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path: root/fs/btrfs/xattr.c
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2008-12-17Btrfs: fix return value from btrfs_listxattr when buffer size is too smallYehuda Sadeh Weinraub1-1/+1
The return value was being overwritten. Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
2008-09-25Btrfs: optimize btrget/set/removexattrChristoph Hellwig1-131/+73
btrfs actually stores the whole xattr name, including the prefix ondisk, so using the generic resolver that strips off the prefix is not very helpful. Instead do the real ondisk xattrs manually and only use the generic resolver for synthetic xattrs like ACLs. (Sorry Josef for guiding you towards the wrong direction here intially) Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25btrfs: optmize listxattrChristoph Hellwig1-71/+11
The ->list handler is really not useful at all, because we always call btrfs_xattr_generic_list anyway. After this is done find_btrfs_xattr_handler becomes unused, and it becomes obvious that the temporary name buffer allocation isn't needed but we can directly copy into the supplied buffer. Tested with various getfattr -d calls on varying xattr lists. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Add ACL supportJosef Bacik1-10/+16
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Remove unused xattr codeJosef Bacik1-51/+0
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Replace the big fs_mutex with a collection of other locksChris Mason1-9/+1
Extent alloctions are still protected by a large alloc_mutex. Objectid allocations are covered by a objectid mutex Other btree operations are protected by a lock on individual btree nodes Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Dislable acl xattr handlersYan1-6/+6
The acl code is not yet complete, and the xattr handlers are causing problems for cp -p on some distros. Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Fix compile on kernel without ACLs enabledYan1-2/+4
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Change magic string to reflect new formatChris Mason1-1/+2
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Implement ACLs setting and gettingYan1-12/+4
ACLs are stored but not used for permission checks (yet) Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: xattr fixesJosef Bacik1-2/+2
This fixes two typos that Yan pointed out to me. Thanks much, Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Make ACLs return EOPNOTSUPP for nowJosef Bacik1-2/+2
There was a slight problem with ACL's returning EINVAL when you tried to set an ACL. This isn't correct, we should be returning EOPNOTSUPP, so I did a very ugly thing and just commented everybody out and made them return EOPNOTSUPP. This is only temporary, I'm going back to implement ACL's, but Chris wants to push out a release so this will suffice for now. Also Yan suggested setting reada to -1 in the delete case to enable backwards readahead, and in the listxattr case I moved path->reada = 2; to after the if (!path) check so we can avoid a possible null dereference. Thank you, Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25xattr support for btrfsJosef Bacik1-0/+497
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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