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-rw-r--r--api/src/glfs-fops.c36
-rw-r--r--api/src/glfs-handleops.c15
-rw-r--r--api/src/glfs-internal.h20
-rw-r--r--api/src/glfs-resolve.c10
4 files changed, 81 insertions, 0 deletions
diff --git a/api/src/glfs-fops.c b/api/src/glfs-fops.c
index 5ea54567d74..67d5616fe21 100644
--- a/api/src/glfs-fops.c
+++ b/api/src/glfs-fops.c
@@ -124,6 +124,7 @@ retry:
}
ret = syncop_open (subvol, &loc, flags, glfd->fd);
+ DECODE_SYNCOP_ERR (ret);
ESTALE_RETRY (ret, errno, reval, &loc, retry);
out:
@@ -169,6 +170,7 @@ glfs_close (struct glfs_fd *glfd)
}
ret = syncop_flush (subvol, fd);
+ DECODE_SYNCOP_ERR (ret);
out:
fs = glfd->fs;
glfs_fd_destroy (glfd);
@@ -273,6 +275,7 @@ glfs_fstat (struct glfs_fd *glfd, struct stat *stat)
}
ret = syncop_fstat (subvol, fd, &iatt);
+ DECODE_SYNCOP_ERR (ret);
if (ret == 0 && stat)
glfs_iatt_to_stat (glfd->fs, &iatt, stat);
@@ -392,9 +395,11 @@ retry:
if (ret == 0) {
ret = syncop_open (subvol, &loc, flags, glfd->fd);
+ DECODE_SYNCOP_ERR (ret);
} else {
ret = syncop_create (subvol, &loc, flags, mode, glfd->fd,
xattr_req, &iatt);
+ DECODE_SYNCOP_ERR (ret);
}
ESTALE_RETRY (ret, errno, reval, &loc, retry);
@@ -484,6 +489,7 @@ glfs_preadv (struct glfs_fd *glfd, const struct iovec *iovec, int iovcnt,
size = iov_length (iovec, iovcnt);
ret = syncop_readv (subvol, fd, size, offset, 0, &iov, &cnt, &iobref);
+ DECODE_SYNCOP_ERR (ret);
if (ret <= 0)
goto out;
@@ -833,6 +839,7 @@ glfs_pwritev (struct glfs_fd *glfd, const struct iovec *iovec, int iovcnt,
iov.iov_len = size;
ret = syncop_writev (subvol, fd, &iov, 1, offset, iobref, flags);
+ DECODE_SYNCOP_ERR (ret);
iobuf_unref (iobuf);
iobref_unref (iobref);
@@ -1005,6 +1012,7 @@ glfs_fsync (struct glfs_fd *glfd)
}
ret = syncop_fsync (subvol, fd, 0);
+ DECODE_SYNCOP_ERR (ret);
out:
if (fd)
fd_unref (fd);
@@ -1079,6 +1087,7 @@ glfs_fdatasync (struct glfs_fd *glfd)
}
ret = syncop_fsync (subvol, fd, 1);
+ DECODE_SYNCOP_ERR (ret);
out:
if (fd)
fd_unref (fd);
@@ -1120,6 +1129,7 @@ glfs_ftruncate (struct glfs_fd *glfd, off_t offset)
}
ret = syncop_ftruncate (subvol, fd, offset);
+ DECODE_SYNCOP_ERR (ret);
out:
if (fd)
fd_unref (fd);
@@ -1188,6 +1198,7 @@ retry:
goto out;
ret = syncop_access (subvol, &loc, mode);
+ DECODE_SYNCOP_ERR (ret);
ESTALE_RETRY (ret, errno, reval, &loc, retry);
out:
@@ -1263,6 +1274,7 @@ retry:
}
ret = syncop_symlink (subvol, &loc, data, xattr_req, &iatt);
+ DECODE_SYNCOP_ERR (ret);
ESTALE_RETRY (ret, errno, reval, &loc, retry);
@@ -1313,6 +1325,7 @@ retry:
}
ret = syncop_readlink (subvol, &loc, &linkval, bufsiz);
+ DECODE_SYNCOP_ERR (ret);
if (ret > 0) {
memcpy (buf, linkval, ret);
GF_FREE (linkval);
@@ -1392,6 +1405,7 @@ retry:
}
ret = syncop_mknod (subvol, &loc, mode, dev, xattr_req, &iatt);
+ DECODE_SYNCOP_ERR (ret);
ESTALE_RETRY (ret, errno, reval, &loc, retry);
@@ -1473,6 +1487,7 @@ retry:
}
ret = syncop_mkdir (subvol, &loc, mode, xattr_req, &iatt);
