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* [newlib-cygwin/main] Cygwin: fs_info: check for SSD
@ 2023-11-30 21:40 Corinna Vinschen
0 siblings, 0 replies; only message in thread
From: Corinna Vinschen @ 2023-11-30 21:40 UTC (permalink / raw)
To: cygwin-cvs
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=8b01c5d6903fbcbb14c52db45c12494b53493c5a
commit 8b01c5d6903fbcbb14c52db45c12494b53493c5a
Author: Corinna Vinschen <corinna@vinschen.de>
AuthorDate: Thu Nov 30 22:13:49 2023 +0100
Commit: Corinna Vinschen <corinna@vinschen.de>
CommitDate: Thu Nov 30 22:37:35 2023 +0100
Cygwin: fs_info: check for SSD
During fs_info::update, check for the file being on an SSD.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Diff:
---
winsup/cygwin/local_includes/mount.h | 4 ++++
winsup/cygwin/mount.cc | 14 ++++++++++++++
2 files changed, 18 insertions(+)
diff --git a/winsup/cygwin/local_includes/mount.h b/winsup/cygwin/local_includes/mount.h
index 5bb84b9769cb..57c89e010161 100644
--- a/winsup/cygwin/local_includes/mount.h
+++ b/winsup/cygwin/local_includes/mount.h
@@ -69,6 +69,7 @@ class fs_info
ULONG name_len; /* MaximumComponentNameLength */
fs_info_type fs_type; /* Filesystem type */
unsigned is_remote_drive : 1;
+ unsigned is_ssd : 1;
unsigned has_acls : 1;
unsigned hasgood_inode : 1;
unsigned caseinsensitive : 1;
@@ -80,6 +81,8 @@ class fs_info
ULONG sernum; /* Volume Serial Number */
char fsn[80]; /* Windows filesystem name */
+ void check_ssd (HANDLE);
+
public:
void clear ()
{
@@ -93,6 +96,7 @@ class fs_info
IMPLEMENT_STATUS_FLAG (ULONG, samba_version)
IMPLEMENT_STATUS_FLAG (ULONG, name_len)
IMPLEMENT_STATUS_FLAG (bool, is_remote_drive)
+ IMPLEMENT_STATUS_FLAG (bool, is_ssd)
IMPLEMENT_STATUS_FLAG (bool, has_acls)
IMPLEMENT_STATUS_FLAG (bool, hasgood_inode)
IMPLEMENT_STATUS_FLAG (bool, caseinsensitive)
diff --git a/winsup/cygwin/mount.cc b/winsup/cygwin/mount.cc
index 13ace6250438..9545d22e0768 100644
--- a/winsup/cygwin/mount.cc
+++ b/winsup/cygwin/mount.cc
@@ -523,8 +523,22 @@ fs_info::update (PUNICODE_STRING upath, HANDLE in_vol)
caseinsensitive ((!(flags () & FILE_CASE_SENSITIVE_SEARCH) || is_samba ())
&& !is_nfs ());
+ /* Check for being an SSD */
+ if (!is_remote_drive () && !is_cdrom ())
+ {
+ /* Theoretically FileFsVolumeFlagsInformation would be sufficient,
+ but apparently it's not exposed into userspace. */
+ FILE_FS_SECTOR_SIZE_INFORMATION ffssi;
+
+ status = NtQueryVolumeInformationFile (vol, &io, &ffssi, sizeof ffssi,
+ FileFsSectorSizeInformation);
+ if (NT_SUCCESS (status))
+ is_ssd (!!(ffssi.Flags & SSINFO_FLAGS_NO_SEEK_PENALTY));
+ }
+
if (!in_vol)
NtClose (vol);
+
fsi_cache.add (hash, this);
return true;
}
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