diff options
author | Ingo Molnar <mingo@elte.hu> | 2009-01-11 15:34:05 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-01-11 15:34:05 +0100 |
commit | d19b85db9d5c44a4c21dcb10d6fbadaa4425ab2a (patch) | |
tree | 250be7a5a29069f7d1f4524fa45ab0e988833025 /fs/debugfs | |
parent | 490dea45d00f01847ebebd007685d564aaf2cd98 (diff) | |
parent | c59765042f53a79a7a65585042ff463b69cb248c (diff) |
Merge commit 'v2.6.29-rc1' into timers/urgent
Diffstat (limited to 'fs/debugfs')
-rw-r--r-- | fs/debugfs/file.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c index 159a5efd6a8..33a90120f6a 100644 --- a/fs/debugfs/file.c +++ b/fs/debugfs/file.c @@ -294,6 +294,38 @@ struct dentry *debugfs_create_x32(const char *name, mode_t mode, } EXPORT_SYMBOL_GPL(debugfs_create_x32); + +static int debugfs_size_t_set(void *data, u64 val) +{ + *(size_t *)data = val; + return 0; +} +static int debugfs_size_t_get(void *data, u64 *val) +{ + *val = *(size_t *)data; + return 0; +} +DEFINE_SIMPLE_ATTRIBUTE(fops_size_t, debugfs_size_t_get, debugfs_size_t_set, + "%llu\n"); /* %llu and %zu are more or less the same */ + +/** + * debugfs_create_size_t - create a debugfs file that is used to read and write an size_t value + * @name: a pointer to a string containing the name of the file to create. + * @mode: the permission that the file should have + * @parent: a pointer to the parent dentry for this file. This should be a + * directory dentry if set. If this parameter is %NULL, then the + * file will be created in the root of the debugfs filesystem. + * @value: a pointer to the variable that the file should read to and write + * from. + */ +struct dentry *debugfs_create_size_t(const char *name, mode_t mode, + struct dentry *parent, size_t *value) +{ + return debugfs_create_file(name, mode, parent, value, &fops_size_t); +} +EXPORT_SYMBOL_GPL(debugfs_create_size_t); + + static ssize_t read_file_bool(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { |