Limit the total number of entries and therefore the approximate memory
consumption instead of doing this on a per directory basis as it was previously.
This makes more sense as it limits not only the width but also the depth of the
directory tree.
Further, instead of hardcoding this value, allow to pass this information as
additional optional parameter 'entires-max'.
By this, creation of the archive with directories containing a large number of
entries is possible.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
By this it is possible to read and check just the first u64 of the corresponding
structs in order to identify the items.
This is needed for the fuse implementation in order to get entries based on the
archive offset, used as inode.
Directories are referenced by the offset to the goodbye tail while other items
are referenced by the offset of the filename followed by the entry.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
This structure contains all the attributes allowing to easily store those within
a e.g. dir buffer.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
Not all filesystems support features such as xattrs,acl,... and trying to get
them is rather expensive.
By getting the supported features based on the filesystem magic and masking the
user set feature flags, unsupported features are excluded rather inexpensively
while encoding the archive.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
In addition to the format definition, the traits needed for sorting of xattr
entries by name are derived.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
Christian Ebner
Dietmar Maurer