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| author | Jan Kara <jack@suse.cz> | 2012-06-12 16:20:35 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-07-31 09:40:38 +0400 |
| commit | eb04c28288bb0098d0e75d81ba2a575239de71d8 (patch) | |
| tree | 82912fd7c78be269560a8af7d8516918c279255b /fs/inode.c | |
| parent | 5accdf82ba25cacefd6c1867f1704beb4d244cdd (diff) | |
| download | linux-eb04c28288bb0098d0e75d81ba2a575239de71d8.tar.gz linux-eb04c28288bb0098d0e75d81ba2a575239de71d8.tar.bz2 linux-eb04c28288bb0098d0e75d81ba2a575239de71d8.zip | |
fs: Add freezing handling to mnt_want_write() / mnt_drop_write()
Most of places where we want freeze protection coincides with the places where
we also have remount-ro protection. So make mnt_want_write() and
mnt_drop_write() (and their _file alternative) prevent freezing as well.
For the few cases that are really interested only in remount-ro protection
provide new function variants.
BugLink: https://bugs.launchpad.net/bugs/897421
Tested-by: Kamal Mostafa <kamal@canonical.com>
Tested-by: Peter M. Petrakis <peter.petrakis@canonical.com>
Tested-by: Dann Frazier <dann.frazier@canonical.com>
Tested-by: Massimo Morana <massimo.morana@canonical.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/inode.c')
| -rw-r--r-- | fs/inode.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/inode.c b/fs/inode.c index 775cbabd4fa5..006c85ca06eb 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -1660,11 +1660,11 @@ int file_update_time(struct file *file) return 0; /* Finally allowed to write? Takes lock. */ - if (mnt_want_write_file(file)) + if (__mnt_want_write_file(file)) return 0; ret = update_time(inode, &now, sync_it); - mnt_drop_write_file(file); + __mnt_drop_write_file(file); return ret; } |