+ DECODE_SYNCOP_ERR (ret);
ESTALE_RETRY (ret, errno, reval, &loc, retry);
@@ -1522,6 +1537,7 @@ retry:
}
ret = syncop_unlink (subvol, &loc);
+ DECODE_SYNCOP_ERR (ret);
ESTALE_RETRY (ret, errno, reval, &loc, retry);
@@ -1568,6 +1584,7 @@ retry:
}
ret = syncop_rmdir (subvol, &loc, 0);
+ DECODE_SYNCOP_ERR (ret);
ESTALE_RETRY (ret, errno, reval, &loc, retry);
@@ -1631,6 +1648,7 @@ retrynew:
/* TODO: check if new or old is a prefix of the other, and fail EINVAL */
ret = syncop_rename (subvol, &oldloc, &newloc);
+ DECODE_SYNCOP_ERR (ret);
if (ret == -1 && errno == ESTALE) {
if (reval < DEFAULT_REVAL_COUNT) {
@@ -1708,6 +1726,7 @@ retrynew:
newloc.inode = inode_ref (oldloc.inode);
ret = syncop_link (subvol, &oldloc, &newloc);
+ DECODE_SYNCOP_ERR (ret);
if (ret == -1 && errno == ESTALE) {
loc_wipe (&oldloc);
@@ -1782,6 +1801,7 @@ retry:
}
ret = syncop_opendir (subvol, &loc, glfd->fd);
+ DECODE_SYNCOP_ERR (ret);
ESTALE_RETRY (ret, errno, reval, &loc, retry);
out:
@@ -1972,6 +1992,7 @@ glfd_entry_refresh (struct glfs_fd *glfd, int plus)
else
ret = syncop_readdir (subvol, fd, 131072, glfd->offset,
&entries);
+ DECODE_SYNCOP_ERR (ret);
if (ret >= 0) {
if (plus)
gf_link_inodes_from_dirent (THIS, fd->inode, &entries);
@@ -2150,6 +2171,7 @@ retry:
goto out;
ret = syncop_statfs (subvol, &loc, buf);
+ DECODE_SYNCOP_ERR (ret);
ESTALE_RETRY (ret, errno, reval, &loc, retry);
out:
@@ -2191,6 +2213,7 @@ retry:
goto out;
ret = syncop_setattr (subvol, &loc, iatt, valid, 0, 0);
+ DECODE_SYNCOP_ERR (ret);
ESTALE_RETRY (ret, errno, reval, &loc, retry);
out:
@@ -2226,6 +2249,7 @@ glfs_fsetattr (struct glfs_fd *glfd, struct iatt *iatt, int valid)
}
ret = syncop_fsetattr (subvol, fd, iatt, valid, 0, 0);
+ DECODE_SYNCOP_ERR (ret);
out:
if (fd)
fd_unref (fd);
@@ -2442,6 +2466,7 @@ retry:
goto out;
ret = syncop_getxattr (subvol, &loc, &xattr, name);
+ DECODE_SYNCOP_ERR (ret);
ESTALE_RETRY (ret, errno, reval, &loc, retry);
@@ -2500,6 +2525,7 @@ glfs_fgetxattr (struct glfs_fd *glfd, const char *name, void *value,
}
ret = syncop_fgetxattr (subvol, fd, &xattr, name);
+ DECODE_SYNCOP_ERR (ret);
if (ret)
goto out;
@@ -2570,6 +2596,7 @@ retry:
goto out;
ret = syncop_getxattr (subvol, &loc, &xattr, NULL);
+ DECODE_SYNCOP_ERR (ret);
ESTALE_RETRY (ret, errno, reval, &loc, retry);
@@ -2625,6 +2652,7 @@ glfs_flistxattr (struct glfs_fd *glfd, void *value, size_t size)
}
ret = syncop_fgetxattr (subvol, fd, &xattr, NULL);
+ DECODE_SYNCOP_ERR (ret);
if (ret)
goto out;
@@ -2697,6 +2725,7 @@ retry:
}
ret = syncop_setxattr (subvol, &loc, xattr, flags);
+ DECODE_SYNCOP_ERR (ret);
ESTALE_RETRY (ret, errno, reval, &loc, retry);
@@ -2760,6 +2789,7 @@ glfs_fsetxattr (struct glfs_fd *glfd, const char *name, const void *value,
}
ret = syncop_fsetxattr (subvol, fd, xattr, flags);
+ DECODE_SYNCOP_ERR (ret);
out:
if (xattr)
dict_unref (xattr);
@@ -2803,6 +2833,7 @@ retry:
goto out;
