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authorKaleb S. KEITHLEY <kkeithle@redhat.com>2014-08-28 12:33:01 -0400
committerKaleb KEITHLEY <kkeithle@redhat.com>2014-09-02 04:30:47 -0700
commit1d4ef0b891899e3a6dbc8c2087e73cee6f5a7fbe (patch)
treeffecc156761ac38cbd2ed48d8fc0af0b7dac26f1
parentf0ddba7e0913db505f1295e9b3b7d35ead9c4407 (diff)
mount/fuse: Handle fd resolution failuresv3.4.6beta1
Backport from http://review.gluster.org/#/c/8402, BZ 1126048 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 Change-Id: I3f3129b9b4fc34ff1fe07218e6924a027346a95e BUG: 1123289 Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com> Reviewed-on: http://review.gluster.org/8562 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
-rw-r--r--xlators/mount/fuse/src/fuse-bridge.c79
-rw-r--r--xlators/mount/fuse/src/fuse-bridge.h178
-rw-r--r--xlators/mount/fuse/src/fuse-helpers.c2
-rw-r--r--xlators/mount/fuse/src/fuse-resolve.c15
4 files changed, 82 insertions, 192 deletions
diff --git a/xlators/mount/fuse/src/fuse-bridge.c b/xlators/mount/fuse/src/fuse-bridge.c
index 8cde71c..c5c81d4 100644
--- a/xlators/mount/fuse/src/fuse-bridge.c
+++ b/xlators/mount/fuse/src/fuse-bridge.c
@@ -522,12 +522,32 @@ fuse_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
}
void
+fuse_fop_resume (fuse_state_t *state)
+{
+ fuse_resume_fn_t fn = NULL;
+
+ /*
+ * * Fail fd resolution failures right away.
+ * */
+ if (state->resolve.fd && state->resolve.op_ret < 0) {
+ send_fuse_err (state->this, state->finh,
+ state->resolve.op_errno);
+ free_fuse_state (state);
+ return;
+ }
+
+ fn = state->resume_fn;
+ fn (state);
+}
+
+void
fuse_lookup_resume (fuse_state_t *state)
{
if (!state->loc.parent && !state->loc.inode) {
gf_log ("fuse", GF_LOG_ERROR, "failed to resolve path %s",
state->loc.path);
- send_fuse_err (state->this, state->finh, ENOENT);
+ send_fuse_err (state->this, state->finh,
+ state->resolve.op_errno);
free_fuse_state (state);
return;
}
@@ -732,7 +752,8 @@ fuse_getattr_resume (fuse_state_t *state)
"%"PRIu64": GETATTR %"PRIu64" (%s) resolution failed",
state->finh->unique, state->finh->nodeid,
uuid_utoa (state->resolve.gfid));
- send_fuse_err (state->this, state->finh, ENOENT);
+ send_fuse_err (state->this, state->finh,
+ state->resolve.op_errno);
free_fuse_state (state);
return;
}
@@ -1044,7 +1065,8 @@ fuse_setattr_resume (fuse_state_t *state)
"%"PRIu64": SETATTR %"PRIu64" (%s) resolution failed",
state->finh->unique, state->finh->nodeid,
uuid_utoa (state->resolve.gfid));
- send_fuse_err (state->this, state->finh, ENOENT);
+ send_fuse_err (state->this, state->finh,
+ state->resolve.op_errno);
free_fuse_state (state);
return;
}
@@ -1249,7 +1271,8 @@ fuse_access_resume (fuse_state_t *state)
"%"PRIu64": ACCESS %"PRIu64" (%s) resolution failed",
state->finh->unique, state->finh->nodeid,
uuid_utoa (state->resolve.gfid));
- send_fuse_err (state->this, state->finh, ENOENT);
+ send_fuse_err (state->this, state->finh,
+ state->resolve.op_errno);
free_fuse_state (state);
return;
}
@@ -1326,7 +1349,8 @@ fuse_readlink_resume (fuse_state_t *state)
gf_log ("glusterfs-fuse", GF_LOG_ERROR,
"READLINK %"PRIu64" (%s) resolution failed",
state->finh->unique, uuid_utoa (state->resolve.gfid));
- send_fuse_err (state->this, state->finh, ENOENT);
+ send_fuse_err (state->this, state->finh,
+ state->resolve.op_errno);
free_fuse_state (state);
return;
}
@@ -1361,7 +1385,8 @@ fuse_mknod_resume (fuse_state_t *state)
"MKNOD %"PRId64"/%s (%s/%s) resolution failed",
state->finh->nodeid, state->resolve.bname,
uuid_utoa (state->resolve.gfid), state->resolve.bname);
- send_fuse_err (state->this, state->finh, ENOENT);
+ send_fuse_err (state->this, state->finh,
+ state->resolve.op_errno);
free_fuse_state (state);
return;
}
@@ -1431,7 +1456,8 @@ fuse_mkdir_resume (fuse_state_t *state)
"MKDIR %"PRId64" (%s/%s) resolution failed",
state->finh->nodeid, uuid_utoa (state->resolve.gfid),
state->resolve.bname);
- send_fuse_err (state->this, state->finh, ENOENT);
+ send_fuse_err (state->this, state->finh,
+ state->resolve.op_errno);
free_fuse_state (state);
return;
}
@@ -1493,7 +1519,8 @@ fuse_unlink_resume (fuse_state_t *state)
"UNLINK %"PRId64" (%s/%s) resolution failed",
state->finh->nodeid, uuid_utoa (state->resolve.gfid),
state->resolve.bname);
- send_fuse_err (state->this, state->finh, ENOENT);
+ send_fuse_err (state->this, state->finh,
+ state->resolve.op_errno);
free_fuse_state (state);
return;
}
@@ -1529,7 +1556,8 @@ fuse_rmdir_resume (fuse_state_t *state)
"RMDIR %"PRId64" (%s/%s) resolution failed",
state->finh->nodeid, uuid_utoa (state->resolve.gfid),
state->resolve.bname);
- send_fuse_err (state->this, state->finh, ENOENT);
+ send_fuse_err (state->this, state->finh,
+ state->resolve.op_errno);
free_fuse_state (state);
return;
}
@@ -1565,7 +1593,8 @@ fuse_symlink_resume (fuse_state_t *state)
"SYMLINK %"PRId64" (%s/%s) -> %s resolution failed",
state->finh->nodeid, uuid_utoa (state->resolve.gfid),
state->resolve.bname, state->name);
- send_fuse_err (state->this, state->finh, ENOENT);
+ send_fuse_err (state->this, state->finh,
+ state->resolve.op_errno);
free_fuse_state (state);
return;
}
@@ -1681,7 +1710,8 @@ fuse_rename_resume (fuse_state_t *state)
uuid_utoa_r (state->resolve2.gfid, loc2_uuid),
state->resolve2.bname);
- send_fuse_err (state->this, state->finh, ENOENT);
+ send_fuse_err (state->this, state->finh,
+ state->resolve.op_errno);
free_fuse_state (state);
return;
}
@@ -1738,7 +1768,8 @@ fuse_link_resume (fuse_state_t *state)
gf_log ("glusterfs-fuse", GF_LOG_WARNING,
"fuse_loc_fill() failed %"PRIu64": LINK %s %s",
state->finh->unique, state->loc2.path, state->loc.path);
- send_fuse_err (state->this, state->finh, ENOENT);
+ send_fuse_err (state->this, state->finh,
+ state->resolve.op_errno);
free_fuse_state (state);
return;
}
@@ -1889,7 +1920,8 @@ fuse_create_resume (fuse_state_t *state)
"%"PRIu64" CREATE %s/%s resolution failed",
state->finh->unique, uuid_utoa (state->resolve.gfid),
state->resolve.bname);
- send_fuse_err (state->this, state->finh, ENOENT);
+ send_fuse_err (state->this, state->finh,
+ state->resolve.op_errno);
free_fuse_state (state);
return;
}
@@ -1995,7 +2027,8 @@ fuse_open_resume (fuse_state_t *state)
"%"PRIu64": OPEN %s resolution failed",
state->finh->unique, uuid_utoa (state->resolve.gfid));
- send_fuse_err (state->this, state->finh, ENOENT);
+ send_fuse_err (state->this, state->finh,
+ state->resolve.op_errno);
free_fuse_state (state);
return;
}
@@ -2375,7 +2408,8 @@ fuse_opendir_resume (fuse_state_t *state)
gf_log ("glusterfs-fuse", GF_LOG_WARNING,
"%"PRIu64": OPENDIR (%s) resolution failed",
state->finh->unique, uuid_utoa (state->resolve.gfid));
- send_fuse_err (state->this, state->finh, ENOENT);
+ send_fuse_err (state->this, state->finh,
+ state->resolve.op_errno);
free_fuse_state (state);
return;
}
@@ -2840,7 +2874,8 @@ fuse_statfs_resume (fuse_state_t *state)
"%"PRIu64": STATFS (%s) resolution fail",
state->finh->unique, uuid_utoa (state->resolve.gfid));
- send_fuse_err (state->this, state->finh, ENOENT);
+ send_fuse_err (state->this, state->finh,
+ state->resolve.op_errno);
free_fuse_state (state);
return;
}
@@ -2875,7 +2910,8 @@ fuse_setxattr_resume (fuse_state_t *state)
"resolution failed",
state->finh->unique, uuid_utoa (state->resolve.gfid),
state->finh->nodeid, state->name);
- send_fuse_err (state->this, state->finh, ENOENT);
+ send_fuse_err (state->this, state->finh,
+ state->resolve.op_errno);
free_fuse_state (state);
return;
}
@@ -3171,7 +3207,8 @@ fuse_getxattr_resume (fuse_state_t *state)
uuid_utoa (state->resolve.gfid),
state->finh->nodeid, state->name);
- send_fuse_err (state->this, state->finh, ENOENT);
+ send_fuse_err (state->this, state->finh,
+ state->resolve.op_errno);
free_fuse_state (state);
return;
}
@@ -3278,7 +3315,8 @@ fuse_listxattr_resume (fuse_state_t *state)
"resolution failed", state->finh->unique,
uuid_utoa (state->resolve.gfid), state->finh->nodeid);
- send_fuse_err (state->this, state->finh, ENOENT);
+ send_fuse_err (state->this, state->finh,
+ state->resolve.op_errno);
free_fuse_state (state);
return;
}
@@ -3333,7 +3371,8 @@ fuse_removexattr_resume (fuse_state_t *state)
state->finh->unique, uuid_utoa (state->resolve.gfid),
state->finh->nodeid, state->name);
- send_fuse_err (state->this, state->finh, ENOENT);
+ send_fuse_err (state->this, state->finh,
+ state->resolve.op_errno);
free_fuse_state (state);
return;
}
diff --git a/xlators/mount/fuse/src/fuse-bridge.h b/xlators/mount/fuse/src/fuse-bridge.h
index 008a76e..16fd905 100644
--- a/xlators/mount/fuse/src/fuse-bridge.h
+++ b/xlators/mount/fuse/src/fuse-bridge.h
@@ -145,10 +145,17 @@ typedef struct fuse_graph_switch_args fuse_graph_switch_args_t;
#define FUSE_FOP(state, ret, op_num, fop, args ...) \
do { \
- call_frame_t *frame = NULL; \
- xlator_t *xl = NULL; \
- int32_t op_ret = 0, op_errno = 0; \
- fuse_resolve_t *resolve = NULL; \
+ xlator_t *xl = NULL; \
+ call_frame_t *frame = NULL; \
+ \
+ xl = state->active_subvol; \
+ if (!xl) { \
+ gf_log_callingfn (state->this->name, GF_LOG_ERROR, \
+ "No active subvolume"); \
+ send_fuse_err (state->this, state->finh, ENOENT); \
+ free_fuse_state (state); \
+ break; \
+ } \
\
frame = get_call_frame_for_req (state); \
if (!frame) { \
@@ -158,13 +165,7 @@ typedef struct fuse_graph_switch_args fuse_graph_switch_args_t;
* better than trying to go on with a NULL \
* frame ... \
*/ \
- gf_log_callingfn ("glusterfs-fuse", \
- GF_LOG_ERROR, \
- "FUSE message" \
- " unique %"PRIu64" opcode %d:" \
- " frame allocation failed", \
