linux-toradex.git/include/linux/msdos_fs.h, branch v2.6.36-rc5

fat: Fix stat->f_namelen

2010-02-10T14:49:08+00:00

I found that the length of a file name when created cannot exceed 255
characters, yet, pathconf(), via statfs(), returns the maximum as 260.

Signed-off-by: Kevin Dankwardt 
Signed-off-by: OGAWA Hirofumi

headers_check fix: linux/msdos_fs.h

2009-01-30T18:31:11+00:00

fix the following 'make headers_check' warning:

  usr/include/linux/msdos_fs.h:100: found __[us]{8,16,32,64} type without #include 

Signed-off-by: Jaswinder Singh Rajput

fat: Cleanup FAT attribute stuff

2008-11-06T23:41:21+00:00

This adds three helpers:

fat_make_attrs() - makes FAT attributes from inode.
fat_make_mode()  - makes mode_t from FAT attributes.
fat_save_attrs() - saves FAT attributes to inode.

Then this replaces: MSDOS_MKMODE() by fat_make_mode(), fat_attr() by
fat_make_attrs(), ->i_attrs = attr & ATTR_UNUSED by fat_save_attrs().
And for root inode, those is used with ATTR_DIR instead of bogus
ATTR_NONE.

Signed-off-by: OGAWA Hirofumi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fat: split include/msdos_fs.h

2008-11-06T23:41:20+00:00

This splits __KERNEL__ stuff in include/msdos_fs.h into fs/fat/fat.h.

Signed-off-by: OGAWA Hirofumi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fatfs: add UTC timestamp option

2008-07-25T17:53:34+00:00

Provide a new mount option ("tz=UTC") for DOS (vfat/msdos) filesystems,
allowing timestamps to be in coordinated universal time (UTC) rather than
local time in applications where doing this is advantageous.

In particular, portable devices that use fat/vfat (such as digital
cameras) can benefit from using UTC in their internal clocks, thus
avoiding daylight saving time errors and general time ambiguity issues.
The user of the device does not have to worry about changing the time when
moving from place or when daylight saving changes.

The new mount option, when set, disables the counter-adjustment that Linux
currently makes to FAT timestamp info in anticipation of the normal
userspace time zone correction.  When used in this new mode, all daylight
saving time and time zone handling is done in userspace as is normal for
many other filesystems (like ext3).  The default mode, which remains
unchanged, is still appropriate when mounting volumes written in Windows
(because of its use of local time).

I originally based this patch on one submitted last year by Paul Collins,
but I updated it to work with current source and changed variable/option
naming.  Ogawa Hirofumi (who maintains these filesystems) and I discussed
this patch at length on lkml, and he suggested using the option name in
the attached version of the patch.  Barry Bouwsma pointed out a good
addition to the patch as well.

Signed-off-by: Joe Peterson 
Signed-off-by: Paul Collins 
Acked-by: OGAWA Hirofumi 
Cc: Barry Bouwsma 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

msdos fs: remove unsettable atari option

2008-07-25T17:53:34+00:00

It has been impossible to set the option 'atari' of the MSDOS filesystem
for several years.  Since nobody seems to have missed it, let's remove its
remains.

Signed-off-by: Rene Scharfe 
Acked-by: OGAWA Hirofumi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fat: fix VFAT_IOCTL_READDIR_xxx and cleanup for userland

2008-07-25T17:53:34+00:00

"struct dirent" is a kernel type here, but is a **different type** in
userspace!  This means both the structure and the IOCTL number is wrong!

So, this adds new "struct __fat_dirent" to generate correct IOCTL number.
And kernel stuff moves to under __KERNEL__.

Signed-off-by: OGAWA Hirofumi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fat_valid_media() isn't for userspace

2008-06-08T18:58:43+00:00

Commit 73f20e58b1d586e9f6d3ddc3aad872829aca7743 ("FAT_VALID_MEDIA():
remove pointless test") wrongly added the new fat_valid_media() function
to the userspace-visible part of include/linux/msdos_fs.h

Move it to the part of include/linux/msdos_fs.h that is not exported to
userspace.

Reported-by: Onur Küçük 
Reported-by: S.Çağlar Onur 
Signed-off-by: Adrian Bunk 
Acked-by: OGAWA Hirofumi 
Signed-off-by: Linus Torvalds

FAT_VALID_MEDIA(): remove pointless test

2008-04-28T15:58:47+00:00

The on-disk media specification field in FAT is only 8-bits, so testing for
<=0xff is pointless, and can generate a "comparison is always true due to
limited range of data type" warning.

While we're there, convert FAT_VALID_MEDIA() into a C function - the present
implementation is buggy: it generates either one or two references to its
argument.

Cc: Frank Seidel 
Acked-by: OGAWA Hirofumi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fat: Update free_clusters even if it is untrusted

2008-04-28T15:58:47+00:00

Currently, free_clusters is not updated until it is trusted, because
Windows doesn't update it correctly.

But if user is using FAT driver of Linux, it updates free_clusters
correctly.  Instead, this updates it even if it's untrusted, so if
free_clustes is correct, now keep correct value.

Signed-off-by: OGAWA Hirofumi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds