Ocfs2: Teach local-mounted ocfs2 to handle unwritten_extents correctly.

[pandora-kernel.git] / fs / ocfs2 / ioctl.c

diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c
index 09de77c..312a28f 100644 (file)
--- a/fs/ocfs2/ioctl.c
+++ b/fs/ocfs2/ioctl.c
@@ -9,7 +9,6 @@
 #include <linux/mount.h>
 #include <linux/compat.h>
 
-#define MLOG_MASK_PREFIX ML_INODE
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
@@ -46,6 +45,22 @@ static inline void __o2info_set_request_error(struct ocfs2_info_request *kreq,
 #define o2info_set_request_error(a, b) \
                __o2info_set_request_error((struct ocfs2_info_request *)&(a), b)
 
+static inline void __o2info_set_request_filled(struct ocfs2_info_request *req)
+{
+       req->ir_flags |= OCFS2_INFO_FL_FILLED;
+}
+
+#define o2info_set_request_filled(a) \
+               __o2info_set_request_filled((struct ocfs2_info_request *)&(a))
+
+static inline void __o2info_clear_request_filled(struct ocfs2_info_request *req)
+{
+       req->ir_flags &= ~OCFS2_INFO_FL_FILLED;
+}
+
+#define o2info_clear_request_filled(a) \
+               __o2info_clear_request_filled((struct ocfs2_info_request *)&(a))
+
 static int ocfs2_get_inode_attr(struct inode *inode, unsigned *flags)
 {
        int status;
@@ -59,7 +74,6 @@ static int ocfs2_get_inode_attr(struct inode *inode, unsigned *flags)
        *flags = OCFS2_I(inode)->ip_attr;
        ocfs2_inode_unlock(inode, 0);
 
-       mlog_exit(status);
        return status;
 }
 
@@ -125,7 +139,6 @@ bail:
 
        brelse(bh);
 
-       mlog_exit(status);
        return status;
 }
 
@@ -139,7 +152,8 @@ int ocfs2_info_handle_blocksize(struct inode *inode,
                goto bail;
 
        oib.ib_blocksize = inode->i_sb->s_blocksize;
-       oib.ib_req.ir_flags |= OCFS2_INFO_FL_FILLED;
+
+       o2info_set_request_filled(oib);
 
        if (o2info_to_user(oib, req))
                goto bail;
@@ -163,7 +177,8 @@ int ocfs2_info_handle_clustersize(struct inode *inode,
                goto bail;
 
        oic.ic_clustersize = osb->s_clustersize;
-       oic.ic_req.ir_flags |= OCFS2_INFO_FL_FILLED;
+
+       o2info_set_request_filled(oic);
 
        if (o2info_to_user(oic, req))
                goto bail;
@@ -187,7 +202,8 @@ int ocfs2_info_handle_maxslots(struct inode *inode,
                goto bail;
 
        oim.im_max_slots = osb->max_slots;
-       oim.im_req.ir_flags |= OCFS2_INFO_FL_FILLED;
+
+       o2info_set_request_filled(oim);
 
        if (o2info_to_user(oim, req))
                goto bail;
@@ -211,7 +227,8 @@ int ocfs2_info_handle_label(struct inode *inode,
                goto bail;
 
        memcpy(oil.il_label, osb->vol_label, OCFS2_MAX_VOL_LABEL_LEN);
-       oil.il_req.ir_flags |= OCFS2_INFO_FL_FILLED;
+
+       o2info_set_request_filled(oil);
 
        if (o2info_to_user(oil, req))
                goto bail;
@@ -235,7 +252,8 @@ int ocfs2_info_handle_uuid(struct inode *inode,
                goto bail;
 
        memcpy(oiu.iu_uuid_str, osb->uuid_str, OCFS2_TEXT_UUID_LEN + 1);
-       oiu.iu_req.ir_flags |= OCFS2_INFO_FL_FILLED;
+
+       o2info_set_request_filled(oiu);
 
        if (o2info_to_user(oiu, req))
                goto bail;
@@ -261,7 +279,8 @@ int ocfs2_info_handle_fs_features(struct inode *inode,
        oif.if_compat_features = osb->s_feature_compat;
        oif.if_incompat_features = osb->s_feature_incompat;
        oif.if_ro_compat_features = osb->s_feature_ro_compat;
-       oif.if_req.ir_flags |= OCFS2_INFO_FL_FILLED;
+
+       o2info_set_request_filled(oif);
 
        if (o2info_to_user(oif, req))
                goto bail;
@@ -286,7 +305,7 @@ int ocfs2_info_handle_journal_size(struct inode *inode,
 
        oij.ij_journal_size = osb->journal->j_inode->i_size;
 
-       oij.ij_req.ir_flags |= OCFS2_INFO_FL_FILLED;
+       o2info_set_request_filled(oij);
 
        if (o2info_to_user(oij, req))
                goto bail;
@@ -308,7 +327,7 @@ int ocfs2_info_handle_unknown(struct inode *inode,
        if (o2info_from_user(oir, req))
                goto bail;
 
-       oir.ir_flags &= ~OCFS2_INFO_FL_FILLED;
+       o2info_clear_request_filled(oir);
 
        if (o2info_to_user(oir, req))
                goto bail;
@@ -523,6 +542,29 @@ long ocfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
                        return -EFAULT;
 
                return ocfs2_info_handle(inode, &info, 0);
+       case FITRIM:
+       {
+               struct super_block *sb = inode->i_sb;
+               struct fstrim_range range;
+               int ret = 0;
+
+               if (!capable(CAP_SYS_ADMIN))
+                       return -EPERM;
+
+               if (copy_from_user(&range, (struct fstrim_range *)arg,
+                   sizeof(range)))
+                       return -EFAULT;
+
+               ret = ocfs2_trim_fs(sb, &range);
+               if (ret < 0)
+                       return ret;
+
+               if (copy_to_user((struct fstrim_range *)arg, &range,
+                   sizeof(range)))
+                       return -EFAULT;
+
+               return 0;
+       }
        default:
                return -ENOTTY;
        }
@@ -550,6 +592,7 @@ long ocfs2_compat_ioctl(struct file *file, unsigned cmd, unsigned long arg)
        case OCFS2_IOC_GROUP_EXTEND:
        case OCFS2_IOC_GROUP_ADD:
        case OCFS2_IOC_GROUP_ADD64:
+       case FITRIM:
                break;
        case OCFS2_IOC_REFLINK:
                if (copy_from_user(&args, (struct reflink_arguments *)arg,