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author | Ben Dooks <ben-linux@fluff.org> | 2008-07-15 20:19:14 +0100 |
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committer | Ben Dooks <ben-linux@fluff.org> | 2008-07-15 20:19:14 +0100 |
commit | 0c17e4ceedd35c78b1c7413dbd16279a350be6bc (patch) | |
tree | 313b3b9ca04727f3704464e01d8dd97da1dd534b /fs/libfs.c | |
parent | 19c1d6a34abf73d0baf8e325d018c920fa78dddc (diff) | |
parent | b9d2252c1e44fa83a4e65fdc9eb93db6297c55af (diff) | |
download | kernel_samsung_smdk4412-0c17e4ceedd35c78b1c7413dbd16279a350be6bc.zip kernel_samsung_smdk4412-0c17e4ceedd35c78b1c7413dbd16279a350be6bc.tar.gz kernel_samsung_smdk4412-0c17e4ceedd35c78b1c7413dbd16279a350be6bc.tar.bz2 |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-rmk
Diffstat (limited to 'fs/libfs.c')
-rw-r--r-- | fs/libfs.c | 28 |
1 files changed, 28 insertions, 0 deletions
@@ -512,6 +512,20 @@ void simple_release_fs(struct vfsmount **mount, int *count) mntput(mnt); } +/** + * simple_read_from_buffer - copy data from the buffer to user space + * @to: the user space buffer to read to + * @count: the maximum number of bytes to read + * @ppos: the current position in the buffer + * @from: the buffer to read from + * @available: the size of the buffer + * + * The simple_read_from_buffer() function reads up to @count bytes from the + * buffer @from at offset @ppos into the user space address starting at @to. + * + * On success, the number of bytes read is returned and the offset @ppos is + * advanced by this number, or negative value is returned on error. + **/ ssize_t simple_read_from_buffer(void __user *to, size_t count, loff_t *ppos, const void *from, size_t available) { @@ -528,6 +542,20 @@ ssize_t simple_read_from_buffer(void __user *to, size_t count, loff_t *ppos, return count; } +/** + * memory_read_from_buffer - copy data from the buffer + * @to: the kernel space buffer to read to + * @count: the maximum number of bytes to read + * @ppos: the current position in the buffer + * @from: the buffer to read from + * @available: the size of the buffer + * + * The memory_read_from_buffer() function reads up to @count bytes from the + * buffer @from at offset @ppos into the kernel space address starting at @to. + * + * On success, the number of bytes read is returned and the offset @ppos is + * advanced by this number, or negative value is returned on error. + **/ ssize_t memory_read_from_buffer(void *to, size_t count, loff_t *ppos, const void *from, size_t available) { |