From: Yifan Zhao <stopire@gmail.com>
To: linux-erofs@lists.ozlabs.org
Cc: xiang@kernel.org
Subject: [PATCH v2 1/4] erofs-utils: lib: fix short write retries
Date: Mon, 21 Sep 2026 21:35:32 +0800 [thread overview]
Message-ID: <20260921133535.2381246-1-stopire@gmail.com> (raw)
Retry with only the remaining byte count in both the pwrite() and
pwrite64() paths.
Assisted-by: Codex:gpt-6-astra
Signed-off-by: Yifan Zhao <stopire@gmail.com>
---
lib/io.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/io.c b/lib/io.c
index 5c5449f..f62129f 100644
--- a/lib/io.c
+++ b/lib/io.c
@@ -75,9 +75,9 @@ ssize_t erofs_io_pwrite(struct erofs_vfile *vf, const void *buf,
pos += vf->offset;
do {
#ifdef HAVE_PWRITE64
- ret = pwrite64(vf->fd, buf, len, (off64_t)pos);
+ ret = pwrite64(vf->fd, buf, len - written, (off64_t)pos);
#else
- ret = pwrite(vf->fd, buf, len, (off_t)pos);
+ ret = pwrite(vf->fd, buf, len - written, (off_t)pos);
#endif
if (ret <= 0) {
if (!ret)
--
2.55.0
next reply other threads:[~2026-09-21 13:35 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-21 13:35 Yifan Zhao [this message]
2026-09-21 13:35 ` [PATCH v2 2/4] erofs-utils: lib: fix large chunk index writes Yifan Zhao
2026-09-21 13:35 ` [PATCH v2 3/4] erofs-utils: mkfs: add file-delta framework Yifan Zhao
2026-09-21 13:35 ` [PATCH v2 4/4] erofs-utils: mkfs: support dm-persistent file deltas Yifan Zhao
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260921133535.2381246-1-stopire@gmail.com \
--to=stopire@gmail.com \
--cc=linux-erofs@lists.ozlabs.org \
--cc=xiang@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox