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[/] [or1k/] [trunk/] [rc203soc/] [sw/] [uClinux/] [fs/] [umsdos/] [file.c] - Blame information for rev 1765

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/*
 *  linux/fs/umsdos/file.c
 *
 *  Written 1993 by Jacques Gelinas
 *      inspired from linux/fs/msdos/file.c Werner Almesberger
 *
 *  Extended MS-DOS regular file handling primitives
 */
 
#include <linux/sched.h>
#include <linux/fs.h>
#include <linux/msdos_fs.h>
#include <linux/errno.h>
#include <linux/fcntl.h>
#include <linux/stat.h>
#include <linux/msdos_fs.h>
#include <linux/umsdos_fs.h>
 
#include <asm/segment.h>
#include <asm/system.h>
 
#define PRINTK(x)
#define Printk(x)       printk x
/*
        Read a file into user space memory
*/
static int UMSDOS_file_read(
        struct inode *inode,
        struct file *filp,
        char *buf,
    int count)
{
        /* We have to set the access time because msdos don't care */
        int ret = fat_file_read(inode,filp,buf,count);
        if (!IS_RDONLY(inode)){
                inode->i_atime = CURRENT_TIME;
                inode->i_dirt = 1;
        }
        return ret;
}
/*
        Write a file from user space memory
*/
static int UMSDOS_file_write(
        struct inode *inode,
        struct file *filp,
        const char *buf,
    int count)
{
        return fat_file_write(inode,filp,buf,count);
}
/*
        Truncate a file to 0 length.
*/
static void UMSDOS_truncate(struct inode *inode)
{
        PRINTK (("UMSDOS_truncate\n"));
        fat_truncate (inode);
        inode->i_ctime = inode->i_mtime = CURRENT_TIME;
        inode->i_dirt = 1;
}
 
/* Function for normal file system (512 bytes hardware sector size) */
struct file_operations umsdos_file_operations = {
        NULL,                           /* lseek - default */
        UMSDOS_file_read,       /* read */
        UMSDOS_file_write,      /* write */
        NULL,                           /* readdir - bad */
        NULL,                           /* select - default */
        NULL,                           /* ioctl - default */
        generic_file_mmap,              /* mmap */
        NULL,                           /* no special open is needed */
        NULL,                           /* release */
        file_fsync                      /* fsync */
};
 
struct inode_operations umsdos_file_inode_operations = {
        &umsdos_file_operations,        /* default file operations */
        NULL,                   /* create */
        NULL,                   /* lookup */
        NULL,                   /* link */
        NULL,                   /* unlink */
        NULL,                   /* symlink */
        NULL,                   /* mkdir */
        NULL,                   /* rmdir */
        NULL,                   /* mknod */
        NULL,                   /* rename */
        NULL,                   /* readlink */
        NULL,                   /* follow_link */
        generic_readpage,       /* readpage */
        NULL,                   /* writepage */
        fat_bmap,               /* bmap */
        UMSDOS_truncate,/* truncate */
        NULL,                   /* permission */
        fat_smap                /* smap */
};
/* For other with larger and unaligned file system */
struct file_operations umsdos_file_operations_no_bmap = {
        NULL,                           /* lseek - default */
        UMSDOS_file_read,       /* read */
        UMSDOS_file_write,      /* write */
        NULL,                           /* readdir - bad */
        NULL,                           /* select - default */
        NULL,                           /* ioctl - default */
        fat_mmap,                       /* mmap */
        NULL,                           /* no special open is needed */
        NULL,                           /* release */
        file_fsync                      /* fsync */
};
 
struct inode_operations umsdos_file_inode_operations_no_bmap = {
        &umsdos_file_operations_no_bmap,        /* default file operations */
        NULL,                   /* create */
        NULL,                   /* lookup */
        NULL,                   /* link */
        NULL,                   /* unlink */
        NULL,                   /* symlink */
        NULL,                   /* mkdir */
        NULL,                   /* rmdir */
        NULL,                   /* mknod */
        NULL,                   /* rename */
        NULL,                   /* readlink */
        NULL,                   /* follow_link */
        NULL,                   /* readpage */
        NULL,                   /* writepage */
        NULL,                   /* bmap */
        UMSDOS_truncate,/* truncate */
        NULL,                   /* permission */
        NULL,                   /* smap */
};
 

