nuttx/fs/tmpfs/Kconfig

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#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#
config FS_TMPFS
bool "TMPFS file system"
default n
depends on !DISABLE_MOUNTPOINT
select FS_READABLE
select FS_WRITABLE
---help---
Enable TMPFS filesystem support
if FS_TMPFS
config FS_TMPFS_DIRECTORY_ALLOCGUARD
int "Directory object over-allocation"
default 64
---help---
In order to avoid frequent reallocations, a little more memory than
needed is always allocated. This permits the directory to grow
without so many realloctions.
config FS_TMPFS_DIRECTORY_FREEGUARD
int "Directory under free"
default 128
---help---
In order to avoid frequent reallocations, a lot of free memory has
to be available before a directory entry shrinks (via reallocation)
little more memory than needed is always allocated. This permits
the directory to shrink without so many realloctions.
config FS_TMPFS_FILE_ALLOCGUARD
int "Directory object over-allocation"
default 512
---help---
In order to avoid frequent reallocations, a little more memory than
needed is always allocated. This permits the file to grow without
so many realloctions.
config FS_TMPFS_FILE_FREEGUARD
int "Directory under free"
default 1024
---help---
In order to avoid frequent reallocations, a lot of free memory has
to be available before a directory entry shrinks (via reallocation)
little more memory than needed is always allocated. This permits
the file to shrink without so many realloctions.
endif