diff options
| author | Brian Behlendorf <[email protected]> | 2011-02-11 08:58:55 -0800 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2011-02-11 09:05:51 -0800 |
| commit | 7268e1bec8478639b7a1047e02ab931f30bc2f92 (patch) | |
| tree | f3351407cbadd80f457d2d363541135865d82ebe /config/kernel-fsync.m4 | |
| parent | 777d4af89137907adc91377327505f40c296035d (diff) | |
Linux 2.6.35 compat, fops->fsync()
The fsync() callback in the file_operations structure used to take
3 arguments. The callback now only takes 2 arguments because the
dentry argument was determined to be unused by all consumers. To
handle this a compatibility prototype was added to ensure the right
prototype is used. Our implementation never used the dentry argument
either so it's just a matter of using the right prototype.
Diffstat (limited to 'config/kernel-fsync.m4')
| -rw-r--r-- | config/kernel-fsync.m4 | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/config/kernel-fsync.m4 b/config/kernel-fsync.m4 new file mode 100644 index 000000000..2733dba33 --- /dev/null +++ b/config/kernel-fsync.m4 @@ -0,0 +1,20 @@ +dnl # +dnl # 2.6.35 API change +dnl # The dentry argument was deamed unused and dropped in 2.6.36. +dnl # +AC_DEFUN([ZFS_AC_KERNEL_FSYNC_2ARGS], [ + AC_MSG_CHECKING([whether fops->fsync() wants 2 args]) + ZFS_LINUX_TRY_COMPILE([ + #include <linux/fs.h> + ],[ + int (*fsync) (struct file *, int datasync) = NULL; + struct file_operations fops; + + fops.fsync = fsync; + ],[ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_2ARGS_FSYNC, 1, [fops->fsync() want 2 args]) + ],[ + AC_MSG_RESULT(no) + ]) +]) |