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Diffstat (limited to 'fs/afs/dir.c')
-rw-r--r--fs/afs/dir.c75
1 files changed, 51 insertions, 24 deletions
diff --git a/fs/afs/dir.c b/fs/afs/dir.c
index 855bf2b79fed..43dea3b00c29 100644
--- a/fs/afs/dir.c
+++ b/fs/afs/dir.c
@@ -138,6 +138,7 @@ static bool afs_dir_check_page(struct afs_vnode *dvnode, struct page *page,
ntohs(dbuf->blocks[tmp].hdr.magic));
trace_afs_dir_check_failed(dvnode, off, i_size);
kunmap(page);
+ trace_afs_file_error(dvnode, -EIO, afs_file_error_dir_bad_magic);
goto error;
}
@@ -190,9 +191,11 @@ static struct afs_read *afs_read_dir(struct afs_vnode *dvnode, struct key *key)
retry:
i_size = i_size_read(&dvnode->vfs_inode);
if (i_size < 2048)
- return ERR_PTR(-EIO);
- if (i_size > 2048 * 1024)
+ return ERR_PTR(afs_bad(dvnode, afs_file_error_dir_small));
+ if (i_size > 2048 * 1024) {
+ trace_afs_file_error(dvnode, -EFBIG, afs_file_error_dir_big);
return ERR_PTR(-EFBIG);
+ }
_enter("%llu", i_size);
@@ -315,7 +318,8 @@ content_has_grown:
/*
* deal with one block in an AFS directory
*/
-static int afs_dir_iterate_block(struct dir_context *ctx,
+static int afs_dir_iterate_block(struct afs_vnode *dvnode,
+ struct dir_context *ctx,
union afs_xdr_dir_block *block,
unsigned blkoff)
{
@@ -365,7 +369,7 @@ static int afs_dir_iterate_block(struct dir_context *ctx,
" (len %u/%zu)",
blkoff / sizeof(union afs_xdr_dir_block),
offset, next, tmp, nlen);
- return -EIO;
+ return afs_bad(dvnode, afs_file_error_dir_over_end);
}
if (!(block->hdr.bitmap[next / 8] &
(1 << (next % 8)))) {
@@ -373,7 +377,7 @@ static int afs_dir_iterate_block(struct dir_context *ctx,
" %u unmarked extension (len %u/%zu)",
blkoff / sizeof(union afs_xdr_dir_block),
offset, next, tmp, nlen);
- return -EIO;
+ return afs_bad(dvnode, afs_file_error_dir_unmarked_ext);
}
_debug("ENT[%zu.%u]: ext %u/%zu",
@@ -442,7 +446,7 @@ static int afs_dir_iterate(struct inode *dir, struct dir_context *ctx,
*/
page = req->pages[blkoff / PAGE_SIZE];
if (!page) {
- ret = -EIO;
+ ret = afs_bad(dvnode, afs_file_error_dir_missing_page);
break;
}
mark_page_accessed(page);
@@ -455,7 +459,7 @@ static int afs_dir_iterate(struct inode *dir, struct dir_context *ctx,
do {
dblock = &dbuf->blocks[(blkoff % PAGE_SIZE) /
sizeof(union afs_xdr_dir_block)];
- ret = afs_dir_iterate_block(ctx, dblock, blkoff);
+ ret = afs_dir_iterate_block(dvnode, ctx, dblock, blkoff);
if (ret != 1) {
kunmap(page);
goto out;
@@ -548,7 +552,7 @@ static int afs_do_lookup_one(struct inode *dir, struct dentry *dentry,
}
*fid = cookie.fid;
- _leave(" = 0 { vn=%u u=%u }", fid->vnode, fid->unique);
+ _leave(" = 0 { vn=%llu u=%u }", fid->vnode, fid->unique);
return 0;
}
@@ -826,7 +830,7 @@ static struct dentry *afs_lookup(struct inode *dir, struct dentry *dentry,
struct key *key;
int ret;
- _enter("{%x:%u},%p{%pd},",
