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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>
This commit is contained in:
Corinna Vinschen 2023-11-30 22:13:49 +01:00
parent 61f49ada90
commit 8b01c5d690
2 changed files with 18 additions and 0 deletions
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4
winsup/cygwin/local_includes/mount.h
View File

@ -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)

14
winsup/cygwin/mount.cc
View File

@ -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;
}