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Re: [PATCH v2 04/10] vfs: define getname_info struct and have getname() return it



Em Thu, Sep 20, 2012 at 10:23:13AM -0400, Jeff Layton escreveu:
> getname() is intended to copy pathname strings from userspace into a
> kernel buffer. The result is just a string in kernel space. It would
> however be quite helpful to be able to attach some ancillary info to
> the string.

Tried with:

[acme mica linux]$ git remote add viro git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal.git
[acme mica linux]$ git checkout -b getname-signal-git viro/experimental-kernel_thread

[acme mica linux]$ grep Subject /wb/getname/4.patch 
Subject: [PATCH v2 04/10] vfs: define getname_info struct and have getname()
[acme mica linux]$

[acme mica linux]$ grep Subject /wb/getname/[1-3].patch 
/wb/getname/1.patch:Subject: [PATCH v2 01/10] vfs: allocate page instead of names_cache buffer in
/wb/getname/2.patch:Subject: [PATCH v2 02/10] vfs: make dir_name arg to do_mount a const char *
/wb/getname/3.patch:Subject: [PATCH v2 03/10] acct: constify the name arg to acct_on
[acme mica linux]$ git log --oneline | head -3
9e7ab47 acct: constify the name arg to acct_on
2c1cd21 vfs: make dir_name arg to do_mount a const char *
99080c0 vfs: allocate page instead of names_cache buffer in mount_block_root
[acme mica linux]$ 

git am works for the first 3, then fails for the fourth, using patch I get:

[acme mica linux]$ patch -p1 < /wb/getname/4.patch 
<SNIP successfull part>
patching file fs/namei.c
Hunk #3 succeeded at 2124 (offset 4 lines).
Hunk #4 succeeded at 2144 (offset 4 lines).
Hunk #5 succeeded at 3070 (offset 4 lines).
Hunk #6 succeeded at 3279 (offset 4 lines).
Hunk #7 succeeded at 3374 (offset 4 lines).
Hunk #8 succeeded at 3465 (offset 4 lines).
Hunk #9 succeeded at 3478 (offset 4 lines).
Hunk #10 succeeded at 3760 (offset 4 lines).
Hunk #11 succeeded at 3998 (offset 4 lines).
patching file fs/namespace.c
patching file fs/open.c
patching file fs/quota/quota.c
patching file include/linux/audit.h
Hunk #1 succeeded at 451 with fuzz 2 (offset -8 lines).
Hunk #2 FAILED at 469.
Hunk #3 succeeded at 495 (offset -10 lines).
1 out of 3 hunks FAILED -- saving rejects to file include/linux/audit.h.rej
patching file include/linux/fs.h
patching file ipc/mqueue.c
Hunk #3 FAILED at 805.
Hunk #4 FAILED at 825.
2 out of 6 hunks FAILED -- saving rejects to file ipc/mqueue.c.rej
patching file kernel/acct.c
patching file kernel/auditsc.c
Hunk #1 FAILED at 103.
Hunk #2 succeeded at 1006 (offset 2 lines).
Hunk #3 succeeded at 1019 (offset 2 lines).
Hunk #4 succeeded at 1531 (offset 2 lines).
Hunk #5 succeeded at 1546 (offset 2 lines).
Hunk #7 FAILED at 2048.
Hunk #11 FAILED at 2166.
Hunk #12 FAILED at 2189.
Hunk #13 FAILED at 2230.
Hunk #14 FAILED at 2243.
Hunk #15 FAILED at 2277.
7 out of 15 hunks FAILED -- saving rejects to file kernel/auditsc.c.rej
patching file mm/swapfile.c
[acme mica linux]$ 


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