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/*
* Oracle Linux DTrace.
* Copyright (c) 2012, 2025, Oracle and/or its affiliates. All rights reserved.
* Licensed under the Universal Permissive License v 1.0 as shown at
* http://oss.oracle.com/licenses/upl.
*/
#pragma D depends_on module vmlinux
#pragma D depends_on provider sched
typedef char *caddr_t;
typedef struct bufinfo {
int b_flags; /* buffer status */
size_t b_bcount; /* number of bytes */
caddr_t b_addr; /* buffer address */
uint64_t b_lblkno; /* block # on device */
uint64_t b_blkno; /* expanded block # on device */
size_t b_resid; /* # of bytes not transferred */
size_t b_bufsize; /* size of allocated buffer */
caddr_t b_iodone; /* I/O completion routine */
int b_error; /* expanded error field */
dev_t b_edev; /* extended device */
} bufinfo_t;
inline int B_BUSY = 0x000001;
#pragma D binding "1.0" B_BUSY
inline int B_DONE = 0x000002;
#pragma D binding "1.0" B_DONE
inline int B_ERROR = 0x000004;
#pragma D binding "1.0" B_ERROR
inline int B_PAGEIO = 0x000010;
#pragma D binding "1.0" B_PAGEIO
inline int B_PHYS = 0x000020;
#pragma D binding "1.0" B_PHYS
inline int B_READ = 0x000040;
#pragma D binding "1.0" B_READ
inline int B_WRITE = 0x000100;
#pragma D binding "1.0" B_WRITE
inline int B_ASYNC = 0x000400;
#pragma D binding "1.0" B_ASYNC
#pragma D binding "1.0" translator
translator bufinfo_t < struct buffer_head *B > {
b_flags = (int)arg1 & 0x01 ? B_WRITE : B_READ;
b_addr = B->b_data;
b_bcount = B->b_size;
b_lblkno = B->b_blocknr;
b_blkno = B->b_blocknr;
b_resid = 0;
b_bufsize = B->b_size;
b_iodone = (caddr_t)B->b_end_io;
b_error = 0; /* b_state ?? */
b_edev = B->b_bdev->bd_dev;
};
/*
* From linux/blk_types.h.
*/
/* bit # in bi_flags */
inline int BIO_USER_MAPPED = 6;
/* bit mask in bi_rw */
inline int REQ_WRITE = 0x01;
define_for_kernel([[REQ_SYNC_VAL]], [[(m4_kver(4,10,0), [[0x800]])]], [[0x10]])
inline int REQ_SYNC = REQ_SYNC_VAL;
define_for_kernel([[__bi_rw]], [[(m4_kver(4,8,0), [[bi_opf]])]], [[bi_rw]])
define_for_kernel([[__disk]], [[(m4_kver(5,12,0), [[bi_bdev->bd_disk]]), (m4_kver(4,14,0), [[bi_disk]])]], [[bi_bdev->bd_disk]])
define_for_kernel([[__disk_chk]], [[(m4_kver(5,12,0), [[bi_bdev]]), (m4_kver(4,14,0), [[bi_disk]])]], [[bi_bdev]])
define_for_kernel([[__bio_partno]], [[(m4_kver(6,10,0), [[bi_bdev->__bd_flags.counter & BD_PARTNO]]), (m4_kver(5,12,0), [[bi_bdev->bd_partno]]), (m4_kver(4,14,0), [[bi_partno]])]], [[bi_bdev->bd_part->partno]])
define_for_kernel([[__bio_part_dev]], [[(m4_kver(5,12,0), [[bi_bdev->bd_dev]]), (m4_kver(5,11,0), [[bi_disk->part_tbl->part[B->bi_partno]->bd_dev]]), (m4_kver(4,14,0), [[bi_disk->part_tbl->part[B->bi_partno]->__dev.devt]])]], [[bi_bdev->bd_part->__dev.devt]])
#pragma D binding "1.6.3" translator
translator bufinfo_t < struct bio *B > {
b_flags = ((int)B->__bi_rw & REQ_WRITE ? B_WRITE : B_READ) |
((int)B->__bi_rw & REQ_SYNC ? 0 : B_ASYNC) |
((int)B->bi_flags & (1 << BIO_USER_MAPPED) ? B_PAGEIO : B_PHYS);
b_addr = 0;
b_bcount = B->bi_iter.bi_size;
b_lblkno = B->bi_iter.bi_sector;
b_blkno = B->bi_iter.bi_sector;
b_resid = 0;
b_bufsize = B->bi_iter.bi_size;
b_iodone = (caddr_t)B->bi_end_io;
b_error = 0;
b_edev = B->__disk_chk == NULL ? 0 : B->__bio_part_dev;
};
typedef struct devinfo {
int dev_major; /* major number */
int dev_minor; /* minor number */
int dev_instance; /* instance number */
string dev_name; /* name of device */
string dev_statname; /* name of device + instance/minor */
string dev_pathname; /* pathname of device */
} devinfo_t;
