From: Vladimir Saveliev <Vladimir.Saveliev@sun.com>
Date: Sat, 17 Jul 2010 00:14:12 +0000 (+0400)
Subject: b=13698 LL_IOC_RECREATE_FID
X-Git-Tag: 2.0.0.51~17
X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=commitdiff_plain;h=942a9ad2fb230abe2290ae08aad748b5a58c9148;ds=sidebyside

b=13698 LL_IOC_RECREATE_FID

define new ioctl for object replicate
it uses IDIF FID instead of truct ll_recreate_obj
old LL_IOC_RECREATE is kept for compatibility

i=andreas.dilger
i=di.wang
---

diff --git a/lustre/include/lustre/lustre_user.h b/lustre/include/lustre/lustre_user.h
index e949fe1..06ea33e 100644
--- a/lustre/include/lustre/lustre_user.h
+++ b/lustre/include/lustre/lustre_user.h
@@ -122,6 +122,7 @@ struct obd_statfs {
 #define LL_IOC_LOV_GETSTRIPE            _IOW ('f', 155, long)
 #define LL_IOC_LOV_SETEA                _IOW ('f', 156, long)
 #define LL_IOC_RECREATE_OBJ             _IOW ('f', 157, long)
+#define LL_IOC_RECREATE_FID             _IOW ('f', 157, struct lu_fid)
 #define LL_IOC_GROUP_LOCK               _IOW ('f', 158, long)
 #define LL_IOC_GROUP_UNLOCK             _IOW ('f', 159, long)
 #define LL_IOC_QUOTACHECK               _IOW ('f', 160, int)
@@ -226,7 +227,6 @@ struct lov_user_mds_data_v3 {
 
 struct ll_recreate_obj {
         __u64 lrc_id;
-        __u64 lrc_seq;
         __u32 lrc_ost_idx;
 };
 
diff --git a/lustre/llite/file.c b/lustre/llite/file.c
index af88693..f2a8d14 100644
--- a/lustre/llite/file.c
+++ b/lustre/llite/file.c
@@ -1198,11 +1198,10 @@ static ssize_t ll_file_splice_read(struct file *in_file, loff_t *ppos,
 }
 #endif
 
-static int ll_lov_recreate_obj(struct inode *inode, struct file *file,
-                               unsigned long arg)
+static int ll_lov_recreate(struct inode *inode, obd_id id, obd_seq seq,
+                           obd_count ost_idx)
 {
         struct obd_export *exp = ll_i2dtexp(inode);
-        struct ll_recreate_obj ucreatp;
         struct obd_trans_info oti = { 0 };
         struct obdo *oa = NULL;
         int lsm_size;
@@ -1210,13 +1209,6 @@ static int ll_lov_recreate_obj(struct inode *inode, struct file *file,
         struct lov_stripe_md *lsm, *lsm2;
         ENTRY;
 
-        if (!cfs_capable(CFS_CAP_SYS_ADMIN))
-                RETURN(-EPERM);
-
-        if (cfs_copy_from_user(&ucreatp, (struct ll_recreate_obj *)arg,
-                               sizeof(struct ll_recreate_obj)))
-                RETURN(-EFAULT);
-
         OBDO_ALLOC(oa);
         if (oa == NULL)
                 RETURN(-ENOMEM);
@@ -1232,9 +1224,9 @@ static int ll_lov_recreate_obj(struct inode *inode, struct file *file,
         if (lsm2 == NULL)
                 GOTO(out, rc = -ENOMEM);
 
-        oa->o_id = ucreatp.lrc_id;
-        oa->o_seq = ucreatp.lrc_seq;
-        oa->o_nlink = ucreatp.lrc_ost_idx;
+        oa->o_id = id;
+        oa->o_seq = seq;
+        oa->o_nlink = ost_idx;
         oa->o_flags |= OBD_FL_RECREATE_OBJS;
         oa->o_valid = OBD_MD_FLID | OBD_MD_FLFLAGS | OBD_MD_FLGROUP;
         obdo_from_inode(oa, inode, &ll_i2info(inode)->lli_fid, OBD_MD_FLTYPE |
@@ -1250,6 +1242,41 @@ out:
         return rc;
 }
 
+static int ll_lov_recreate_obj(struct inode *inode, unsigned long arg)
+{
+        struct ll_recreate_obj ucreat;
+        ENTRY;
+
+        if (!cfs_capable(CFS_CAP_SYS_ADMIN))
+                RETURN(-EPERM);
+
+        if (cfs_copy_from_user(&ucreat, (struct ll_recreate_obj *)arg,
+                               sizeof(struct ll_recreate_obj)))
+                RETURN(-EFAULT);
+
+        RETURN(ll_lov_recreate(inode, ucreat.lrc_id, 0,
+                               ucreat.lrc_ost_idx));
+}
+
+static int ll_lov_recreate_fid(struct inode *inode, unsigned long arg)
+{
+        struct lu_fid fid;
+        obd_id id;
+        obd_count ost_idx;
+        ENTRY;
+
+        if (!cfs_capable(CFS_CAP_SYS_ADMIN))
+                RETURN(-EPERM);
+
+        if (cfs_copy_from_user(&fid, (struct lu_fid *)arg,
+                               sizeof(struct lu_fid)))
+                RETURN(-EFAULT);
+
+        id = fid_oid(&fid) | ((fid_seq(&fid) & 0xffff) << 32);
+        ost_idx = (fid_seq(&fid) >> 16) & 0xffff;
+        RETURN(ll_lov_recreate(inode, id, 0, ost_idx));
+}
+
 int ll_lov_setstripe_ea_info(struct inode *inode, struct file *file,
                              int flags, struct lov_user_md *lum, int lum_size)
 {
@@ -1747,7 +1774,9 @@ int ll_file_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
         case LL_IOC_LOV_GETSTRIPE:
                 RETURN(ll_lov_getstripe(inode, arg));
         case LL_IOC_RECREATE_OBJ:
-                RETURN(ll_lov_recreate_obj(inode, file, arg));
+                RETURN(ll_lov_recreate_obj(inode, arg));
+        case LL_IOC_RECREATE_FID:
+                RETURN(ll_lov_recreate_fid(inode, arg));
         case FSFILT_IOC_FIEMAP:
                 RETURN(ll_ioctl_fiemap(inode, arg));
         case FSFILT_IOC_GETFLAGS: