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-rw-r--r--xlators/mount/fuse/src/fuse-bridge.c78
-rw-r--r--xlators/mount/fuse/src/fuse-bridge.h9
2 files changed, 80 insertions, 7 deletions
diff --git a/xlators/mount/fuse/src/fuse-bridge.c b/xlators/mount/fuse/src/fuse-bridge.c
index 8d33cdfa160..14a63edf602 100644
--- a/xlators/mount/fuse/src/fuse-bridge.c
+++ b/xlators/mount/fuse/src/fuse-bridge.c
@@ -198,7 +198,7 @@ fusedump_setup_meta(struct iovec *iovs, char *dir,
static int
check_and_dump_fuse_W(fuse_private_t *priv, struct iovec *iov_out, int count,
- ssize_t res)
+ ssize_t res, errnomask_t errnomask)
{
char w = 'W';
struct iovec diov[4] = {
@@ -216,8 +216,59 @@ check_and_dump_fuse_W(fuse_private_t *priv, struct iovec *iov_out, int count,
struct fuse_out_header *fouh = NULL;
if (res == -1) {
- gf_log_callingfn("glusterfs-fuse", GF_LOG_ERROR,
- "writing to fuse device failed: %s", strerror(errno));
+ const char *errdesc = NULL;
+ gf_loglevel_t loglevel = GF_LOG_ERROR;
+
+ /* If caller masked the errno, then it
+ * does not indicate an error at the application
+ * level, so we degrade the log severity to DEBUG.
+ */
+ if (errnomask && errno < ERRNOMASK_MAX &&
+ GET_ERRNO_MASK(errnomask, errno))
+ loglevel = GF_LOG_DEBUG;
+
+ switch (errno) {
+ /* The listed errnos are FUSE status indicators,
+ * not legit values according to POSIX (see write(3p)),
+ * so resolving them according to the standard
+ * POSIX interpretation would be misleading.
+ */
+ case ENOENT:
+ errdesc = "ENOENT";
+ break;
+ case ENOTDIR:
+ errdesc = "ENOTDIR";
+ break;
+ case ENODEV:
+ errdesc = "ENODEV";
+ break;
+ case EPERM:
+ errdesc = "EPERM";
+ break;
+ case ENOMEM:
+ errdesc = "ENOMEM";
+ break;
+ case ENOTCONN:
+ errdesc = "ENOTCONN";
+ break;
+ case ECONNREFUSED:
+ errdesc = "ECONNREFUSED";
+ break;
+ case EOVERFLOW:
+ errdesc = "EOVERFLOW";
+ break;
+ case EBUSY:
+ errdesc = "EBUSY";
+ break;
+ case ENOTEMPTY:
+ errdesc = "ENOTEMPTY";
+ break;
+ default:
+ errdesc = strerror(errno);
+ }
+
+ gf_log_callingfn("glusterfs-fuse", loglevel,
+ "writing to fuse device failed: %s", errdesc);
return errno;
}
@@ -282,7 +333,7 @@ send_fuse_iov(xlator_t *this, fuse_in_header_t *finh, struct iovec *iov_out,
gf_log("glusterfs-fuse", GF_LOG_TRACE, "writev() result %d/%d %s", res,
fouh->len, res == -1 ? strerror(errno) : "");
- return check_and_dump_fuse_W(priv, iov_out, count, res);
+ return check_and_dump_fuse_W(priv, iov_out, count, res, NULL);
}
static int
@@ -348,6 +399,15 @@ fuse_invalidate_entry(xlator_t *this, uint64_t fuse_ino)
fouh->unique = 0;
fouh->error = FUSE_NOTIFY_INVAL_ENTRY;
+ if (ENOENT < ERRNOMASK_MAX)
+ MASK_ERRNO(node->errnomask, ENOENT);
+ if (ENOTDIR < ERRNOMASK_MAX)
+ MASK_ERRNO(node->errnomask, ENOTDIR);
+ if (EBUSY < ERRNOMASK_MAX)
+ MASK_ERRNO(node->errnomask, EBUSY);
+ if (ENOTEMPTY < ERRNOMASK_MAX)
+ MASK_ERRNO(node->errnomask, ENOTEMPTY);
+
