projects / mirror_zfs.git / blame
| Commit | Line | Data |
|---|---|---|
| e2a82961 | 1 | AC_DEFUN([ZFS_AC_KERNEL_SRC_RENAME], [ |
| dbf6108b AS |
2 | dnl # |
| 3 | dnl # 3.9 (to 4.9) API change, | |
| 4 | dnl # | |
| 5 | dnl # A new version of iops->rename() was added (rename2) that takes a flag | |
| 6 | dnl # argument (to support renameat2). However this separate function was | |
| 7 | dnl # merged back into iops->rename() in Linux 4.9. | |
| 8 | dnl # | |
| 9 | ZFS_LINUX_TEST_SRC([inode_operations_rename2], [ | |
| 10 | #include <linux/fs.h> | |
| a41d0b29 | 11 | static int rename2_fn(struct inode *sip, struct dentry *sdp, |
| dbf6108b AS |
12 | struct inode *tip, struct dentry *tdp, |
| 13 | unsigned int flags) { return 0; } | |
| 14 | ||
| 15 | static const struct inode_operations | |
| 16 | iops __attribute__ ((unused)) = { | |
| 17 | .rename2 = rename2_fn, | |
| 18 | }; | |
| 19 | ],[]) | |
| 20 | ||
| e2a82961 CK |
21 | dnl # |
| 22 | dnl # 4.9 API change, | |
| dbf6108b AS |
23 | dnl # |
| 24 | dnl # iops->rename2() merged into iops->rename(), and iops->rename() now | |
| 25 | dnl # wants flags. | |
| e2a82961 CK |
26 | dnl # |
| 27 | ZFS_LINUX_TEST_SRC([inode_operations_rename_flags], [ | |
| b8d9e264 | 28 | #include <linux/fs.h> |
| a41d0b29 | 29 | static int rename_fn(struct inode *sip, struct dentry *sdp, |
| b8d9e264 CC |
30 | struct inode *tip, struct dentry *tdp, |
| 31 | unsigned int flags) { return 0; } | |
| 32 | ||
| 33 | static const struct inode_operations | |
| 34 | iops __attribute__ ((unused)) = { | |
| 35 | .rename = rename_fn, | |
| 36 | }; | |
| 608f8749 | 37 | ],[]) |
| e2a82961 | 38 | |
| dbf6108b AS |
39 | dnl # |
| 40 | dnl # EL7 compatibility | |
| 41 | dnl # | |
| 42 | dnl # EL7 has backported renameat2 support, but it's done by defining a | |
| 43 | dnl # separate iops wrapper structure that takes the .renameat2 function. | |
| 44 | dnl # | |
| 45 | ZFS_LINUX_TEST_SRC([dir_inode_operations_wrapper_rename2], [ | |
| 46 | #include <linux/fs.h> | |
| a41d0b29 | 47 | static int rename2_fn(struct inode *sip, struct dentry *sdp, |
| dbf6108b AS |
48 | struct inode *tip, struct dentry *tdp, |
| 49 | unsigned int flags) { return 0; } | |
| 50 | ||
| 51 | static const struct inode_operations_wrapper | |
| 52 | iops __attribute__ ((unused)) = { | |
| 53 | .rename2 = rename2_fn, | |
| 54 | }; | |
| 55 | ],[]) | |
| 56 | ||
| e2a82961 CK |
57 | dnl # |
| 58 | dnl # 5.12 API change, | |
| 59 | dnl # | |
| dbf6108b AS |
60 | dnl # Linux 5.12 introduced passing struct user_namespace* as the first |
| 61 | dnl # argument of the rename() and other inode_operations members. | |
| e2a82961 CK |
62 | dnl # |
| 63 | ZFS_LINUX_TEST_SRC([inode_operations_rename_userns], [ | |
| 64 | #include <linux/fs.h> | |
| a41d0b29 | 65 | static int rename_fn(struct user_namespace *user_ns, struct inode *sip, |
| e2a82961 CK |
