1 /* 2 * 9p backend 3 * 4 * Copyright IBM, Corp. 2011 5 * 6 * Authors: 7 * Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> 8 * 9 * This work is licensed under the terms of the GNU GPL, version 2. See 10 * the COPYING file in the top-level directory. 11 * 12 */ 13 14 #include "qemu/osdep.h" 15 #include "fsdev/qemu-fsdev.h" 16 #include "qemu/thread.h" 17 #include "qemu/coroutine.h" 18 #include "coth.h" 19 20 int coroutine_fn v9fs_co_llistxattr(V9fsPDU *pdu, V9fsPath *path, void *value, 21 size_t size) 22 { 23 int err; 24 V9fsState *s = pdu->s; 25 26 if (v9fs_request_cancelled(pdu)) { 27 return -EINTR; 28 } 29 v9fs_path_read_lock(s); 30 v9fs_co_run_in_worker( 31 { 32 err = s->ops->llistxattr(&s->ctx, path, value, size); 33 if (err < 0) { 34 err = -errno; 35 } 36 }); 37 v9fs_path_unlock(s); 38 return err; 39 } 40 41 int coroutine_fn v9fs_co_lgetxattr(V9fsPDU *pdu, V9fsPath *path, 42 V9fsString *xattr_name, void *value, 43 size_t size) 44 { 45 int err; 46 V9fsState *s = pdu->s; 47 48 if (v9fs_request_cancelled(pdu)) { 49 return -EINTR; 50 } 51 v9fs_path_read_lock(s); 52 v9fs_co_run_in_worker( 53 { 54 err = s->ops->lgetxattr(&s->ctx, path, 55 xattr_name->data, 56 value, size); 57 if (err < 0) { 58 err = -errno; 59 } 60 }); 61 v9fs_path_unlock(s); 62 return err; 63 } 64 65 int coroutine_fn v9fs_co_lsetxattr(V9fsPDU *pdu, V9fsPath *path, 66 V9fsString *xattr_name, void *value, 67 size_t size, int flags) 68 { 69 int err; 70 V9fsState *s = pdu->s; 71 72 if (v9fs_request_cancelled(pdu)) { 73 return -EINTR; 74 } 75 v9fs_path_read_lock(s); 76 v9fs_co_run_in_worker( 77 { 78 err = s->ops->lsetxattr(&s->ctx, path, 79 xattr_name->data, value, 80 size, flags); 81 if (err < 0) { 82 err = -errno; 83 } 84 }); 85 v9fs_path_unlock(s); 86 return err; 87 } 88 89 int coroutine_fn v9fs_co_lremovexattr(V9fsPDU *pdu, V9fsPath *path, 90 V9fsString *xattr_name) 91 { 92 int err; 93 V9fsState *s = pdu->s; 94 95 if (v9fs_request_cancelled(pdu)) { 96 return -EINTR; 97 } 98 v9fs_path_read_lock(s); 99 v9fs_co_run_in_worker( 100 { 101 err = s->ops->lremovexattr(&s->ctx, path, xattr_name->data); 102 if (err < 0) { 103 err = -errno; 104 } 105 }); 106 v9fs_path_unlock(s); 107 return err; 108 } 109