if (dentry->name) {
nlen = strlen(dentry->name);
fouh->len = sizeof(*fouh) + sizeof(*fnieo) + nlen + 1;
@@ -426,6 +486,9 @@ fuse_invalidate_inode(xlator_t *this, uint64_t fuse_ino)
fniio->off = 0;
fniio->len = -1;
+ if (ENOENT < ERRNOMASK_MAX)
+ MASK_ERRNO(node->errnomask, ENOENT);
+
fuse_log_eh(this, "Invalidated inode %" PRIu64 " (gfid: %s)", fuse_ino,
uuid_utoa(inode->gfid));
gf_log("glusterfs-fuse", GF_LOG_TRACE,
@@ -469,6 +532,7 @@ fuse_timed_message_new(void)
/* should be NULL if not set */
dmsg->fuse_message_body = NULL;
INIT_LIST_HEAD(&dmsg->next);
+ memset(dmsg->errnomask, 0, sizeof(dmsg->errnomask));
return dmsg;
}
@@ -667,6 +731,8 @@ fuse_interrupt(xlator_t *this, fuse_in_header_t *finh, void *msg,
dmsg->fuse_out_header.unique = finh->unique;
dmsg->fuse_out_header.len = sizeof(dmsg->fuse_out_header);
dmsg->fuse_out_header.error = -EAGAIN;
+ if (ENOENT < ERRNOMASK_MAX)
+ MASK_ERRNO(dmsg->errnomask, ENOENT);
timespec_now(&dmsg->scheduled_ts);
timespec_adjust_delta(&dmsg->scheduled_ts,
(struct timespec){0, 10000000});
@@ -4831,7 +4897,7 @@ notify_kernel_loop(void *data)
iov_out.iov_base = node->inval_buf;
iov_out.iov_len = len;
rv = sys_writev(priv->fd, &iov_out, 1);
- check_and_dump_fuse_W(priv, &iov_out, 1, rv);
+ check_and_dump_fuse_W(priv, &iov_out, 1, rv, node->errnomask);
GF_FREE(node);
@@ -4922,7 +4988,7 @@ timed_response_loop(void *data)
iovs[1] = (struct iovec){dmsg->fuse_message_body,
len - sizeof(struct fuse_out_header)};
rv = sys_writev(priv->fd, iovs, 2);
- check_and_dump_fuse_W(priv, iovs, 2, rv);
+ check_and_dump_fuse_W(priv, iovs, 2, rv, dmsg->errnomask);
fuse_timed_message_free(dmsg);
diff --git a/xlators/mount/fuse/src/fuse-bridge.h b/xlators/mount/fuse/src/fuse-bridge.h
index 697bd8848e1..06ed639bbcf 100644
--- a/xlators/mount/fuse/src/fuse-bridge.h
+++ b/xlators/mount/fuse/src/fuse-bridge.h
@@ -194,14 +194,20 @@ struct fuse_private {
};
typedef struct fuse_private fuse_private_t;
+typedef uint64_t errnomask_t[2];
+#define MASK_ERRNO(mask, n) ((mask)[(n) >> 6] |= ((uint64_t)1 << ((n)&63)))
+#define GET_ERRNO_MASK(mask, n) ((mask)[(n) >> 6] & ((uint64_t)1 << ((n)&63)))
+#define ERRNOMASK_MAX (64 * (sizeof(errnomask_t) / sizeof(uint64_t)))
+
#define INVAL_BUF_SIZE \
(sizeof(struct fuse_out_header) + \
max(sizeof(struct fuse_notify_inval_inode_out), \
sizeof(struct fuse_notify_inval_entry_out) + NAME_MAX + 1))
struct fuse_invalidate_node {
- char inval_buf[INVAL_BUF_SIZE];
+ errnomask_t errnomask;
struct list_head next;
+ char inval_buf[INVAL_BUF_SIZE];
};
typedef struct fuse_invalidate_node fuse_invalidate_node_t;
@@ -209,6 +215,7 @@ struct fuse_timed_message {
struct fuse_out_header fuse_out_header;
void *fuse_message_body;
struct timespec scheduled_ts;
+ errnomask_t errnomask;
struct list_head next;
};
typedef struct fuse_timed_message fuse_timed_message_t;
generated by cgit (git 2.34.1) at 2025-11-04 11:22:30 +0000