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| author | David Howells <dhowells@redhat.com> | 2015-02-25 12:53:57 +0100 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2015-04-02 15:28:53 +0200 |
| commit | 6515d1dbf424c5c3b94d44e9c7f581026e7fc0d3 (patch) | |
| tree | f36db7b4a6e91ff358926ddfdb28fba8349620cf /fs/fscache/operation.c | |
| parent | FS-Cache: When submitting an op, cancel it if the target object is dying (diff) | |
| download | linux-6515d1dbf424c5c3b94d44e9c7f581026e7fc0d3.tar.xz linux-6515d1dbf424c5c3b94d44e9c7f581026e7fc0d3.zip | |
FS-Cache: Handle a new operation submitted against a killed object
Reject new operations that are being submitted against an object if that
object has failed its lookup or creation states or has been killed by the
cache backend for some other reason, such as having been culled.
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Steve Dickson <steved@redhat.com>
Acked-by: Jeff Layton <jeff.layton@primarydata.com>
Diffstat (limited to 'fs/fscache/operation.c')
| -rw-r--r-- | fs/fscache/operation.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/fscache/operation.c b/fs/fscache/operation.c index dec6defe3be3..18658fffbba1 100644 --- a/fs/fscache/operation.c +++ b/fs/fscache/operation.c @@ -176,6 +176,9 @@ int fscache_submit_exclusive_op(struct fscache_object *object, list_add_tail(&op->pend_link, &object->pending_ops); fscache_stat(&fscache_n_op_pend); ret = 0; + } else if (flags & BIT(FSCACHE_OBJECT_KILLED_BY_CACHE)) { + op->state = FSCACHE_OP_ST_CANCELLED; + ret = -ENOBUFS; } else { fscache_report_unexpected_submission(object, op, ostate); op->state = FSCACHE_OP_ST_CANCELLED; @@ -249,6 +252,9 @@ int fscache_submit_op(struct fscache_object *object, list_add_tail(&op->pend_link, &object->pending_ops); fscache_stat(&fscache_n_op_pend); ret = 0; + } else if (flags & BIT(FSCACHE_OBJECT_KILLED_BY_CACHE)) { + op->state = FSCACHE_OP_ST_CANCELLED; + ret = -ENOBUFS; } else { fscache_report_unexpected_submission(object, op, ostate); ASSERT(!fscache_object_is_active(object)); |