ret = syncop_removexattr (subvol, &loc, name);
+ DECODE_SYNCOP_ERR (ret);
ESTALE_RETRY (ret, errno, reval, &loc, retry);
@@ -2853,6 +2884,7 @@ glfs_fremovexattr (struct glfs_fd *glfd, const char *name)
}
ret = syncop_fremovexattr (subvol, fd, name);
+ DECODE_SYNCOP_ERR (ret);
out:
if (fd)
fd_unref (fd);
@@ -2887,6 +2919,7 @@ glfs_fallocate (struct glfs_fd *glfd, int keep_size, off_t offset, size_t len)
}
ret = syncop_fallocate (subvol, fd, keep_size, offset, len);
+ DECODE_SYNCOP_ERR (ret);
out:
if (fd)
fd_unref(fd);
@@ -2921,6 +2954,7 @@ glfs_discard (struct glfs_fd *glfd, off_t offset, size_t len)
}
ret = syncop_discard (subvol, fd, offset, len);
+ DECODE_SYNCOP_ERR (ret);
out:
if (fd)
fd_unref(fd);
@@ -2952,6 +2986,7 @@ glfs_zerofill (struct glfs_fd *glfd, off_t offset, off_t len)
}
ret = syncop_zerofill (subvol, fd, offset, len);
+ DECODE_SYNCOP_ERR (ret);
out:
if (fd)
fd_unref(fd);
@@ -3200,6 +3235,7 @@ glfs_posix_lock (struct glfs_fd *glfd, int cmd, struct flock *flock)
gf_flock_from_flock (&gf_flock, flock);
gf_flock_from_flock (&saved_flock, flock);
ret = syncop_lk (subvol, fd, cmd, &gf_flock);
+ DECODE_SYNCOP_ERR (ret);
gf_flock_to_flock (&gf_flock, flock);
if (ret == 0 && (cmd == F_SETLK || cmd == F_SETLKW))
diff --git a/api/src/glfs-handleops.c b/api/src/glfs-handleops.c
index 0f996d3a2da..5bba38b5f0c 100644
--- a/api/src/glfs-handleops.c
+++ b/api/src/glfs-handleops.c
@@ -152,6 +152,7 @@ glfs_h_stat (struct glfs *fs, struct glfs_object *object, struct stat *stat)
/* fop/op */
ret = syncop_stat (subvol, &loc, &iatt);
+ DECODE_SYNCOP_ERR (ret);
/* populate out args */
if (!ret && stat) {
@@ -258,6 +259,7 @@ glfs_h_setattrs (struct glfs *fs, struct glfs_object *object, struct stat *stat,
/* fop/op */
ret = syncop_setattr (subvol, &loc, &iatt, glvalid, 0, 0);
+ DECODE_SYNCOP_ERR (ret);
out:
loc_wipe (&loc);
@@ -331,6 +333,7 @@ glfs_h_open (struct glfs *fs, struct glfs_object *object, int flags)
/* fop/op */
ret = syncop_open (subvol, &loc, flags, glfd->fd);
+ DECODE_SYNCOP_ERR (ret);
out:
loc_wipe (&loc);
@@ -420,6 +423,7 @@ glfs_h_creat (struct glfs *fs, struct glfs_object *parent, const char *path,
/* fop/op */
ret = syncop_create (subvol, &loc, flags, mode, glfd->fd,
xattr_req, &iatt);
+ DECODE_SYNCOP_ERR (ret);
/* populate out args */
if (ret == 0) {
@@ -518,6 +522,7 @@ glfs_h_mkdir (struct glfs *fs, struct glfs_object *parent, const char *path,
/* fop/op */
ret = syncop_mkdir (subvol, &loc, mode, xattr_req, &iatt);
+ DECODE_SYNCOP_ERR (ret);
/* populate out args */
if ( ret == 0 ) {
@@ -606,6 +611,7 @@ glfs_h_mknod (struct glfs *fs, struct glfs_object *parent, const char *path,
/* fop/op */
ret = syncop_mknod (subvol, &loc, mode, dev, xattr_req, &iatt);
+ DECODE_SYNCOP_ERR (ret);
/* populate out args */
if (ret == 0) {
@@ -676,11 +682,13 @@ glfs_h_unlink (struct glfs *fs, struct glfs_object *parent, const char *path)
if (!IA_ISDIR(loc.inode->ia_type)) {
