* [PATCH] xfs: remove support for untagged lookups in xfs_icwalk* @ 2021-08-13 8:16 Christoph Hellwig 2021-08-13 16:26 ` Darrick J. Wong 0 siblings, 1 reply; 3+ messages in thread From: Christoph Hellwig @ 2021-08-13 8:16 UTC (permalink / raw) To: linux-xfs; +Cc: Dan Carpenter With quotaoff not allowing disabling of accounting there is no need for untagged lookups in this code, so remove the dead leftovers. Repoted-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Christoph Hellwig <hch@lst.de> --- fs/xfs/xfs_icache.c | 39 ++++----------------------------------- 1 file changed, 4 insertions(+), 35 deletions(-) diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c index e7e69e55b7680a..f5a52ec084842d 100644 --- a/fs/xfs/xfs_icache.c +++ b/fs/xfs/xfs_icache.c @@ -43,15 +43,6 @@ enum xfs_icwalk_goal { XFS_ICWALK_RECLAIM = XFS_ICI_RECLAIM_TAG, }; -#define XFS_ICWALK_NULL_TAG (-1U) - -/* Compute the inode radix tree tag for this goal. */ -static inline unsigned int -xfs_icwalk_tag(enum xfs_icwalk_goal goal) -{ - return goal < 0 ? XFS_ICWALK_NULL_TAG : goal; -} - static int xfs_icwalk(struct xfs_mount *mp, enum xfs_icwalk_goal goal, struct xfs_icwalk *icw); static int xfs_icwalk_ag(struct xfs_perag *pag, @@ -1676,22 +1667,14 @@ xfs_icwalk_ag( nr_found = 0; do { struct xfs_inode *batch[XFS_LOOKUP_BATCH]; - unsigned int tag = xfs_icwalk_tag(goal); int error = 0; int i; rcu_read_lock(); - if (tag == XFS_ICWALK_NULL_TAG) - nr_found = radix_tree_gang_lookup(&pag->pag_ici_root, - (void **)batch, first_index, - XFS_LOOKUP_BATCH); - else - nr_found = radix_tree_gang_lookup_tag( - &pag->pag_ici_root, - (void **) batch, first_index, - XFS_LOOKUP_BATCH, tag); - + nr_found = radix_tree_gang_lookup_tag(&pag->pag_ici_root, + (void **) batch, first_index, + XFS_LOOKUP_BATCH, goal); if (!nr_found) { done = true; rcu_read_unlock(); @@ -1769,20 +1752,6 @@ xfs_icwalk_ag( return last_error; } -/* Fetch the next (possibly tagged) per-AG structure. */ -static inline struct xfs_perag * -xfs_icwalk_get_perag( - struct xfs_mount *mp, - xfs_agnumber_t agno, - enum xfs_icwalk_goal goal) -{ - unsigned int tag = xfs_icwalk_tag(goal); - - if (tag == XFS_ICWALK_NULL_TAG) - return xfs_perag_get(mp, agno); - return xfs_perag_get_tag(mp, agno, tag); -} - /* Walk all incore inodes to achieve a given goal. */ static int xfs_icwalk( @@ -1795,7 +1764,7 @@ xfs_icwalk( int last_error = 0; xfs_agnumber_t agno = 0; - while ((pag = xfs_icwalk_get_perag(mp, agno, goal))) { + while ((pag = xfs_perag_get_tag(mp, agno, goal))) { agno = pag->pag_agno + 1; error = xfs_icwalk_ag(pag, goal, icw); xfs_perag_put(pag); -- 2.30.2 ^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] xfs: remove support for untagged lookups in xfs_icwalk* 2021-08-13 8:16 [PATCH] xfs: remove support for untagged lookups in xfs_icwalk* Christoph Hellwig @ 2021-08-13 16:26 ` Darrick J. Wong 2021-08-14 7:22 ` Christoph Hellwig 0 siblings, 1 reply; 3+ messages in thread From: Darrick J. Wong @ 2021-08-13 16:26 UTC (permalink / raw) To: Christoph Hellwig; +Cc: linux-xfs, Dan Carpenter On Fri, Aug 13, 2021 at 10:16:23AM +0200, Christoph Hellwig wrote: > With quotaoff not allowing disabling of accounting there is no need > for untagged lookups in this code, so remove the dead leftovers. > > Repoted-by: Dan Carpenter <dan.carpenter@oracle.com> > Signed-off-by: Christoph Hellwig <hch@lst.de> > --- > fs/xfs/xfs_icache.c | 39 ++++----------------------------------- > 1 file changed, 4 insertions(+), 35 deletions(-) > > diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c > index e7e69e55b7680a..f5a52ec084842d 100644 > --- a/fs/xfs/xfs_icache.c > +++ b/fs/xfs/xfs_icache.c > @@ -43,15 +43,6 @@ enum xfs_icwalk_goal { The patch itself looks fine, so Reviewed-by: Darrick J. Wong <djwong@kernel.org> But you might as well convert the ag walk to use the foreach macros like everywhere else: --D diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c index f5a52ec08484..b7ffdc03e0f7 100644 --- a/fs/xfs/xfs_icache.c +++ b/fs/xfs/xfs_icache.c @@ -1762,16 +1762,16 @@ xfs_icwalk( struct xfs_perag *pag; int error = 0; int last_error = 0; - xfs_agnumber_t