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Diffstat (limited to 'fs/f2fs/namei.c')
-rw-r--r--fs/f2fs/namei.c80
1 files changed, 55 insertions, 25 deletions
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index 1a49b881bac0..47abc9722b17 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -15,8 +15,10 @@
#include <linux/ctype.h>
#include "f2fs.h"
+#include "node.h"
#include "xattr.h"
#include "acl.h"
+#include <trace/events/f2fs.h>
static struct inode *f2fs_new_inode(struct inode *dir, umode_t mode)
{
@@ -25,19 +27,19 @@ static struct inode *f2fs_new_inode(struct inode *dir, umode_t mode)
nid_t ino;
struct inode *inode;
bool nid_free = false;
- int err;
+ int err, ilock;
inode = new_inode(sb);
if (!inode)
return ERR_PTR(-ENOMEM);
- mutex_lock_op(sbi, NODE_NEW);
+ ilock = mutex_lock_op(sbi);
if (!alloc_nid(sbi, &ino)) {
- mutex_unlock_op(sbi, NODE_NEW);
+ mutex_unlock_op(sbi, ilock);
err = -ENOSPC;
goto fail;
}
- mutex_unlock_op(sbi, NODE_NEW);
+ mutex_unlock_op(sbi, ilock);
inode->i_uid = current_fsuid();
@@ -61,7 +63,7 @@ static struct inode *f2fs_new_inode(struct inode *dir, umode_t mode)
nid_free = true;
goto out;
}
-
+ trace_f2fs_new_inode(inode, 0);
mark_inode_dirty(inode);
return inode;
@@ -69,6 +71,8 @@ out:
clear_nlink(inode);
unlock_new_inode(inode);
fail:
+ trace_f2fs_new_inode(inode, err);
+ make_bad_inode(inode);
iput(inode);
if (nid_free)
alloc_nid_failed(sbi, ino);
@@ -82,7 +86,7 @@ static int is_multimedia_file(const unsigned char *s, const char *sub)
int ret;
if (sublen > slen)
- return 1;
+ return 0;
ret = memcmp(s + slen - sublen, sub, sublen);
if (ret) { /* compare upper case */
@@ -90,16 +94,16 @@ static int is_multimedia_file(const unsigned char *s, const char *sub)
char upper_sub[8];
for (i = 0; i < sublen && i < sizeof(upper_sub); i++)
upper_sub[i] = toupper(sub[i]);
- return memcmp(s + slen - sublen, upper_sub, sublen);
+ return !memcmp(s + slen - sublen, upper_sub, sublen);
}
- return ret;
+ return !ret;
}
/*
* Set multimedia files as cold files for hot/cold data separation
*/
-static inline void set_cold_file(struct f2fs_sb_info *sbi, struct inode *inode,
+static inline void set_cold_files(struct f2fs_sb_info *sbi, struct inode *inode,
const unsigned char *name)
{
int i;
@@ -107,8 +111,8 @@ static inline void set_cold_file(struct f2fs_sb_info *sbi, struct inode *inode,
int count = le32_to_cpu(sbi->raw_super->extension_count);
for (i = 0; i < count; i++) {
- if (!is_multimedia_file(name, extlist[i])) {
- F2FS_I(inode)->i_advise |= FADVISE_COLD_BIT;
+ if (is_multimedia_file(name, extlist[i])) {
+ set_cold_file(inode);
break;
}
}
@@ -121,7 +125,7 @@ static int f2fs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
struct f2fs_sb_info *sbi = F2FS_SB(sb);
struct inode *inode;
nid_t ino = 0;
- int err;
+ int err, ilock;
f2fs_balance_fs(sbi);
@@ -130,14 +134,16 @@ static int f2fs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
return PTR_ERR(inode);
if (!test_opt(sbi, DISABLE_EXT_IDENTIFY))
- set_cold_file(sbi, inode, dentry->d_name.name);