ret = syncop_unlink (subvol, &loc);
+ DECODE_SYNCOP_ERR (ret);
if (ret != 0) {
goto out;
}
} else {
ret = syncop_rmdir (subvol, &loc, 0);
+ DECODE_SYNCOP_ERR (ret);
if (ret != 0) {
goto out;
}
@@ -755,6 +763,7 @@ glfs_h_opendir (struct glfs *fs, struct glfs_object *object)
/* fop/op */
ret = syncop_opendir (subvol, &loc, glfd->fd);
+ DECODE_SYNCOP_ERR (ret);
out:
loc_wipe (&loc);
@@ -846,6 +855,7 @@ glfs_h_create_from_handle (struct glfs *fs, unsigned char *handle, int len,
}
ret = syncop_lookup (subvol, &loc, 0, &iatt, 0, 0);
+ DECODE_SYNCOP_ERR (ret);
if (ret) {
gf_log (subvol->name, GF_LOG_WARNING,
"inode refresh of %s failed: %s",
@@ -934,6 +944,7 @@ glfs_h_truncate (struct glfs *fs, struct glfs_object *object, off_t offset)
/* fop/op */
ret = syncop_truncate (subvol, &loc, (off_t)offset);
+ DECODE_SYNCOP_ERR (ret);
/* populate out args */
if (ret == 0)
@@ -1006,6 +1017,7 @@ glfs_h_symlink (struct glfs *fs, struct glfs_object *parent, const char *name,
/* fop/op */
ret = syncop_symlink (subvol, &loc, data, xattr_req, &iatt);
+ DECODE_SYNCOP_ERR (ret);
/* populate out args */
if (ret == 0) {
@@ -1081,6 +1093,7 @@ glfs_h_readlink (struct glfs *fs, struct glfs_object *object, char *buf,
/* fop/op */
ret = syncop_readlink (subvol, &loc, &linkval, bufsiz);
+ DECODE_SYNCOP_ERR (ret);
/* populate out args */
if (ret > 0)
@@ -1166,6 +1179,7 @@ glfs_h_link (struct glfs *fs, struct glfs_object *linksrc,
/* fop/op */
ret = syncop_link (subvol, &oldloc, &newloc);
+ DECODE_SYNCOP_ERR (ret);
if (ret == 0)
/* TODO: No iatt to pass as there has been no lookup */
@@ -1256,6 +1270,7 @@ glfs_h_rename (struct glfs *fs, struct glfs_object *olddir, const char *oldname,
/* TODO: check if new or old is a prefix of the other, and fail EINVAL */
ret = syncop_rename (subvol, &oldloc, &newloc);
+ DECODE_SYNCOP_ERR (ret);
if (ret == 0)
inode_rename (oldloc.parent->table, oldloc.parent, oldloc.name,
diff --git a/api/src/glfs-internal.h b/api/src/glfs-internal.h
index ec1d5579df7..f04557323a0 100644
--- a/api/src/glfs-internal.h
+++ b/api/src/glfs-internal.h
@@ -18,6 +18,26 @@
#define DEFAULT_REVAL_COUNT 1
+/*
+ * syncop_xxx() calls are executed in two ways, one is inside a synctask where
+ * the executing function will do 'swapcontext' and the other is without
+ * synctask where the executing thread is made to wait using pthread_cond_wait.
+ * Executing thread may change when syncop_xxx() is executed inside a synctask.
+ * This leads to errno_location change i.e. errno may give errno of
+ * non-executing thread. So errno is not touched inside a synctask execution.
+ * All gfapi calls are executed using the second way of executing syncop_xxx()
+ * where the executing thread waits using pthread_cond_wait so it is ok to set
+ * errno in these cases. The following macro makes syncop_xxx() behave just
+ * like a system call, where -1 is returned and errno is set when a failure
+ * occurs.
