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netfs: Remove some extraneous directory invalidations

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In the directory editing code, we shouldn't re-invalidate the directory
if it is already invalidated.

Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://lore.kernel.org/r/20241216204124.3752367-15-dhowells@redhat.com
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
David Howells 2024-12-16 20:41:04 +00:00 committed by Christian Brauner
parent 07a1076785
commit 30f878fa0f
No known key found for this signature in database
GPG Key ID: 91C61BC06578DCA2
1 changed files with 9 additions and 13 deletions
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22
fs/afs/dir_edit.c
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@ -247,7 +247,7 @@ void afs_edit_dir_add(struct afs_vnode *vnode,
*/
index = b / AFS_DIR_BLOCKS_PER_PAGE;
if (nr_blocks >= AFS_DIR_MAX_BLOCKS)
goto error;
goto error_too_many_blocks;
if (index >= folio_nr_pages(folio0)) {
folio = afs_dir_get_folio(vnode, index);
if (!folio)
@ -260,7 +260,7 @@ void afs_edit_dir_add(struct afs_vnode *vnode,
/* Abandon the edit if we got a callback break. */
if (!test_bit(AFS_VNODE_DIR_VALID, &vnode->flags))
goto invalidated;
goto already_invalidated;
_debug("block %u: %2u %3u %u",
b,
@ -348,9 +348,8 @@ void afs_edit_dir_add(struct afs_vnode *vnode,
_leave("");
return;
invalidated:
already_invalidated:
trace_afs_edit_dir(vnode, why, afs_edit_dir_create_inval, 0, 0, 0, 0, name->name);
clear_bit(AFS_VNODE_DIR_VALID, &vnode->flags);
kunmap_local(block);
if (folio != folio0) {
folio_unlock(folio);
@ -358,9 +357,10 @@ void afs_edit_dir_add(struct afs_vnode *vnode,
}
goto out_unmap;
error_too_many_blocks:
clear_bit(AFS_VNODE_DIR_VALID, &vnode->flags);
error:
trace_afs_edit_dir(vnode, why, afs_edit_dir_create_error, 0, 0, 0, 0, name->name);
clear_bit(AFS_VNODE_DIR_VALID, &vnode->flags);
goto out_unmap;
}
@ -421,7 +421,7 @@ void afs_edit_dir_remove(struct afs_vnode *vnode,
/* Abandon the edit if we got a callback break. */
if (!test_bit(AFS_VNODE_DIR_VALID, &vnode->flags))
goto invalidated;
goto already_invalidated;
if (b > AFS_DIR_BLOCKS_WITH_CTR ||
meta->meta.alloc_ctrs[b] <= AFS_DIR_SLOTS_PER_BLOCK - 1 - need_slots) {
@ -475,10 +475,9 @@ void afs_edit_dir_remove(struct afs_vnode *vnode,
_leave("");
return;
invalidated:
already_invalidated:
trace_afs_edit_dir(vnode, why, afs_edit_dir_delete_inval,
0, 0, 0, 0, name->name);
clear_bit(AFS_VNODE_DIR_VALID, &vnode->flags);
kunmap_local(block);
if (folio != folio0) {
folio_unlock(folio);
@ -489,7 +488,6 @@ void afs_edit_dir_remove(struct afs_vnode *vnode,
error:
trace_afs_edit_dir(vnode, why, afs_edit_dir_delete_error,
0, 0, 0, 0, name->name);
clear_bit(AFS_VNODE_DIR_VALID, &vnode->flags);
goto out_unmap;
}
@ -530,7 +528,7 @@ void afs_edit_dir_update_dotdot(struct afs_vnode *vnode, struct afs_vnode *new_d
/* Abandon the edit if we got a callback break. */
if (!test_bit(AFS_VNODE_DIR_VALID, &vnode->flags))
goto invalidated;
goto already_invalidated;
slot = afs_dir_scan_block(block, &dotdot_name, b);
if (slot >= 0)
@ -564,18 +562,16 @@ void afs_edit_dir_update_dotdot(struct afs_vnode *vnode, struct afs_vnode *new_d
_leave("");
return;
invalidated:
already_invalidated:
kunmap_local(block);
folio_unlock(folio);
folio_put(folio);
trace_afs_edit_dir(vnode, why, afs_edit_dir_update_inval,
0, 0, 0, 0, "..");
clear_bit(AFS_VNODE_DIR_VALID, &vnode->flags);
goto out;
error:
trace_afs_edit_dir(vnode, why, afs_edit_dir_update_error,
0, 0, 0, 0, "..");
clear_bit(AFS_VNODE_DIR_VALID, &vnode->flags);
goto out;
}