@@ -1891,8 +1891,6 @@ static ssize_t ceph_write_iter(struct kiocb *iocb, struct iov_iter *from)
* can not run at the same time
*/
written = generic_perform_write(iocb, from);
- if (likely(written >= 0))
- iocb->ki_pos = pos + written;
ceph_end_io_write(inode);
}
@@ -289,12 +289,9 @@ static ssize_t ext4_buffered_write_iter(struct kiocb *iocb,
out:
inode_unlock(inode);
- if (likely(ret > 0)) {
- iocb->ki_pos += ret;
- ret = generic_write_sync(iocb, ret);
- }
-
- return ret;
+ if (unlikely(ret <= 0))
+ return ret;
+ return generic_write_sync(iocb, ret);
}
static ssize_t ext4_handle_inode_extension(struct inode *inode, loff_t offset,
@@ -4520,7 +4520,6 @@ static ssize_t f2fs_buffered_write_iter(struct kiocb *iocb,
ret = generic_perform_write(iocb, from);
if (ret > 0) {
- iocb->ki_pos += ret;
f2fs_update_iostat(F2FS_I_SB(inode), inode,
APP_BUFFERED_IO, ret);
}
@@ -655,7 +655,6 @@ ssize_t nfs_file_write(struct kiocb *iocb, struct iov_iter *from)
goto out;
written = result;
- iocb->ki_pos += written;
nfs_add_stats(inode, NFSIOS_NORMALWRITTENBYTES, written);
if (mntflags & NFS_MOUNT_WRITE_EAGER) {
@@ -3957,7 +3957,10 @@ ssize_t generic_perform_write(struct kiocb *iocb, struct iov_iter *i)
balance_dirty_pages_ratelimited(mapping);
} while (iov_iter_count(i));
- return written ? written : status;
+ if (!written)
+ return status;
+ iocb->ki_pos += written;
+ return written;
}
EXPORT_SYMBOL(generic_perform_write);
@@ -4034,7 +4037,6 @@ ssize_t __generic_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
endbyte = pos + status - 1;
err = filemap_write_and_wait_range(mapping, pos, endbyte);
if (err == 0) {
- iocb->ki_pos = endbyte + 1;
written += status;
invalidate_mapping_pages(mapping,
pos >> PAGE_SHIFT,
@@ -4047,8 +4049,6 @@ ssize_t __generic_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
}
} else {
written = generic_perform_write(iocb, from);
- if (likely(written > 0))
- iocb->ki_pos += written;
}
out:
return written ? written : err;