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ocfs2_file_write_iter: stop messing with ppos 

it's &iocb->ki_pos; no need to obfuscate.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2015-04-09 07:25:03 -04:00
parent dfea934575
commit 5dc3161cb6
1 changed files with 12 additions and 12 deletions
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24
fs/ocfs2/file.c
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@ -2264,7 +2264,7 @@ static ssize_t ocfs2_file_write_iter(struct kiocb *iocb,
int can_do_direct, has_refcount = 0;
ssize_t written = 0;
size_t count = iov_iter_count(from);
loff_t old_size, *ppos = &iocb->ki_pos;
loff_t old_size;
u32 old_clusters;
struct file *file = iocb->ki_filp;
struct inode *inode = file_inode(file);
@ -2330,7 +2330,7 @@ relock:
}
can_do_direct = direct_io;
ret = ocfs2_prepare_inode_for_write(file, ppos, count, appending,
ret = ocfs2_prepare_inode_for_write(file, &iocb->ki_pos, count, appending,
&can_do_direct, &has_refcount);
if (ret < 0) {
mlog_errno(ret);
@ -2338,7 +2338,7 @@ relock:
}
if (direct_io && !is_sync_kiocb(iocb))
unaligned_dio = ocfs2_is_io_unaligned(inode, count, *ppos);
unaligned_dio = ocfs2_is_io_unaligned(inode, count, iocb->ki_pos);
/*
* We can't complete the direct I/O as requested, fall back to
@ -2374,7 +2374,7 @@ relock:
/* communicate with ocfs2_dio_end_io */
ocfs2_iocb_set_rw_locked(iocb, rw_level);
ret = generic_write_checks(file, ppos, &count);
ret = generic_write_checks(file, &iocb->ki_pos, &count);
if (ret)
goto out_dio;
@ -2382,7 +2382,7 @@ relock:
if (direct_io) {
loff_t endbyte;
ssize_t written_buffered;
written = generic_file_direct_write(iocb, from, *ppos);
written = generic_file_direct_write(iocb, from, iocb->ki_pos);
if (written < 0 || written == count) {
ret = written;
goto out_dio;
@ -2392,7 +2392,7 @@ relock:
* for completing the rest of the request.
*/
count -= written;
written_buffered = generic_perform_write(file, from, *ppos);
written_buffered = generic_perform_write(file, from, iocb->ki_pos);
/*
* If generic_file_buffered_write() returned a synchronous error
* then we want to return the number of bytes which were
@ -2409,14 +2409,14 @@ relock:
* disk and invalidated to preserve the expected O_DIRECT
* semantics.
*/
endbyte = *ppos + written_buffered - 1;
ret = filemap_write_and_wait_range(file->f_mapping, *ppos,
endbyte = iocb->ki_pos + written_buffered - 1;
ret = filemap_write_and_wait_range(file->f_mapping, iocb->ki_pos,
endbyte);
if (ret == 0) {
iocb->ki_pos = *ppos + written_buffered;
iocb->ki_pos += written_buffered;
written += written_buffered;
invalidate_mapping_pages(mapping,
*ppos >> PAGE_CACHE_SHIFT,
iocb->ki_pos >> PAGE_CACHE_SHIFT,
endbyte >> PAGE_CACHE_SHIFT);
} else {
/*
@ -2426,9 +2426,9 @@ relock:
}
} else {
current->backing_dev_info = inode_to_bdi(inode);
written = generic_perform_write(file, from, *ppos);
written = generic_perform_write(file, from, iocb->ki_pos);
if (likely(written >= 0))
iocb->ki_pos = *ppos + written;
iocb->ki_pos = iocb->ki_pos + written;
current->backing_dev_info = NULL;
}