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Diffstat (limited to 'fs/cachefiles')
-rw-r--r--fs/cachefiles/error_inject.c2
-rw-r--r--fs/cachefiles/internal.h1
-rw-r--r--fs/cachefiles/io.c22
-rw-r--r--fs/cachefiles/key.c3
-rw-r--r--fs/cachefiles/namei.c27
-rw-r--r--fs/cachefiles/ondemand.c11
-rw-r--r--fs/cachefiles/xattr.c9
7 files changed, 41 insertions, 34 deletions
diff --git a/fs/cachefiles/error_inject.c b/fs/cachefiles/error_inject.c
index 1715d5ca2b2d..e341ade47dd8 100644
--- a/fs/cachefiles/error_inject.c
+++ b/fs/cachefiles/error_inject.c
@@ -11,7 +11,7 @@
unsigned int cachefiles_error_injection_state;
static struct ctl_table_header *cachefiles_sysctl;
-static struct ctl_table cachefiles_sysctls[] = {
+static const struct ctl_table cachefiles_sysctls[] = {
{
.procname = "error_injection",
.data = &cachefiles_error_injection_state,
diff --git a/fs/cachefiles/internal.h b/fs/cachefiles/internal.h
index 38c236e38cef..b62cd3e9a18e 100644
--- a/fs/cachefiles/internal.h
+++ b/fs/cachefiles/internal.h
@@ -71,7 +71,6 @@ struct cachefiles_object {
int debug_id;
spinlock_t lock;
refcount_t ref;
- u8 d_name_len; /* Length of filename */
enum cachefiles_content content_info:8; /* Info about content presence */
unsigned long flags;
#define CACHEFILES_OBJECT_USING_TMPFILE 0 /* Have an unlinked tmpfile */
diff --git a/fs/cachefiles/io.c b/fs/cachefiles/io.c
index 6a821a959b59..3e0576d9db1d 100644
--- a/fs/cachefiles/io.c
+++ b/fs/cachefiles/io.c
@@ -13,6 +13,7 @@
#include <linux/falloc.h>
#include <linux/sched/mm.h>
#include <trace/events/fscache.h>
+#include <trace/events/netfs.h>
#include "internal.h"
struct cachefiles_kiocb {
@@ -62,7 +63,7 @@ static void cachefiles_read_complete(struct kiocb *iocb, long ret)
ret = -ESTALE;
}
- ki->term_func(ki->term_func_priv, ret, ki->was_async);
+ ki->term_func(ki->term_func_priv, ret);
}
cachefiles_put_kiocb(ki);
@@ -187,7 +188,7 @@ in_progress:
presubmission_error:
if (term_func)
- term_func(term_func_priv, ret < 0 ? ret : skipped, false);
+ term_func(term_func_priv, ret < 0 ? ret : skipped);
return ret;
}
@@ -270,7 +271,7 @@ static void cachefiles_write_complete(struct kiocb *iocb, long ret)
atomic_long_sub(ki->b_writing, &object->volume->cache->b_writing);
set_bit(FSCACHE_COOKIE_HAVE_DATA, &object->cookie->flags);
if (ki->term_func)
- ki->term_func(ki->term_func_priv, ret, ki->was_async);
+ ki->term_func(ki->term_func_priv, ret);
cachefiles_put_kiocb(ki);
}
@@ -300,7 +301,7 @@ int __cachefiles_write(struct cachefiles_object *object,
ki = kzalloc(sizeof(struct cachefiles_kiocb), GFP_KERNEL);
if (!ki) {
if (term_func)
- term_func(term_func_priv, -ENOMEM, false);
+ term_func(term_func_priv, -ENOMEM);
return -ENOMEM;
}
@@ -346,8 +347,6 @@ int __cachefiles_write(struct cachefiles_object *object,
default:
ki->was_async = false;
cachefiles_write_complete(&ki->iocb, ret);
- if (ret > 0)
- ret = 0;
break;
}
@@ -365,7 +364,8 @@ static int cachefiles_write(struct netfs_cache_resources *cres,
{
if (!fscache_wait_for_operation(cres, FSCACHE_WANT_WRITE)) {
if (term_func)
- term_func(term_func_priv, -ENOBUFS, false);
+ term_func(term_func_priv, -ENOBUFS);
+ trace_netfs_sreq(term_func_priv, netfs_sreq_trace_cache_nowrite);
return -ENOBUFS;
}
@@ -663,7 +663,7 @@ static void cachefiles_issue_write(struct netfs_io_subrequest *subreq)
pre = CACHEFILES_DIO_BLOCK_SIZE - off;
if (pre >= len) {
fscache_count_dio_misfit();
- netfs_write_subrequest_terminated(subreq, len, false);
+ netfs_write_subrequest_terminated(subreq, len);
return;
}
subreq->transferred += pre;
@@ -689,21 +689,23 @@ static void cachefiles_issue_write(struct netfs_io_subrequest *subreq)