- state->finh->unique, \
- state->finh->opcode); \
+ send_fuse_err (state->this, state->finh, ENOMEM); \
free_fuse_state (state); \
/* ideally, need to 'return', but let the */ \
/* calling function take care of it */ \
@@ -175,150 +176,15 @@ typedef struct fuse_graph_switch_args fuse_graph_switch_args_t;
frame->root->op = op_num; \
frame->op = op_num; \
\
- if ( state->resolve_now ) { \
- resolve = state->resolve_now; \
- } else { \
- resolve = &(state->resolve); \
- } \
- \
- xl = state->active_subvol; \
- if (!xl) { \
- gf_log_callingfn ("glusterfs-fuse", GF_LOG_ERROR, \
- "xl is NULL"); \
- op_errno = ENOENT; \
- op_ret = -1; \
- } else if (resolve->op_ret < 0) { \
- op_errno = resolve->op_errno; \
- op_ret = -1; \
- if (op_num == GF_FOP_LOOKUP) { \
- gf_log ("glusterfs-fuse", \
- (op_errno == ENOENT ? GF_LOG_TRACE \
- : GF_LOG_WARNING), \
- "%"PRIu64": %s() %s => -1 (%s)", \
- frame->root->unique, \
- gf_fop_list[frame->root->op], \
- resolve->resolve_loc.path, \
- strerror (op_errno)); \
- } else { \
- gf_log ("glusterfs-fuse", \
- GF_LOG_WARNING, \
- "%"PRIu64": %s() inode " \
- "migration of %s failed (%s)", \
- frame->root->unique, \
- gf_fop_list[frame->root->op], \
- resolve->resolve_loc.path, \
- strerror (op_errno)); \
- } \
- } else if (state->resolve2.op_ret < 0) { \
- op_errno = state->resolve2.op_errno; \
- op_ret = -1; \
- gf_log ("glusterfs-fuse", \
- GF_LOG_WARNING, \
- "%"PRIu64": %s() inode " \
- "migration of %s failed (%s)", \
- frame->root->unique, \
- gf_fop_list[frame->root->op], \
- state->resolve2.resolve_loc.path, \
- strerror (op_errno)); \
- } \
- \
- if (op_ret < 0) { \
- send_fuse_err (state->this, state->finh, op_errno); \
- free_fuse_state (state); \
- STACK_DESTROY (frame->root); \
- } else { \
- if (state->this->history) \
- gf_log_eh ("%"PRIu64", %s, path: (%s), gfid: " \
- "(%s)", frame->root->unique, \
- gf_fop_list[frame->root->op], \
- state->loc.path, \
- (state->fd == NULL)? \
- uuid_utoa (state->loc.gfid): \
- uuid_utoa (state->fd->inode->gfid));\
- STACK_WIND (frame, ret, xl, xl->fops->fop, args); \
- } \
- \
- } while (0)
-
-
-#define FUSE_FOP_COOKIE(state, xl, ret, cky, op_num, fop, args ...) \
- do { \
- call_frame_t *frame = NULL; \
- xlator_t *xl = NULL; \
- int32_t op_ret = 0, op_errno = 0; \
- \
- frame = get_call_frame_for_req (state); \
- if (!frame) { \
- gf_log ("glusterfs-fuse", \
- GF_LOG_ERROR, \
- "FUSE message" \
- " unique %"PRIu64" opcode %d:" \
- " frame allocation failed", \
- state->finh->unique, \
- state->finh->opcode); \
- free_fuse_state (state); \
- return 0; \
- } \
- \
- frame->root->state = state; \
- frame->root->op = op_num; \
- frame->op = op_num; \
- \
- xl = state->active_subvol; \
- if (!xl) { \
- gf_log_callingfn ("glusterfs-fuse", GF_LOG_ERROR, \
- "xl is NULL"); \
- op_errno = ENOENT; \
- op_ret = -1; \
- } else if (state->resolve.op_ret < 0) { \
- op_errno = state->resolve.op_errno; \
- op_ret = -1; \
- if (op_num == GF_FOP_LOOKUP) { \
- gf_log ("glusterfs-fuse", \
- (op_errno == ENOENT ? GF_LOG_TRACE \
- : GF_LOG_WARNING), \
- "%"PRIu64": %s() %s => -1 (%s)", \
- frame->root->unique, \
- gf_fop_list[frame->root->op], \
