diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/crypto/ghash.h | 23 | ||||
| -rw-r--r-- | include/linux/debugfs.h | 17 | ||||
| -rw-r--r-- | include/linux/fs.h | 1 | ||||
| -rw-r--r-- | include/linux/radix-tree.h | 6 | ||||
| -rw-r--r-- | include/linux/sem.h | 1 | ||||
| -rw-r--r-- | include/uapi/linux/btrfs.h | 12 |
6 files changed, 56 insertions, 4 deletions
diff --git a/include/crypto/ghash.h b/include/crypto/ghash.h new file mode 100644 index 000000000..2a61c9bba --- /dev/null +++ b/include/crypto/ghash.h @@ -0,0 +1,23 @@ +/* + * Common values for GHASH algorithms + */ + +#ifndef __CRYPTO_GHASH_H__ +#define __CRYPTO_GHASH_H__ + +#include <linux/types.h> +#include <crypto/gf128mul.h> + +#define GHASH_BLOCK_SIZE 16 +#define GHASH_DIGEST_SIZE 16 + +struct ghash_ctx { + struct gf128mul_4k *gf128; +}; + +struct ghash_desc_ctx { + u8 buffer[GHASH_BLOCK_SIZE]; + u32 bytes; +}; + +#endif diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h index 1438e2322..4d3f0d1ae 100644 --- a/include/linux/debugfs.h +++ b/include/linux/debugfs.h @@ -45,6 +45,23 @@ extern struct dentry *arch_debugfs_dir; extern struct srcu_struct debugfs_srcu; +/** + * debugfs_real_fops - getter for the real file operation + * @filp: a pointer to a struct file + * + * Must only be called under the protection established by + * debugfs_use_file_start(). + */ +static inline const struct file_operations *debugfs_real_fops(struct file *filp) + __must_hold(&debugfs_srcu) +{ + /* + * Neither the pointer to the struct file_operations, nor its + * contents ever change -- srcu_dereference() is not needed here. + */ + return filp->f_path.dentry->d_fsdata; +} + #if defined(CONFIG_DEBUG_FS) struct dentry *debugfs_create_file(const char *name, umode_t mode, diff --git a/include/linux/fs.h b/include/linux/fs.h index 3b3703885..6f180afdd 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -227,6 +227,7 @@ typedef int (dio_iodone_t)(struct kiocb *iocb, loff_t offset, #define ATTR_KILL_PRIV (1 << 14) #define ATTR_OPEN (1 << 15) /* Truncating from open(O_TRUNC) */ #define ATTR_TIMES_SET (1 << 16) +#define ATTR_TOUCH (1 << 17) /* * Whiteout is represented by a char device. The following constants define the diff --git a/include/linux/radix-tree.h b/include/linux/radix-tree.h index 4c45105de..52b97db93 100644 --- a/include/linux/radix-tree.h +++ b/include/linux/radix-tree.h @@ -280,9 +280,9 @@ bool __radix_tree_delete_node(struct radix_tree_root *root, struct radix_tree_node *node); void *radix_tree_delete_item(struct radix_tree_root *, unsigned long, void *); void *radix_tree_delete(struct radix_tree_root *, unsigned long); -struct radix_tree_node *radix_tree_replace_clear_tags( - struct radix_tree_root *root, - unsigned long index, void *entry); +void radix_tree_clear_tags(struct radix_tree_root *root, + struct radix_tree_node *node, + void **slot); unsigned int radix_tree_gang_lookup(struct radix_tree_root *root, void **results, unsigned long first_index, unsigned int max_items); diff --git a/include/linux/sem.h b/include/linux/sem.h index 976ce3a19..d0efd6e6c 100644 --- a/include/linux/sem.h +++ b/include/linux/sem.h @@ -21,6 +21,7 @@ struct sem_array { struct list_head list_id; /* undo requests on this array */ int sem_nsems; /* no. of semaphores in array */ int complex_count; /* pending complex operations */ + bool complex_mode; /* no parallel simple ops */ }; #ifdef CONFIG_SYSVIPC diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h index ac5eacd30..db4c253f8 100644 --- a/include/uapi/linux/btrfs.h +++ b/include/uapi/linux/btrfs.h @@ -239,7 +239,17 @@ struct btrfs_ioctl_fs_info_args { * Used by: * struct btrfs_ioctl_feature_flags */ -#define BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE (1ULL << 0) +#define BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE (1ULL << 0) +/* + * Older kernels (< 4.9) on big-endian systems produced broken free space tree + * bitmaps, and btrfs-progs also used to corrupt the free space tree (versions + * < 4.7.3). If this bit is clear, then the free space tree cannot be trusted. + * btrfs-progs can also intentionally clear this bit to ask the kernel to + * rebuild the free space tree, however this might not work on older kernels + * that do not know about this bit. If not sure, clear the cache manually on + * first mount when booting older kernel versions. + */ +#define BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE_VALID (1ULL << 1) #define BTRFS_FEATURE_INCOMPAT_MIXED_BACKREF (1ULL << 0) #define BTRFS_FEATURE_INCOMPAT_DEFAULT_SUBVOL (1ULL << 1) |