len -= post;
if (len == 0) {
fscache_count_dio_misfit();
- netfs_write_subrequest_terminated(subreq, post, false);
+ netfs_write_subrequest_terminated(subreq, post);
return;
}
iov_iter_truncate(&subreq->io_iter, len);
}
+ trace_netfs_sreq(subreq, netfs_sreq_trace_cache_prepare);
cachefiles_begin_secure(cache, &saved_cred);
ret = __cachefiles_prepare_write(object, cachefiles_cres_file(cres),
&start, &len, len, true);
cachefiles_end_secure(cache, saved_cred);
if (ret < 0) {
- netfs_write_subrequest_terminated(subreq, ret, false);
+ netfs_write_subrequest_terminated(subreq, ret);
return;
}
+ trace_netfs_sreq(subreq, netfs_sreq_trace_cache_write);
cachefiles_write(&subreq->rreq->cache_resources,
subreq->start, &subreq->io_iter,
netfs_write_subrequest_terminated, subreq);
diff --git a/fs/cachefiles/key.c b/fs/cachefiles/key.c
index bf935e25bdbe..aae86af48ed5 100644
--- a/fs/cachefiles/key.c
+++ b/fs/cachefiles/key.c
@@ -8,7 +8,7 @@
#include <linux/slab.h>
#include "internal.h"
-static const char cachefiles_charmap[64] =
+static const char cachefiles_charmap[64] __nonstring =
"0123456789" /* 0 - 9 */
"abcdefghijklmnopqrstuvwxyz" /* 10 - 35 */
"ABCDEFGHIJKLMNOPQRSTUVWXYZ" /* 36 - 61 */
@@ -132,7 +132,6 @@ bool cachefiles_cook_key(struct cachefiles_object *object)
success:
name[len] = 0;
object->d_name = name;
- object->d_name_len = len;
_leave(" = %s", object->d_name);
return true;
}
diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c
index 7cf59713f0f7..aecfc5c37b49 100644
--- a/fs/cachefiles/namei.c
+++ b/fs/cachefiles/namei.c
@@ -98,7 +98,7 @@ struct dentry *cachefiles_get_directory(struct cachefiles_cache *cache,
retry:
ret = cachefiles_inject_read_error();
if (ret == 0)
- subdir = lookup_one_len(dirname, dir, strlen(dirname));
+ subdir = lookup_one(&nop_mnt_idmap, &QSTR(dirname), dir);
else
subdir = ERR_PTR(ret);
trace_cachefiles_lookup(NULL, dir, subdir);
@@ -130,16 +130,18 @@ retry:
goto mkdir_error;
ret = cachefiles_inject_write_error();
if (ret == 0)
- ret = vfs_mkdir(&nop_mnt_idmap, d_inode(dir), subdir, 0700);
- if (ret < 0) {
+ subdir = vfs_mkdir(&nop_mnt_idmap, d_inode(dir), subdir, 0700);
+ else
+ subdir = ERR_PTR(ret);
+ if (IS_ERR(subdir)) {
trace_cachefiles_vfs_error(NULL, d_inode(dir), ret,
cachefiles_trace_mkdir_error);
goto mkdir_error;
}
trace_cachefiles_mkdir(dir, subdir);
- if (unlikely(d_unhashed(subdir))) {
- cachefiles_put_directory(subdir);
+ if (unlikely(d_unhashed(subdir) || d_is_negative(subdir))) {
+ dput(subdir);
goto retry;
}
ASSERT(d_backing_inode(subdir));
@@ -195,7 +197,8 @@ mark_error:
mkdir_error:
inode_unlock(d_inode(dir));
- dput(subdir);
+ if (!IS_ERR(subdir))
+ dput(subdir);
pr_err("mkdir %s failed with error %d\n", dirname, ret);
return ERR_PTR(ret);
@@ -335,7 +338,7 @@ try_again:
return -EIO;
}
- grave = lookup_one_len(nbuffer, cache->graveyard, strlen(nbuffer));
+ grave = lookup_one(&nop_mnt_idmap, &QSTR(nbuffer), cache->graveyard);
if (IS_ERR(grave)) {
unlock_rename(cache->graveyard, dir);
trace_cachefiles_vfs_error(object, d_inode(cache->graveyard),
@@ -627,8 +630,8 @@ bool cachefiles_look_up_object(struct cachefiles_object *object)
/* Look up path "cache/vol/fanout/file". */
ret = cachefiles_inject_read_error();
if (ret == 0)
- dentry = lookup_positive_unlocked(object->d_name, fan,
- object->d_name_len);
+ dentry = lookup_one_positive_unlocked(&nop_mnt_idmap,
+ &QSTR(object->d_name), fan);
else
dentry = ERR_PTR(ret);
trace_cachefiles_lookup(object, fan, dentry);
@@ -680,7 +683,7 @@ bool cachefiles_commit_tmpfile(struct cachefiles_cache *cache,
inode_lock_nested(d_inode(fan), I_MUTEX_PARENT);
