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mirror_zfs/config/kernel-tmpfile.m4

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Add support for O_TMPFILE Linux 3.11 add O_TMPFILE to open(2), which allow creating an unlinked file on supported filesystem. It's basically doing open(2) and unlink(2) atomically. The filesystem support is added through i_op->tmpfile. We basically copy the create operation except we get rid of the link and name related stuff and add the new node to unlinked set. We also add support for linkat(2) to link tmpfile. However, since all previous file operation will skip ZIL, we force a txg_wait_synced to make sure we are sync safe. Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
2016-01-26 23:29:46 +03:00
dnl #
dnl # 3.11 API change
dnl # Add support for i_op->tmpfile
dnl #
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 22:50:34 +03:00
AC_DEFUN([ZFS_AC_KERNEL_SRC_TMPFILE], [
Linux 6.1 compat: open inside tmpfile() Linux 863f144 modified the .tmpfile interface to pass a struct file, rather than a struct dentry, and expect the tmpfile implementation to open inside of tmpfile(). This patch implements a configuration test that checks for this new API and appropriately sets a HAVE_TMPFILE_DENTRY flag that tracks this old API. Contingent on this flag, the appropriate API is implemented. Reviewed-by: Richard Yao <richard.yao@alumni.stonybrook.edu> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Antonio Russo <aerusso@aerusso.net> Closes #14301 Closes #14343
2022-12-31 17:51:32 +03:00
dnl #
dnl # 6.1 API change
dnl # use struct file instead of struct dentry
dnl #
ZFS_LINUX_TEST_SRC([inode_operations_tmpfile], [
#include <linux/fs.h>
int tmpfile(struct user_namespace *userns,
struct inode *inode, struct file *file,
umode_t mode) { return 0; }
static struct inode_operations
iops __attribute__ ((unused)) = {
.tmpfile = tmpfile,
};
],[])
Update tmpfile() existence detection Linux changed the tmpfile() signature again in torvalds/linux@6521f89, which in turn broke our HAVE_TMPFILE detection in configure. Update that macro to include the new case, and change the signature of zpl_tmpfile as appropriate. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Rich Ercolani <rincebrain@gmail.com> Closes: #12060 Closes: #12087
2021-05-21 02:02:36 +03:00
dnl #
dnl # 5.11 API change
dnl # add support for userns parameter to tmpfile
dnl #
Linux 6.1 compat: open inside tmpfile() Linux 863f144 modified the .tmpfile interface to pass a struct file, rather than a struct dentry, and expect the tmpfile implementation to open inside of tmpfile(). This patch implements a configuration test that checks for this new API and appropriately sets a HAVE_TMPFILE_DENTRY flag that tracks this old API. Contingent on this flag, the appropriate API is implemented. Reviewed-by: Richard Yao <richard.yao@alumni.stonybrook.edu> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Antonio Russo <aerusso@aerusso.net> Closes #14301 Closes #14343
2022-12-31 17:51:32 +03:00
ZFS_LINUX_TEST_SRC([inode_operations_tmpfile_dentry_userns], [
Add support for O_TMPFILE Linux 3.11 add O_TMPFILE to open(2), which allow creating an unlinked file on supported filesystem. It's basically doing open(2) and unlink(2) atomically. The filesystem support is added through i_op->tmpfile. We basically copy the create operation except we get rid of the link and name related stuff and add the new node to unlinked set. We also add support for linkat(2) to link tmpfile. However, since all previous file operation will skip ZIL, we force a txg_wait_synced to make sure we are sync safe. Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
2016-01-26 23:29:46 +03:00
#include <linux/fs.h>
Update tmpfile() existence detection Linux changed the tmpfile() signature again in torvalds/linux@6521f89, which in turn broke our HAVE_TMPFILE detection in configure. Update that macro to include the new case, and change the signature of zpl_tmpfile as appropriate. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Rich Ercolani <rincebrain@gmail.com> Closes: #12060 Closes: #12087
2021-05-21 02:02:36 +03:00
int tmpfile(struct user_namespace *userns,
struct inode *inode, struct dentry *dentry,
Add support for O_TMPFILE Linux 3.11 add O_TMPFILE to open(2), which allow creating an unlinked file on supported filesystem. It's basically doing open(2) and unlink(2) atomically. The filesystem support is added through i_op->tmpfile. We basically copy the create operation except we get rid of the link and name related stuff and add the new node to unlinked set. We also add support for linkat(2) to link tmpfile. However, since all previous file operation will skip ZIL, we force a txg_wait_synced to make sure we are sync safe. Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
2016-01-26 23:29:46 +03:00
umode_t mode) { return 0; }
static struct inode_operations