+ set_cold_files(sbi, inode, dentry->d_name.name);
inode->i_op = &f2fs_file_inode_operations;
inode->i_fop = &f2fs_file_operations;
inode->i_mapping->a_ops = &f2fs_dblock_aops;
ino = inode->i_ino;
+ ilock = mutex_lock_op(sbi);
err = f2fs_add_link(dentry, inode);
+ mutex_unlock_op(sbi, ilock);
if (err)
goto out;
@@ -150,6 +156,7 @@ static int f2fs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
out:
clear_nlink(inode);
unlock_new_inode(inode);
+ make_bad_inode(inode);
iput(inode);
alloc_nid_failed(sbi, ino);
return err;
@@ -161,7 +168,7 @@ static int f2fs_link(struct dentry *old_dentry, struct inode *dir,
struct inode *inode = old_dentry->d_inode;
struct super_block *sb = dir->i_sb;
struct f2fs_sb_info *sbi = F2FS_SB(sb);
- int err;
+ int err, ilock;
f2fs_balance_fs(sbi);
@@ -169,14 +176,23 @@ static int f2fs_link(struct dentry *old_dentry, struct inode *dir,
atomic_inc(&inode->i_count);
set_inode_flag(F2FS_I(inode), FI_INC_LINK);
+ ilock = mutex_lock_op(sbi);
err = f2fs_add_link(dentry, inode);
+ mutex_unlock_op(sbi, ilock);
if (err)
goto out;
+ /*
+ * This file should be checkpointed during fsync.
+ * We lost i_pino from now on.
+ */
+ set_cp_file(inode);
+
d_instantiate(dentry, inode);
return 0;
out:
clear_inode_flag(F2FS_I(inode), FI_INC_LINK);
+ make_bad_inode(inode);
iput(inode);
return err;
}
@@ -197,7 +213,7 @@ static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry,
struct f2fs_dir_entry *de;
struct page *page;
- if (dentry->d_name.len > F2FS_MAX_NAME_LEN)
+ if (dentry->d_name.len > F2FS_NAME_LEN)
return ERR_PTR(-ENAMETOOLONG);
de = f2fs_find_entry(dir, &dentry->d_name, &page);
@@ -222,7 +238,9 @@ static int f2fs_unlink(struct inode *dir, struct dentry *dentry)
struct f2fs_dir_entry *de;
struct page *page;
int err = -ENOENT;
+ int ilock;
+ trace_f2fs_unlink_enter(dir, dentry);
f2fs_balance_fs(sbi);
de = f2fs_find_entry(dir, &dentry->d_name, &page);
@@ -236,11 +254,14 @@ static int f2fs_unlink(struct inode *dir, struct dentry *dentry)
goto fail;
}
+ ilock = mutex_lock_op(sbi);
f2fs_delete_entry(de, page, inode);
+ mutex_unlock_op(sbi, ilock);
/* In order to evict this inode, we set it dirty */
mark_inode_dirty(inode);
fail:
+ trace_f2fs_unlink_exit(inode, err);
return err;
}
@@ -251,7 +272,7 @@ static int f2fs_symlink(struct inode *dir, struct dentry *dentry,
struct f2fs_sb_info *sbi = F2FS_SB(sb);
struct inode *inode;
size_t symlen = strlen(symname) + 1;
- int err;
+ int err, ilock;
f2fs_balance_fs(sbi);
@@ -262,7 +283,9 @@ static int f2fs_symlink(struct inode *dir, struct dentry *dentry,
inode->i_op = &f2fs_symlink_inode_operations;
inode->i_mapping->a_ops = &f2fs_dblock_aops;
+ ilock = mutex_lock_op(sbi);
err = f2fs_add_link(dentry, inode);
+ mutex_unlock_op(sbi, ilock);
if (err)
goto out;
@@ -275,6 +298,7 @@ static int f2fs_symlink(struct inode *dir, struct dentry *dentry,
out:
clear_nlink(inode);
unlock_new_inode(inode);
+ make_bad_inode(inode);
iput(inode);
alloc_nid_failed(sbi, inode->i_ino);
return err;
