From: Trond Myklebust <[email protected]>
Rename can cause us to revalidate the access cache, so lets track the
nlinks separately from the mode/uid/gid.
Signed-off-by: Trond Myklebust <[email protected]>
---
fs/nfs/dir.c | 2 +-
fs/nfs/inode.c | 15 ++++++++++-----
fs/nfs/nfs4proc.c | 13 +++++++------
fs/nfs/nfstrace.h | 4 +++-
include/linux/nfs_fs.h | 2 ++
5 files changed, 23 insertions(+), 13 deletions(-)
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index e924d65c125e..f748d2294261 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1711,7 +1711,7 @@ static void nfs_drop_nlink(struct inode *inode)
NFS_I(inode)->attr_gencount = nfs_inc_attr_generation_counter();
nfs_set_cache_invalid(
inode, NFS_INO_INVALID_CHANGE | NFS_INO_INVALID_CTIME |
- NFS_INO_INVALID_OTHER | NFS_INO_REVAL_FORCED);
+ NFS_INO_INVALID_NLINK | NFS_INO_REVAL_FORCED);
spin_unlock(&inode->i_lock);
}
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 3d18e66a4b8f..7bf9138330f2 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -538,7 +538,7 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr, st
if (fattr->valid & NFS_ATTR_FATTR_NLINK)
set_nlink(inode, fattr->nlink);
else if (nfs_server_capable(inode, NFS_CAP_NLINK))
- nfs_set_cache_invalid(inode, NFS_INO_INVALID_OTHER);
+ nfs_set_cache_invalid(inode, NFS_INO_INVALID_NLINK);
if (fattr->valid & NFS_ATTR_FATTR_OWNER)
inode->i_uid = fattr->uid;
else if (nfs_server_capable(inode, NFS_CAP_OWNER))
@@ -801,8 +801,10 @@ static u32 nfs_get_valid_attrmask(struct inode *inode)
reply_mask |= STATX_MTIME;
if (!(cache_validity & NFS_INO_INVALID_SIZE))
reply_mask |= STATX_SIZE;
+ if (!(cache_validity & NFS_INO_INVALID_NLINK))
+ reply_mask |= STATX_NLINK;
if (!(cache_validity & NFS_INO_INVALID_OTHER))
- reply_mask |= STATX_UID | STATX_GID | STATX_MODE | STATX_NLINK;
+ reply_mask |= STATX_UID | STATX_GID | STATX_MODE;
if (!(cache_validity & NFS_INO_INVALID_BLOCKS))
reply_mask |= STATX_BLOCKS;
return reply_mask;
@@ -868,7 +870,9 @@ int nfs_getattr(struct user_namespace *mnt_userns, const struct path *path,
do_update |= cache_validity & NFS_INO_INVALID_MTIME;
if (request_mask & STATX_SIZE)
do_update |= cache_validity & NFS_INO_INVALID_SIZE;
- if (request_mask & (STATX_UID | STATX_GID | STATX_MODE | STATX_NLINK))
+ if (request_mask & STATX_NLINK)
+ do_update |= cache_validity & NFS_INO_INVALID_NLINK;
+ if (request_mask & (STATX_UID | STATX_GID | STATX_MODE))
do_update |= cache_validity & NFS_INO_INVALID_OTHER;
if (request_mask & STATX_BLOCKS)
do_update |= cache_validity & NFS_INO_INVALID_BLOCKS;
@@ -1518,7 +1522,7 @@ static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fat
/* Has the link count changed? */
if ((fattr->valid & NFS_ATTR_FATTR_NLINK) && inode->i_nlink != fattr->nlink)
- invalid |= NFS_INO_INVALID_OTHER;
+ invalid |= NFS_INO_INVALID_NLINK;
ts = inode->i_atime;
if ((fattr->valid & NFS_ATTR_FATTR_ATIME) && !timespec64_equal(&ts, &fattr->atime))