iops __attribute__ ((unused)) = {
.tmpfile = tmpfile,
};
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 22:50:34 +03:00
],[])
Linux 6.1 compat: open inside tmpfile() Linux 863f144 modified the .tmpfile interface to pass a struct file, rather than a struct dentry, and expect the tmpfile implementation to open inside of tmpfile(). This patch implements a configuration test that checks for this new API and appropriately sets a HAVE_TMPFILE_DENTRY flag that tracks this old API. Contingent on this flag, the appropriate API is implemented. Reviewed-by: Richard Yao <richard.yao@alumni.stonybrook.edu> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Antonio Russo <aerusso@aerusso.net> Closes #14301 Closes #14343
2022-12-31 17:51:32 +03:00
ZFS_LINUX_TEST_SRC([inode_operations_tmpfile_dentry], [
Update tmpfile() existence detection Linux changed the tmpfile() signature again in torvalds/linux@6521f89, which in turn broke our HAVE_TMPFILE detection in configure. Update that macro to include the new case, and change the signature of zpl_tmpfile as appropriate. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Rich Ercolani <rincebrain@gmail.com> Closes: #12060 Closes: #12087
2021-05-21 02:02:36 +03:00
#include <linux/fs.h>
int tmpfile(struct inode *inode, struct dentry *dentry,
umode_t mode) { return 0; }
static struct inode_operations
iops __attribute__ ((unused)) = {
.tmpfile = tmpfile,
};
],[])
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 22:50:34 +03:00
])
AC_DEFUN([ZFS_AC_KERNEL_TMPFILE], [
AC_MSG_CHECKING([whether i_op->tmpfile() exists])
Linux 6.1 compat: open inside tmpfile() Linux 863f144 modified the .tmpfile interface to pass a struct file, rather than a struct dentry, and expect the tmpfile implementation to open inside of tmpfile(). This patch implements a configuration test that checks for this new API and appropriately sets a HAVE_TMPFILE_DENTRY flag that tracks this old API. Contingent on this flag, the appropriate API is implemented. Reviewed-by: Richard Yao <richard.yao@alumni.stonybrook.edu> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Antonio Russo <aerusso@aerusso.net> Closes #14301 Closes #14343
2022-12-31 17:51:32 +03:00
ZFS_LINUX_TEST_RESULT([inode_operations_tmpfile], [
Add support for O_TMPFILE Linux 3.11 add O_TMPFILE to open(2), which allow creating an unlinked file on supported filesystem. It's basically doing open(2) and unlink(2) atomically. The filesystem support is added through i_op->tmpfile. We basically copy the create operation except we get rid of the link and name related stuff and add the new node to unlinked set. We also add support for linkat(2) to link tmpfile. However, since all previous file operation will skip ZIL, we force a txg_wait_synced to make sure we are sync safe. Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
2016-01-26 23:29:46 +03:00
AC_MSG_RESULT(yes)
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 22:50:34 +03:00
AC_DEFINE(HAVE_TMPFILE, 1, [i_op->tmpfile() exists])
Update tmpfile() existence detection Linux changed the tmpfile() signature again in torvalds/linux@6521f89, which in turn broke our HAVE_TMPFILE detection in configure. Update that macro to include the new case, and change the signature of zpl_tmpfile as appropriate. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Rich Ercolani <rincebrain@gmail.com> Closes: #12060 Closes: #12087
2021-05-21 02:02:36 +03:00
AC_DEFINE(HAVE_TMPFILE_USERNS, 1, [i_op->tmpfile() has userns])
Add support for O_TMPFILE Linux 3.11 add O_TMPFILE to open(2), which allow creating an unlinked file on supported filesystem. It's basically doing open(2) and unlink(2) atomically. The filesystem support is added through i_op->tmpfile. We basically copy the create operation except we get rid of the link and name related stuff and add the new node to unlinked set. We also add support for linkat(2) to link tmpfile. However, since all previous file operation will skip ZIL, we force a txg_wait_synced to make sure we are sync safe. Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
2016-01-26 23:29:46 +03:00
],[
Linux 6.1 compat: open inside tmpfile() Linux 863f144 modified the .tmpfile interface to pass a struct file, rather than a struct dentry, and expect the tmpfile implementation to open inside of tmpfile(). This patch implements a configuration test that checks for this new API and appropriately sets a HAVE_TMPFILE_DENTRY flag that tracks this old API. Contingent on this flag, the appropriate API is implemented. Reviewed-by: Richard Yao <richard.yao@alumni.stonybrook.edu> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Antonio Russo <aerusso@aerusso.net> Closes #14301 Closes #14343
2022-12-31 17:51:32 +03:00
ZFS_LINUX_TEST_RESULT([inode_operations_tmpfile_dentry_userns], [