66 | struct dentry *sdp, struct inode *tip, struct dentry *tdp, |
| 67 | unsigned int flags) { return 0; } | |
| 68 | ||
| 69 | static const struct inode_operations | |
| 70 | iops __attribute__ ((unused)) = { | |
| 71 | .rename = rename_fn, | |
| 72 | }; | |
| 73 | ],[]) | |
| d4dc53da YY |
74 | |
| 75 | dnl # | |
| 76 | dnl # 6.3 API change - the first arg is now struct mnt_idmap* | |
| 77 | dnl # | |
| 78 | ZFS_LINUX_TEST_SRC([inode_operations_rename_mnt_idmap], [ | |
| 79 | #include <linux/fs.h> | |
| a41d0b29 | 80 | static int rename_fn(struct mnt_idmap *idmap, struct inode *sip, |
| d4dc53da YY |
81 | struct dentry *sdp, struct inode *tip, struct dentry *tdp, |
| 82 | unsigned int flags) { return 0; } | |
| 83 | ||
| 84 | static const struct inode_operations | |
| 85 | iops __attribute__ ((unused)) = { | |
| 86 | .rename = rename_fn, | |
| 87 | }; | |
| 88 | ],[]) | |
| 608f8749 BB |
89 | ]) |
| 90 | ||
| e2a82961 | 91 | AC_DEFUN([ZFS_AC_KERNEL_RENAME], [ |
| d4dc53da YY |
92 | AC_MSG_CHECKING([whether iops->rename() takes struct mnt_idmap*]) |
| 93 | ZFS_LINUX_TEST_RESULT([inode_operations_rename_mnt_idmap], [ | |
| b8d9e264 | 94 | AC_MSG_RESULT(yes) |
| d4dc53da YY |
95 | AC_DEFINE(HAVE_IOPS_RENAME_IDMAP, 1, |
| 96 | [iops->rename() takes struct mnt_idmap*]) | |
| b8d9e264 | 97 | ],[ |
| d4dc53da YY |
98 | AC_MSG_CHECKING([whether iops->rename() takes struct user_namespace*]) |
| 99 | ZFS_LINUX_TEST_RESULT([inode_operations_rename_userns], [ | |
| e2a82961 | 100 | AC_MSG_RESULT(yes) |
| d4dc53da YY |
101 | AC_DEFINE(HAVE_IOPS_RENAME_USERNS, 1, |
| 102 | [iops->rename() takes struct user_namespace*]) | |
| e2a82961 CK |
103 | ],[ |
| 104 | AC_MSG_RESULT(no) | |
| dbf6108b | 105 | |
| d4dc53da YY |
106 | AC_MSG_CHECKING([whether iops->rename2() exists]) |
| 107 | ZFS_LINUX_TEST_RESULT([inode_operations_rename2], [ | |
| dbf6108b | 108 | AC_MSG_RESULT(yes) |
| d4dc53da | 109 | AC_DEFINE(HAVE_RENAME2, 1, [iops->rename2() exists]) |
| dbf6108b AS |
110 | ],[ |
| 111 | AC_MSG_RESULT(no) | |
| 112 | ||
| d4dc53da YY |
113 | AC_MSG_CHECKING([whether iops->rename() wants flags]) |
| 114 | ZFS_LINUX_TEST_RESULT([inode_operations_rename_flags], [ | |
| dbf6108b | 115 | AC_MSG_RESULT(yes) |
| d4dc53da YY |
116 | AC_DEFINE(HAVE_RENAME_WANTS_FLAGS, 1, |
| 117 | [iops->rename() wants flags]) | |
| dbf6108b AS |
118 | ],[ |
| 119 | AC_MSG_RESULT(no) | |
| d4dc53da YY |
120 | |
| 121 | AC_MSG_CHECKING([whether struct inode_operations_wrapper takes .rename2()]) | |
| 122 | ZFS_LINUX_TEST_RESULT([dir_inode_operations_wrapper_rename2], [ | |
| 123 | AC_MSG_RESULT(yes) | |
| 124 | AC_DEFINE(HAVE_RENAME2_OPERATIONS_WRAPPER, 1, | |
| 125 | [struct inode_operations_wrapper takes .rename2()]) | |
| 126 | ],[ | |
| 127 | AC_MSG_RESULT(no) | |
| 128 | ]) | |
| dbf6108b AS |
129 | ]) |
| 130 | ]) | |
| e2a82961 | 131 | ]) |
| b8d9e264 CC |
132 | ]) |
| 133 | ]) |