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ramdisk: implement trim and icon, add to image

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- B_TRIM_DEVICE on a ram disk frees all requested pages. Reading from a
  trimmed page returns all 0s. This can be used with fstrim to release
  memory for the parts not used by the filesystem, without unregistering
  then registering the device.
- Add icon and ioctl to get it.
- Add it to the image, because it works reasonably well and there is no
  reason not to include it.
This commit is contained in:
Adrien Destugues
2016-11-03 22:58:31 +01:00
parent b96788c95d
commit 96fef5d19f
3 changed files with 181 additions and 8 deletions
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build/jam/images/definitions/minimum
+2 -4
View File
@@ -19,11 +19,9 @@ SYSTEM_BIN = [ FFilterByBuildFeatures
modifiers mount mountvolume
netstat notify
open
package package_repo passwd pc ping ping6 pkgman
prio profile ps
package package_repo passwd pc ping ping6 pkgman prio profile ps
query quit
rc reindex release renice resattr rmattr rmindex roster
route
ramdisk rc reindex release renice resattr rmattr rmindex roster route
safemode screen_blanker screeninfo screenmode setarch setmime settype
setversion setvolume shutdown
strace su sysinfo system_time
build/jam/packages/Haiku
+1 -1
View File
@@ -64,7 +64,7 @@ if $(TARGET_ARCH) = x86 || $(TARGET_ARCH) = x86_64 {
# drivers
AddNewDriversToPackage disk scsi : scsi_cd scsi_disk ;
AddNewDriversToPackage disk virtual : virtio_block ;
AddNewDriversToPackage disk virtual : virtio_block ram_disk ;
AddNewDriversToPackage power : $(SYSTEM_ADD_ONS_DRIVERS_POWER) ;
#AddNewDriversToPackage display : display_adapter@x86 ;