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Subject[PATCH V6 1/8] fs/xfs: Remove unnecessary initialization of i_rwsem
Date
From: Ira Weiny <ira.weiny@intel.com>

An earlier call of xfs_reinit_inode() from xfs_iget_cache_hit() already
handles initialization of i_rwsem.

Doing so again is unneeded.

Signed-off-by: Ira Weiny <ira.weiny@intel.com>

---
Changes from V4:
Update commit message to make it clear the xfs_iget_cache_hit()
is actually doing the initialization via xfs_reinit_inode()

New for V4:

NOTE: This was found while ensuring the new i_aops_sem was properly
handled. It seems like this is a layering violation so I think it is
worth cleaning up so as to not confuse others.
---
fs/xfs/xfs_icache.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c
index 8dc2e5414276..836a1f09be03 100644
--- a/fs/xfs/xfs_icache.c
+++ b/fs/xfs/xfs_icache.c
@@ -419,6 +419,7 @@ xfs_iget_cache_hit(
spin_unlock(&ip->i_flags_lock);
rcu_read_unlock();

+ ASSERT(!rwsem_is_locked(&inode->i_rwsem));
error = xfs_reinit_inode(mp, inode);
if (error) {
bool wake;
@@ -452,9 +453,6 @@ xfs_iget_cache_hit(
ip->i_sick = 0;
ip->i_checked = 0;

- ASSERT(!rwsem_is_locked(&inode->i_rwsem));
- init_rwsem(&inode->i_rwsem);
-
spin_unlock(&ip->i_flags_lock);
spin_unlock(&pag->pag_ici_lock);
} else {
--
2.25.1
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