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-rw-r--r--fs/afs/afs.h2
-rw-r--r--fs/afs/dir.c36
-rw-r--r--fs/afs/fsclient.c2
-rw-r--r--fs/afs/inode.c18
-rw-r--r--fs/afs/internal.h1
-rw-r--r--fs/afs/yfsclient.c2
6 files changed, 33 insertions, 28 deletions
diff --git a/fs/afs/afs.h b/fs/afs/afs.h
index 819678bd8bec..a7d3f902a91c 100644
--- a/fs/afs/afs.h
+++ b/fs/afs/afs.h
@@ -150,7 +150,9 @@ struct afs_file_status {
struct afs_status_cb {
struct afs_file_status status;
struct afs_callback callback;
+ bool have_status; /* True if status record was retrieved */
bool have_cb; /* True if cb record was retrieved */
+ bool have_error; /* True if status.abort_code indicates an error */
};
/*
diff --git a/fs/afs/dir.c b/fs/afs/dir.c
index 338c2260b0a0..d1b3736a3bbd 100644
--- a/fs/afs/dir.c
+++ b/fs/afs/dir.c
@@ -1299,32 +1299,27 @@ error:
* However, if we didn't have a callback promise outstanding, or it was
* outstanding on a different server, then it won't break it either...
*/
-int afs_dir_remove_link(struct dentry *dentry, struct key *key,
- unsigned long d_version_before,
- unsigned long d_version_after)
+static int afs_dir_remove_link(struct afs_vnode *dvnode, struct dentry *dentry,
+ struct key *key)
{
- bool dir_valid;
int ret = 0;
- /* There were no intervening changes on the server if the version
- * number we got back was incremented by exactly 1.
- */
- dir_valid = (d_version_after == d_version_before + 1);
-
if (d_really_is_positive(dentry)) {
struct afs_vnode *vnode = AFS_FS_I(d_inode(dentry));
if (test_bit(AFS_VNODE_DELETED, &vnode->flags)) {
/* Already done */
- } else if (dir_valid) {
+ } else if (test_bit(AFS_VNODE_DIR_VALID, &dvnode->flags)) {
+ write_seqlock(&vnode->cb_lock);
drop_nlink(&vnode->vfs_inode);
if (vnode->vfs_inode.i_nlink == 0) {
set_bit(AFS_VNODE_DELETED, &vnode->flags);
- clear_bit(AFS_VNODE_CB_PROMISED, &vnode->flags);
+ __afs_break_callback(vnode);
}
+ write_sequnlock(&vnode->cb_lock);
ret = 0;
} else {
- clear_bit(AFS_VNODE_CB_PROMISED, &vnode->flags);
+ afs_break_callback(vnode);
if (test_bit(AFS_VNODE_DELETED, &vnode->flags))
kdebug("AFS_VNODE_DELETED");
@@ -1348,7 +1343,6 @@ static int afs_unlink(struct inode *dir, struct dentry *dentry)
struct afs_status_cb *scb;
struct afs_vnode *dvnode = AFS_FS_I(dir), *vnode = NULL;
struct key *key;
- unsigned long d_version = (unsigned long)dentry->d_fsdata;
bool need_rehash = false;
int ret;
@@ -1395,20 +1389,16 @@ static int afs_unlink(struct inode *dir, struct dentry *dentry)
ret = -ERESTARTSYS;
if (afs_begin_vnode_operation(&fc, dvnode, key, true)) {
afs_dataversion_t data_version = dvnode->status.data_version + 1;
+ afs_dataversion_t data_version_2 = vnode->status.data_version;
while (afs_select_fileserver(&fc)) {
fc.cb_break = afs_calc_vnode_cb_break(dvnode);
+ fc.cb_break_2 = afs_calc_vnode_cb_break(vnode);
if (test_bit(AFS_SERVER_FL_IS_YFS, &fc.cbi->server->flags) &&
!test_bit(AFS_SERVER_FL_NO_RM2, &fc.cbi->server->flags)) {
yfs_fs_remove_file2(&fc, vnode, dentry->d_name.name,
&scb[0], &scb[1]);
- if (fc.ac.error == 0 &&
- scb[1].status.abort_code == VNOVNODE) {
- set_bit(AFS_VNODE_DELETED, &vnode->flags);
- afs_break_callback(vnode);
- }
-
if (fc.ac.error != -ECONNABORTED ||
fc.ac.abort_code != RXGEN_OPCODE)
continue;
@@ -1420,11 +1410,11 @@ static int afs_unlink(struct inode *dir, struct dentry *dentry)
afs_vnode_commit_status(&fc, dvnode, fc.cb_break,
&data_version, &scb[0]);
+ afs_vnode_commit_status(&fc, vnode, fc.cb_break_2,
+ &data_version_2, &scb[1]);
ret = afs_end_vnode_operation(&fc);
- if (ret == 0)
- ret = afs_dir_remove_link(
- dentry, key, d_version,
- (unsigned long)dvnode->status.data_version);
+ if (ret == 0 && !(scb[1].have_status || scb[1].have_error))
+ ret = afs_dir_remove_link(dvnode, dentry, key);
if (ret == 0 &&
test_bit(AFS_VNODE_DIR_VALID, &dvnode->flags))
afs_edit_dir_remove(dvnode, &dentry->d_name,
diff --git a/fs/afs/fsclient.c b/fs/afs/fsclient.c
index 89b684c957b9..48298408d6ac 100644
--- a/fs/afs/fsclient.c
+++ b/fs/afs/fsclient.c
@@ -83,6 +83,7 @@ static int xdr_decode_AFSFetchStatus(const __be32 **_bp,
* case.