define_for_kernel([[__bh_bdev_dev]], [[(m4_kver(5,11,0), [[b_bdev->bd_disk->part0->bd_device]])]], [[b_bdev->bd_disk->part0.__dev]])
define_for_kernel([[__bdev_partno]], [[(m4_kver(6,10,0), [[__bd_flags.counter & BD_PARTNO]]), (m4_kver(5,11,0), [[bd_partno]])]], [[bd_part->partno]])
#pragma D binding "1.0" translator
translator devinfo_t < struct buffer_head *B > {
dev_major = getmajor(B->b_bdev->bd_dev);
dev_minor = getminor(B->b_bdev->bd_dev);
dev_instance = 0; /* not used? */
dev_name = B->__bh_bdev_dev.parent
? B->__bh_bdev_dev.parent->driver->name
? stringof(B->__bh_bdev_dev.parent->driver->name)
: "<none>"
: B->__bh_bdev_dev.driver->name
? stringof(B->__bh_bdev_dev.driver->name)
: "<none>";
dev_statname = (B->b_bdev->__bdev_partno) == 0
? stringof(B->b_bdev->bd_disk->disk_name)
: strjoin(stringof(B->b_bdev->bd_disk->disk_name),
lltostr(B->b_bdev->__bdev_partno));
dev_pathname = strjoin(
"/dev/",
B->b_bdev->__bdev_partno == 0
? stringof(B->b_bdev->bd_disk->disk_name)
: strjoin(stringof(B->b_bdev->bd_disk->disk_name),
lltostr(B->b_bdev->__bdev_partno))
);
};
#pragma D binding "1.6.3" translator
translator devinfo_t < struct bio *B > {
dev_major = B->__disk_chk == NULL ? 0 : getmajor(B->__bio_part_dev);
dev_minor = B->__disk_chk == NULL ? 0 : getminor(B->__bio_part_dev);
dev_instance = 0;
dev_name = B->__disk_chk == NULL
? "nfs"
: stringof(((struct blk_major_name **)vmlinux`major_names)[
getmajor(B->__bio_part_dev) % 255
]->name);
dev_statname = B->__disk_chk == NULL ? "nfs" :
(B->__bio_partno) == 0 ? stringof(B->__disk->disk_name) :
strjoin(stringof(B->__disk->disk_name), lltostr(B->__bio_partno));
dev_pathname = B->__disk_chk == NULL ? "<nfs>" : "<unknown>";
};
typedef struct fileinfo {
string fi_name; /* name (basename of fi_pathname) */
string fi_dirname; /* directory (dirname of fi_pathname) */
string fi_pathname; /* full pathname */
loff_t fi_offset; /* offset within file */
string fi_fs; /* filesystem */
string fi_mount; /* mount point of file system */
int fi_oflags; /* open(2) flags for file descriptor */
} fileinfo_t;
#pragma D binding "1.0" translator
translator fileinfo_t < struct buffer_head *B > {
fi_name = "<unknown>";
fi_dirname = "<unknown>";
fi_pathname = "<unknown>";
fi_offset = 0;
fi_fs = "<unknown>";
fi_mount = "<unknown>";
fi_oflags = 0;
};
def_constant([[O_ACCMODE]],1.1)
def_constant([[O_RDONLY]],1.1)
def_constant([[O_WRONLY]],1.1)
def_constant([[O_RDWR]],1.1)
def_constant([[O_CREAT]],1.1)
def_constant([[O_EXCL]],1.1)
def_constant([[O_NOCTTY]],1.1)
def_constant([[O_TRUNC]],1.1)
def_constant([[O_APPEND]],1.1)
def_constant([[O_NONBLOCK]],1.1)
def_constant([[O_NDELAY]],1.1)
def_constant([[O_SYNC]],1.1)
def_constant([[O_FSYNC]],1.1)
def_constant([[O_ASYNC]],1.1)
def_constant([[O_DIRECTORY]],1.1)
def_constant([[O_NOFOLLOW]],1.1)
def_constant([[O_CLOEXEC]],1.1)
def_constant([[O_DSYNC]],1.1)
def_constant([[O_RSYNC]],1.1)
#pragma D binding "1.1" translator
translator fileinfo_t < struct file *F > {
fi_name = F == NULL
? "<none>"
: stringof(F->f_path.dentry->d_name.name);
fi_dirname = F == NULL
? "<none>"
: dirname(d_path(&(F->f_path)));
fi_pathname = F == NULL
? "<none>"
: d_path(&(F->f_path));
fi_offset = F == NULL
? 0
: F->f_pos;
fi_fs = F == NULL
? "<none>"
: stringof(F->f_path.mnt->mnt_sb->s_type->name);
fi_mount = F == NULL
? "<none>"
: "<unknown>";
fi_oflags = F == NULL
? 0
: F->f_flags;
};
inline fileinfo_t fds[int fd] = xlate <fileinfo_t> (
fd >= 0 && fd < curthread->files->fdt->max_fds
? curthread->files->fdt->fd[fd]
: NULL
);
#pragma D attributes Stable/Stable/Common fds
#pragma D binding "1.1" fds
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