| Message ID | 20150704151200.GA13251@mtj.duckdns.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Sat 04-07-15 11:12:00, Tejun Heo wrote: > Signed-off-by: Tejun Heo <tj@kernel.org> > Suggested-by: Jan Kara <jack@suse.cz> > --- > Hello, > > So, something like this. I'll resend this patch as part of a patch > series once -rc1 drops. Looks good. Thanks! Honza > fs/fs-writeback.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > --- a/fs/fs-writeback.c > +++ b/fs/fs-writeback.c > @@ -700,7 +700,7 @@ void wbc_account_io(struct writeback_con > > /** > * inode_congested - test whether an inode is congested > - * @inode: inode to test for congestion > + * @inode: inode to test for congestion (may be NULL) > * @cong_bits: mask of WB_[a]sync_congested bits to test > * > * Tests whether @inode is congested. @cong_bits is the mask of congestion > @@ -710,6 +710,9 @@ void wbc_account_io(struct writeback_con > * determined by whether the cgwb (cgroup bdi_writeback) for the blkcg > * associated with @inode is congested; otherwise, the root wb's congestion > * state is used. > + * > + * @inode is allowed to be NULL as this function is often called on > + * mapping->host which is NULL for the swapper space. > */ > int inode_congested(struct inode *inode, int cong_bits) > {
--- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -700,7 +700,7 @@ void wbc_account_io(struct writeback_con /** * inode_congested - test whether an inode is congested - * @inode: inode to test for congestion + * @inode: inode to test for congestion (may be NULL) * @cong_bits: mask of WB_[a]sync_congested bits to test * * Tests whether @inode is congested. @cong_bits is the mask of congestion @@ -710,6 +710,9 @@ void wbc_account_io(struct writeback_con * determined by whether the cgwb (cgroup bdi_writeback) for the blkcg * associated with @inode is congested; otherwise, the root wb's congestion * state is used. + * + * @inode is allowed to be NULL as this function is often called on + * mapping->host which is NULL for the swapper space. */ int inode_congested(struct inode *inode, int cong_bits) {
Signed-off-by: Tejun Heo <tj@kernel.org> Suggested-by: Jan Kara <jack@suse.cz> --- Hello, So, something like this. I'll resend this patch as part of a patch series once -rc1 drops. Thanks. fs/fs-writeback.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html