From: Al Viro <viro@ZenIV.linux.org.uk>
To: David Howells <dhowells@redhat.com>
Cc: linux-afs@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 03/24] iov_iter: Add I/O discard iterator
Date: Sat, 20 Oct 2018 06:05:22 +0100 [thread overview]
Message-ID: <20181020050521.GJ32577@ZenIV.linux.org.uk> (raw)
In-Reply-To: <153999785961.866.5674146318200239679.stgit@warthog.procyon.org.uk>
On Sat, Oct 20, 2018 at 02:10:59AM +0100, David Howells wrote:
> @@ -1060,6 +1074,9 @@ void iov_iter_revert(struct iov_iter *i, size_t unroll)
> }
> unroll -= i->iov_offset;
> switch (iov_iter_type(i)) {
> + case ITER_DISCARD:
> + i->iov_offset = 0;
> + return;
... the hell? That makes no sense whatsoever; what, besides this and immediately
preceding part of iov_iter_revert() so much as looks at ->iov_offset for those?
Just have it bugger off before the
if (unroll <= i->iov_offset) {
i->iov_offset -= unroll;
return;
}
bit...
next prev parent reply other threads:[~2018-10-20 5:05 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-20 1:10 [PATCH 00/24] AFS development David Howells
2018-10-20 1:10 ` [PATCH 01/24] iov_iter: Separate type from direction and use accessor functions David Howells
2018-10-20 4:56 ` Al Viro
2018-10-22 13:00 ` David Howells
2018-10-20 1:10 ` [PATCH 02/24] iov_iter: Renumber the ITER_* constants in uio.h David Howells
2018-10-20 4:59 ` Al Viro
2018-10-22 15:54 ` David Howells
2018-10-23 13:20 ` David Howells
2018-10-20 1:10 ` [PATCH 03/24] iov_iter: Add I/O discard iterator David Howells
2018-10-20 5:05 ` Al Viro [this message]
2018-10-22 16:18 ` David Howells
2018-10-20 1:11 ` [PATCH 04/24] afs: Better tracing of protocol errors David Howells
2018-10-20 1:11 ` [PATCH 05/24] afs: Set up the iov_iter before calling afs_extract_data() David Howells
2018-10-20 1:11 ` [PATCH 06/24] afs: Improve FS server rotation error handling David Howells
2018-10-20 1:11 ` [PATCH 07/24] afs: Implement VL server rotation David Howells
2018-10-20 1:11 ` [PATCH 08/24] afs: Fix TTL on VL server and address lists David Howells
2018-10-20 1:11 ` [PATCH 09/24] afs: Handle EIO from delivery function David Howells
2018-10-20 1:11 ` [PATCH 10/24] afs: Add a couple of tracepoints to log I/O errors David Howells
2018-10-20 1:11 ` [PATCH 11/24] afs: Don't invoke the server to read data beyond EOF David Howells
2018-10-20 1:12 ` [PATCH 12/24] afs: Increase to 64-bit volume ID and 96-bit vnode ID for YFS David Howells
2018-10-20 1:12 ` [PATCH 13/24] afs: Commit the status on a new file/dir/symlink David Howells
2018-10-20 1:12 ` [PATCH 14/24] afs: Remove callback details from afs_callback_break struct David Howells
2018-10-20 1:12 ` [PATCH 15/24] afs: Implement the YFS cache manager service David Howells
2018-10-20 1:12 ` [PATCH 16/24] afs: Fix FS.FetchStatus delivery from updating wrong vnode David Howells
2018-10-20 1:12 ` [PATCH 17/24] afs: Calc callback expiry in op reply delivery David Howells
2018-10-20 1:12 ` [PATCH 18/24] afs: Get the target vnode in afs_rmdir() and get a callback on it David Howells
2018-10-20 1:12 ` [PATCH 19/24] afs: Expand data structure fields to support YFS David Howells
2018-10-20 1:13 ` [PATCH 20/24] afs: Implement YFS support in the fs client David Howells
2018-10-20 1:13 ` [PATCH 21/24] afs: Allow dumping of server cursor on operation failure David Howells
2018-10-20 1:13 ` [PATCH 22/24] afs: Eliminate the address pointer from the address list cursor David Howells
2018-10-20 1:13 ` [PATCH 23/24] afs: Fix callback handling David Howells
2018-10-20 1:13 ` [PATCH 24/24] afs: Probe multiple fileservers simultaneously David Howells
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