agno = 0; + xfs_agnumber_t agno; - while ((pag = xfs_perag_get_tag(mp, agno, goal))) { - agno = pag->pag_agno + 1; + for_each_perag_tag(mp, agno, pag, goal) { error = xfs_icwalk_ag(pag, goal, icw); - xfs_perag_put(pag); if (error) { last_error = error; - if (error == -EFSCORRUPTED) + if (error == -EFSCORRUPTED) { + xfs_perag_put(pag); break; + } } } return last_error; > XFS_ICWALK_RECLAIM = XFS_ICI_RECLAIM_TAG, > }; > > -#define XFS_ICWALK_NULL_TAG (-1U) > - > -/* Compute the inode radix tree tag for this goal. */ > -static inline unsigned int > -xfs_icwalk_tag(enum xfs_icwalk_goal goal) > -{ > - return goal < 0 ? XFS_ICWALK_NULL_TAG : goal; > -} > - > static int xfs_icwalk(struct xfs_mount *mp, > enum xfs_icwalk_goal goal, struct xfs_icwalk *icw); > static int xfs_icwalk_ag(struct xfs_perag *pag, > @@ -1676,22 +1667,14 @@ xfs_icwalk_ag( > nr_found = 0; > do { > struct xfs_inode *batch[XFS_LOOKUP_BATCH]; > - unsigned int tag = xfs_icwalk_tag(goal); > int error = 0; > int i; > > rcu_read_lock(); > > - if (tag == XFS_ICWALK_NULL_TAG) > - nr_found = radix_tree_gang_lookup(&pag->pag_ici_root, > - (void **)batch, first_index, > - XFS_LOOKUP_BATCH); > - else > - nr_found = radix_tree_gang_lookup_tag( > - &pag->pag_ici_root, > - (void **) batch, first_index, > - XFS_LOOKUP_BATCH, tag); > - > + nr_found = radix_tree_gang_lookup_tag(&pag->pag_ici_root, > + (void **) batch, first_index, > + XFS_LOOKUP_BATCH, goal); > if (!nr_found) { > done = true; > rcu_read_unlock(); > @@ -1769,20 +1752,6 @@ xfs_icwalk_ag( > return last_error; > } > > -/* Fetch the next (possibly tagged) per-AG structure. */ > -static inline struct xfs_perag * > -xfs_icwalk_get_perag( > - struct xfs_mount *mp, > - xfs_agnumber_t agno, > - enum xfs_icwalk_goal goal) > -{ > - unsigned int tag = xfs_icwalk_tag(goal); > - > - if (tag == XFS_ICWALK_NULL_TAG) > - return xfs_perag_get(mp, agno); > - return xfs_perag_get_tag(mp, agno, tag); > -} > - > /* Walk all incore inodes to achieve a given goal. */ > static int > xfs_icwalk( > @@ -1795,7 +1764,7 @@ xfs_icwalk( > int last_error = 0; > xfs_agnumber_t agno = 0; > > - while ((pag = xfs_icwalk_get_perag(mp, agno, goal))) { > + while ((pag = xfs_perag_get_tag(mp, agno, goal))) { > agno = pag->pag_agno + 1; > error = xfs_icwalk_ag(pag, goal, icw); > xfs_perag_put(pag); > -- > 2.30.2 > ^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] xfs: remove support for untagged lookups in xfs_icwalk* 2021-08-13 16:26 ` Darrick J. Wong @ 2021-08-14 7:22 ` Christoph Hellwig 0 siblings, 0 replies; 3+ messages in thread From: Christoph Hellwig @ 2021-08-14 7:22 UTC (permalink / raw) To: Darrick J. Wong; +Cc: Christoph Hellwig, linux-xfs, Dan Carpenter On Fri, Aug 13, 2021 at 09:26:36AM -0700, Darrick J. Wong wrote: > On Fri, Aug 13, 2021 at 10:16:23AM +0200, Christoph Hellwig wrote: > > With quotaoff not allowing disabling of accounting there is no need > > for untagged lookups in this code, so remove the dead leftovers. > > > > Repoted-by: Dan Carpenter <dan.carpenter@oracle.com> > > Signed-off-by: Christoph Hellwig <hch@lst.de> > > --- > > fs/xfs/xfs_icache.c | 39 ++++----------------------------------- > > 1 file changed, 4 insertions(+), 35 deletions(-) > > > > diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c > > index e7e69e55b7680a..f5a52ec084842d 100644 > > --- a/fs/xfs/xfs_icache.c > > +++ b/fs/xfs/xfs_icache.c > > @@ -43,15 +43,6 @@ enum xfs_icwalk_goal { > > The patch itself looks fine, so > Reviewed-by: Darrick J. Wong <djwong@kernel.org> > > But you might as well convert the ag walk to use the foreach macros > like everywhere else: True, this makes sense for consistency. That being said, comparing the two, I find the one without the extra layer of macro sugar way easier to read. ^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2021-08-14 7:22 UTC | newest] Thread overview: 3+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2021-08-13 8:16 [PATCH] xfs: remove support for untagged lookups in xfs_icwalk* Christoph Hellwig 2021-08-13 16:26 ` Darrick J. Wong 2021-08-14 7:22 ` Christoph Hellwig
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