glusterfs.git/tests/bugs/bug-1126048.c, branch v3.6.3 mount/fuse: Handle fd resolution failures 2014-09-12T09:17:42+00:00 Pranith Kumar K pkarampu@redhat.com 2014-08-01T13:00:32+00:00 a82cfba2795bb15c74b4a8d28bd53ad73a7997c1 Backport of http://review.gluster.org/8402 Problem: Even when the fd resolution failed, the fop is continuing on the new graph which may not have valid inode. This lead to NULL layout subvols in dht which lead to crash in fsync after graph migration. Fix: - Remove resolution error handling in FUSE_FOP as it was only added to handle fd migration failures. - check in fuse_resolve_done for fd resolution failures and fail the fop right away. - loc resolution failures are already handled in the corresponding fops. - Return errno from state->resolve.op_errno in resume functions. - Send error to fuse on frame allocation failures. - Removed unused variable state->resolved - Removed unused macro FUSE_FOP_COOKIE BUG: 1136827 Change-Id: I4010b7fccd7d8caf0ce4e7629e81b605102d8fb4 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/8592 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com> 
        Backport of http://review.gluster.org/8402

Problem:
Even when the fd resolution failed, the fop is continuing on the
new graph which may not have valid inode. This lead to NULL layout
subvols in dht which lead to crash in fsync after graph migration.

Fix:
- Remove resolution error handling in FUSE_FOP as it was only added
  to handle fd migration failures.
- check in fuse_resolve_done for fd resolution failures and fail the
  fop right away.
- loc resolution failures are already handled in the corresponding
  fops.
- Return errno from state->resolve.op_errno in resume functions.
- Send error to fuse on frame allocation failures.
- Removed unused variable state->resolved
- Removed unused macro FUSE_FOP_COOKIE

BUG: 1136827
Change-Id: I4010b7fccd7d8caf0ce4e7629e81b605102d8fb4
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/8592
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>