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kcmp(2): implement for devfs files

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(cherry picked from commit 5c41d888de1aba0e82531fb6df4cc3b6989d37bd)
This commit is contained in:
Konstantin Belousov 2024-01-19 23:36:50 +02:00
parent 098500b79e
commit 7dff3d1cdf
1 changed files with 9 additions and 0 deletions
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9
sys/fs/devfs/devfs_vnops.c
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@ -2012,6 +2012,14 @@ dev2udev(struct cdev *x)
return (cdev2priv(x)->cdp_inode);
}
static int
devfs_cmp_f(struct file *fp1, struct file *fp2, struct thread *td)
{
if (fp2->f_type != DTYPE_VNODE || fp2->f_ops != &devfs_ops_f)
return (3);
return (kcmp_cmp((uintptr_t)fp1->f_data, (uintptr_t)fp2->f_data));
}
static struct fileops devfs_ops_f = {
.fo_read = devfs_read_f,
.fo_write = devfs_write_f,
@ -2027,6 +2035,7 @@ static struct fileops devfs_ops_f = {
.fo_seek = vn_seek,
.fo_fill_kinfo = vn_fill_kinfo,
.fo_mmap = devfs_mmap_f,
.fo_cmp = devfs_cmp_f,
.fo_flags = DFLAG_PASSABLE | DFLAG_SEEKABLE
};