linux-toradex.git/fs/sync.c, branch v2.6.27.27

mm: do_sync_mapping_range integrity fix

2009-01-25T00:36:28+00:00

commit ee53a891f47444c53318b98dac947ede963db400 upstream.

Chris Mason notices do_sync_mapping_range didn't actually ask for data
integrity writeout.  Unfortunately, it is advertised as being usable for
data integrity operations.

This is a data integrity bug.

Signed-off-by: Nick Piggin 
Cc: Chris Mason 
Cc: Dave Chinner 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds 
Signed-off-by: Greg Kroah-Hartman

System call wrappers part 09

2009-01-18T18:35:35+00:00

commit a5f8fa9e9ba5ef3305e147f41ad6e1e84ac1f0bd upstream.

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

System call wrapper special cases

2009-01-18T18:35:34+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

SYNC_FILE_RANGE_WRITE may and will block. Document that.

2008-07-24T17:47:17+00:00

[akpm@linux-foundation.org: fix comment text]
Signed-off-by: Pavel Machek 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

vfs: fix unconditional write_super() call in file_fsync()

2008-04-29T15:06:06+00:00

We need to check ->s_dirt before calling write_super().  It became the cause
of an unneeded write.

This bug was noticed by Sudhanshu Saxena.

Signed-off-by: OGAWA Hirofumi 
Cc: Al Viro 
Cc: Christoph Hellwig 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Introduce fixed sys_sync_file_range2() syscall, implement on PowerPC and ARM

2007-06-28T18:38:30+00:00

Not all the world is an i386.  Many architectures need 64-bit arguments to be
aligned in suitable pairs of registers, and the original
sys_sync_file_range(int, loff_t, loff_t, int) was therefore wasting an
argument register for padding after the first integer.  Since we don't
normally have more than 6 arguments for system calls, that left no room for
the final argument on some architectures.

Fix this by introducing sys_sync_file_range2(int, int, loff_t, loff_t) which
all fits nicely.  In fact, ARM already had that, but called it
sys_arm_sync_file_range.  Move it to fs/sync.c and rename it, then implement
the needed compatibility routine.  And stop the missing syscall check from
bitching about the absence of sys_sync_file_range() if we've implemented
sys_sync_file_range2() instead.

Tested on PPC32 and with 32-bit and 64-bit userspace on PPC64.

Signed-off-by: David Woodhouse 
Acked-by: Russell King 
Cc: Arnd Bergmann 
Cc: Paul Mackerras 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Remove do_sync_file_range()

2007-05-08T18:15:04+00:00

Remove do_sync_file_range() and convert callers to just use
do_sync_mapping_range().

Signed-off-by: Mark Fasheh 
Cc: Christoph Hellwig 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] Turn do_sync_file_range() into do_sync_mapping_range()

2007-04-26T22:02:26+00:00

do_sync_file_range() accepts a file * from which it takes an address_space to
sync.  Abstract out the bulk of the function into do_sync_mapping_range()
which takes the address_space directly.  This way callers who want to sync an
address_space directly can take advantage of the functionality provided.

do_sync_file_range() is preserved as a small wrapper around
do_sync_mapping_range().

Ocfs2 in particular would like to use this to initiate a sync of a specific
inode range during truncate, where a file * may not be available.

Signed-off-by: Mark Fasheh 
Cc: Christoph Hellwig 
Signed-off-by: Andrew Morton

[PATCH] VFS: change struct file to use struct path

2006-12-08T16:28:41+00:00

This patch changes struct file to use struct path instead of having
independent pointers to struct dentry and struct vfsmount, and converts all
users of f_{dentry,vfsmnt} in fs/ to use f_path.{dentry,mnt}.

Additionally, it adds two #define's to make the transition easier for users of
the f_dentry and f_vfsmnt.

Signed-off-by: Josef "Jeff" Sipek 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] severing fs.h, radix-tree.h -> sched.h

2006-12-04T07:00:24+00:00

Signed-off-by: Al Viro