Messages in this thread | | | Date | Tue, 15 Dec 2009 13:35:31 +0100 | From | Jan Kara <> | Subject | Re: linux-next: ext3 tree build warning |
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On Tue 15-12-09 12:58:36, Dmitry Monakhov wrote: > 2009/12/15 Stephen Rothwell <sfr@canb.auug.org.au>: > > Hi Jan, > > > > Today's linux-next build (x86_64 allmodconfig) produced this warning: > > > > fs/quota/dquot.c: In function 'dquot_alloc_inode': > > fs/quota/dquot.c:1521: warning: passing argument 1 of 'mark_all_dquot_dirty' discards qualifiers from pointer target type > > fs/quota/dquot.c:327: note: expected 'struct dquot **' but argument is of type 'struct dquot * const*' > > fs/quota/dquot.c: In function 'dquot_free_inode': > > fs/quota/dquot.c:1649: warning: passing argument 1 of 'mark_all_dquot_dirty' discards qualifiers from pointer target type > > fs/quota/dquot.c:327: note: expected 'struct dquot **' but argument is of type 'struct dquot * const*' > What's why my original patch contained type casts. > In fact i dont understand why {alloc,free}_inode accept pointer to > const struct inode, it's contradicts to normal logic Does it? The 'const' keyword just promises we won't change struct inode. And that is true. We only change structures that are pointed to from the inode. So the code is correct as is.
Honza -- Jan Kara <jack@suse.cz> SUSE Labs, CR
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