*/
status->abort_code = abort_code;
+ scb->have_error = true;
return 0;
}
@@ -127,6 +128,7 @@ static int xdr_decode_AFSFetchStatus(const __be32 **_bp,
data_version = (u64)ntohl(xdr->data_version_lo);
data_version |= (u64)ntohl(xdr->data_version_hi) << 32;
status->data_version = data_version;
+ scb->have_status = true;
*_bp = (const void *)*_bp + sizeof(*xdr);
return 0;
diff --git a/fs/afs/inode.c b/fs/afs/inode.c
index 37c5de793353..e1a523d2e378 100644
--- a/fs/afs/inode.c
+++ b/fs/afs/inode.c
@@ -23,6 +23,7 @@
#include <linux/namei.h>
#include <linux/iversion.h>
#include "internal.h"
+#include "afs_fs.h"
static const struct inode_operations afs_symlink_inode_operations = {
.get_link = page_get_link,
@@ -271,13 +272,22 @@ void afs_vnode_commit_status(struct afs_fs_cursor *fc,
write_seqlock(&vnode->cb_lock);
- afs_apply_status(fc, vnode, scb, expected_version);
- if (scb->have_cb)
- afs_apply_callback(fc, vnode, scb, cb_break);
+ if (scb->have_error) {
+ if (scb->status.abort_code == VNOVNODE) {
+ set_bit(AFS_VNODE_DELETED, &vnode->flags);
+ clear_nlink(&vnode->vfs_inode);
+ __afs_break_callback(vnode);
+ }
+ } else {
+ if (scb->have_status)
+ afs_apply_status(fc, vnode, scb, expected_version);
+ if (scb->have_cb)
+ afs_apply_callback(fc, vnode, scb, cb_break);
+ }
write_sequnlock(&vnode->cb_lock);
- if (fc->ac.error == 0)
+ if (fc->ac.error == 0 && scb->have_status)
afs_cache_permit(vnode, fc->key, cb_break, scb);
}
diff --git a/fs/afs/internal.h b/fs/afs/internal.h
index 3dbb1e840dfd..f80ca638e70f 100644
--- a/fs/afs/internal.h
+++ b/fs/afs/internal.h
@@ -904,7 +904,6 @@ extern const struct address_space_operations afs_dir_aops;
extern const struct dentry_operations afs_fs_dentry_operations;
extern void afs_d_release(struct dentry *);
-extern int afs_dir_remove_link(struct dentry *, struct key *, unsigned long, unsigned long);
/*
* dir_edit.c
diff --git a/fs/afs/yfsclient.c b/fs/afs/yfsclient.c
index c8f71fc9920b..10de675dc6fc 100644
--- a/fs/afs/yfsclient.c
+++ b/fs/afs/yfsclient.c
@@ -195,6 +195,7 @@ static int xdr_decode_YFSFetchStatus(const __be32 **_bp,
if (status->abort_code != 0) {
if (status->abort_code == VNOVNODE)
status->nlink = 0;
+ scb->have_error = true;
return 0;
}
@@ -222,6 +223,7 @@ static int xdr_decode_YFSFetchStatus(const __be32 **_bp,
status->mtime_server = xdr_to_time(xdr->mtime_server);
status->size = xdr_to_u64(xdr->size);
status->data_version = xdr_to_u64(xdr->data_version);
+ scb->have_status = true;
*_bp += xdr_size(xdr);
return 0;
generated by cgit (git 2.34.1) at 2024-05-17 10:14:20 +0000