@@ -1942,6 +1946,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
| NFS_INO_INVALID_MTIME
| NFS_INO_INVALID_SIZE
| NFS_INO_INVALID_BLOCKS
+ | NFS_INO_INVALID_NLINK
| NFS_INO_INVALID_OTHER;
if (S_ISDIR(inode->i_mode))
nfs_force_lookup_revalidate(inode);
@@ -2074,7 +2079,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
}
} else if (server->caps & NFS_CAP_NLINK) {
nfsi->cache_validity |= save_cache_validity &
- (NFS_INO_INVALID_OTHER
+ (NFS_INO_INVALID_NLINK
| NFS_INO_REVAL_FORCED);
cache_revalidated = false;
}
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 8dc595ce40ca..a74c1c3c4192 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1167,14 +1167,14 @@ int nfs4_call_sync(struct rpc_clnt *clnt,
static void
nfs4_inc_nlink_locked(struct inode *inode)
{
- nfs_set_cache_invalid(inode, NFS_INO_INVALID_OTHER);
+ nfs_set_cache_invalid(inode, NFS_INO_INVALID_NLINK);
inc_nlink(inode);
}
static void
nfs4_dec_nlink_locked(struct inode *inode)
{
- nfs_set_cache_invalid(inode, NFS_INO_INVALID_OTHER);
+ nfs_set_cache_invalid(inode, NFS_INO_INVALID_NLINK);
drop_nlink(inode);
}
@@ -4717,11 +4717,11 @@ static int nfs4_proc_rename_done(struct rpc_task *task, struct inode *old_dir,
/* Note: If we moved a directory, nlink will change */
nfs4_update_changeattr(old_dir, &res->old_cinfo,
res->old_fattr->time_start,
- NFS_INO_INVALID_OTHER |
+ NFS_INO_INVALID_NLINK |
NFS_INO_INVALID_DATA);
nfs4_update_changeattr(new_dir, &res->new_cinfo,
res->new_fattr->time_start,
- NFS_INO_INVALID_OTHER |
+ NFS_INO_INVALID_NLINK |
NFS_INO_INVALID_DATA);
} else
nfs4_update_changeattr(old_dir, &res->old_cinfo,
@@ -5433,8 +5433,9 @@ static void nfs4_bitmask_set(__u32 bitmask[NFS4_BITMASK_SZ], const __u32 *src,
bitmask[1] |= FATTR4_WORD1_TIME_ACCESS;
if (cache_validity & NFS_INO_INVALID_OTHER)
bitmask[1] |= FATTR4_WORD1_MODE | FATTR4_WORD1_OWNER |
- FATTR4_WORD1_OWNER_GROUP |
- FATTR4_WORD1_NUMLINKS;
+ FATTR4_WORD1_OWNER_GROUP;
+ if (cache_validity & NFS_INO_INVALID_NLINK)
+ bitmask[1] |= FATTR4_WORD1_NUMLINKS;
if (label && label->len && cache_validity & NFS_INO_INVALID_LABEL)
bitmask[2] |= FATTR4_WORD2_SECURITY_LABEL;
if (cache_validity & NFS_INO_INVALID_CTIME)
diff --git a/fs/nfs/nfstrace.h b/fs/nfs/nfstrace.h
index cdba6eebe3cb..a0ebc53160dd 100644
--- a/fs/nfs/nfstrace.h
+++ b/fs/nfs/nfstrace.h
@@ -48,6 +48,7 @@ TRACE_DEFINE_ENUM(NFS_INO_INVALID_OTHER);
TRACE_DEFINE_ENUM(NFS_INO_DATA_INVAL_DEFER);
TRACE_DEFINE_ENUM(NFS_INO_INVALID_BLOCKS);
TRACE_DEFINE_ENUM(NFS_INO_INVALID_XATTR);
+TRACE_DEFINE_ENUM(NFS_INO_INVALID_NLINK);
#define nfs_show_cache_validity(v) \
__print_flags(v, "|", \
@@ -65,7 +66,8 @@ TRACE_DEFINE_ENUM(NFS_INO_INVALID_XATTR);
{ NFS_INO_INVALID_OTHER, "INVALID_OTHER" }, \
{ NFS_INO_DATA_INVAL_DEFER, "DATA_INVAL_DEFER" }, \
{ NFS_INO_INVALID_BLOCKS, "INVALID_BLOCKS" }, \
- { NFS_INO_INVALID_XATTR, "INVALID_XATTR" })
+ { NFS_INO_INVALID_XATTR, "INVALID_XATTR" }, \
+ { NFS_INO_INVALID_NLINK, "INVALID_NLINK" })
