From: Jianpeng Ma <jianpeng.ma@intel.com>
Date: Tue, 23 Jun 2015 06:13:54 +0000 (+0800)
Subject: rados: For export/import add correctly fadvise flags.
X-Git-Tag: v9.0.3~89^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=33a841527750e80b38557c12ed0431e067dff53a;p=ceph.git

rados: For export/import add correctly fadvise flags.

Signed-off-by: Jianpeng Ma <jianpeng.ma@intel.com>
---

diff --git a/src/tools/rados/PoolDump.cc b/src/tools/rados/PoolDump.cc
index efc274b6fa0e..fa230315e7ba 100644
--- a/src/tools/rados/PoolDump.cc
+++ b/src/tools/rados/PoolDump.cc
@@ -153,6 +153,8 @@ int PoolDump::dump(IoCtx *io_ctx)
   }
 
   r = write_simple(TYPE_POOL_END, file_fd);
+  if (file_fd != STDOUT_FILENO)
+    posix_fadvise(file_fd, 0, 0, POSIX_FADV_DONTNEED);
 
   return r;
 }
diff --git a/src/tools/rados/RadosImport.cc b/src/tools/rados/RadosImport.cc
index 9fe06c3577bb..32fee3811647 100644
--- a/src/tools/rados/RadosImport.cc
+++ b/src/tools/rados/RadosImport.cc
@@ -110,6 +110,9 @@ int RadosImport::import(librados::IoCtx &io_ctx, bool no_overwrite)
   }
 #endif
 
+  if (file_fd != STDIN_FILENO)
+    posix_fadvise(file_fd, 0, 0, POSIX_FADV_SEQUENTIAL);
+
   bool done = false;
   bool found_metadata = false;
   while(!done) {
@@ -149,6 +152,8 @@ int RadosImport::import(librados::IoCtx &io_ctx, bool no_overwrite)
     cerr << "Missing metadata section!" << std::endl;
   }
 
+  if (file_fd != STDIN_FILENO)
+    posix_fadvise(file_fd, 0, 0, POSIX_FADV_DONTNEED);
   return 0;
 }