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authorAl Viro <viro@zeniv.linux.org.uk>2019-04-04 21:04:13 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2019-04-04 21:04:13 -0400
commit9419a3191dcb27f24478d288abaab697228d28e6 (patch)
tree7fd926e271483ad1270c5440d4839fc3711e31bb /fs/autofs/Kconfig
parent79a3aaa7b82e3106be97842dedfd8429248896e6 (diff)
downloadlinux-9419a3191dcb27f24478d288abaab697228d28e6.tar.bz2
acct_on(): don't mess with freeze protection
What happens there is that we are replacing file->path.mnt of a file we'd just opened with a clone and we need the write count contribution to be transferred from original mount to new one. That's it. We do *NOT* want any kind of freeze protection for the duration of switchover. IOW, we should just use __mnt_{want,drop}_write() for that switchover; no need to bother with mnt_{want,drop}_write() there. Tested-by: Amir Goldstein <amir73il@gmail.com> Reported-by: syzbot+2a73a6ea9507b7112141@syzkaller.appspotmail.com Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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