ret = cachefiles_inject_read_error();
if (ret == 0)
- dentry = lookup_one_len(object->d_name, fan, object->d_name_len);
+ dentry = lookup_one(&nop_mnt_idmap, &QSTR(object->d_name), fan);
else
dentry = ERR_PTR(ret);
if (IS_ERR(dentry)) {
@@ -699,7 +702,7 @@ bool cachefiles_commit_tmpfile(struct cachefiles_cache *cache,
dput(dentry);
ret = cachefiles_inject_read_error();
if (ret == 0)
- dentry = lookup_one_len(object->d_name, fan, object->d_name_len);
+ dentry = lookup_one(&nop_mnt_idmap, &QSTR(object->d_name), fan);
else
dentry = ERR_PTR(ret);
if (IS_ERR(dentry)) {
@@ -748,7 +751,7 @@ static struct dentry *cachefiles_lookup_for_cull(struct cachefiles_cache *cache,
inode_lock_nested(d_inode(dir), I_MUTEX_PARENT);
- victim = lookup_one_len(filename, dir, strlen(filename));
+ victim = lookup_one(&nop_mnt_idmap, &QSTR(filename), dir);
if (IS_ERR(victim))
goto lookup_error;
if (d_is_negative(victim))
diff --git a/fs/cachefiles/ondemand.c b/fs/cachefiles/ondemand.c
index fe3de9ad57bf..a7ed86fa98bb 100644
--- a/fs/cachefiles/ondemand.c
+++ b/fs/cachefiles/ondemand.c
@@ -83,10 +83,8 @@ static ssize_t cachefiles_ondemand_fd_write_iter(struct kiocb *kiocb,
trace_cachefiles_ondemand_fd_write(object, file_inode(file), pos, len);
ret = __cachefiles_write(object, file, pos, iter, NULL, NULL);
- if (!ret) {
- ret = len;
+ if (ret > 0)
kiocb->ki_pos += ret;
- }
out:
fput(file);
@@ -317,8 +315,9 @@ static int cachefiles_ondemand_get_fd(struct cachefiles_req *req,
goto err_free_id;
}
- anon_file->file = anon_inode_getfile("[cachefiles]",
- &cachefiles_ondemand_fd_fops, object, O_WRONLY);
+ anon_file->file = anon_inode_getfile_fmode("[cachefiles]",
+ &cachefiles_ondemand_fd_fops, object,
+ O_WRONLY, FMODE_PWRITE | FMODE_LSEEK);
if (IS_ERR(anon_file->file)) {
ret = PTR_ERR(anon_file->file);
goto err_put_fd;
@@ -333,8 +332,6 @@ static int cachefiles_ondemand_get_fd(struct cachefiles_req *req,
goto err_put_file;
}
- anon_file->file->f_mode |= FMODE_PWRITE | FMODE_LSEEK;
-
load = (void *)req->msg.data;
load->fd = anon_file->fd;
object->ondemand->ondemand_id = object_id;
diff --git a/fs/cachefiles/xattr.c b/fs/cachefiles/xattr.c
index 7c6f260a3be5..52383b1d0ba6 100644
--- a/fs/cachefiles/xattr.c
+++ b/fs/cachefiles/xattr.c
@@ -77,6 +77,7 @@ int cachefiles_set_object_xattr(struct cachefiles_object *object)
trace_cachefiles_vfs_error(object, file_inode(file), ret,
cachefiles_trace_setxattr_error);
trace_cachefiles_coherency(object, file_inode(file)->i_ino,
+ be64_to_cpup((__be64 *)buf->data),
buf->content,
cachefiles_coherency_set_fail);
if (ret != -ENOMEM)
@@ -85,6 +86,7 @@ int cachefiles_set_object_xattr(struct cachefiles_object *object)
"Failed to set xattr with error %d", ret);
} else {
trace_cachefiles_coherency(object, file_inode(file)->i_ino,
+ be64_to_cpup((__be64 *)buf->data),
buf->content,
cachefiles_coherency_set_ok);
}
@@ -126,7 +128,10 @@ int cachefiles_check_auxdata(struct cachefiles_object *object, struct file *file
object,
"Failed to read aux with error %zd", xlen);
why = cachefiles_coherency_check_xattr;
- } else if (buf->type != CACHEFILES_COOKIE_TYPE_DATA) {
+ goto out;
+ }
+
+ if (buf->type != CACHEFILES_COOKIE_TYPE_DATA) {
why = cachefiles_coherency_check_type;
} else if (memcmp(buf->data, p, len) != 0) {
why = cachefiles_coherency_check_aux;
@@ -141,7 +146,9 @@ int cachefiles_check_auxdata(struct cachefiles_object *object, struct file *file
ret = 0;
}
+out:
trace_cachefiles_coherency(object, file_inode(file)->i_ino,
+ be64_to_cpup((__be64 *)buf->data),
buf->content, why);
kfree(buf);
return ret;
generated by cgit v1.2.3 (git 2.39.0) at 2025-08-21 05:56:13 +0300