Line No.	Rev	Author	Line
1	1628	jcastillo	`/*`
2			`* linux/fs/umsdos/file.c`
3			`*`
4			`* Written 1993 by Jacques Gelinas`
5			`* inspired from linux/fs/msdos/file.c Werner Almesberger`
6			`*`
7			`* Extended MS-DOS regular file handling primitives`
8			`*/`
9
10			`#include <linux/sched.h>`
11			`#include <linux/fs.h>`
12			`#include <linux/msdos_fs.h>`
13			`#include <linux/errno.h>`
14			`#include <linux/fcntl.h>`
15			`#include <linux/stat.h>`
16			`#include <linux/msdos_fs.h>`
17			`#include <linux/umsdos_fs.h>`
18
19			`#include <asm/segment.h>`
20			`#include <asm/system.h>`
21
22			`#define PRINTK(x)`
23			`#define Printk(x) printk x`
24			`/*`
25			`Read a file into user space memory`
26			`*/`
27			`static int UMSDOS_file_read(`
28			`struct inode *inode,`
29			`struct file *filp,`
30			`char *buf,`
31			`int count)`
32			`{`
33			`/* We have to set the access time because msdos don't care */`
34			`int ret = fat_file_read(inode,filp,buf,count);`
35			`if (!IS_RDONLY(inode)){`
36			`inode->i_atime = CURRENT_TIME;`
37			`inode->i_dirt = 1;`
38			`}`
39			`return ret;`
40			`}`
41			`/*`
42			`Write a file from user space memory`
43			`*/`
44			`static int UMSDOS_file_write(`
45			`struct inode *inode,`
46			`struct file *filp,`
47			`const char *buf,`
48			`int count)`
49			`{`
50			`return fat_file_write(inode,filp,buf,count);`
51			`}`
52			`/*`
53			`Truncate a file to 0 length.`
54			`*/`
55			`static void UMSDOS_truncate(struct inode *inode)`
56			`{`
57			`PRINTK (("UMSDOS_truncate\n"));`
58			`fat_truncate (inode);`
59			`inode->i_ctime = inode->i_mtime = CURRENT_TIME;`
60			`inode->i_dirt = 1;`
61			`}`
62
63			`/* Function for normal file system (512 bytes hardware sector size) */`
64			`struct file_operations umsdos_file_operations = {`
65			`NULL, /* lseek - default */`
66			`UMSDOS_file_read, /* read */`
67			`UMSDOS_file_write, /* write */`
68			`NULL, /* readdir - bad */`
69			`NULL, /* select - default */`
70			`NULL, /* ioctl - default */`
71			`generic_file_mmap, /* mmap */`
72			`NULL, /* no special open is needed */`
73			`NULL, /* release */`
74			`file_fsync /* fsync */`
75			`};`
76
77			`struct inode_operations umsdos_file_inode_operations = {`
78			`&umsdos_file_operations, /* default file operations */`
79			`NULL, /* create */`
80			`NULL, /* lookup */`
81			`NULL, /* link */`
82			`NULL, /* unlink */`
83			`NULL, /* symlink */`
84			`NULL, /* mkdir */`
85			`NULL, /* rmdir */`
86			`NULL, /* mknod */`
87			`NULL, /* rename */`
88			`NULL, /* readlink */`
89			`NULL, /* follow_link */`
90			`generic_readpage, /* readpage */`
91			`NULL, /* writepage */`
92			`fat_bmap, /* bmap */`
93			`UMSDOS_truncate,/* truncate */`
94			`NULL, /* permission */`
95			`fat_smap /* smap */`
96			`};`
97			`/* For other with larger and unaligned file system */`
98			`struct file_operations umsdos_file_operations_no_bmap = {`
99			`NULL, /* lseek - default */`
100			`UMSDOS_file_read, /* read */`
101			`UMSDOS_file_write, /* write */`
102			`NULL, /* readdir - bad */`
103			`NULL, /* select - default */`
104			`NULL, /* ioctl - default */`
105			`fat_mmap, /* mmap */`
106			`NULL, /* no special open is needed */`
107			`NULL, /* release */`
108			`file_fsync /* fsync */`
109			`};`
110
111			`struct inode_operations umsdos_file_inode_operations_no_bmap = {`
112			`&umsdos_file_operations_no_bmap, /* default file operations */`
113			`NULL, /* create */`
114			`NULL, /* lookup */`
115			`NULL, /* link */`
116			`NULL, /* unlink */`
117			`NULL, /* symlink */`
118			`NULL, /* mkdir */`
119			`NULL, /* rmdir */`
120			`NULL, /* mknod */`
121			`NULL, /* rename */`
122			`NULL, /* readlink */`
123			`NULL, /* follow_link */`
124			`NULL, /* readpage */`
125			`NULL, /* writepage */`
126			`NULL, /* bmap */`
127			`UMSDOS_truncate,/* truncate */`
128			`NULL, /* permission */`
129			`NULL, /* smap */`
130			`};`
131

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[/] [or1k/] [trunk/] [rc203soc/] [sw/] [uClinux/] [fs/] [umsdos/] [file.c] - Blame information for rev 1765