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https://github.com/joel16/android_kernel_sony_msm8994.git
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6d703a81ad
->read_proc, ->write_proc are going away, ->proc_fops should be used instead. The only tricky place is IDENTIFY handling: if for some reason taskfile_lib_get_identify() fails, buffer _is_ changed and at least first byte is overwritten. Emulate old behaviour with returning that first byte to userspace and reporting length=1 despite overall -E. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
#include <linux/kernel.h>
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#include <linux/ide.h>
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#include <linux/seq_file.h>
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#include "ide-floppy.h"
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static int idefloppy_capacity_proc_show(struct seq_file *m, void *v)
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{
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ide_drive_t*drive = (ide_drive_t *)m->private;
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seq_printf(m, "%llu\n", (long long)ide_gd_capacity(drive));
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return 0;
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}
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static int idefloppy_capacity_proc_open(struct inode *inode, struct file *file)
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{
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return single_open(file, idefloppy_capacity_proc_show, PDE(inode)->data);
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}
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static const struct file_operations idefloppy_capacity_proc_fops = {
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.owner = THIS_MODULE,
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.open = idefloppy_capacity_proc_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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ide_proc_entry_t ide_floppy_proc[] = {
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{ "capacity", S_IFREG|S_IRUGO, &idefloppy_capacity_proc_fops },
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{ "geometry", S_IFREG|S_IRUGO, &ide_geometry_proc_fops },
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{}
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};
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ide_devset_rw_field(bios_cyl, bios_cyl);
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ide_devset_rw_field(bios_head, bios_head);
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ide_devset_rw_field(bios_sect, bios_sect);
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ide_devset_rw_field(ticks, pc_delay);
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const struct ide_proc_devset ide_floppy_settings[] = {
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IDE_PROC_DEVSET(bios_cyl, 0, 1023),
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IDE_PROC_DEVSET(bios_head, 0, 255),
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IDE_PROC_DEVSET(bios_sect, 0, 63),
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IDE_PROC_DEVSET(ticks, 0, 255),
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{ NULL },
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};
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