[PATCH 5.15 120/177] gfs2: Minor retry logic cleanup

Greg Kroah-Hartman
2022-05-04T17:24:03Z

From: Andreas Gruenbacher <agruenba@redhat.com>

[ Upstream commit 124c458a401a2497f796e4f2d6cafac6edbea8e9 ]

Clean up the retry logic in the read and write functions somewhat.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/gfs2/file.c | 34 ++++++++++++++++------------------
1 file changed, 16 insertions(+), 18 deletions(-)

diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index 97e2793e22d7..964c19e27ce2 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -858,9 +858,9 @@ static ssize_t gfs2_file_direct_read(struct kiocb *iocb, struct iov_iter *to,
leftover = fault_in_iov_iter_writeable(to, window_size);
gfs2_holder_disallow_demote(gh);
if (leftover != window_size) {
- if (!gfs2_holder_queued(gh))
- goto retry;
- goto retry_under_glock;
+ if (gfs2_holder_queued(gh))
+ goto retry_under_glock;
+ goto retry;
}
}
if (gfs2_holder_queued(gh))
@@ -927,9 +927,9 @@ static ssize_t gfs2_file_direct_write(struct kiocb *iocb, struct iov_iter *from,
leftover = fault_in_iov_iter_readable(from, window_size);
gfs2_holder_disallow_demote(gh);
if (leftover != window_size) {
- if (!gfs2_holder_queued(gh))
- goto retry;
- goto retry_under_glock;
+ if (gfs2_holder_queued(gh))
+ goto retry_under_glock;
+ goto retry;
}
}
out:
@@ -996,12 +996,11 @@ static ssize_t gfs2_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
leftover = fault_in_iov_iter_writeable(to, window_size);
gfs2_holder_disallow_demote(&gh);
if (leftover != window_size) {
- if (!gfs2_holder_queued(&gh)) {
- if (written)
- goto out_uninit;
- goto retry;
- }
- goto retry_under_glock;
+ if (gfs2_holder_queued(&gh))
+ goto retry_under_glock;
+ if (written)
+ goto out_uninit;
+ goto retry;
}
}
if (gfs2_holder_queued(&gh))
@@ -1075,12 +1074,11 @@ static ssize_t gfs2_file_buffered_write(struct kiocb *iocb,
gfs2_holder_disallow_demote(gh);
if (leftover != window_size) {
from->count = min(from->count, window_size - leftover);
- if (!gfs2_holder_queued(gh)) {
- if (read)
- goto out_uninit;
- goto retry;
- }
- goto retry_under_glock;
+ if (gfs2_holder_queued(gh))
+ goto retry_under_glock;
+ if (read)
+ goto out_uninit;
+ goto retry;
}
}
out_unlock:
--
2.35.1