+ _enter("{%llx:%llu},%p{%pd},",
dvnode->fid.vid, dvnode->fid.vnode, dentry, dentry);
ASSERTCMP(d_inode(dentry), ==, NULL);
@@ -896,7 +900,7 @@ static int afs_d_revalidate(struct dentry *dentry, unsigned int flags)
if (d_really_is_positive(dentry)) {
vnode = AFS_FS_I(d_inode(dentry));
- _enter("{v={%x:%u} n=%pd fl=%lx},",
+ _enter("{v={%llx:%llu} n=%pd fl=%lx},",
vnode->fid.vid, vnode->fid.vnode, dentry,
vnode->flags);
} else {
@@ -965,7 +969,7 @@ static int afs_d_revalidate(struct dentry *dentry, unsigned int flags)
/* if the vnode ID has changed, then the dirent points to a
* different file */
if (fid.vnode != vnode->fid.vnode) {
- _debug("%pd: dirent changed [%u != %u]",
+ _debug("%pd: dirent changed [%llu != %llu]",
dentry, fid.vnode,
vnode->fid.vnode);
goto not_found;
@@ -1085,6 +1089,7 @@ static void afs_vnode_new_inode(struct afs_fs_cursor *fc,
vnode = AFS_FS_I(inode);
set_bit(AFS_VNODE_NEW_CONTENT, &vnode->flags);
+ afs_vnode_commit_status(fc, vnode, 0);
d_add(new_dentry, inode);
}
@@ -1104,7 +1109,7 @@ static int afs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
mode |= S_IFDIR;
- _enter("{%x:%u},{%pd},%ho",
+ _enter("{%llx:%llu},{%pd},%ho",
dvnode->fid.vid, dvnode->fid.vnode, dentry, mode);
key = afs_request_key(dvnode->volume->cell);
@@ -1169,12 +1174,12 @@ static void afs_dir_remove_subdir(struct dentry *dentry)
static int afs_rmdir(struct inode *dir, struct dentry *dentry)
{
struct afs_fs_cursor fc;
- struct afs_vnode *dvnode = AFS_FS_I(dir);
+ struct afs_vnode *dvnode = AFS_FS_I(dir), *vnode = NULL;
struct key *key;
u64 data_version = dvnode->status.data_version;
int ret;
- _enter("{%x:%u},{%pd}",
+ _enter("{%llx:%llu},{%pd}",
dvnode->fid.vid, dvnode->fid.vnode, dentry);
key = afs_request_key(dvnode->volume->cell);
@@ -1183,11 +1188,19 @@ static int afs_rmdir(struct inode *dir, struct dentry *dentry)
goto error;
}
+ /* Try to make sure we have a callback promise on the victim. */
+ if (d_really_is_positive(dentry)) {
+ vnode = AFS_FS_I(d_inode(dentry));
+ ret = afs_validate(vnode, key);
+ if (ret < 0)
+ goto error_key;
+ }
+
ret = -ERESTARTSYS;
if (afs_begin_vnode_operation(&fc, dvnode, key)) {
while (afs_select_fileserver(&fc)) {
fc.cb_break = afs_calc_vnode_cb_break(dvnode);
- afs_fs_remove(&fc, dentry->d_name.name, true,
+ afs_fs_remove(&fc, vnode, dentry->d_name.name, true,
data_version);
}
@@ -1201,6 +1214,7 @@ static int afs_rmdir(struct inode *dir, struct dentry *dentry)
}
}
+error_key:
key_put(key);
error:
return ret;
@@ -1231,7 +1245,9 @@ static int afs_dir_remove_link(struct dentry *dentry, struct key *key,
if (d_really_is_positive(dentry)) {
struct afs_vnode *vnode = AFS_FS_I(d_inode(dentry));
- if (dir_valid) {
+ if (test_bit(AFS_VNODE_DELETED, &vnode->flags)) {
+ /* Already done */
+ } else if (dir_valid) {
drop_nlink(&vnode->vfs_inode);
if (vnode->vfs_inode.i_nlink == 0) {