TRACE_DEFINE_ENUM(NFS_INO_ADVISE_RDPLUS);
TRACE_DEFINE_ENUM(NFS_INO_STALE);
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 624ffd47a9d4..41165b988dfb 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -246,11 +246,13 @@ struct nfs4_copy_state {
BIT(13) /* Deferred cache invalidation */
#define NFS_INO_INVALID_BLOCKS BIT(14) /* cached blocks are invalid */
#define NFS_INO_INVALID_XATTR BIT(15) /* xattrs are invalid */
+#define NFS_INO_INVALID_NLINK BIT(16) /* cached nlinks is invalid */
#define NFS_INO_INVALID_ATTR (NFS_INO_INVALID_CHANGE \
| NFS_INO_INVALID_CTIME \
| NFS_INO_INVALID_MTIME \
| NFS_INO_INVALID_SIZE \
+ | NFS_INO_INVALID_NLINK \
| NFS_INO_INVALID_OTHER) /* inode metadata is invalid */
/*
--
2.30.2
From: Trond Myklebust <[email protected]>
chown()/chgrp() and chmod() are separate operations, and in addition,
there are mode operations that are performed automatically by the
server. So let's track mode validity separately from the file ownership
validity.
Signed-off-by: Trond Myklebust <[email protected]>
---
fs/nfs/dir.c | 5 +++--
fs/nfs/inode.c | 18 ++++++++++++------
fs/nfs/nfs4proc.c | 14 +++++++++-----
fs/nfs/nfstrace.h | 4 +++-
fs/nfs/write.c | 2 +-
include/linux/nfs_fs.h | 2 ++
6 files changed, 30 insertions(+), 15 deletions(-)
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index f748d2294261..d2835d211a73 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -2948,7 +2948,7 @@ static int nfs_execute_ok(struct inode *inode, int mask)
if (S_ISDIR(inode->i_mode))
return 0;
- if (nfs_check_cache_invalid(inode, NFS_INO_INVALID_OTHER)) {
+ if (nfs_check_cache_invalid(inode, NFS_INO_INVALID_MODE)) {
if (mask & MAY_NOT_BLOCK)
return -ECHILD;
ret = __nfs_revalidate_inode(server, inode);
@@ -3006,7 +3006,8 @@ int nfs_permission(struct user_namespace *mnt_userns,
if (mask & MAY_NOT_BLOCK)
return -ECHILD;
- res = nfs_revalidate_inode(inode, NFS_INO_INVALID_OTHER);
+ res = nfs_revalidate_inode(inode, NFS_INO_INVALID_MODE |
+ NFS_INO_INVALID_OTHER);
if (res == 0)
res = generic_permission(&init_user_ns, inode, mask);
goto out;
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 7bf9138330f2..81e3e140e923 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -199,7 +199,8 @@ void nfs_set_cache_invalid(struct inode *inode, unsigned long flags)
if (have_delegation) {
if (!(flags & NFS_INO_REVAL_FORCED))
- flags &= ~NFS_INO_INVALID_OTHER;
+ flags &= ~(NFS_INO_INVALID_MODE |
+ NFS_INO_INVALID_OTHER);
flags &= ~(NFS_INO_INVALID_CHANGE
| NFS_INO_INVALID_SIZE
| NFS_INO_INVALID_XATTR);
@@ -472,7 +473,7 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr, st
nfsi->cache_validity = 0;
if ((fattr->valid & NFS_ATTR_FATTR_MODE) == 0
&& nfs_server_capable(inode, NFS_CAP_MODE))
- nfs_set_cache_invalid(inode, NFS_INO_INVALID_OTHER);
+ nfs_set_cache_invalid(inode, NFS_INO_INVALID_MODE);
/* Why so? Because we want revalidate for devices/FIFOs, and
* that's precisely what we have in nfs_file_inode_operations.
