diff options
| 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/file_table.c | |
| parent | 5accdf82ba25cacefd6c1867f1704beb4d244cdd (diff) | |
| download | lwn-eb04c28288bb0098d0e75d81ba2a575239de71d8.tar.gz lwn-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/file_table.c')
| -rw-r--r-- | fs/file_table.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/file_table.c b/fs/file_table.c index b54bf7fd0b15..701985e4ccda 100644 --- a/fs/file_table.c +++ b/fs/file_table.c @@ -217,7 +217,7 @@ static void drop_file_write_access(struct file *file) return; if (file_check_writeable(file) != 0) return; - mnt_drop_write(mnt); + __mnt_drop_write(mnt); file_release_write(file); } |