Subject: + hfsplus-fix-remount-issue.patch added to -mm tree
To: slava@xxxxxxxxxxx,hch@xxxxxxxxxxxxx,htl10@xxxxxxxxxxxxxxxxxxxxx,viro@xxxxxxxxxxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Tue, 04 Feb 2014 14:33:36 -0800
The patch titled
Subject: hfsplus: fix remount issue
has been added to the -mm tree. Its filename is
hfsplus-fix-remount-issue.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/hfsplus-fix-remount-issue.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/hfsplus-fix-remount-issue.patch
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From: Vyacheslav Dubeyko <slava@xxxxxxxxxxx>
Subject: hfsplus: fix remount issue
O HFS+ driver has small issue with remount option. Namely, for example,
you are unable to remount from RO mode into RW mode by means of command
"mount -o remount,rw /dev/loop0 /mnt/hfsplus". Trying to execute sequence
of commands is resulted with error message:
mount /dev/loop0 /mnt/hfsplus
mount -o remount,ro /dev/loop0 /mnt/hfsplus
mount -o remount,rw /dev/loop0 /mnt/hfsplus
mount: you must specify the filesystem type
mount -t hfsplus -o remount,rw /dev/loop0 /mnt/hfsplus
mount: /mnt/hfsplus not mounted or bad option
The reason of such issue is failure of mount syscall:
mount("/dev/loop0", "/mnt/hfsplus", 0x2282a60, MS_MGC_VAL|MS_REMOUNT, NULL) = -1 EINVAL (Invalid argument)
Namely, hfsplus_parse_options_remount() method receives empty "input"
argument and return false in such case. As a result, hfsplus_remount()
returns -EINVAL error code.
This patch fixes the issue by means of return true for the case of empty
"input" argument in hfsplus_parse_options_remount() method.
Signed-off-by: Vyacheslav Dubeyko <slava@xxxxxxxxxxx>
Cc: Hin-Tak Leung <htl10@xxxxxxxxxxxxxxxxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/hfsplus/options.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN fs/hfsplus/options.c~hfsplus-fix-remount-issue fs/hfsplus/options.c
--- a/fs/hfsplus/options.c~hfsplus-fix-remount-issue
+++ a/fs/hfsplus/options.c
@@ -76,7 +76,7 @@ int hfsplus_parse_options_remount(char *
int token;
if (!input)
- return 0;
+ return 1;
while ((p = strsep(&input, ",")) != NULL) {
if (!*p)
_
Patches currently in -mm which might be from slava@xxxxxxxxxxx are
hfsplus-add-necessary-declarations-for-journal-replay.patch
hfsplus-rework-hfsplus_submit_bio-method.patch
hfsplus-implement-init-destroy-journal-object-functionality.patch
hfsplus-implement-functionality-for-hfsplus_journal_need_init-flag.patch
hfsplus-implement-norecovery-mount-option-support.patch
hfsplus-fix-remount-issue.patch
hfsplus-implement-check-consistency-of-journal-log-file.patch
hfsplus-introduce-descriptor-of-block-list-buffer.patch
hfsplus-implement-get-and-verify-block-list-header-functionality.patch
hfsplus-implement-functionality-of-getting-transactions-block-info.patch
hfsplus-implement-functionality-of-journal-log-wrapping.patch
hfsplus-implement-functionality-of-transactions-block-check.patch
hfsplus-implement-replay-transactions-block-functionality.patch
hfsplus-implement-replay-journal-functionality.patch
hfsplus-integrate-journal-replay-support-into-driver.patch
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