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drivers/ramdisk.c and include/nuttx/fs/ramdisk.h: Add logic to dispose of the drvier and RAM buffer when the RAM disk has been unlinked and all open references to the RAM disk have been closed. Add new parameters to romdisk() to specify what should be done with the RAM/ROM buffer -- Should it be freed or not? Changed all calls to ramdisk() to use these new parameters.

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This commit is contained in:
Gregory Nutt 2015-02-01 07:24:16 -06:00
parent f5558cd10e
commit 0724e7ccf3
2 changed files with 4 additions and 3 deletions
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4
examples/mount/ramdisk.c
View File

@ -1,7 +1,7 @@
/****************************************************************************
* examples/mount/ramdisk.c
*
* Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
* Copyright (C) 2008-2009, 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
@ -116,7 +116,7 @@ int create_ramdisk(void)
(FAR uint8_t *)pbuffer,
CONFIG_EXAMPLES_MOUNT_NSECTORS,
CONFIG_EXAMPLES_MOUNT_SECTORSIZE,
true);
RDFLAG_WRENABLED | RDFLAG_FUNLINK);
if (ret < 0)
{
printf("create_ramdisk: Failed to register ramdisk at %s: %d\n",

3
nshlib/nsh_fscmds.c
View File

@ -1250,7 +1250,8 @@ int cmd_mkrd(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
/* Then register the ramdisk */
ret = ramdisk_register(minor, buffer, nsectors, sectsize, true);
ret = ramdisk_register(minor, buffer, nsectors, sectsize,
RDFLAG_WRENABLED | RDFLAG_FUNLINK);
if (ret < 0)
{
nsh_output(vtbl, g_fmtcmdfailed, argv[0], "ramdisk_register", NSH_ERRNO_OF(-ret));