63 lines
1.9 KiB
Plaintext
63 lines
1.9 KiB
Plaintext
#
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# For a description of the syntax of this configuration file,
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# see the file kconfig-language.txt in the NuttX tools repository.
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#
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config FS_TMPFS
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bool "TMPFS file system"
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default n
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depends on !DISABLE_MOUNTPOINT
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---help---
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Enable TMPFS filesystem support
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if FS_TMPFS
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config FS_TMPFS_BLOCKSIZE
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int "Reported block size"
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default 512
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---help---
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Various queries expect the file system to report resources in units
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of blocks. There are, of course, no blocks with the TMPFS. This
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options is available to control how sizes are reported. For very
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small TMPFS systems, you might want to set this to something smaller
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the usual 512 bytes.
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config FS_TMPFS_DIRECTORY_ALLOCGUARD
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int "Directory object over-allocation"
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default 64
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---help---
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In order to avoid frequent reallocations, a little more memory than
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needed is always allocated. This permits the directory to grow
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without so many realloctions.
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config FS_TMPFS_DIRECTORY_FREEGUARD
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int "Directory under free"
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default 128
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---help---
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In order to avoid frequent reallocations, a lot of free memory has
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to be available before a directory entry shrinks (via reallocation)
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little more memory than needed is always allocated. This permits
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the directory to shrink without so many realloctions.
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config FS_TMPFS_FILE_ALLOCGUARD
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int "Directory object over-allocation"
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default 512
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---help---
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In order to avoid frequent reallocations, a little more memory than
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needed is always allocated. This permits the file to grow without
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so many realloctions.
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You will probably want to use smaller value than the default on tiny
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TMFPS systems.
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config FS_TMPFS_FILE_FREEGUARD
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int "Directory under free"
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default 1024
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---help---
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In order to avoid frequent reallocations, a lot of free memory has
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to be available before a directory entry shrinks (via reallocation)
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little more memory than needed is always allocated. This permits
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the file to shrink without so many realloctions.
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endif
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