linux-toradex.git/fs/read_write.c, branch v2.6.28.9

System call wrappers part 20

2009-01-18T18:43:57+00:00

commit 3cdad42884bbd95d5aa01297e8236ea1bad70053 upstream.

Signed-off-by: Heiko Carstens 
Signed-off-by: Greg Kroah-Hartman

System call wrappers part 19

2009-01-18T18:43:57+00:00

commit 003d7ab479168132a2b2c6700fe682b08f08ab0c upstream.

Signed-off-by: Heiko Carstens 
Signed-off-by: Greg Kroah-Hartman

System call wrappers part 16

2009-01-18T18:43:56+00:00

commit 002c8976ee537724b20a5e179d9b349309438836 upstream.

Signed-off-by: Heiko Carstens 
Signed-off-by: Greg Kroah-Hartman

System call wrapper special cases

2009-01-18T18:43:52+00:00

commit 6673e0c3fbeaed2cd08e2fd4a4aa97382d6fedb0 upstream.

System calls with an unsigned long long argument can't be converted with
the standard wrappers since that would include a cast to long, which in
turn means that we would lose the upper 32 bit on 32 bit architectures.
Also semctl can't use the standard wrapper since it has a 'union'
parameter.

So we handle them as special case and add some extra wrappers instead.

Signed-off-by: Heiko Carstens 
Signed-off-by: Greg Kroah-Hartman

Convert all system calls to return a long

2009-01-18T18:43:50+00:00

commit 2ed7c03ec17779afb4fcfa3b8c61df61bd4879ba upstream.

Convert all system calls to return a long. This should be a NOP since all
converted types should have the same size anyway.
With the exception of sys_exit_group which returned void. But that doesn't
matter since the system call doesn't return.

Signed-off-by: Heiko Carstens 
Signed-off-by: Greg Kroah-Hartman

[PATCH] generic_file_llseek tidyups

2008-10-23T09:12:59+00:00

Add kerneldoc for generic_file_llseek and generic_file_llseek_unlocked,
use sane variable names and unclutter the code.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Al Viro

Remove BKL from remote_llseek v2

2008-07-02T21:06:27+00:00

- Replace remote_llseek with generic_file_llseek_unlocked (to force compilation
failures in all users)
- Change all users to either use generic_file_llseek_unlocked directly or
take the BKL around. I changed the file systems who don't use the BKL
for anything (CIFS, GFS) to call it directly. NCPFS and SMBFS and NFS
take the BKL, but explicitely in their own source now.

I moved them all over in a single patch to avoid unbisectable sections.

Open problem: 32bit kernels can corrupt fpos because its modification
is not atomic, but they can do that anyways because there's other paths who
modify it without BKL.

Do we need a special lock for the pos/f_version = 0 checks?

Trond says the NFS BKL is likely not needed, but keep it for now
until his full audit.

v2: Use generic_file_llseek_unlocked instead of remote_llseek_unlocked
    and factor duplicated code (suggested by hch)

Cc: Trond.Myklebust@netapp.com
Cc: swhiteho@redhat.com
Cc: sfrench@samba.org
Cc: vandrove@vc.cvut.cz

Signed-off-by: Andi Kleen 
Signed-off-by: Andi Kleen 
Signed-off-by: Jonathan Corbet

fs: use loff_t type instead of long long

2008-04-22T22:17:11+00:00

Use offset type consistently.

Signed-off-by: David Sterba 
Signed-off-by: Linus Torvalds

remove the unused exports of sys_open/sys_read

2008-02-08T17:22:36+00:00

These exports (which aren't used and which are in fact dangerous to use
because they pretty much form a security hole to use) have been marked
_UNUSED since 2.6.24 with removal in 2.6.25.  This patch is their final
departure from the Linux kernel tree.

Signed-off-by: Arjan van de Ven 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

ext4: export iov_shorten from kernel for ext4's use

2008-01-29T04:58:27+00:00

Export iov_shorten() from kernel so that ext4 can
truncate too-large writes to bitmapped files.

Signed-off-by: Eric Sandeen