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| author | Jiri Slaby <jslaby@suse.cz> | 2010-05-01 23:51:22 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2010-05-10 23:08:17 +0200 |
| commit | 6a727b43be8b005609e893a80af980808012cfdb (patch) | |
| tree | 7e30e015a9da93f049fbe6a27b591313d592b8b6 /include/linux/fs.h | |
| parent | bc6a0cbd576c66995d782331456f68ae63a50af4 (diff) | |
| download | lwn-6a727b43be8b005609e893a80af980808012cfdb.tar.gz lwn-6a727b43be8b005609e893a80af980808012cfdb.zip | |
FS / libfs: Implement simple_write_to_buffer
It will be used in suspend code and serves as an easy wrap around
copy_from_user. Similar to simple_read_from_buffer, it takes care
of transfers with proper lengths depending on available and count
parameters and advances ppos appropriately.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'include/linux/fs.h')
| -rw-r--r-- | include/linux/fs.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index 44f35aea2f1f..948bd2bfb1de 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2362,6 +2362,8 @@ extern void simple_release_fs(struct vfsmount **mount, int *count); extern ssize_t simple_read_from_buffer(void __user *to, size_t count, loff_t *ppos, const void *from, size_t available); +extern ssize_t simple_write_to_buffer(void *to, size_t available, loff_t *ppos, + const void __user *from, size_t count); extern int simple_fsync(struct file *, struct dentry *, int); |