UNIX Filesystems Evolution Design and Implementation PHẦN 3 potx
UNIX Filesystems Evolution Design and Implementation PHẦN 3 potx
... 0666) = 4
read (3, "678901 234 5678901 234 5678901 234 567" , 4096) = 4096
write(4, "01 234 5678901 234 5678901 234 5678901" , 4096) = 4096
read (3, "1 234 5678901 234 5678901 234 56789012" ... O_RDONLY) = 3
open("outfile", O_WRONLY|O_CREAT|O_TRUNC, 0666) = 4
time([9940 936 88]) = 9940 936 88
read (3, "01 234 5678901 234 5678901 234 5678901"...
unix filesystems evolution design and implementation phần 3 pptx
...
98 UNIX Filesystems Evolution, Design, and Implementation
Mount and Umount System Call Handling
As the preceding examples showed, the mount and umount commands result in
a call to the mount() and ... 0666) = 4
read (3, "678901 234 5678901 234 5678901 234 567" , 4096) = 4096
write(4, "01 234 5678901 234 5678901 234 5678901" , 4096) = 4096
read (3, "1 234...
UNIX Filesystems Evolution Design and Implementation PHẦN 6 potx
... 2002
atime: 0x3c6b3af8 -Wed Feb 13 20:20:08 2002
mtime: 0x3c6b3af8 -Wed Feb 13 20:20:08 2002
BLOCKS:
(0-2):41- 43
TOTAL: 3
214 UNIX Filesystems Evolution, Design, and Implementation
group was placed ...
®
224 UNIX Filesystems Evolution, Design, and Implementation
/dev/vx/dsk/fs1 959 83 64049 2 233 6 75% /mnt
/dev/vx/dsk/snap1 10240 10240 0 100% /snap-space
/dev/fssnap...
UNIX Filesystems Evolution Design and Implementation PHẦN 7 potx
... /dev/mem, namelist = /dev/ksyms, outfile = stdout
> p ! grep dopen
33 6 s 37 19 37 13 3719 37 13 0 46 dopen load
36 3 s 37 15 37 13 3715 37 13 0 46 dopen load
Starting with the process that is accessing ... user 33 6
OPEN FILES, POFILE FLAGS, AND THREAD REFCNT:
[0]: F 30 0106fc690, 0, 0 [1]: F 30 0106fc690, 0, 0
[2]: F 30 0106fc690, 0, 0 [3] : F 30 0106fca10, 0, 0...
UNIX Filesystems Evolution Design and Implementation PHẦN 1 docx
... library routines
10 03. 2 The shell and UNIX utilities
10 03. 3 Test methods and conformance
10 03. 4 Real-time interfaces
14 UNIX Filesystems Evolution, Design, and Implementation
UNIX International ... and Net/2 and porting it to
large array of other platforms and architectures.
Steve D. Pate
UNIX
®
Filesystems:
Evolution, Design,
and Implementation
(VERITAS S...
UNIX Filesystems Evolution Design and Implementation PHẦN 2 ppt
... parsing the command line to determine the input and output
files, the starting position to read, the block size for reading, and so on. The
34 UNIX Filesystems Evolution, Design, and Implementation
$ ... &st);
31 ftime = ctime(&st.st_mtime);
32 ftime[16] = '\0'; ftime += 4;
33 pw = getpwuid(st.st_uid);
34 grp = getgrgid(st.st_gid);
35 perms(st.st_mode);
36...
UNIX Filesystems Evolution Design and Implementation PHẦN 4 pdf
... segvn_ops 0x30000bfb260
0xff360000 1 638 4 segvn_ops 0x30000bfac88
0xff372000 1 638 4 segvn_ops 0x30000bface0
0xff380000 1 638 4 segvn_ops 0x30001af3f48
0xff3a0000 8192 segvn_ops 0x30000b677d8
0xff3b0000 ... stdout
> p ! grep vnode
35 s 436 5 434 3 436 5 434 3 0 46 vnode load
> u 35
PER PROCESS USER AREA FOR PROCESS 35
PROCESS MISC:
command: vnode, psargs: ./vnode
start: Fri Aug 24...
UNIX Filesystems Evolution Design and Implementation PHẦN 5 pptx
... 2
00000940: id 36 3 func 5 ser 1 lser 3 len 40
free inode map changes fset 999 ilist 0 aun 0
map dev/bno 0 /38 ausum dev/bno 0 /37
op alloc ino 32 6
Sub function 3
00000980: id 36 3 func 1 ser 2 lser 3 len ... direct I/O, unbuffered I/O, and data
synchronous I/O are described in the section Data and Attribute Caching in
Chapter 3.
188 UNIX Filesystems Evolution, Design,...
UNIX Filesystems Evolution Design and Implementation PHẦN 8 pptx
... providing all of the
features of the standard volume manager, has a number of goals:
34 6 UNIX Filesystems Evolution, Design, and Implementation
Mounting and Unmounting the Filesystem
The ux_read_super() ... FLY
®
33 6 UNIX Filesystems Evolution, Design, and Implementation
patching file Documentation/kdb/kdb_bp.man
patching file Documentation/kdb/slides
# patch -p2 <...
UNIX Filesystems Evolution Design and Implementation PHẦN 9 pot
... "foo",
flags =32 833 ,
mode =33 188) at open.c:644
#4 0xc013d0d0 in sys_open (filename=0x8054788 "foo",
flags =32 833 , mode =33 188)
at open.c:788
#5 0xc010 730 b in system_call ()
Note ... ux_readir()
39 6 UNIX Filesystems Evolution, Design, and Implementation
928
929 int
930 ux_get_block(struct inode *inode, long block,
931 struct buffer_head *bh_resu...
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