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authorDarrick J. Wong <darrick.wong@oracle.com>2020-05-21 23:08:50 +0300
committerDarrick J. Wong <darrick.wong@oracle.com>2020-05-27 18:49:27 +0300
commit5662d38ccdbd9e5c816f5c0b7f490a29729217b0 (patch)
tree8118e89ba179c947a7af9981a621540a88b81799 /fs/xfs
parent7e88d31423e2874be03f8ebc6274c917f674743a (diff)
downloadlinux-5662d38ccdbd9e5c816f5c0b7f490a29729217b0.tar.xz
xfs: move xfs_inode_ag_iterator to be closer to the perag walking code
Move the xfs_inode_ag_iterator function to be nearer xfs_inode_ag_walk so that we don't have to scroll back and forth to figure out how the incore inode walking function works. No functional changes. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Brian Foster <bfoster@redhat.com>
Diffstat (limited to 'fs/xfs')
-rw-r--r--fs/xfs/xfs_icache.c88
1 files changed, 48 insertions, 40 deletions
diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c
index 0adc6cc0b37e..3a4b97669c7d 100644
--- a/fs/xfs/xfs_icache.c
+++ b/fs/xfs/xfs_icache.c
@@ -811,6 +811,10 @@ out_unlock_noent:
return false;
}
+/*
+ * For a given per-AG structure @pag, grab, @execute, and rele all incore
+ * inodes with the given radix tree @tag.
+ */
STATIC int
xfs_inode_ag_walk(
struct xfs_mount *mp,
@@ -916,6 +920,50 @@ restart:
return last_error;
}
+/* Fetch the next (possibly tagged) per-AG structure. */
+static inline struct xfs_perag *
+xfs_inode_walk_get_perag(
+ struct xfs_mount *mp,
+ xfs_agnumber_t agno,
+ int tag)
+{
+ if (tag == XFS_ICI_NO_TAG)
+ return xfs_perag_get(mp, agno);
+ return xfs_perag_get_tag(mp, agno, tag);
+}
+
+/*
+ * Call the @execute function on all incore inodes matching the radix tree
+ * @tag.
+ */
+int
+xfs_inode_ag_iterator(
+ struct xfs_mount *mp,
+ int iter_flags,
+ int (*execute)(struct xfs_inode *ip, void *args),
+ void *args,
+ int tag)
+{
+ struct xfs_perag *pag;
+ int error = 0;
+ int last_error = 0;
+ xfs_agnumber_t ag;
+
+ ag = 0;
+ while ((pag = xfs_inode_walk_get_perag(mp, ag, tag))) {
+ ag = pag->pag_agno + 1;
+ error = xfs_inode_ag_walk(mp, pag, execute, args, tag,
+ iter_flags);
+ xfs_perag_put(pag);
+ if (error) {
+ last_error = error;
+ if (error == -EFSCORRUPTED)
+ break;
+ }
+ }
+ return last_error;
+}
+
/*
* Background scanning to trim post-EOF preallocated space. This is queued
* based on the 'speculative_prealloc_lifetime' tunable (5m by default).
@@ -979,46 +1027,6 @@ xfs_cowblocks_worker(
xfs_queue_cowblocks(mp);
}
-/* Fetch the next (possibly tagged) per-AG structure. */
-static inline struct xfs_perag *
-xfs_inode_walk_get_perag(
- struct xfs_mount *mp,
- xfs_agnumber_t agno,
- int tag)
-{
- if (tag == XFS_ICI_NO_TAG)
- return xfs_perag_get(mp, agno);
- return xfs_perag_get_tag(mp, agno, tag);
-}
-
-int
-xfs_inode_ag_iterator(
- struct xfs_mount *mp,
- int iter_flags,
- int (*execute)(struct xfs_inode *ip, void *args),
- void *args,
- int tag)
-{
- struct xfs_perag *pag;
- int error = 0;
- int last_error = 0;
- xfs_agnumber_t ag;
-
- ag = 0;
- while ((pag = xfs_inode_walk_get_perag(mp, ag, tag))) {
- ag = pag->pag_agno + 1;
- error = xfs_inode_ag_walk(mp, pag, execute, args, tag,
- iter_flags);
- xfs_perag_put(pag);
- if (error) {
- last_error = error;
- if (error == -EFSCORRUPTED)
- break;
- }
- }
- return last_error;
-}
-
/*
* Grab the inode for reclaim exclusively.
* Return 0 if we grabbed it, non-zero otherwise.