- state->resolve.resolve_loc.path, \
- strerror (op_errno)); \
- } else { \
- gf_log ("glusterfs-fuse", \
- GF_LOG_WARNING, \
- "%"PRIu64": %s() inode " \
- "migration of %s failed (%s)", \
- frame->root->unique, \
- gf_fop_list[frame->root->op], \
- state->resolve.resolve_loc.path, \
- strerror (op_errno)); \
- } \
- } else if (state->resolve2.op_ret < 0) { \
- op_errno = state->resolve2.op_errno; \
- op_ret = -1; \
- gf_log ("glusterfs-fuse", \
- GF_LOG_WARNING, \
- "%"PRIu64": %s() inode " \
- "migration of %s failed (%s)", \
- frame->root->unique, \
- gf_fop_list[frame->root->op], \
- state->resolve2.resolve_loc.path, \
- strerror (op_errno)); \
- } \
- \
- if (op_ret < 0) { \
- send_fuse_err (state->this, state->finh, op_errno); \
- free_fuse_state (state); \
- STACK_DESTROY (frame->root); \
- } else { \
- if (xl->history) \
- gf_log_eh ("%"PRIu64", %s, path: (%s), gfid: " \
- "(%s)", frame->root->unique, \
- gf_fop_list[frame->root->op], \
- state->loc.path, \
- uuid_utoa (state->loc.gfid)); \
- STACK_WIND_COOKIE (frame, ret, cky, xl, xl->fops->fop, \
- args); \
- } \
+ if (state->this->history) \
+ gf_log_eh ("%"PRIu64", %s, path: (%s), gfid: " \
+ "(%s)", frame->root->unique, \
+ gf_fop_list[frame->root->op], \
+ state->loc.path, \
+ (state->fd == NULL)? \
+ uuid_utoa (state->loc.gfid): \
+ uuid_utoa (state->fd->inode->gfid)); \
+ STACK_WIND (frame, ret, xl, xl->fops->fop, args); \
} while (0)
#define GF_SELECT_LOG_LEVEL(_errno) \
@@ -446,7 +312,6 @@ typedef struct {
inode_t *hint;
u_char pargfid[16];
inode_t *parhint;
- char *resolved;
int op_ret;
int op_errno;
loc_t resolve_loc;
@@ -533,5 +398,6 @@ int fuse_resolve_entry_init (fuse_state_t *state, fuse_resolve_t *resolve,
int fuse_resolve_fd_init (fuse_state_t *state, fuse_resolve_t *resolve,
fd_t *fd);
int fuse_ignore_xattr_set (fuse_private_t *priv, char *key);
+void fuse_fop_resume (fuse_state_t *state);
int dump_history_fuse (circular_buffer_t *cb, void *data);
#endif /* _GF_FUSE_BRIDGE_H_ */
diff --git a/xlators/mount/fuse/src/fuse-helpers.c b/xlators/mount/fuse/src/fuse-helpers.c
index c5c0404..0b903ee 100644
--- a/xlators/mount/fuse/src/fuse-helpers.c
+++ b/xlators/mount/fuse/src/fuse-helpers.c
@@ -22,8 +22,6 @@ fuse_resolve_wipe (fuse_resolve_t *resolve)
GF_FREE ((void *)resolve->bname);
- GF_FREE ((void *)resolve->resolved);
-
if (resolve->fd)
fd_unref (resolve->fd);
diff --git a/xlators/mount/fuse/src/fuse-resolve.c b/xlators/mount/fuse/src/fuse-resolve.c
index 8565ce0..2eea7da5 100644
--- a/xlators/mount/fuse/src/fuse-resolve.c
+++ b/xlators/mount/fuse/src/fuse-resolve.c
@@ -653,19 +653,6 @@ fuse_resolve (fuse_state_t *state)
}
-static int
-fuse_resolve_done (fuse_state_t *state)
-{
- fuse_resume_fn_t fn = NULL;
-
- fn = state->resume_fn;
-
- fn (state);
-
- return 0;
-}
-
-
/*
* This function is called multiple times, once per resolving one location/fd.
* state->resolve_now is used to decide which location/fd is to be resolved now
@@ -689,7 +676,7 @@ fuse_resolve_all (fuse_state_t *state)
} else if (state->resolve_now == &state->resolve2) {
- fuse_resolve_done (state);
+ fuse_fop_resume (state);
} else {
gf_log ("fuse-resolve", GF_LOG_ERROR,