diff options
| author | Olaf Faaland <[email protected]> | 2017-03-20 17:51:16 -0700 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2017-03-20 17:51:16 -0700 |
| commit | a3478c074752610814f894375c3d947ece4938fe (patch) | |
| tree | d6697b5fd25dd47ca92b7579e92b1886ee687797 /config/kernel.m4 | |
| parent | f974e414268448fbb5507e91ed98be7fdf45054b (diff) | |
Linux 4.11 compat: iops.getattr and friends
In torvalds/linux@a528d35, there are changes to the getattr family of functions,
struct kstat, and the interface of inode_operations .getattr.
The inode_operations .getattr and simple_getattr() interface changed to:
int (*getattr) (const struct path *, struct dentry *, struct kstat *,
u32 request_mask, unsigned int query_flags)
The request_mask argument indicates which field(s) the caller intends to use.
Fields the caller has not specified via request_mask may be set in the returned
struct anyway, but their values may be approximate.
The query_flags argument indicates whether the filesystem must update
the attributes from the backing store.
Currently both fields are ignored. It is possible that getattr-related
functions within zfs could be optimized based on the request_mask.
struct kstat includes new fields:
u32 result_mask; /* What fields the user got */
u64 attributes; /* See STATX_ATTR_* flags */
struct timespec btime; /* File creation time */
Fields attribute and btime are cleared; the result_mask reflects this. These
appear to be optional based on simple_getattr() and vfs_getattr() within the
kernel, which take the same approach.
Reviewed-by: Chunwei Chen <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: Olaf Faaland <[email protected]>
Closes #5875
Diffstat (limited to 'config/kernel.m4')
| -rw-r--r-- | config/kernel.m4 | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/config/kernel.m4 b/config/kernel.m4 index 0b50a54e3..25271cedc 100644 --- a/config/kernel.m4 +++ b/config/kernel.m4 @@ -59,6 +59,7 @@ AC_DEFUN([ZFS_AC_CONFIG_KERNEL], [ ZFS_AC_KERNEL_INODE_OPERATIONS_CHECK_ACL_WITH_FLAGS ZFS_AC_KERNEL_INODE_OPERATIONS_GET_ACL ZFS_AC_KERNEL_INODE_OPERATIONS_SET_ACL + ZFS_AC_KERNEL_INODE_OPERATIONS_GETATTR ZFS_AC_KERNEL_INODE_SET_FLAGS ZFS_AC_KERNEL_GET_ACL_HANDLE_CACHE ZFS_AC_KERNEL_SHOW_OPTIONS |