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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2024-03-02 15:30:33 -0500 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-03-13 21:22:26 -0400 |
| commit | d64547999c591c47bfac279fa4027bdbd29c7ea0 (patch) | |
| tree | 7365075ce7f4a064fdf56495e5392558acf92562 | |
| parent | ba81523eaac3df20ea884603bd67a74089900814 (diff) | |
| download | vfs-d64547999c591c47bfac279fa4027bdbd29c7ea0.tar.gz | |
bcachefs: copy_(to|from)_user_errcode()
we've got some helpers that return errors sanely, move them to a more
common location for use in fs-ioctl.c
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
| -rw-r--r-- | fs/bcachefs/chardev.c | 6 | ||||
| -rw-r--r-- | fs/bcachefs/util.h | 16 |
2 files changed, 16 insertions, 6 deletions
diff --git a/fs/bcachefs/chardev.c b/fs/bcachefs/chardev.c index b584d78cb39cc..38defa19d52d7 100644 --- a/fs/bcachefs/chardev.c +++ b/fs/bcachefs/chardev.c @@ -22,12 +22,6 @@ #include <linux/slab.h> #include <linux/uaccess.h> -__must_check -static int copy_to_user_errcode(void __user *to, const void *from, unsigned long n) -{ - return copy_to_user(to, from, n) ? -EFAULT : 0; -} - /* returns with ref on ca->ref */ static struct bch_dev *bch2_device_lookup(struct bch_fs *c, u64 dev, unsigned flags) diff --git a/fs/bcachefs/util.h b/fs/bcachefs/util.h index b3d3a7349814c..adff17f6f524b 100644 --- a/fs/bcachefs/util.h +++ b/fs/bcachefs/util.h @@ -848,4 +848,20 @@ static inline bool qstr_eq(const struct qstr l, const struct qstr r) void bch2_darray_str_exit(darray_str *); int bch2_split_devs(const char *, darray_str *); +#ifdef __KERNEL__ + +__must_check +static inline int copy_to_user_errcode(void __user *to, const void *from, unsigned long n) +{ + return copy_to_user(to, from, n) ? -EFAULT : 0; +} + +__must_check +static inline int copy_from_user_errcode(void *to, const void __user *from, unsigned long n) +{ + return copy_from_user(to, from, n) ? -EFAULT : 0; +} + +#endif + #endif /* _BCACHEFS_UTIL_H */ |