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Implement File Attribute Support

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We add support for lsattr and chattr to resolve a regression caused
by 88c283952f that broke Python's
xattr.list(). That changet broke Gentoo Portage's FEATURES=xattr,
which depended on Python's xattr.list().

Only attributes common to both Solaris and Linux are supported. These
are 'a', 'd' and 'i' in Linux's lsattr and chattr commands. File
attributes exclusive to Solaris are present in the ZFS code, but cannot
be accessed or modified through this method.  That was the case prior to
this patch. The resolution of issue zfsonlinux/zfs#229 should implement
some method to permit access and modification of Solaris-specific
attributes.

References:
  https://bugs.gentoo.org/show_bug.cgi?id=483516

Original-patch-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1691
This commit is contained in:
Richard Yao
2011-07-01 15:56:35 -07:00
committed by Brian Behlendorf
parent 3b4f425a5a
commit 9d317793aa
3 changed files with 114 additions and 6 deletions
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include/linux/vfs_compat.h
-3
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@@ -152,9 +152,6 @@ typedef int zpl_umode_t;
#define zpl_sget(type, cmp, set, fl, mtd) sget(type, cmp, set, mtd)
#endif /* HAVE_5ARG_SGET */
#define ZFS_IOC_GETFLAGS FS_IOC_GETFLAGS
#define ZFS_IOC_SETFLAGS FS_IOC_SETFLAGS
#if defined(SEEK_HOLE) && defined(SEEK_DATA) && !defined(HAVE_LSEEK_EXECUTE)
static inline loff_t
lseek_execute(