linux-toradex.git/fs/udf/udf_sb.h, branch v4.4.124

udf: Fortify LVID loading

2013-09-24T09:23:33+00:00

A user has reported an oops in udf_statfs() that was caused by
numOfPartitions entry in LVID structure being corrupted. Fix the problem
by verifying whether numOfPartitions makes sense at least to the extent
that LVID fits into a single block as it should.

Reported-by: Juergen Weigert 
Signed-off-by: Jan Kara

udf: Remove unused s_extLength from udf_bitmap

2013-02-05T16:29:53+00:00

s_extLength was assigned to but the value was never really used. So
just remove the field.

Signed-off-by: Jan Kara

udf: Make s_block_bitmap standard array

2013-02-05T16:29:52+00:00

struct udf_bitmap has array of buffer pointers attached to it. The code
unnecessarily used s_block_bitmap as a pointer to the array instead of
the standard trick of using 0 length array in the declaration. Change
that to make code more readable and actually shrink the structure by one
pointer.

Signed-off-by: Jan Kara

udf: Fix bitmap overflow on large filesystems with small block size

2013-02-05T16:29:30+00:00

For large UDF filesystems with 512-byte blocks the number of necessary
bitmap blocks is larger than 2^16 so s_nr_groups in udf_bitmap overflows
(the number will overflow for filesystems larger than 128 GB with
512-byte blocks). That results in ENOSPC errors despite the filesystem
has plenty of free space.

Fix the problem by changing s_nr_groups' type to 'int'. That is enough
even for filesystems 2^32 blocks (UDF maximum) and 512-byte blocksize.

Reported-and-tested-by: v10lator@myway.de
Signed-off-by: Jan Kara

userns: Convert the udf filesystem to use kuid/kgid where appropriate

2012-09-21T11:18:54+00:00

Cc: Jan Kara 
Signed-off-by: Eric W. Biederman

udf: propagate umode_t

2012-01-04T03:55:08+00:00

note re mount options: fmask and dmask are explicitly truncated to 12bit,
UDF_INVALID_MODE just needs to be guaranteed to differ from any such value.
And umask is used only in &= with umode_t, so we ignore other bits anyway.

Signed-off-by: Al Viro

udf: Cleanup metadata flags handling

2011-10-31T22:49:48+00:00

Use simple ->s_flags variable instead of u8 variable for each flag.

Signed-off-by: Jan Kara

udf: Skip mirror metadata FE loading when metadata FE is ok

2011-10-31T22:49:30+00:00

It is not necessary to load mirror metadata FE when metadata FE is OK.  So try
to read it only the first time udf_get_pblock_meta25() fails to map the block
from metadata FE.

Signed-off-by: Ashish Sangwan 
Signed-off-by: Namjae Jeon 
Signed-off-by: Jan Kara

udf: Protect default inode credentials by rwlock

2011-01-06T16:03:55+00:00

Superblock carries credentials (uid, gid, etc.) which are used as default
values in __udf_read_inode() when media does not provide these. These
credentials can change during remount so we protect them by a rwlock so that
each inode gets a consistent set of credentials.

Signed-off-by: Jan Kara

udf: Convert UDF_SB(sb)->s_flags to use bitops

2011-01-06T16:03:54+00:00

Use atomic bitops to manipulate with sb flags to make manipulation safe
without any locking.

Signed-off-by: Jan Kara