diff options
Diffstat (limited to 'module/zfs/zpl_inode.c')
| -rw-r--r-- | module/zfs/zpl_inode.c | 34 |
1 files changed, 32 insertions, 2 deletions
diff --git a/module/zfs/zpl_inode.c b/module/zfs/zpl_inode.c index c4233959b..cbdab7d30 100644 --- a/module/zfs/zpl_inode.c +++ b/module/zfs/zpl_inode.c @@ -31,6 +31,7 @@ #include <sys/dmu_objset.h> #include <sys/vfs.h> #include <sys/zpl.h> +#include <sys/file.h> static struct dentry * @@ -46,6 +47,7 @@ zpl_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags) fstrans_cookie_t cookie; pathname_t *ppn = NULL; pathname_t pn; + int zfs_flags = 0; zfs_sb_t *zsb = dentry->d_sb->s_fs_info; if (dlen(dentry) > ZFS_MAXNAMELEN) @@ -56,12 +58,13 @@ zpl_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags) /* If we are a case insensitive fs, we need the real name */ if (zsb->z_case == ZFS_CASE_INSENSITIVE) { + zfs_flags = FIGNORECASE; pn.pn_bufsize = ZFS_MAXNAMELEN; pn.pn_buf = kmem_zalloc(ZFS_MAXNAMELEN, KM_SLEEP); ppn = &pn; } - error = -zfs_lookup(dir, dname(dentry), &ip, 0, cr, NULL, ppn); + error = -zfs_lookup(dir, dname(dentry), &ip, zfs_flags, cr, NULL, ppn); spl_fstrans_unmark(cookie); ASSERT3S(error, <=, 0); crfree(cr); @@ -74,8 +77,17 @@ zpl_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags) spin_unlock(&dentry->d_lock); if (error) { - if (ppn) + /* + * If we have a case sensitive fs, we do not want to + * insert negative entries, so return NULL for ENOENT. + * Fall through if the error is not ENOENT. Also free memory. + */ + if (ppn) { kmem_free(pn.pn_buf, ZFS_MAXNAMELEN); + if (error == -ENOENT) + return (NULL); + } + if (error == -ENOENT) return (d_splice_alias(NULL, dentry)); else @@ -205,10 +217,19 @@ zpl_unlink(struct inode *dir, struct dentry *dentry) cred_t *cr = CRED(); int error; fstrans_cookie_t cookie; + zfs_sb_t *zsb = dentry->d_sb->s_fs_info; crhold(cr); cookie = spl_fstrans_mark(); error = -zfs_remove(dir, dname(dentry), cr); + + /* + * For a CI FS we must invalidate the dentry to prevent the + * creation of negative entries. + */ + if (error == 0 && zsb->z_case == ZFS_CASE_INSENSITIVE) + d_invalidate(dentry); + spl_fstrans_unmark(cookie); crfree(cr); ASSERT3S(error, <=, 0); @@ -256,10 +277,19 @@ zpl_rmdir(struct inode * dir, struct dentry *dentry) cred_t *cr = CRED(); int error; fstrans_cookie_t cookie; + zfs_sb_t *zsb = dentry->d_sb->s_fs_info; crhold(cr); cookie = spl_fstrans_mark(); error = -zfs_rmdir(dir, dname(dentry), NULL, cr, 0); + + /* + * For a CI FS we must invalidate the dentry to prevent the + * creation of negative entries. + */ + if (error == 0 && zsb->z_case == ZFS_CASE_INSENSITIVE) + d_invalidate(dentry); + spl_fstrans_unmark(cookie); crfree(cr); ASSERT3S(error, <=, 0); |