set_bit(AFS_VNODE_DELETED, &vnode->flags);
@@ -1260,13 +1276,13 @@ static int afs_dir_remove_link(struct dentry *dentry, struct key *key,
static int afs_unlink(struct inode *dir, struct dentry *dentry)
{
struct afs_fs_cursor fc;
- struct afs_vnode *dvnode = AFS_FS_I(dir), *vnode;
+ struct afs_vnode *dvnode = AFS_FS_I(dir), *vnode = NULL;
struct key *key;
unsigned long d_version = (unsigned long)dentry->d_fsdata;
u64 data_version = dvnode->status.data_version;
int ret;
- _enter("{%x:%u},{%pd}",
+ _enter("{%llx:%llu},{%pd}",
dvnode->fid.vid, dvnode->fid.vnode, dentry);
if (dentry->d_name.len >= AFSNAMEMAX)
@@ -1290,7 +1306,18 @@ static int afs_unlink(struct inode *dir, struct dentry *dentry)
if (afs_begin_vnode_operation(&fc, dvnode, key)) {
while (afs_select_fileserver(&fc)) {
fc.cb_break = afs_calc_vnode_cb_break(dvnode);
- afs_fs_remove(&fc, dentry->d_name.name, false,
+
+ 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,
+ data_version);
+ if (fc.ac.error != -ECONNABORTED ||
+ fc.ac.abort_code != RXGEN_OPCODE)
+ continue;
+ set_bit(AFS_SERVER_FL_NO_RM2, &fc.cbi->server->flags);
+ }
+
+ afs_fs_remove(&fc, vnode, dentry->d_name.name, false,
data_version);
}
@@ -1330,7 +1357,7 @@ static int afs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
mode |= S_IFREG;
- _enter("{%x:%u},{%pd},%ho,",
+ _enter("{%llx:%llu},{%pd},%ho,",
dvnode->fid.vid, dvnode->fid.vnode, dentry, mode);
ret = -ENAMETOOLONG;
@@ -1393,7 +1420,7 @@ static int afs_link(struct dentry *from, struct inode *dir,
dvnode = AFS_FS_I(dir);
data_version = dvnode->status.data_version;
- _enter("{%x:%u},{%x:%u},{%pd}",
+ _enter("{%llx:%llu},{%llx:%llu},{%pd}",
vnode->fid.vid, vnode->fid.vnode,
dvnode->fid.vid, dvnode->fid.vnode,
dentry);
@@ -1464,7 +1491,7 @@ static int afs_symlink(struct inode *dir, struct dentry *dentry,
u64 data_version = dvnode->status.data_version;
int ret;
- _enter("{%x:%u},{%pd},%s",
+ _enter("{%llx:%llu},{%pd},%s",
dvnode->fid.vid, dvnode->fid.vnode, dentry,
content);
@@ -1540,7 +1567,7 @@ static int afs_rename(struct inode *old_dir, struct dentry *old_dentry,
orig_data_version = orig_dvnode->status.data_version;
new_data_version = new_dvnode->status.data_version;
- _enter("{%x:%u},{%x:%u},{%x:%u},{%pd}",
+ _enter("{%llx:%llu},{%llx:%llu},{%llx:%llu},{%pd}",
orig_dvnode->fid.vid, orig_dvnode->fid.vnode,
vnode->fid.vid, vnode->fid.vnode,
new_dvnode->fid.vid, new_dvnode->fid.vnode,
@@ -1607,7 +1634,7 @@ static int afs_dir_releasepage(struct page *page, gfp_t gfp_flags)
{
struct afs_vnode *dvnode = AFS_FS_I(page->mapping->host);
- _enter("{{%x:%u}[%lu]}", dvnode->fid.vid, dvnode->fid.vnode, page->index);
+ _enter("{{%llx:%llu}[%lu]}", dvnode->fid.vid, dvnode->fid.vnode, page->index);
set_page_private(page, 0);
ClearPagePrivate(page);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.