The patch titled
NeilBrown <neilb@xxxxxxx>
has been removed from the -mm tree. Its filename was
make-sure-readv-stops-reading-when-it-hits-end-of-file.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: NeilBrown <neilb@xxxxxxx>
The do_loop_readv_writev implementation of readv breaks out of the loop as
soon as a single read request didn't fill it's buffer:
if (nr != len)
break;
The generic_file_aio_read version doesn't. So if it hits EOF before the end
of the list of buffers, it will try again on the next buffer. If the file was
extended in the mean time, this will produce a bad result.
Signed-off-by: Neil Brown <neilb@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/filemap.c | 2 ++
1 file changed, 2 insertions(+)
diff -puN mm/filemap.c~make-sure-readv-stops-reading-when-it-hits-end-of-file mm/filemap.c
--- a/mm/filemap.c~make-sure-readv-stops-reading-when-it-hits-end-of-file
+++ a/mm/filemap.c
@@ -1219,6 +1219,8 @@ generic_file_aio_read(struct kiocb *iocb
retval = retval ?: desc.error;
break;
}
+ if (desc.count > 0)
+ break;
}
}
out:
_
Patches currently in -mm which might be from neilb@xxxxxxx are
origin.patch
mm-revert-kernel_ds-buffered-write-optimisation.patch
fix-read-truncate-race.patch
knfsd-exportfs-add-exportfsh-header.patch
knfsd-exportfs-remove-iget-abuse.patch
knfsd-exportfs-add-procedural-interface-for-nfsd.patch
knfsd-exportfs-remove-call-macro.patch
knfsd-exportfs-untangle-isdir-logic-in-find_exported_dentry.patch
knfsd-exportfs-move-acceptable-check-into-find_acceptable_alias.patch
knfsd-exportfs-add-find_disconnected_root-helper.patch
knfsd-exportfs-split-out-reconnecting-a-dentry-from-find_exported_dentry.patch
nfsd-warning-fix.patch
knfsd-lockd-nfsd4-use-same-grace-period-for-lockd-and-nfsd4.patch
knfsd-nfsd4-fix-nfsv4-filehandle-size-units-confusion.patch
knfsd-nfsd4-silence-a-compiler-warning-in-acl-code.patch
knfsd-nfsd4-fix-enc_stateid_sz-for-nfsd-callbacks.patch
knfsd-nfsd4-fix-handling-of-acl-errrors.patch
knfsd-nfsd-remove-unused-header-interfaceh.patch
knfsd-nfsd4-vary-maximum-delegation-limit-based-on-ram-size.patch
knfsd-nfsd4-dont-delegate-files-that-have-had-conflicts.patch
knfsd-nfsd-make-all-exp_finding-functions-return-errnos-on-err.patch
knfsd-nfsd4-build-rpcsec_gss-whenever-nfsd4-is-built.patch
knfsd-nfsd4-store-pseudoflavor-in-request.patch
knfsd-nfsd4-parse-secinfo-information-in-exports-downcall.patch
knfsd-nfsd4-simplify-exp_pseudoroot-arguments.patch
knfsd-nfsd-remove-superfluous-assignment-from-nfsd_lookup.patch
knfsd-nfsd-provide-export-lookup-wrappers-which-take-a-svc_rqst.patch
knfsd-nfsd-set-rq_client-to-ip-address-determined-domain.patch
knfsd-nfsd-use-ip-address-based-domain-in-secinfo-case.patch
knfsd-nfsd-use-ip-address-based-domain-in-secinfo-case-fix.patch
knfsd-nfsd-factor-nfsd_lookup-into-2-pieces.patch
knfsd-nfsd4-return-nfserr_wrongsec.patch
knfsd-nfsd4-make-readonly-access-depend-on-pseudoflavor.patch
knfsd-nfsd-factor-out-code-from-show_expflags.patch
knfsd-nfsd-display-export-secinfo-information.patch
knfsd-rpc-add-gss-krb5-and-spkm3-oid-values.patch
knfsd-nfsd4-implement-secinfo.patch
knfsd-nfsd4-secinfo-handling-without-secinfo=-option.patch
knfsd-nfsd-allow-auth_sys-nlm-on-rpcsec_gss-exports.patch
knfsd-nfsd-enforce-per-flavor-id-squashing.patch
use-menuconfig-objects-ii-md.patch
md-improve-message-about-invalid-superblock-during-autodetect.patch
md-improve-the-is_mddev_idle-test-fix.patch
md-check-that-internal-bitmap-does-not-overlap-other-data.patch
md-change-bitmap_unplug-and-others-to-void-functions.patch
raid5-add-the-stripe_queue-object-for-tracking-raid.patch
raid5-add-the-stripe_queue-object-for-tracking-raid-io-requests-take2.patch
raid5-use-stripe_queues-to-prioritize-the-most.patch
fs-introduce-vfs_path_lookup.patch
sunrpc-use-vfs_path_lookup.patch
nfsctl-use-vfs_path_lookup.patch
fs-mark-link_path_walk-static.patch
fs-remove-path_walk-export.patch
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