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netfs: Fix netfs_read_to_pagecache() to pause on subreq failure

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Fix netfs_read_to_pagecache() so that it pauses the generation of new
subrequests if an already-issued subrequest fails.

Fixes: ee4cdf7ba8 ("netfs: Speed up buffered reading")
Closes: https://sashiko.dev/#/patchset/20260425125426.3855807-1-dhowells%40redhat.com
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://patch.msgid.link/20260512123404.719402-5-dhowells@redhat.com
cc: Paulo Alcantara <pc@manguebit.org>
cc: netfs@lists.linux.dev
cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
David Howells 2026-05-12 13:33:41 +01:00 committed by Christian Brauner
parent b5782e2d46
commit 8a8c0cfdf4
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1 changed files with 5 additions and 0 deletions
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5
fs/netfs/buffered_read.c
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@ -300,6 +300,11 @@ static void netfs_read_to_pagecache(struct netfs_io_request *rreq,
}
netfs_issue_read(rreq, subreq);
if (test_bit(NETFS_RREQ_PAUSE, &rreq->flags))
netfs_wait_for_paused_read(rreq);
if (test_bit(NETFS_RREQ_FAILED, &rreq->flags))
break;
cond_resched();
} while (size > 0);