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| author | Alexander Viro <viro@parcelfarce.linux.theplanet.co.uk> | 2004-08-05 03:39:48 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2004-08-05 03:39:48 -0700 |
| commit | 65d33ad6e2e36e893079523114d1d579ad96ab76 (patch) | |
| tree | 5a843656a575d83306b2a21295eadc968d127e2a /include | |
| parent | 1cc9f865f84b3beab883ccaeb6a61a65421a97b1 (diff) | |
| download | history-65d33ad6e2e36e893079523114d1d579ad96ab76.tar.gz | |
[PATCH] simple_read_buffer() helper function
A number of drivers or special virtual devices really just want their
"read()" function to populate user space from some internal buffer.
This adds such a helper function - "simple_read_from_buffer()" - and
converts several ->read() instances to use it.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
| -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 7f64f2b2cadaee..f8677c13b4a8f1 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1527,6 +1527,8 @@ extern int simple_fill_super(struct super_block *, int, struct tree_descr *); extern int simple_pin_fs(char *name, struct vfsmount **mount, int *count); extern void simple_release_fs(struct vfsmount **mount, int *count); +extern ssize_t simple_read_from_buffer(void __user *, size_t, loff_t *, void *, size_t); + extern int inode_change_ok(struct inode *, struct iattr *); extern int __must_check inode_setattr(struct inode *, struct iattr *); |