linux/fs/ext4
Eric Sandeen 0040d9875d allow in-inode EAs on ext4 root inode
The ext3 root inode was treated specially with respect
to in-inode extended attributes, for reasons detailed
in the removed comment below.  The first mkfs-created
inodes would not get extra_i_size or the EXT3_STATE_XATTR
flag set in ext3_read_inode, which disallowed reading or
setting in-inode EAs on the root.

However, in ext4, ext4_mark_inode_dirty calls
ext4_expand_extra_isize for all inodes; once this is done
EAs may be placed in the root ext4 inode body.

But for reasons above, it won't be found after a reboot.

testcase:

setfattr -n user.name -v value mntpt/
setfattr -n user.name2 -v value2 mntpt/
umount mntpt/; remount mntpt/
getfattr -d mntpt/

name2/value2 has gone missing; debugfs shows it in the
inode body, but it is not found there by getattr.

The following fixes it up; newer mkfs appears to properly
zero the inodes, so this workaround isn't needed for ext4.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2008-02-05 22:36:43 -05:00
..
acl.c Introduce is_owner_or_cap() to wrap CAP_FOWNER use with fsuid check 2007-07-17 12:00:03 -07:00
acl.h
balloc.c ext[234]: cleanup ext[234]_bg_num_gdb() 2008-02-06 10:41:21 -08:00
bitmap.c fs: mark nibblemap const 2007-10-17 08:42:47 -07:00
dir.c ext4: Introduce ext4_lblk_t 2008-01-28 23:58:27 -05:00
ext4_jbd2.c
extents.c ext4: Use the ext4_ext_actual_len() helper function 2008-01-28 23:58:27 -05:00
file.c ext4: store maxbytes for bitmapped files and return EFBIG as appropriate 2008-01-28 23:58:27 -05:00
fsync.c ext4: sparse fixes 2007-10-17 18:50:03 -04:00
group.h ext4: add ext4_group_t, and change all group variables to this type. 2008-01-28 23:58:27 -05:00
hash.c
ialloc.c iget: stop EXT4 from using iget() and read_inode() 2008-02-07 08:42:27 -08:00
inode.c allow in-inode EAs on ext4 root inode 2008-02-05 22:36:43 -05:00
ioctl.c ext4: Add EXT4_IOC_MIGRATE ioctl 2008-01-28 23:58:26 -05:00
Makefile ext4: Add multi block allocator for ext4 2008-01-29 00:19:52 -05:00
mballoc.c ext4: Fix null bh pointer dereference in mballoc 2008-02-10 01:07:28 -05:00
migrate.c ext4: Don't set EXTENTS_FL flag for fast symlinks 2008-02-05 10:56:37 -05:00
namei.c ext4: Don't set EXTENTS_FL flag for fast symlinks 2008-02-05 10:56:37 -05:00
namei.h
resize.c iget: stop EXT4 from using iget() and read_inode() 2008-02-07 08:42:27 -08:00
super.c iget: stop EXT4 from using iget() and read_inode() 2008-02-07 08:42:27 -08:00
symlink.c
xattr_security.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
xattr_trusted.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
xattr_user.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
xattr.c ext4: Add multi block allocator for ext4 2008-01-29 00:19:52 -05:00
xattr.h ext4: Expand extra_inodes space per the s_{want,min}_extra_isize fields 2007-07-18 09:19:57 -04:00