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bcachefs: Switch to .iterate_shared for readdir

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We definitely don't need an exclusive inode lock for readdir.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2019-10-11 15:14:36 -04:00 committed by Kent Overstreet
parent 05240ba6b8
commit 821a99b7ba
1 changed files with 13 additions and 32 deletions
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45
fs/bcachefs/fs.c
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@ -367,12 +367,12 @@ static struct dentry *bch2_lookup(struct inode *vdir, struct dentry *dentry,
return d_splice_alias(vinode, dentry);
}
static int bch2_create(struct mnt_idmap *idmap,
struct inode *vdir, struct dentry *dentry,
umode_t mode, bool excl)
static int bch2_mknod(struct mnt_idmap *idmap,
struct inode *vdir, struct dentry *dentry,
umode_t mode, dev_t rdev)
{
struct bch_inode_info *inode =
__bch2_create(idmap, to_bch_ei(vdir), dentry, mode|S_IFREG, 0, false);
__bch2_create(idmap, to_bch_ei(vdir), dentry, mode, rdev, false);
if (IS_ERR(inode))
return PTR_ERR(inode);
@ -381,6 +381,13 @@ static int bch2_create(struct mnt_idmap *idmap,
return 0;
}
static int bch2_create(struct mnt_idmap *idmap,
struct inode *vdir, struct dentry *dentry,
umode_t mode, bool excl)
{
return bch2_mknod(idmap, vdir, dentry, mode|S_IFREG, 0);
}
static int __bch2_link(struct bch_fs *c,
struct bch_inode_info *inode,
struct bch_inode_info *dir,
@ -512,33 +519,7 @@ err:
static int bch2_mkdir(struct mnt_idmap *idmap,
struct inode *vdir, struct dentry *dentry, umode_t mode)
{
struct bch_inode_info *inode =
__bch2_create(idmap, to_bch_ei(vdir), dentry, mode|S_IFDIR, 0, false);
if (IS_ERR(inode))
return PTR_ERR(inode);
d_instantiate(dentry, &inode->v);
return 0;
}
static int bch2_rmdir(struct inode *vdir, struct dentry *dentry)
{
return bch2_unlink(vdir, dentry);
}
static int bch2_mknod(struct mnt_idmap *idmap,
struct inode *vdir, struct dentry *dentry,
umode_t mode, dev_t rdev)
{
struct bch_inode_info *inode =
__bch2_create(idmap, to_bch_ei(vdir), dentry, mode, rdev, false);
if (IS_ERR(inode))
return PTR_ERR(inode);
d_instantiate(dentry, &inode->v);
return 0;
return bch2_mknod(idmap, vdir, dentry, mode|S_IFDIR, 0);
}
static int bch2_rename2(struct mnt_idmap *idmap,
@ -1034,7 +1015,7 @@ static const struct inode_operations bch_dir_inode_operations = {
.unlink = bch2_unlink,
.symlink = bch2_symlink,
.mkdir = bch2_mkdir,
.rmdir = bch2_rmdir,
.rmdir = bch2_unlink,
.mknod = bch2_mknod,
.rename = bch2_rename2,
.getattr = bch2_getattr,