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authorFeng Tian <feng.tian@intel.com>2011-11-22 03:01:14 +0000
committerJordan Justen <jordan.l.justen@intel.com>2016-04-06 23:22:43 -0700
commit1d951a3086ab569073ee60e890a1cddf512d122c (patch)
tree1585e9ab1a8399bb38a6e7a62bf7da685b380a2a /FatPkg
parent4d0e0c4510719cea131701edb667160d75f3bff9 (diff)
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Only traverse recovery file's FAT table to fast the recovery performance.
Signed-off-by: erictian Reviewed-by: niruiyu (based on FatPkg commit 6e68a62cf0c6b8ecad2bceff4e8d86ff08d1f041) [jordan.l.justen@intel.com: Use script to relicense to 2-clause BSD] Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Acked-by: Mark Doran <mark.doran@intel.com> Acked-by: Laszlo Ersek <lersek@redhat.com>
Diffstat (limited to 'FatPkg')
-rw-r--r--FatPkg/FatPei/FatLiteAccess.c10
-rw-r--r--FatPkg/FatPei/FatLiteApi.c13
2 files changed, 17 insertions, 6 deletions
diff --git a/FatPkg/FatPei/FatLiteAccess.c b/FatPkg/FatPei/FatLiteAccess.c
index 0a688a3185..53f5e3f60c 100644
--- a/FatPkg/FatPei/FatLiteAccess.c
+++ b/FatPkg/FatPei/FatLiteAccess.c
@@ -1,7 +1,7 @@
/** @file
FAT file system access routines for FAT recovery PEIM
-Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials are licensed and made available
under the terms and conditions of the BSD License which accompanies this
@@ -315,7 +315,10 @@ FatSetFilePos (
}
File->CurrentPos += Pos;
-
+ //
+ // Calculate the amount of consecutive cluster occupied by the file.
+ // FatReadFile() will use it to read these blocks once.
+ //
File->StraightReadAmount = 0;
Cluster = File->CurrentCluster;
while (!FAT_CLUSTER_FUNCTIONAL (Cluster)) {
@@ -517,9 +520,6 @@ FatReadNextDirectoryEntry (
SubFile->StartingCluster = SubFile->CurrentCluster;
SubFile->Volume = ParentDir->Volume;
- if (SubFile->StartingCluster != 0) {
- Status = FatSetFilePos (PrivateData, SubFile, 0);
- }
//
// in Pei phase, time parameters do not need to be filled for minimum use.
//
diff --git a/FatPkg/FatPei/FatLiteApi.c b/FatPkg/FatPei/FatLiteApi.c
index bf8158d94f..46054be284 100644
--- a/FatPkg/FatPei/FatLiteApi.c
+++ b/FatPkg/FatPei/FatLiteApi.c
@@ -1,7 +1,7 @@
/** @file
FAT recovery PEIM entry point, Ppi Functions and FAT Api functions.
-Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials are licensed and made available
under the terms and conditions of the BSD License which accompanies this
@@ -577,6 +577,7 @@ FindRecoveryFile (
//
// Construct root directory file
//
+ ZeroMem (&Parent, sizeof (PEI_FAT_FILE));
Parent.IsFixedRootDir = (BOOLEAN) ((PrivateData->Volume[VolumeIndex].FatType == Fat32) ? FALSE : TRUE);
Parent.Attributes = FAT_ATTR_DIRECTORY;
Parent.CurrentPos = 0;
@@ -593,6 +594,9 @@ FindRecoveryFile (
//
Status = FatReadNextDirectoryEntry (PrivateData, &Parent, File);
while (Status == EFI_SUCCESS) {
+ //
+ // Compare whether the file name is recovery file name.
+ //
if (EngStriColl (PrivateData, FileName, File->FileName)) {
break;
}
@@ -604,6 +608,13 @@ FindRecoveryFile (
return EFI_NOT_FOUND;
}
+ //
+ // Get the recovery file, set its file position to 0.
+ //
+ if (File->StartingCluster != 0) {
+ Status = FatSetFilePos (PrivateData, File, 0);
+ }
+
*Handle = File;
return EFI_SUCCESS;