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Commit f808e138 authored by Martin Brandenburg's avatar Martin Brandenburg
Browse files

Merge branch 'features' into for-next 

Pull in an OrangeFS branch containing improvements which the userspace
component and the kernel to negotiate mutually supported features.
parents a21aae3b 0c95ad76

fs/orangefs/devorangefs-req.c

+10 −0
Original line number Diff line number Diff line
@@ -17,6 +17,8 @@ 


/* this file implements the /dev/pvfs2-req device node */



uint32_t orangefs_userspace_version;



static int open_access_count;



#define DUMP_DEVICE_ERROR()                                                   \
@@ -387,6 +389,13 @@ static ssize_t orangefs_devreq_write_iter(struct kiocb *iocb, 
		return -EPROTO;

	}



	if (!orangefs_userspace_version) {

		orangefs_userspace_version = head.version;

	} else if (orangefs_userspace_version != head.version) {

		gossip_err("Error: userspace version changes\n");

		return -EPROTO;

	}



	/* remove the op from the in progress hash table */

	op = orangefs_devreq_remove_op(head.tag);

	if (!op) {
@@ -527,6 +536,7 @@ static int orangefs_devreq_release(struct inode *inode, struct file *file) 
	gossip_debug(GOSSIP_DEV_DEBUG,

		     "pvfs2-client-core: device close complete\n");

	open_access_count = 0;

	orangefs_userspace_version = 0;

	mutex_unlock(&devreq_mutex);

	return 0;

}

fs/orangefs/downcall.h

+6 −0
Original line number Diff line number Diff line
@@ -101,6 +101,11 @@ struct orangefs_fs_key_response { 
	char fs_key[FS_KEY_BUF_SIZE];

};



/* 2.9.6 */

struct orangefs_features_response {

	__u64 features;

};



struct orangefs_downcall_s {

	__s32 type;

	__s32 status;
@@ -122,6 +127,7 @@ struct orangefs_downcall_s { 
		struct orangefs_param_response param;

		struct orangefs_perf_count_response perf_count;

		struct orangefs_fs_key_response fs_key;

		struct orangefs_features_response features;

	} resp;

};

fs/orangefs/file.c

+8 −5
Original line number Diff line number Diff line
@@ -624,11 +624,14 @@ static int orangefs_file_release(struct inode *inode, struct file *file) 
	if (file->f_path.dentry->d_inode &&

	    file->f_path.dentry->d_inode->i_mapping &&

	    mapping_nrpages(&file->f_path.dentry->d_inode->i_data)) {

		if (orangefs_features & ORANGEFS_FEATURE_READAHEAD) {

			gossip_debug(GOSSIP_INODE_DEBUG,

			    "calling flush_racache on %pU\n",

			    get_khandle_from_ino(inode));

			flush_racache(inode);

		gossip_debug(GOSSIP_INODE_DEBUG, "flush_racache finished\n");

			gossip_debug(GOSSIP_INODE_DEBUG,

			    "flush_racache finished\n");

		}

		truncate_inode_pages(file->f_path.dentry->d_inode->i_mapping,

				     0);

	}

fs/orangefs/orangefs-cache.c

+2 −0
Original line number Diff line number Diff line
@@ -97,6 +97,8 @@ char *get_opname_string(struct orangefs_kernel_op_s *new_op) 
			return "OP_FSYNC";

		else if (type == ORANGEFS_VFS_OP_FSKEY)

			return "OP_FSKEY";

		else if (type == ORANGEFS_VFS_OP_FEATURES)

			return "OP_FEATURES";

	}

	return "OP_UNKNOWN?";

}

fs/orangefs/orangefs-dev-proto.h

+4 −0
Original line number Diff line number Diff line
@@ -41,6 +41,10 @@ 
#define ORANGEFS_VFS_OP_FSYNC          0xFF00EE01

#define ORANGEFS_VFS_OP_FSKEY             0xFF00EE02

#define ORANGEFS_VFS_OP_READDIRPLUS       0xFF00EE03

#define ORANGEFS_VFS_OP_FEATURES	0xFF00EE05 /* 2.9.6 */



/* features is a 64-bit unsigned bitmask */

#define ORANGEFS_FEATURE_READAHEAD 1



/*

 * Misc constants. Please retain them as multiples of 8!