+ */
+#define DECODE_SYNCOP_ERR(ret) do { \
+ if (ret < 0) { \
+ errno = -ret; \
+ ret = -1; \
+ } \
+ } while (0)
+
#define ESTALE_RETRY(ret,errno,reval,loc,label) do { \
if (ret == -1 && errno == ESTALE) { \
if (reval < DEFAULT_REVAL_COUNT) { \
diff --git a/api/src/glfs-resolve.c b/api/src/glfs-resolve.c
index 4ca2eb6fcf4..c88330aa48e 100644
--- a/api/src/glfs-resolve.c
+++ b/api/src/glfs-resolve.c
@@ -48,6 +48,7 @@ glfs_first_lookup_safe (xlator_t *subvol)
loc.name = "";
ret = syncop_lookup (subvol, &loc, 0, 0, 0, 0);
+ DECODE_SYNCOP_ERR (ret);
gf_log (subvol->name, GF_LOG_DEBUG, "first lookup complete %d", ret);
@@ -98,6 +99,7 @@ glfs_refresh_inode_safe (xlator_t *subvol, inode_t *oldinode)
return NULL;
ret = syncop_lookup (subvol, &loc, 0, &iatt, 0, 0);
+ DECODE_SYNCOP_ERR (ret);
if (ret) {
gf_log (subvol->name, GF_LOG_WARNING,
@@ -181,6 +183,7 @@ glfs_resolve_symlink (struct glfs *fs, xlator_t *subvol, inode_t *inode,
loc.path = rpath;
ret = syncop_readlink (subvol, &loc, &path, 4096);
+ DECODE_SYNCOP_ERR (ret);
if (ret < 0)
goto out;
@@ -210,6 +213,7 @@ glfs_resolve_base (struct glfs *fs, xlator_t *subvol, inode_t *inode,
goto out;
ret = syncop_lookup (subvol, &loc, NULL, iatt, NULL, NULL);
+ DECODE_SYNCOP_ERR (ret);
out:
loc_wipe (&loc);
@@ -268,6 +272,7 @@ glfs_resolve_component (struct glfs *fs, xlator_t *subvol, inode_t *parent,
}
ret = syncop_lookup (subvol, &loc, NULL, &ciatt, NULL, NULL);
+ DECODE_SYNCOP_ERR (ret);
if (ret && reval) {
inode_unref (loc.inode);
loc.inode = inode_new (parent->table);
@@ -292,6 +297,7 @@ glfs_resolve_component (struct glfs *fs, xlator_t *subvol, inode_t *parent,
ret = syncop_lookup (subvol, &loc, xattr_req, &ciatt,
NULL, NULL);
+ DECODE_SYNCOP_ERR (ret);
}
if (ret)
goto out;
@@ -515,6 +521,7 @@ glfs_migrate_fd_locks_safe (struct glfs *fs, xlator_t *oldsubvol, fd_t *oldfd,
ret = syncop_fgetxattr (oldsubvol, oldfd, &lockinfo,
GF_XATTR_LOCKINFO_KEY);
+ DECODE_SYNCOP_ERR (ret);
if (ret < 0) {
gf_log (fs->volname, GF_LOG_WARNING,
"fgetxattr (%s) failed (%s) on graph %s (%d)",
@@ -533,6 +540,7 @@ glfs_migrate_fd_locks_safe (struct glfs *fs, xlator_t *oldsubvol, fd_t *oldfd,
}
ret = syncop_fsetxattr (newsubvol, newfd, lockinfo, 0);
+ DECODE_SYNCOP_ERR (ret);
if (ret < 0) {
gf_log (fs->volname, GF_LOG_WARNING,
"fsetxattr (%s) failed (%s) on graph %s (%d)",
@@ -568,6 +576,7 @@ glfs_migrate_fd_safe (struct glfs *fs, xlator_t *newsubvol, fd_t *oldfd)
if (!oldsubvol->switched) {
ret = syncop_fsync (oldsubvol, oldfd, 0);
+ DECODE_SYNCOP_ERR (ret);
if (ret) {
gf_log (fs->volname, GF_LOG_WARNING,
"fsync() failed (%s) on %s graph %s (%d)",
@@ -614,6 +623,7 @@ glfs_migrate_fd_safe (struct glfs *fs, xlator_t *newsubvol, fd_t *oldfd)
ret = syncop_open (newsubvol, &loc,
oldfd->flags & ~(O_TRUNC|O_EXCL|O_CREAT),
newfd);
+ DECODE_SYNCOP_ERR (ret);
loc_wipe (&loc);
if (ret) {
generated by cgit (git 2.34.1) at 2024-11-16 13:24:31 +0000