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-rw-r--r--fs/bcachefs/fs-ioctl.h81
1 files changed, 81 insertions, 0 deletions
diff --git a/fs/bcachefs/fs-ioctl.h b/fs/bcachefs/fs-ioctl.h
new file mode 100644
index 0000000000..d30f9bb056
--- /dev/null
+++ b/fs/bcachefs/fs-ioctl.h
@@ -0,0 +1,81 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _BCACHEFS_FS_IOCTL_H
+#define _BCACHEFS_FS_IOCTL_H
+
+/* Inode flags: */
+
+/* bcachefs inode flags -> vfs inode flags: */
+static const __maybe_unused unsigned bch_flags_to_vfs[] = {
+ [__BCH_INODE_sync] = S_SYNC,
+ [__BCH_INODE_immutable] = S_IMMUTABLE,
+ [__BCH_INODE_append] = S_APPEND,
+ [__BCH_INODE_noatime] = S_NOATIME,
+};
+
+/* bcachefs inode flags -> FS_IOC_GETFLAGS: */
+static const __maybe_unused unsigned bch_flags_to_uflags[] = {
+ [__BCH_INODE_sync] = FS_SYNC_FL,
+ [__BCH_INODE_immutable] = FS_IMMUTABLE_FL,
+ [__BCH_INODE_append] = FS_APPEND_FL,
+ [__BCH_INODE_nodump] = FS_NODUMP_FL,
+ [__BCH_INODE_noatime] = FS_NOATIME_FL,
+};
+
+/* bcachefs inode flags -> FS_IOC_FSGETXATTR: */
+static const __maybe_unused unsigned bch_flags_to_xflags[] = {
+ [__BCH_INODE_sync] = FS_XFLAG_SYNC,
+ [__BCH_INODE_immutable] = FS_XFLAG_IMMUTABLE,
+ [__BCH_INODE_append] = FS_XFLAG_APPEND,
+ [__BCH_INODE_nodump] = FS_XFLAG_NODUMP,
+ [__BCH_INODE_noatime] = FS_XFLAG_NOATIME,
+ //[__BCH_INODE_PROJINHERIT] = FS_XFLAG_PROJINHERIT;
+};
+
+#define set_flags(_map, _in, _out) \
+do { \
+ unsigned _i; \
+ \
+ for (_i = 0; _i < ARRAY_SIZE(_map); _i++) \
+ if ((_in) & (1 << _i)) \
+ (_out) |= _map[_i]; \
+ else \
+ (_out) &= ~_map[_i]; \
+} while (0)
+
+#define map_flags(_map, _in) \
+({ \
+ unsigned _out = 0; \
+ \
+ set_flags(_map, _in, _out); \
+ _out; \
+})
+
+#define map_flags_rev(_map, _in) \
+({ \
+ unsigned _i, _out = 0; \
+ \
+ for (_i = 0; _i < ARRAY_SIZE(_map); _i++) \
+ if ((_in) & _map[_i]) { \
+ (_out) |= 1 << _i; \
+ (_in) &= ~_map[_i]; \
+ } \
+ (_out); \
+})
+
+#define map_defined(_map) \
+({ \
+ unsigned _in = ~0; \
+ \
+ map_flags_rev(_map, _in); \
+})
+
+/* Set VFS inode flags from bcachefs inode: */
+static inline void bch2_inode_flags_to_vfs(struct bch_inode_info *inode)
+{
+ set_flags(bch_flags_to_vfs, inode->ei_inode.bi_flags, inode->v.i_flags);
+}
+
+long bch2_fs_file_ioctl(struct file *, unsigned, unsigned long);
+long bch2_compat_fs_ioctl(struct file *, unsigned, unsigned long);
+
+#endif /* _BCACHEFS_FS_IOCTL_H */