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authorTrond Myklebust <trond.myklebust@hammerspace.com>2025-06-24 17:32:09 -0400
committerTrond Myklebust <trond.myklebust@hammerspace.com>2025-07-14 15:20:27 -0700
commit72508db0fe1762f2cfcff1cb4cf28a8e645bdd43 (patch)
tree7a92ec2b2e67c8ea98241584c6ba71c0dc9c1f0f /fs/nfs/write.c
parentb0b7cdc99431655aec3f3afcf05e3eeca0f8dd79 (diff)
NFS: Allow folio migration for the case of mode == MIGRATE_SYNC
When the mode is MIGRATE_SYNC, we are allowed to call nfs_wb_folio() under the folio lock. Reviewed-by: Benjamin Coddington <bcodding@redhat.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to 'fs/nfs/write.c')
-rw-r--r--fs/nfs/write.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 374fc6b34c79..0dd22983f0d0 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -2113,8 +2113,12 @@ int nfs_migrate_folio(struct address_space *mapping, struct folio *dst,
* that we can safely release the inode reference while holding
* the folio lock.
*/
- if (folio_test_private(src))
- return -EBUSY;
+ if (folio_test_private(src)) {
+ if (mode == MIGRATE_SYNC)
+ nfs_wb_folio(src->mapping->host, src);
+ if (folio_test_private(src))
+ return -EBUSY;
+ }
if (folio_test_private_2(src)) { /* [DEPRECATED] */
if (mode == MIGRATE_ASYNC)