Update tmpfile() existence detection Linux changed the tmpfile() signature again in torvalds/linux@6521f89, which in turn broke our HAVE_TMPFILE detection in configure. Update that macro to include the new case, and change the signature of zpl_tmpfile as appropriate. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Rich Ercolani <rincebrain@gmail.com> Closes: #12060 Closes: #12087
2021-05-21 02:02:36 +03:00
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_TMPFILE, 1, [i_op->tmpfile() exists])
Linux 6.1 compat: open inside tmpfile() Linux 863f144 modified the .tmpfile interface to pass a struct file, rather than a struct dentry, and expect the tmpfile implementation to open inside of tmpfile(). This patch implements a configuration test that checks for this new API and appropriately sets a HAVE_TMPFILE_DENTRY flag that tracks this old API. Contingent on this flag, the appropriate API is implemented. Reviewed-by: Richard Yao <richard.yao@alumni.stonybrook.edu> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Antonio Russo <aerusso@aerusso.net> Closes #14301 Closes #14343
2022-12-31 17:51:32 +03:00
AC_DEFINE(HAVE_TMPFILE_USERNS, 1, [i_op->tmpfile() has userns])
AC_DEFINE(HAVE_TMPFILE_DENTRY, 1, [i_op->tmpfile() uses old dentry signature])
Update tmpfile() existence detection Linux changed the tmpfile() signature again in torvalds/linux@6521f89, which in turn broke our HAVE_TMPFILE detection in configure. Update that macro to include the new case, and change the signature of zpl_tmpfile as appropriate. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Rich Ercolani <rincebrain@gmail.com> Closes: #12060 Closes: #12087
2021-05-21 02:02:36 +03:00
],[
Linux 6.1 compat: open inside tmpfile() Linux 863f144 modified the .tmpfile interface to pass a struct file, rather than a struct dentry, and expect the tmpfile implementation to open inside of tmpfile(). This patch implements a configuration test that checks for this new API and appropriately sets a HAVE_TMPFILE_DENTRY flag that tracks this old API. Contingent on this flag, the appropriate API is implemented. Reviewed-by: Richard Yao <richard.yao@alumni.stonybrook.edu> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Antonio Russo <aerusso@aerusso.net> Closes #14301 Closes #14343
2022-12-31 17:51:32 +03:00
ZFS_LINUX_TEST_RESULT([inode_operations_tmpfile_dentry], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_TMPFILE, 1, [i_op->tmpfile() exists])
AC_DEFINE(HAVE_TMPFILE_DENTRY, 1, [i_op->tmpfile() uses old dentry signature])
],[
Introduce ZFS_LINUX_REQUIRE_API autoconf macro Currently, if API tests fail, we either ignore the failures, or unconditionally halt the kernel build. This leads to situations where incompatibilities with existing APIs may develop, but not trip the configure compatibility checks. This introduces a new mechanism to require APIs for kernels above a particular version. While not perfect, this at least guarantees mainline kernels do not break existing APIs without at least providing some warning. Reviewed-by: Richard Yao <richard.yao@alumni.stonybrook.edu> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Antonio Russo <aerusso@aerusso.net> Closes #14343
2023-01-05 07:41:16 +03:00
ZFS_LINUX_REQUIRE_API([i_op->tmpfile()], [3.11])
Linux 6.1 compat: open inside tmpfile() Linux 863f144 modified the .tmpfile interface to pass a struct file, rather than a struct dentry, and expect the tmpfile implementation to open inside of tmpfile(). This patch implements a configuration test that checks for this new API and appropriately sets a HAVE_TMPFILE_DENTRY flag that tracks this old API. Contingent on this flag, the appropriate API is implemented. Reviewed-by: Richard Yao <richard.yao@alumni.stonybrook.edu> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Antonio Russo <aerusso@aerusso.net> Closes #14301 Closes #14343
2022-12-31 17:51:32 +03:00
])
Update tmpfile() existence detection Linux changed the tmpfile() signature again in torvalds/linux@6521f89, which in turn broke our HAVE_TMPFILE detection in configure. Update that macro to include the new case, and change the signature of zpl_tmpfile as appropriate. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Rich Ercolani <rincebrain@gmail.com> Closes: #12060 Closes: #12087
2021-05-21 02:02:36 +03:00
])
Add support for O_TMPFILE Linux 3.11 add O_TMPFILE to open(2), which allow creating an unlinked file on supported filesystem. It's basically doing open(2) and unlink(2) atomically. The filesystem support is added through i_op->tmpfile. We basically copy the create operation except we get rid of the link and name related stuff and add the new node to unlinked set. We also add support for linkat(2) to link tmpfile. However, since all previous file operation will skip ZIL, we force a txg_wait_synced to make sure we are sync safe. Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
2016-01-26 23:29:46 +03:00
])
])
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