Module Name: src
Committed By: msaitoh
Date: Mon Dec 22 13:00:47 UTC 2014
Modified Files:
src/sys/ufs/ufs [netbsd-6]: extattr.h
Log Message:
Pull up following revision(s) (requested by manu in ticket #1218):
sys/ufs/ufs/extattr.h: revision 1.11
Bump UFS1 extended attribute max name length to 256
For extended attribute name max length, kernel filesystem-independant
code use either EXTATTR_MAXNAMELEN (BSD API) or XATTR_NAME_MAX (Linux
API),
which are both defined as KERNEL_NAME_MAX and fits Linux limit of 255
without training \0.
UFS1 code had a lower limit that broke Linux compatibility. We can bump
the limit without sacrifying backward compatibility, because:
1) There is no API exposing this limit outside the kernel. Upper kernel
layers have a larger limit handle the increase without a hitch
2) Each attribute has its own backing store in the fileystem, the name
of the backing store matching the attribute name. A newer kernel can
create/read/write backing store for longer attribute names and will
have no problem with existing shorter names.
To generate a diff of this commit:
cvs rdiff -u -r1.10 -r1.10.8.1 src/sys/ufs/ufs/extattr.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
