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| author | James Morris <james.l.morris@oracle.com> | 2014-11-19 13:36:07 +0300 |
|---|---|---|
| committer | James Morris <james.l.morris@oracle.com> | 2014-11-19 13:36:07 +0300 |
| commit | a6aacbde406eeb6f8fc218b2c6172825f5e73fcf (patch) | |
| tree | b79e1a17c38090915085f0dbb501a0970cb79b28 /fs/read_write.c | |
| parent | b10778a00d40b3d9fdaaf5891e802794781ff71c (diff) | |
| parent | 6fb5032ebb1c5b852461d64ee33829081de8ca61 (diff) | |
| download | linux-a6aacbde406eeb6f8fc218b2c6172825f5e73fcf.tar.xz | |
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity into next
Diffstat (limited to 'fs/read_write.c')
| -rw-r--r-- | fs/read_write.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/fs/read_write.c b/fs/read_write.c index 009d8542a889..f45b2ae5d5f1 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -412,6 +412,23 @@ ssize_t new_sync_read(struct file *filp, char __user *buf, size_t len, loff_t *p EXPORT_SYMBOL(new_sync_read); +ssize_t __vfs_read(struct file *file, char __user *buf, size_t count, + loff_t *pos) +{ + ssize_t ret; + + if (file->f_op->read) + ret = file->f_op->read(file, buf, count, pos); + else if (file->f_op->aio_read) + ret = do_sync_read(file, buf, count, pos); + else if (file->f_op->read_iter) + ret = new_sync_read(file, buf, count, pos); + else + ret = -EINVAL; + + return ret; +} + ssize_t vfs_read(struct file *file, char __user *buf, size_t count, loff_t *pos) { ssize_t ret; @@ -426,12 +443,7 @@ ssize_t vfs_read(struct file *file, char __user *buf, size_t count, loff_t *pos) ret = rw_verify_area(READ, file, pos, count); if (ret >= 0) { count = ret; - if (file->f_op->read) - ret = file->f_op->read(file, buf, count, pos); - else if (file->f_op->aio_read) - ret = do_sync_read(file, buf, count, pos); - else - ret = new_sync_read(file, buf, count, pos); + ret = __vfs_read(file, buf, count, pos); if (ret > 0) { fsnotify_access(file); add_rchar(current, ret); |