aboutsummaryrefslogtreecommitdiff
path: root/fs/xfs/libxfs/xfs_format.h
diff options
context:
space:
mode:
authorEmmanuel Grumbach <[email protected]>2015-12-13 09:41:59 +0200
committerEmmanuel Grumbach <[email protected]>2015-12-13 09:41:59 +0200
commit9b18d42dda985c99db4adde45bbdf7cd79a7525c (patch)
tree78481b44090a9ee19780091ade05a320cbc6a7bb /fs/xfs/libxfs/xfs_format.h
parent39bdb17ebb5bd7a5c8a231d7cac4a4d5ccc58149 (diff)
parent1b894521e60c1b91db1e8ba1278660e5c89f1b5f (diff)
Merge tag 'mac80211-next-for-davem-2015-12-07' into next
This pull request got a bit bigger than I wanted, due to needing to reshuffle and fix some bugs. I merged mac80211 to get the right base for some of these changes. * new mac80211 API for upcoming driver changes: EOSP handling, key iteration * scan abort changes allowing to cancel an ongoing scan * VHT IBSS 80+80 MHz support * re-enable full AP client state tracking after fixes * various small fixes (that weren't relevant for mac80211) * various cleanups
Diffstat (limited to 'fs/xfs/libxfs/xfs_format.h')
-rw-r--r--fs/xfs/libxfs/xfs_format.h18
1 files changed, 15 insertions, 3 deletions
diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h
index 9590a069e556..8774498ce0ff 100644
--- a/fs/xfs/libxfs/xfs_format.h
+++ b/fs/xfs/libxfs/xfs_format.h
@@ -60,6 +60,14 @@ struct xfs_ifork;
#define XFS_SB_VERSION_MOREBITSBIT 0x8000
/*
+ * The size of a single extended attribute on disk is limited by
+ * the size of index values within the attribute entries themselves.
+ * These are be16 fields, so we can only support attribute data
+ * sizes up to 2^16 bytes in length.
+ */
+#define XFS_XATTR_SIZE_MAX (1 << 16)
+
+/*
* Supported feature bit list is just all bits in the versionnum field because
* we've used them all up and understand them all. Except, of course, for the
* shared superblock bit, which nobody knows what it does and so is unsupported.
@@ -1483,13 +1491,17 @@ struct xfs_acl {
*/
#define XFS_ACL_MAX_ENTRIES(mp) \
(xfs_sb_version_hascrc(&mp->m_sb) \
- ? (XATTR_SIZE_MAX - sizeof(struct xfs_acl)) / \
+ ? (XFS_XATTR_SIZE_MAX - sizeof(struct xfs_acl)) / \
sizeof(struct xfs_acl_entry) \
: 25)
-#define XFS_ACL_MAX_SIZE(mp) \
+#define XFS_ACL_SIZE(cnt) \
(sizeof(struct xfs_acl) + \
- sizeof(struct xfs_acl_entry) * XFS_ACL_MAX_ENTRIES((mp)))
+ sizeof(struct xfs_acl_entry) * cnt)
+
+#define XFS_ACL_MAX_SIZE(mp) \
+ XFS_ACL_SIZE(XFS_ACL_MAX_ENTRIES((mp)))
+
/* On-disk XFS extended attribute names */
#define SGI_ACL_FILE "SGI_ACL_FILE"