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ceph: check the cephx mds auth access for setattr

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If we hit any failre just try to force it to do the sync setattr.

Link: https://tracker.ceph.com/issues/61333
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Milind Changire <mchangir@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Xiubo Li 2023-11-08 10:54:17 +08:00 committed by Ilya Dryomov
parent 596afb0b89
commit ded6783040
1 changed files with 37 additions and 9 deletions
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46
fs/ceph/inode.c
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@ -2480,6 +2480,34 @@ int __ceph_setattr(struct mnt_idmap *idmap, struct inode *inode,
bool lock_snap_rwsem = false;
bool fill_fscrypt;
int truncate_retry = 20; /* The RMW will take around 50ms */
struct dentry *dentry;
char *path;
int pathlen;
u64 pathbase;
bool do_sync = false;
dentry = d_find_alias(inode);
if (!dentry) {
do_sync = true;
} else {
path = ceph_mdsc_build_path(mdsc, dentry, &pathlen, &pathbase, 0);
if (IS_ERR(path)) {
do_sync = true;
err = 0;
} else {
err = ceph_mds_check_access(mdsc, path, MAY_WRITE);
}
ceph_mdsc_free_path(path, pathlen);
dput(dentry);
/* For none EACCES cases will let the MDS do the mds auth check */
if (err == -EACCES) {
return err;
} else if (err < 0) {
do_sync = true;
err = 0;
}
}
retry:
prealloc_cf = ceph_alloc_cap_flush();
@ -2526,7 +2554,7 @@ retry:
/* It should never be re-set once set */
WARN_ON_ONCE(ci->fscrypt_auth);
if (issued & CEPH_CAP_AUTH_EXCL) {
if (!do_sync && (issued & CEPH_CAP_AUTH_EXCL)) {
dirtied |= CEPH_CAP_AUTH_EXCL;
kfree(ci->fscrypt_auth);
ci->fscrypt_auth = (u8 *)cia->fscrypt_auth;
@ -2555,7 +2583,7 @@ retry:
ceph_vinop(inode),
from_kuid(&init_user_ns, inode->i_uid),
from_kuid(&init_user_ns, attr->ia_uid));
if (issued & CEPH_CAP_AUTH_EXCL) {
if (!do_sync && (issued & CEPH_CAP_AUTH_EXCL)) {
inode->i_uid = fsuid;
dirtied |= CEPH_CAP_AUTH_EXCL;
} else if ((issued & CEPH_CAP_AUTH_SHARED) == 0 ||
@ -2573,7 +2601,7 @@ retry:
ceph_vinop(inode),
from_kgid(&init_user_ns, inode->i_gid),
from_kgid(&init_user_ns, attr->ia_gid));
if (issued & CEPH_CAP_AUTH_EXCL) {
if (!do_sync && (issued & CEPH_CAP_AUTH_EXCL)) {
inode->i_gid = fsgid;
dirtied |= CEPH_CAP_AUTH_EXCL;
} else if ((issued & CEPH_CAP_AUTH_SHARED) == 0 ||
@ -2587,7 +2615,7 @@ retry:
if (ia_valid & ATTR_MODE) {
doutc(cl, "%p %llx.%llx mode 0%o -> 0%o\n", inode,
ceph_vinop(inode), inode->i_mode, attr->ia_mode);
if (issued & CEPH_CAP_AUTH_EXCL) {
if (!do_sync && (issued & CEPH_CAP_AUTH_EXCL)) {
inode->i_mode = attr->ia_mode;
dirtied |= CEPH_CAP_AUTH_EXCL;
} else if ((issued & CEPH_CAP_AUTH_SHARED) == 0 ||
@ -2606,11 +2634,11 @@ retry:
inode, ceph_vinop(inode),
atime.tv_sec, atime.tv_nsec,
attr->ia_atime.tv_sec, attr->ia_atime.tv_nsec);
if (issued & CEPH_CAP_FILE_EXCL) {
if (!do_sync && (issued & CEPH_CAP_FILE_EXCL)) {
ci->i_time_warp_seq++;
inode_set_atime_to_ts(inode, attr->ia_atime);
dirtied |= CEPH_CAP_FILE_EXCL;
} else if ((issued & CEPH_CAP_FILE_WR) &&
} else if (!do_sync && (issued & CEPH_CAP_FILE_WR) &&
timespec64_compare(&atime,
&attr->ia_atime) < 0) {
inode_set_atime_to_ts(inode, attr->ia_atime);
@ -2646,7 +2674,7 @@ retry:
CEPH_FSCRYPT_BLOCK_SIZE));
req->r_fscrypt_file = attr->ia_size;
fill_fscrypt = true;
} else if ((issued & CEPH_CAP_FILE_EXCL) && attr->ia_size >= isize) {
} else if (!do_sync && (issued & CEPH_CAP_FILE_EXCL) && attr->ia_size >= isize) {
if (attr->ia_size > isize) {
i_size_write(inode, attr->ia_size);
inode->i_blocks = calc_inode_blocks(attr->ia_size);
@ -2683,11 +2711,11 @@ retry:
inode, ceph_vinop(inode),
mtime.tv_sec, mtime.tv_nsec,
attr->ia_mtime.tv_sec, attr->ia_mtime.tv_nsec);
if (issued & CEPH_CAP_FILE_EXCL) {
if (!do_sync && (issued & CEPH_CAP_FILE_EXCL)) {
ci->i_time_warp_seq++;
inode_set_mtime_to_ts(inode, attr->ia_mtime);
dirtied |= CEPH_CAP_FILE_EXCL;
} else if ((issued & CEPH_CAP_FILE_WR) &&
} else if (!do_sync && (issued & CEPH_CAP_FILE_WR) &&
timespec64_compare(&mtime, &attr->ia_mtime) < 0) {
inode_set_mtime_to_ts(inode, attr->ia_mtime);
dirtied |= CEPH_CAP_FILE_WR;