From cf9610f9116d55c5a66ef9f1faecacabd93a9322 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Mon, 24 Aug 2026 08:46:03 -0700 Subject: Merge tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control updates from Linus Walleij: "Core changes: - Use the non-blocking mux_state_try_select() in the generic MUX pin control back-end - Free pin maps on pinctrl_generic_to_map() failure in the core helpers New hardware pin control: - Qualcomm Maili TLMM SoC, PMG1110 PMIC, and Eliza LPASS LPI TLMM SoC (this is for the low power audio, LPASS = Low Power Audio SubSystem portions) - Upboard support on top of the Intel pin controller - Apple T6030 and T6031 support (just compatible strings) - Samsung Exynos 8855 SoC - Mediatek MT6858 SoC - Rockchip RK3308B and RV1106 SoCs - Airoha EN7523 and AN7563 SoCs Improvements: - Qualcomm TLMM GPIOs are unconditionally marked as wakeup capable - Qualcomm improvements on top of the Qualcomm PDC (power domain controller) irqchip improvements from tglx:s tree - Qualcomm IPQ806x and IPQ9650 non-urgent pin grop fixups - The NPCM8xx driver has been put into shape fixing many pin and group definitions - Some non-urgent Tegra 264 pin assignments are fixed up - Some non-urgent fixups to Airoha AN7581 and AN7583 registers and pin assignments, missing features etc" * tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (130 commits) dt-bindings: pinctrl: Convert TI DA850 pupd to DT schema pinctrl: meson: sync some modify from A4 pinctrl: meson: a4: Add input enable pin configuration pinctrl: realtek: rtd1625: remove unused group name spdif_sel pinctrl: realtek: rtd1625: fix base_bit for VE4 GPIO 13 dt-bindings: pinctrl: microchip,pic32mzda-pinctrl: Convert to DT schema Revert "Merge branch 'ib-rsk7204' into devel" pinctrl: rockchip: Add RV1106 pinctrl support dt-bindings: pinctrl: rockchip: Add RV1106 compatible pinctrl: rockchip: Decode drive strength in the get function pinctrl: fix PINCTRL_GENERIC_MUX not always being selectable pinctrl: airoha: add support of an7563 SoC dt-bindings: pinctrl: airoha: add support of an7563 pin controller pinctrl: airoha: try to find chip scu node by phandle first pinctrl: airoha: add support of en7523 SoC dt-bindings: pinctrl: airoha: add support of en7523 pin controller pinctrl: airoha: an7583: add support for olt pinmux pinctrl: airoha: an7583: add support for pon_alt pinmux pinctrl: airoha: an7583: add support for npu_uart pinmux dt-bindings: pinctrl: airoha: an7583: add missed features ... --- fs/ceph/acl.c | 259 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 259 insertions(+) create mode 100644 fs/ceph/acl.c (limited to 'fs/ceph/acl.c') diff --git a/fs/ceph/acl.c b/fs/ceph/acl.c new file mode 100644 index 000000000..85d3dd48b --- /dev/null +++ b/fs/ceph/acl.c @@ -0,0 +1,259 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * linux/fs/ceph/acl.c + * + * Copyright (C) 2013 Guangliang Zhao, + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "super.h" +#include "mds_client.h" + +static inline void ceph_set_cached_acl(struct inode *inode, + int type, struct posix_acl *acl) +{ + struct ceph_inode_info *ci = ceph_inode(inode); + + spin_lock(&ci->i_ceph_lock); + if (__ceph_caps_issued_mask_metric(ci, CEPH_CAP_XATTR_SHARED, 0)) + set_cached_acl(inode, type, acl); + else + forget_cached_acl(inode, type); + spin_unlock(&ci->i_ceph_lock); +} + +struct posix_acl *ceph_get_acl(struct inode *inode, int type, bool rcu) +{ + struct ceph_client *cl = ceph_inode_to_client(inode); + int size; + unsigned int retry_cnt = 0; + const char *name; + char *value = NULL; + struct posix_acl *acl; + + if (rcu) + return ERR_PTR(-ECHILD); + + switch (type) { + case ACL_TYPE_ACCESS: + name = XATTR_NAME_POSIX_ACL_ACCESS; + break; + case ACL_TYPE_DEFAULT: + name = XATTR_NAME_POSIX_ACL_DEFAULT; + break; + default: + BUG(); + } + +retry: + size = __ceph_getxattr(inode, name, "", 0); + if (size > 0) { + value = kzalloc(size, GFP_NOFS); + if (!value) + return ERR_PTR(-ENOMEM); + size = __ceph_getxattr(inode, name, value, size); + } + + if (size == -ERANGE && retry_cnt < 10) { + retry_cnt++; + kfree(value); + value = NULL; + goto retry; + } + + if (size > 0) { + acl = posix_acl_from_xattr(&init_user_ns, value, size); + } else if (size == -ENODATA || size == 0) { + acl = NULL; + } else { + pr_err_ratelimited_client(cl, "%llx.