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| author | Jean-Sébastien Pédron <dumbbell@FreeBSD.org> | 2022-12-30 10:00:57 +0000 |
|---|---|---|
| committer | Jean-Sébastien Pédron <dumbbell@FreeBSD.org> | 2023-02-16 11:55:11 +0000 |
| commit | 7fdbae1bd14ac5ee61563d63b23080f45a5be459 (patch) | |
| tree | c06e1ce946ddbb6cbd6f68841dc63bd5c5016179 | |
| parent | ec8401ffaeb399f8d02db237e6c2390c1e3f7bf5 (diff) | |
| download | src-7fdbae1bd14ac5ee61563d63b23080f45a5be459.tar.gz src-7fdbae1bd14ac5ee61563d63b23080f45a5be459.zip | |
lindebugfs: Add `debugfs_create_atomic_t()`
Reviewed by: jfree
Approved by: jfree
Differential Revision: https://reviews.freebsd.org/D37915
(cherry picked from commit f2044a3030fb2a657e59dee4b7e5865acff936bd)
| -rw-r--r-- | sys/compat/lindebugfs/lindebugfs.c | 30 | ||||
| -rw-r--r-- | sys/compat/linuxkpi/common/include/linux/debugfs.h | 2 |
2 files changed, 32 insertions, 0 deletions
diff --git a/sys/compat/lindebugfs/lindebugfs.c b/sys/compat/lindebugfs/lindebugfs.c index b72ceb5e0be9..11a6dac579ac 100644 --- a/sys/compat/lindebugfs/lindebugfs.c +++ b/sys/compat/lindebugfs/lindebugfs.c @@ -69,6 +69,7 @@ __FBSDID("$FreeBSD$"); #include <compat/linux/linux_util.h> #include <fs/pseudofs/pseudofs.h> +#include <asm/atomic.h> #include <linux/compat.h> #include <linux/debugfs.h> #include <linux/fs.h> @@ -424,6 +425,35 @@ debugfs_create_ulong(const char *name, umode_t mode, struct dentry *parent, unsi } +static int +debugfs_atomic_t_get(void *data, uint64_t *value) +{ + atomic_t *atomic_data = data; + *value = atomic_read(atomic_data); + return (0); +} + +static int +debugfs_atomic_t_set(void *data, uint64_t value) +{ + atomic_t *atomic_data = data; + atomic_set(atomic_data, (int)value); + return (0); +} + +DEFINE_DEBUGFS_ATTRIBUTE(fops_atomic_t, debugfs_atomic_t_get, debugfs_atomic_t_set, "%d\n"); +DEFINE_DEBUGFS_ATTRIBUTE(fops_atomic_t_ro, debugfs_atomic_t_get, NULL, "%d\n"); +DEFINE_DEBUGFS_ATTRIBUTE(fops_atomic_t_wo, NULL, debugfs_atomic_t_set, "%d\n"); + +void +debugfs_create_atomic_t(const char *name, umode_t mode, struct dentry *parent, atomic_t *value) +{ + + debugfs_create_mode_unsafe(name, mode, parent, value, &fops_atomic_t, + &fops_atomic_t_ro, &fops_atomic_t_wo); +} + + static ssize_t fops_blob_read(struct file *filp, char __user *ubuf, size_t read_size, loff_t *ppos) { diff --git a/sys/compat/linuxkpi/common/include/linux/debugfs.h b/sys/compat/linuxkpi/common/include/linux/debugfs.h index 4c9f52a0bc0f..422b96006b04 100644 --- a/sys/compat/linuxkpi/common/include/linux/debugfs.h +++ b/sys/compat/linuxkpi/common/include/linux/debugfs.h @@ -84,6 +84,8 @@ void debugfs_create_u8(const char *name, umode_t mode, struct dentry *parent, uint8_t *value); void debugfs_create_ulong(const char *name, umode_t mode, struct dentry *parent, unsigned long *value); +void debugfs_create_atomic_t(const char *name, umode_t mode, struct dentry *parent, + atomic_t *value); struct dentry *debugfs_create_blob(const char *name, umode_t mode, struct dentry *parent, struct debugfs_blob_wrapper *value); |