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From: Corinna Vinschen <corinna@sourceware.org> To: cygwin-cvs@sourceware.org Subject: [newlib-cygwin/main] Cygwin: fs_info: check for SSD Date: Thu, 30 Nov 2023 21:40:10 +0000 (GMT) [thread overview] Message-ID: <20231130214010.0B2F23870C14@sourceware.org> (raw) 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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