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Cleanup MSG_DONTWAIT
[fio.git]
/
os
/
os-linux.h
diff --git
a/os/os-linux.h
b/os/os-linux.h
index df0ec2dbdb51a692cc52f93097a0238844aad1ef..f7154a4af2c16e32ea9e51989f22e4e7af9a8d21 100644
(file)
--- a/
os/os-linux.h
+++ b/
os/os-linux.h
@@
-36,6
+36,7
@@
#define FIO_HAVE_CGROUPS
#define FIO_HAVE_FDATASYNC
#define FIO_HAVE_FS_STAT
#define FIO_HAVE_CGROUPS
#define FIO_HAVE_FDATASYNC
#define FIO_HAVE_FS_STAT
+#define FIO_HAVE_TRIM
#ifdef SYNC_FILE_RANGE_WAIT_BEFORE
#define FIO_HAVE_SYNC_FILE_RANGE
#ifdef SYNC_FILE_RANGE_WAIT_BEFORE
#define FIO_HAVE_SYNC_FILE_RANGE
@@
-185,6
+186,10
@@
enum {
#define BLKFLSBUF _IO(0x12,97)
#endif
#define BLKFLSBUF _IO(0x12,97)
#endif
+#ifndef BLKDISCARD
+#define BLKDISCARD _IO(0x12,119)
+#endif
+
static inline int blockdev_invalidate_cache(int fd)
{
return ioctl(fd, BLKFLSBUF);
static inline int blockdev_invalidate_cache(int fd)
{
return ioctl(fd, BLKFLSBUF);
@@
-298,4
+303,18
@@
static inline unsigned long long get_fs_size(const char *path)
return ret;
}
return ret;
}
+static inline int os_trim(int fd, unsigned long long start,
+ unsigned long long len)
+{
+ uint64_t range[2];
+
+ range[0] = start;
+ range[1] = len;
+
+ if (!ioctl(fd, BLKDISCARD, range))
+ return 0;
+
+ return errno;
+}
+
#endif
#endif