X-Git-Url: https://git.camperquake.de/gitweb.cgi?a=blobdiff_plain;f=module%2Fzfs%2Fzfs_vnops.c;h=5b47cba7f6cd6a05644b0bc267cb15ce7fa92d86;hb=da88a7fbe8876437c25f1006f91ca5595659b8d2;hp=00534d845ca6cd9e8ad8ee5f4373cd8ed9c54c39;hpb=17c37660a14cc5e26cc668fdb285933fee4b6cf4;p=zfs.git

diff --git a/module/zfs/zfs_vnops.c b/module/zfs/zfs_vnops.c
index 00534d8..5b47cba 100644
--- a/module/zfs/zfs_vnops.c
+++ b/module/zfs/zfs_vnops.c
@@ -220,7 +220,11 @@ zfs_close(struct inode *ip, int flag, cred_t *cr)
 	ZFS_ENTER(zsb);
 	ZFS_VERIFY_ZP(zp);
 
-	/* Decrement the synchronous opens in the znode */
+	/*
+	 * Zero the synchronous opens in the znode.  Under Linux the
+	 * zfs_close() hook is not symmetric with zfs_open(), it is
+	 * only called once when the last reference is dropped.
+	 */
 	if (flag & O_SYNC)
 		zp->z_sync_cnt = 0;
 
@@ -335,7 +339,7 @@ mappedread(struct inode *ip, int nbytes, uio_t *uio)
 }
 #endif /* _KERNEL */
 
-offset_t zfs_read_chunk_size = 1024 * 1024; /* Tunable */
+unsigned long zfs_read_chunk_size = 1024 * 1024; /* Tunable */
 
 /*
  * Read bytes from specified file into supplied buffer.
@@ -4716,3 +4720,8 @@ zfs_retzcbuf(struct inode *ip, xuio_t *xuio, cred_t *cr)
 	return (0);
 }
 #endif /* HAVE_UIO_ZEROCOPY */
+
+#if defined(_KERNEL) && defined(HAVE_SPL)
+module_param(zfs_read_chunk_size, long, 0644);
+MODULE_PARM_DESC(zfs_read_chunk_size, "Bytes to read per chunk");
+#endif