*/
@@ -803,8 +804,10 @@ static u32 nfs_get_valid_attrmask(struct inode *inode)
reply_mask |= STATX_SIZE;
if (!(cache_validity & NFS_INO_INVALID_NLINK))
reply_mask |= STATX_NLINK;
+ if (!(cache_validity & NFS_INO_INVALID_MODE))
+ reply_mask |= STATX_MODE;
if (!(cache_validity & NFS_INO_INVALID_OTHER))
- reply_mask |= STATX_UID | STATX_GID | STATX_MODE;
+ reply_mask |= STATX_UID | STATX_GID;
if (!(cache_validity & NFS_INO_INVALID_BLOCKS))
reply_mask |= STATX_BLOCKS;
return reply_mask;
@@ -872,7 +875,9 @@ int nfs_getattr(struct user_namespace *mnt_userns, const struct path *path,
do_update |= cache_validity & NFS_INO_INVALID_SIZE;
if (request_mask & STATX_NLINK)
do_update |= cache_validity & NFS_INO_INVALID_NLINK;
- if (request_mask & (STATX_UID | STATX_GID | STATX_MODE))
+ if (request_mask & STATX_MODE)
+ do_update |= cache_validity & NFS_INO_INVALID_MODE;
+ if (request_mask & (STATX_UID | STATX_GID))
do_update |= cache_validity & NFS_INO_INVALID_OTHER;
if (request_mask & STATX_BLOCKS)
do_update |= cache_validity & NFS_INO_INVALID_BLOCKS;
@@ -1510,7 +1515,7 @@ static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fat
if ((fattr->valid & NFS_ATTR_FATTR_MODE) && (inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO))
invalid |= NFS_INO_INVALID_ACCESS
| NFS_INO_INVALID_ACL
- | NFS_INO_INVALID_OTHER;
+ | NFS_INO_INVALID_MODE;
if ((fattr->valid & NFS_ATTR_FATTR_OWNER) && !uid_eq(inode->i_uid, fattr->uid))
invalid |= NFS_INO_INVALID_ACCESS
| NFS_INO_INVALID_ACL
@@ -1947,6 +1952,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
| NFS_INO_INVALID_SIZE
| NFS_INO_INVALID_BLOCKS
| NFS_INO_INVALID_NLINK
+ | NFS_INO_INVALID_MODE
| NFS_INO_INVALID_OTHER;
if (S_ISDIR(inode->i_mode))
nfs_force_lookup_revalidate(inode);
@@ -2037,7 +2043,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
}
} else if (server->caps & NFS_CAP_MODE) {
nfsi->cache_validity |= save_cache_validity &
- (NFS_INO_INVALID_OTHER
+ (NFS_INO_INVALID_MODE
| NFS_INO_REVAL_FORCED);
cache_revalidated = false;
}
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index a74c1c3c4192..bc90f2a12d5d 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -302,9 +302,10 @@ static void nfs4_bitmap_copy_adjust(__u32 *dst, const __u32 *src,
if (!(cache_validity & NFS_INO_INVALID_CHANGE))
dst[0] &= ~FATTR4_WORD0_CHANGE;
+ if (!(cache_validity & NFS_INO_INVALID_MODE))
+ dst[1] &= ~FATTR4_WORD1_MODE;
if (!(cache_validity & NFS_INO_INVALID_OTHER))
- dst[1] &= ~(FATTR4_WORD1_MODE | FATTR4_WORD1_OWNER |
- FATTR4_WORD1_OWNER_GROUP);
+ dst[1] &= ~(FATTR4_WORD1_OWNER | FATTR4_WORD1_OWNER_GROUP);
}
static void nfs4_setup_readdir(u64 cookie, __be32 *verifier, struct dentry *dentry,
@@ -3344,7 +3345,9 @@ static int nfs4_do_setattr(struct inode *inode, const struct cred *cred,
unsigned long adjust_flags = NFS_INO_INVALID_CHANGE;
int err;
- if (sattr->ia_valid & (ATTR_MODE|ATTR_UID|ATTR_GID))
