Revision e09e200e07222467ef82367bff7cc6f44ad00397 authored by Andy Shevchenko on 30 September 2020, 14:20:12 UTC, committed by Linus Walleij on 01 October 2020, 08:00:17 UTC
In IRQ handler we have to clear bitmap before use. Currently the GCC extension has been used for that. For sake of the consistency switch to bitmap API. As expected bloat-o-meter shows no difference in the object size. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Link: https://lore.kernel.org/r/20200930142013.59247-1-andriy.shevchenko@linux.intel.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
1 parent 17479aa
fs_types.c
// SPDX-License-Identifier: GPL-2.0
#include <linux/fs.h>
#include <linux/export.h>
/*
* fs on-disk file type to dirent file type conversion
*/
static const unsigned char fs_dtype_by_ftype[FT_MAX] = {
[FT_UNKNOWN] = DT_UNKNOWN,
[FT_REG_FILE] = DT_REG,
[FT_DIR] = DT_DIR,
[FT_CHRDEV] = DT_CHR,
[FT_BLKDEV] = DT_BLK,
[FT_FIFO] = DT_FIFO,
[FT_SOCK] = DT_SOCK,
[FT_SYMLINK] = DT_LNK
};
/**
* fs_ftype_to_dtype() - fs on-disk file type to dirent type.
* @filetype: The on-disk file type to convert.
*
* This function converts the on-disk file type value (FT_*) to the directory
* entry type (DT_*).
*
* Context: Any context.
* Return:
* * DT_UNKNOWN - Unknown type
* * DT_FIFO - FIFO
* * DT_CHR - Character device
* * DT_DIR - Directory
* * DT_BLK - Block device
* * DT_REG - Regular file
* * DT_LNK - Symbolic link
* * DT_SOCK - Local-domain socket
*/
unsigned char fs_ftype_to_dtype(unsigned int filetype)
{
if (filetype >= FT_MAX)
return DT_UNKNOWN;
return fs_dtype_by_ftype[filetype];
}
EXPORT_SYMBOL_GPL(fs_ftype_to_dtype);
/*
* dirent file type to fs on-disk file type conversion
* Values not initialized explicitly are FT_UNKNOWN (0).
*/
static const unsigned char fs_ftype_by_dtype[DT_MAX] = {
[DT_REG] = FT_REG_FILE,
[DT_DIR] = FT_DIR,
[DT_LNK] = FT_SYMLINK,
[DT_CHR] = FT_CHRDEV,
[DT_BLK] = FT_BLKDEV,
[DT_FIFO] = FT_FIFO,
[DT_SOCK] = FT_SOCK,
};
/**
* fs_umode_to_ftype() - file mode to on-disk file type.
* @mode: The file mode to convert.
*
* This function converts the file mode value to the on-disk file type (FT_*).
*
* Context: Any context.
* Return:
* * FT_UNKNOWN - Unknown type
* * FT_REG_FILE - Regular file
* * FT_DIR - Directory
* * FT_CHRDEV - Character device
* * FT_BLKDEV - Block device
* * FT_FIFO - FIFO
* * FT_SOCK - Local-domain socket
* * FT_SYMLINK - Symbolic link
*/
unsigned char fs_umode_to_ftype(umode_t mode)
{
return fs_ftype_by_dtype[S_DT(mode)];
}
EXPORT_SYMBOL_GPL(fs_umode_to_ftype);
/**
* fs_umode_to_dtype() - file mode to dirent file type.
* @mode: The file mode to convert.
*
* This function converts the file mode value to the directory
* entry type (DT_*).
*
* Context: Any context.
* Return:
* * DT_UNKNOWN - Unknown type
* * DT_FIFO - FIFO
* * DT_CHR - Character device
* * DT_DIR - Directory
* * DT_BLK - Block device
* * DT_REG - Regular file
* * DT_LNK - Symbolic link
* * DT_SOCK - Local-domain socket
*/
unsigned char fs_umode_to_dtype(umode_t mode)
{
return fs_ftype_to_dtype(fs_umode_to_ftype(mode));
}
EXPORT_SYMBOL_GPL(fs_umode_to_dtype);
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