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authorChristoph Hellwig <hch@lst.de>2021-02-24 12:02:45 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2021-02-24 13:38:28 -0800
commit826ea860bc4d119731026655c383c7773c9d2dad (patch)
treeb2b3eccd816c71391d69056639f8128bbe762741 /mm/filemap.c
parent87fa0f3eb267eed966ee194907bc15376c1b758f (diff)
mm/filemap: simplify generic_file_read_iter
Avoid the pointless goto out just for returning retval. Link: https://lkml.kernel.org/r/20210122160140.223228-19-willy@infradead.org Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Reviewed-by: Kent Overstreet <kent.overstreet@gmail.com> Cc: Miaohe Lin <linmiaohe@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/filemap.c')
-rw-r--r--mm/filemap.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/mm/filemap.c b/mm/filemap.c
index 28c290da22c1..820d81901eae 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -2543,7 +2543,7 @@ generic_file_read_iter(struct kiocb *iocb, struct iov_iter *iter)
ssize_t retval = 0;
if (!count)
- goto out; /* skip atime */
+ return 0; /* skip atime */
if (iocb->ki_flags & IOCB_DIRECT) {
struct file *file = iocb->ki_filp;
@@ -2561,7 +2561,7 @@ generic_file_read_iter(struct kiocb *iocb, struct iov_iter *iter)
iocb->ki_pos,
iocb->ki_pos + count - 1);
if (retval < 0)
- goto out;
+ return retval;
}
file_accessed(file);
@@ -2585,12 +2585,10 @@ generic_file_read_iter(struct kiocb *iocb, struct iov_iter *iter)
*/
if (retval < 0 || !count || iocb->ki_pos >= size ||
IS_DAX(inode))
- goto out;
+ return retval;
}
- retval = filemap_read(iocb, iter, retval);
-out:
- return retval;
+ return filemap_read(iocb, iter, retval);
}
EXPORT_SYMBOL(generic_file_read_iter);