mirror of
https://github.com/apache/nuttx-apps.git
synced 2026-08-01 20:29:00 +00:00
b695ec057f
xipfs has a defragmentation ioctl and no way to reach it from a shell. The only caller was a demo in examples/nxflatxip, which built its own block map to show what compaction had done. xipfs [-n] [-t <ms>] [<mountpoint>] -n surveys and reports without moving anything: where each file sits, a map of the volume, and how much of the free space a single allocation can reach. That last number is the one a caller facing -ENOSPC actually wants; at 0% the largest possible file already fits however scattered the map looks. The compaction is asked for through a descriptor for the mountpoint directory, so no file inside the volume is open while it runs and a single pass can reach every extent. The walk descends into the directories xipfs synthesises from names, and reports each file by its path relative to the mount, so a volume that uses them is described in full rather than down to its first level. Block totals come from statfs rather than XIPFSIOC_EXTENTINFO, because that one does name a file and an empty volume has none, yet its geometry is still worth reporting. Assisted-by: Claude Code:claude-opus-4-8 Signed-off-by: Marco Casaroli <marco.casaroli@gmail.com>
38 lines
972 B
Text
38 lines
972 B
Text
#
|
|
# For a description of the syntax of this configuration file,
|
|
# see the file kconfig-language.txt in the NuttX tools repository.
|
|
#
|
|
|
|
config SYSTEM_XIPFS
|
|
tristate "xipfs defragmentation command"
|
|
default n
|
|
depends on FS_XIPFS
|
|
---help---
|
|
Enable the 'xipfs' command, which compacts a xipfs volume and
|
|
reports how its erase blocks are laid out. With -n it only
|
|
reports -- block usage, a map of the volume, and how much of the
|
|
free space a single allocation can reach -- and moves nothing.
|
|
|
|
if SYSTEM_XIPFS
|
|
|
|
config SYSTEM_XIPFS_PROGNAME
|
|
string "Program name"
|
|
default "xipfs"
|
|
---help---
|
|
The name of the command as it appears in NSH.
|
|
|
|
config SYSTEM_XIPFS_MOUNTPOINT
|
|
string "Default mountpoint"
|
|
default "/mnt/xipfs"
|
|
---help---
|
|
The volume operated on when none is given on the command line.
|
|
|
|
config SYSTEM_XIPFS_PRIORITY
|
|
int "Task priority"
|
|
default 100
|
|
|
|
config SYSTEM_XIPFS_STACKSIZE
|
|
int "Stack size"
|
|
default DEFAULT_TASK_STACKSIZE
|
|
|
|
endif # SYSTEM_XIPFS
|