /* LUSTRE_{SYNC,..}_FL */
+       u64                     op_valid;       /* OBD_MD_* */
+       unsigned int            op_attr_flags;  /* LUSTRE_{SYNC,..}_FL */
 
        enum md_op_flags        op_flags;
 
@@ -877,6 +893,18 @@ struct md_op_data {
        unsigned int            op_max_pages;
 
        __u16                   op_mirror_id;
+
+       /*
+        * used to access migrating dir: if it's set, assume migration is
+        * finished, use the new layout to access dir, otherwise use old layout.
+        * By default it's not set, because new files are created under new
+        * layout, if we can't find file with name under both old and new
+        * layout, we are sure file with name doesn't exist, but in reverse
+        * order there may be a race with creation by others.
+        */
+       bool                    op_post_migrate;
+       /* used to access dir with bash hash */
+       __u32                   op_stripe_index;
 };
 
 struct md_callback {
@@ -1014,7 +1042,7 @@ struct md_open_data {
 };
 
 struct obd_client_handle {
-       struct lustre_handle     och_fh;
+       struct lustre_handle     och_open_handle;
        struct lu_fid            och_fid;
        struct md_open_data     *och_mod;
        struct lustre_handle     och_lease_handle; /* open lock for lease */
@@ -1028,18 +1056,6 @@ struct lookup_intent;
 struct cl_attr;
 
 struct md_ops {
-       /* Every operation from MD_STATS_FIRST_OP up to and including
-        * MD_STATS_LAST_OP will be counted by EXP_MD_OP_INCREMENT()
-        * and will appear in /proc/fs/lustre/{lmv,mdc}/.../md_stats.
-        * Operations after MD_STATS_LAST_OP are excluded from stats.
-        * There are a few reasons for doing this: we prune the 17
-        * counters which will be of minimal use in understanding
-        * metadata utilization, we save memory by allocating 15
-        * instead of 32 counters, we save cycles by not counting.
-        *
-        * MD_STATS_FIRST_OP must be the first member of md_ops.
-        */
-#define MD_STATS_FIRST_OP m_close
        int (*m_close)(struct obd_export *, struct md_op_data *,
                       struct md_open_data *, struct ptlrpc_request **);
 
@@ -1092,8 +1108,6 @@ struct md_ops {
         int (*m_revalidate_lock)(struct obd_export *, struct lookup_intent *,
                                  struct lu_fid *, __u64 *bits);
 
-#define MD_STATS_LAST_OP m_revalidate_lock
-
        int (*m_file_resync)(struct obd_export *, struct md_op_data *);
 
        int (*m_get_root)(struct obd_export *, const char *, struct lu_fid *);