Author: nbd Date: 2015-04-25 12:47:18 +0200 (Sat, 25 Apr 2015) New Revision: 45580
Added: trunk/target/linux/generic/patches-3.18/111-jffs2-add-RENAME_EXCHANGE-support.patch trunk/target/linux/generic/patches-4.0/111-jffs2-add-RENAME_EXCHANGE-support.patch Log: kernel: implement RENAME_EXCHANGE support for jffs2 - overlayfs requires it Signed-off-by: Felix Fietkau <[email protected]> Added: trunk/target/linux/generic/patches-3.18/111-jffs2-add-RENAME_EXCHANGE-support.patch =================================================================== --- trunk/target/linux/generic/patches-3.18/111-jffs2-add-RENAME_EXCHANGE-support.patch (rev 0) +++ trunk/target/linux/generic/patches-3.18/111-jffs2-add-RENAME_EXCHANGE-support.patch 2015-04-25 10:47:18 UTC (rev 45580) @@ -0,0 +1,58 @@ +From: Felix Fietkau <[email protected]> +Date: Sat, 25 Apr 2015 12:41:32 +0200 +Subject: [PATCH] jffs2: add RENAME_EXCHANGE support + +Signed-off-by: Felix Fietkau <[email protected]> +--- + +--- a/fs/jffs2/dir.c ++++ b/fs/jffs2/dir.c +@@ -784,7 +784,7 @@ static int jffs2_rename (struct inode *o + uint8_t type; + uint32_t now; + +- if (flags & ~RENAME_WHITEOUT) ++ if (flags & ~(RENAME_WHITEOUT | RENAME_EXCHANGE)) + return -EINVAL; + + /* The VFS will check for us and prevent trying to rename a +@@ -792,7 +792,7 @@ static int jffs2_rename (struct inode *o + * the VFS can't check whether the victim is empty. The filesystem + * needs to do that for itself. + */ +- if (new_dentry->d_inode) { ++ if (new_dentry->d_inode && !(flags & RENAME_EXCHANGE)) { + victim_f = JFFS2_INODE_INFO(new_dentry->d_inode); + if (S_ISDIR(new_dentry->d_inode->i_mode)) { + struct jffs2_full_dirent *fd; +@@ -827,7 +827,7 @@ static int jffs2_rename (struct inode *o + if (ret) + return ret; + +- if (victim_f) { ++ if (victim_f && !(flags & RENAME_EXCHANGE)) { + /* There was a victim. Kill it off nicely */ + if (S_ISDIR(new_dentry->d_inode->i_mode)) + clear_nlink(new_dentry->d_inode); +@@ -853,6 +853,12 @@ static int jffs2_rename (struct inode *o + if (flags & RENAME_WHITEOUT) + /* Replace with whiteout */ + ret = jffs2_whiteout(old_dir_i, old_dentry); ++ else if (flags & RENAME_EXCHANGE) ++ /* Replace the original */ ++ ret = jffs2_do_link(c, JFFS2_INODE_INFO(old_dir_i), ++ new_dentry->d_inode->i_ino, type, ++ old_dentry->d_name.name, old_dentry->d_name.len, ++ now); + else + /* Unlink the original */ + ret = jffs2_do_unlink(c, JFFS2_INODE_INFO(old_dir_i), +@@ -879,7 +885,7 @@ static int jffs2_rename (struct inode *o + return ret; + } + +- if (S_ISDIR(old_dentry->d_inode->i_mode)) ++ if (S_ISDIR(old_dentry->d_inode->i_mode) && !(flags & RENAME_EXCHANGE)) + drop_nlink(old_dir_i); + + new_dir_i->i_mtime = new_dir_i->i_ctime = old_dir_i->i_mtime = old_dir_i->i_ctime = ITIME(now); Added: trunk/target/linux/generic/patches-4.0/111-jffs2-add-RENAME_EXCHANGE-support.patch =================================================================== --- trunk/target/linux/generic/patches-4.0/111-jffs2-add-RENAME_EXCHANGE-support.patch (rev 0) +++ trunk/target/linux/generic/patches-4.0/111-jffs2-add-RENAME_EXCHANGE-support.patch 2015-04-25 10:47:18 UTC (rev 45580) @@ -0,0 +1,58 @@ +From: Felix Fietkau <[email protected]> +Date: Sat, 25 Apr 2015 12:41:32 +0200 +Subject: [PATCH] jffs2: add RENAME_EXCHANGE support + +Signed-off-by: Felix Fietkau <[email protected]> +--- + +--- a/fs/jffs2/dir.c ++++ b/fs/jffs2/dir.c +@@ -784,7 +784,7 @@ static int jffs2_rename (struct inode *o + uint8_t type; + uint32_t now; + +- if (flags & ~RENAME_WHITEOUT) ++ if (flags & ~(RENAME_WHITEOUT | RENAME_EXCHANGE)) + return -EINVAL; + + /* The VFS will check for us and prevent trying to rename a +@@ -792,7 +792,7 @@ static int jffs2_rename (struct inode *o + * the VFS can't check whether the victim is empty. The filesystem + * needs to do that for itself. + */ +- if (new_dentry->d_inode) { ++ if (new_dentry->d_inode && !(flags & RENAME_EXCHANGE)) { + victim_f = JFFS2_INODE_INFO(new_dentry->d_inode); + if (d_is_dir(new_dentry)) { + struct jffs2_full_dirent *fd; +@@ -827,7 +827,7 @@ static int jffs2_rename (struct inode *o + if (ret) + return ret; + +- if (victim_f) { ++ if (victim_f && !(flags & RENAME_EXCHANGE)) { + /* There was a victim. Kill it off nicely */ + if (d_is_dir(new_dentry)) + clear_nlink(new_dentry->d_inode); +@@ -853,6 +853,12 @@ static int jffs2_rename (struct inode *o + if (flags & RENAME_WHITEOUT) + /* Replace with whiteout */ + ret = jffs2_whiteout(old_dir_i, old_dentry); ++ else if (flags & RENAME_EXCHANGE) ++ /* Replace the original */ ++ ret = jffs2_do_link(c, JFFS2_INODE_INFO(old_dir_i), ++ new_dentry->d_inode->i_ino, type, ++ old_dentry->d_name.name, old_dentry->d_name.len, ++ now); + else + /* Unlink the original */ + ret = jffs2_do_unlink(c, JFFS2_INODE_INFO(old_dir_i), +@@ -879,7 +885,7 @@ static int jffs2_rename (struct inode *o + return ret; + } + +- if (d_is_dir(old_dentry)) ++ if (d_is_dir(old_dentry) && !(flags & RENAME_EXCHANGE)) + drop_nlink(old_dir_i); + + new_dir_i->i_mtime = new_dir_i->i_ctime = old_dir_i->i_mtime = old_dir_i->i_ctime = ITIME(now); _______________________________________________ openwrt-commits mailing list [email protected] https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-commits