%llx failed, err=%d\n", + ceph_vinop(inode), size); + acl = ERR_PTR(-EIO); + } + + kfree(value); + + if (!IS_ERR(acl)) + ceph_set_cached_acl(inode, type, acl); + + return acl; +} + +int ceph_set_acl(struct mnt_idmap *idmap, struct dentry *dentry, + struct posix_acl *acl, int type) +{ + int ret = 0; + size_t size = 0; + const char *name = NULL; + char *value = NULL; + struct iattr newattrs; + struct inode *inode = d_inode(dentry); + struct timespec64 old_ctime = inode_get_ctime(inode); + umode_t new_mode = inode->i_mode, old_mode = inode->i_mode; + + if (ceph_snap(inode) != CEPH_NOSNAP) { + ret = -EROFS; + goto out; + } + + switch (type) { + case ACL_TYPE_ACCESS: + name = XATTR_NAME_POSIX_ACL_ACCESS; + if (acl) { + ret = posix_acl_update_mode(idmap, inode, + &new_mode, &acl); + if (ret) + goto out; + } + break; + case ACL_TYPE_DEFAULT: + if (!S_ISDIR(inode->i_mode)) { + ret = acl ? -EINVAL : 0; + goto out; + } + name = XATTR_NAME_POSIX_ACL_DEFAULT; + break; + default: + ret = -EINVAL; + goto out; + } + + if (acl) { + value = posix_acl_to_xattr(&init_user_ns, acl, &size, GFP_NOFS); + if (!value) { + ret = -ENOMEM; + goto out; + } + } + + if (new_mode != old_mode) { + newattrs.ia_ctime = current_time(inode); + newattrs.ia_mode = new_mode; + newattrs.ia_valid = ATTR_MODE | ATTR_CTIME; + ret = __ceph_setattr(idmap, inode, &newattrs, NULL); + if (ret) + goto out_free; + } + + ret = __ceph_setxattr(inode, name, value, size, 0); + if (ret) { + if (new_mode != old_mode) { + newattrs.ia_ctime = old_ctime; + newattrs.ia_mode = old_mode; + newattrs.ia_valid = ATTR_MODE | ATTR_CTIME; + __ceph_setattr(idmap, inode, &newattrs, NULL); + } + goto out_free; + } + + ceph_set_cached_acl(inode, type, acl); + +out_free: + kfree(value); +out: + return ret; +} + +int ceph_pre_init_acls(struct inode *dir, umode_t *mode, + struct ceph_acl_sec_ctx *as_ctx) +{ + struct posix_acl *acl, *default_acl; + size_t val_size1 = 0, val_size2 = 0; + struct ceph_pagelist *pagelist = NULL; + void *tmp_buf1 = NULL, *tmp_buf2 = NULL; + int err; + + err = posix_acl_create(dir, mode, &default_acl, &acl); + if (err) + return err; + + if (acl) { + err = posix_acl_equiv_mode(acl, mode); + if (err < 0) + goto out_err; + if (err == 0) { + posix_acl_release(acl); + acl = NULL; + } + } + + if (!default_acl && !acl) + return 0; + + err = -ENOMEM; + pagelist = ceph_pagelist_alloc(GFP_KERNEL); + if (!pagelist) + goto out_err; + + err = ceph_pagelist_reserve(pagelist, PAGE_SIZE); + if (err) + goto out_err; + + ceph_pagelist_encode_32(pagelist, acl && default_acl ? 2 : 1); + + if (acl) { + size_t len = strlen(XATTR_NAME_POSIX_ACL_ACCESS); + + err = -ENOMEM; + tmp_buf1 = posix_acl_to_xattr(&init_user_ns, acl, + &val_size1, GFP_KERNEL); + if (!tmp_buf1) + goto out_err; + err = ceph_pagelist_reserve(pagelist, len + val_size1 + 8); + if (err) + goto out_err; + ceph_pagelist_encode_string(pagelist, XATTR_NAME_POSIX_ACL_ACCESS, + len); + ceph_pagelist_encode_32(pagelist, val_size1); + ceph_pagelist_append(pagelist, tmp_buf1, val_size1); + } + if (default_acl) { + size_t len = strlen(XATTR_NAME_POSIX_ACL_DEFAULT); + + err = -ENOMEM; + tmp_buf2 = posix_acl_to_xattr(&init_user_ns, default_acl, + &val_size2, GFP_KERNEL); + if (!tmp_buf2) + goto out_err; + err = ceph_pagelist_reserve(pagelist, len + val_size2 + 8); + if (err) + goto out_err; + ceph_pagelist_encode_string(pagelist, + XATTR_NAME_POSIX_ACL_DEFAULT, len); + ceph_pagelist_encode_32(pagelist, val_size2); + ceph_pagelist_append(pagelist, tmp_buf2, val_size2); + } + + kfree(tmp_buf1); + kfree(tmp_buf2); + + as_ctx->acl = acl; + as_ctx->default_acl = default_acl; + as_ctx->pagelist = pagelist; + return 0; + +out_err: + posix_acl_release(acl); + posix_acl_release(default_acl); + kfree(tmp_buf1); + kfree(tmp_buf2); + if (pagelist) + ceph_pagelist_release(pagelist); + return err; +} + +void ceph_init_inode_acls(struct inode *inode, struct ceph_acl_sec_ctx *as_ctx) +{ + if (!inode) + return; + ceph_set_cached_acl(inode, ACL_TYPE_ACCESS, as_ctx->acl); + ceph_set_cached_acl(inode, ACL_TYPE_DEFAULT, as_ctx->default_acl); +} -- cgit v1.3.1