+ if (sattr->ia_valid & (ATTR_MODE | ATTR_KILL_SUID | ATTR_KILL_SGID))
+ adjust_flags |= NFS_INO_INVALID_MODE;
+ if (sattr->ia_valid & (ATTR_UID | ATTR_GID))
adjust_flags |= NFS_INO_INVALID_OTHER;
do {
@@ -5431,9 +5434,10 @@ static void nfs4_bitmask_set(__u32 bitmask[NFS4_BITMASK_SZ], const __u32 *src,
bitmask[0] |= FATTR4_WORD0_CHANGE;
if (cache_validity & NFS_INO_INVALID_ATIME)
bitmask[1] |= FATTR4_WORD1_TIME_ACCESS;
+ if (cache_validity & NFS_INO_INVALID_MODE)
+ bitmask[1] |= FATTR4_WORD1_MODE;
if (cache_validity & NFS_INO_INVALID_OTHER)
- bitmask[1] |= FATTR4_WORD1_MODE | FATTR4_WORD1_OWNER |
- FATTR4_WORD1_OWNER_GROUP;
+ bitmask[1] |= FATTR4_WORD1_OWNER | FATTR4_WORD1_OWNER_GROUP;
if (cache_validity & NFS_INO_INVALID_NLINK)
bitmask[1] |= FATTR4_WORD1_NUMLINKS;
if (label && label->len && cache_validity & NFS_INO_INVALID_LABEL)
diff --git a/fs/nfs/nfstrace.h b/fs/nfs/nfstrace.h
index a0ebc53160dd..41a161cd31f6 100644
--- a/fs/nfs/nfstrace.h
+++ b/fs/nfs/nfstrace.h
@@ -49,6 +49,7 @@ TRACE_DEFINE_ENUM(NFS_INO_DATA_INVAL_DEFER);
TRACE_DEFINE_ENUM(NFS_INO_INVALID_BLOCKS);
TRACE_DEFINE_ENUM(NFS_INO_INVALID_XATTR);
TRACE_DEFINE_ENUM(NFS_INO_INVALID_NLINK);
+TRACE_DEFINE_ENUM(NFS_INO_INVALID_MODE);
#define nfs_show_cache_validity(v) \
__print_flags(v, "|", \
@@ -67,7 +68,8 @@ TRACE_DEFINE_ENUM(NFS_INO_INVALID_NLINK);
{ NFS_INO_DATA_INVAL_DEFER, "DATA_INVAL_DEFER" }, \
{ NFS_INO_INVALID_BLOCKS, "INVALID_BLOCKS" }, \
{ NFS_INO_INVALID_XATTR, "INVALID_XATTR" }, \
- { NFS_INO_INVALID_NLINK, "INVALID_NLINK" })
+ { NFS_INO_INVALID_NLINK, "INVALID_NLINK" }, \
+ { NFS_INO_INVALID_MODE, "INVALID_MODE" })
TRACE_DEFINE_ENUM(NFS_INO_ADVISE_RDPLUS);
TRACE_DEFINE_ENUM(NFS_INO_STALE);
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 7a39b3d424da..61d1174935b6 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -1604,7 +1604,7 @@ static int nfs_writeback_done(struct rpc_task *task,
/* Deal with the suid/sgid bit corner case */
if (nfs_should_remove_suid(inode)) {
spin_lock(&inode->i_lock);
- nfs_set_cache_invalid(inode, NFS_INO_INVALID_OTHER);
+ nfs_set_cache_invalid(inode, NFS_INO_INVALID_MODE);
spin_unlock(&inode->i_lock);
}
return 0;
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 41165b988dfb..ffba254d2098 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -247,12 +247,14 @@ struct nfs4_copy_state {
#define NFS_INO_INVALID_BLOCKS BIT(14) /* cached blocks are invalid */
#define NFS_INO_INVALID_XATTR BIT(15) /* xattrs are invalid */
#define NFS_INO_INVALID_NLINK BIT(16) /* cached nlinks is invalid */
+#define NFS_INO_INVALID_MODE BIT(17) /* cached mode is invalid */
#define NFS_INO_INVALID_ATTR (NFS_INO_INVALID_CHANGE \
| NFS_INO_INVALID_CTIME \
| NFS_INO_INVALID_MTIME \
| NFS_INO_INVALID_SIZE \
| NFS_INO_INVALID_NLINK \
+ | NFS_INO_INVALID_MODE \
| NFS_INO_INVALID_OTHER) /* inode metadata is invalid */
/*
--
2.30.2