@@ -284,7 +308,7 @@ static int f2fs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
{
struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
struct inode *inode;
- int err;
+ int err, ilock;
f2fs_balance_fs(sbi);
@@ -298,7 +322,9 @@ static int f2fs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_ZERO);
set_inode_flag(F2FS_I(inode), FI_INC_LINK);
+ ilock = mutex_lock_op(sbi);
err = f2fs_add_link(dentry, inode);
+ mutex_unlock_op(sbi, ilock);
if (err)
goto out_fail;
@@ -313,6 +339,7 @@ out_fail:
clear_inode_flag(F2FS_I(inode), FI_INC_LINK);
clear_nlink(inode);
unlock_new_inode(inode);
+ make_bad_inode(inode);
iput(inode);
alloc_nid_failed(sbi, inode->i_ino);
return err;
@@ -333,6 +360,7 @@ static int f2fs_mknod(struct inode *dir, struct dentry *dentry,
struct f2fs_sb_info *sbi = F2FS_SB(sb);
struct inode *inode;
int err = 0;
+ int ilock;
if (!new_valid_dev(rdev))
return -EINVAL;
@@ -346,7 +374,9 @@ static int f2fs_mknod(struct inode *dir, struct dentry *dentry,
init_special_inode(inode, inode->i_mode, rdev);
inode->i_op = &f2fs_special_inode_operations;
+ ilock = mutex_lock_op(sbi);
err = f2fs_add_link(dentry, inode);
+ mutex_unlock_op(sbi, ilock);
if (err)
goto out;
@@ -357,6 +387,7 @@ static int f2fs_mknod(struct inode *dir, struct dentry *dentry,
out:
clear_nlink(inode);
unlock_new_inode(inode);
+ make_bad_inode(inode);
iput(inode);
alloc_nid_failed(sbi, inode->i_ino);
return err;
@@ -374,7 +405,7 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
struct f2fs_dir_entry *old_dir_entry = NULL;
struct f2fs_dir_entry *old_entry;
struct f2fs_dir_entry *new_entry;
- int err = -ENOENT;
+ int err = -ENOENT, ilock = -1;
f2fs_balance_fs(sbi);
@@ -389,7 +420,7 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
goto out_old;
}
- mutex_lock_op(sbi, RENAME);
+ ilock = mutex_lock_op(sbi);
if (new_inode) {
struct page *new_page;
@@ -412,7 +443,7 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
drop_nlink(new_inode);
if (!new_inode->i_nlink)
add_orphan_inode(sbi, new_inode->i_ino);
- f2fs_write_inode(new_inode, NULL);
+ update_inode_page(new_inode);
} else {
err = f2fs_add_link(new_dentry, old_inode);
if (err)
@@ -420,12 +451,11 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
if (old_dir_entry) {
inc_nlink(new_dir);
- f2fs_write_inode(new_dir, NULL);
+ update_inode_page(new_dir);
}
}
old_inode->i_ctime = CURRENT_TIME;
- set_inode_flag(F2FS_I(old_inode), FI_NEED_CP);
mark_inode_dirty(old_inode);
f2fs_delete_entry(old_entry, old_page, NULL);
@@ -439,10 +469,10 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
f2fs_put_page(old_dir_page, 0);
}
drop_nlink(old_dir);
- f2fs_write_inode(old_dir, NULL);
+ update_inode_page(old_dir);
}
- mutex_unlock_op(sbi, RENAME);
+ mutex_unlock_op(sbi, ilock);
return 0;
out_dir:
@@ -450,7 +480,7 @@ out_dir:
kunmap(old_dir_page);
f2fs_put_page(old_dir_page, 0);
}
- mutex_unlock_op(sbi, RENAME);
+ mutex_unlock_op(sbi, ilock);
out_old:
kunmap(old_page);
f2fs_put_page(old_page, 0);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.