-Index: linux-2.6.18.i386/fs/ext4/ialloc.c
-===================================================================
---- linux-2.6.18.i386.orig/fs/ext4/ialloc.c
-+++ linux-2.6.18.i386/fs/ext4/ialloc.c
-@@ -622,12 +622,15 @@ struct inode *ext4_new_inode(handle_t *h
+diff -rupN linux-2.6.18-164.6.1_1//fs/ext4/ialloc.c linux-2.6.18-164.6.1_2//fs/ext4/ialloc.c
+--- linux-2.6.18-164.6.1_1//fs/ext4/ialloc.c 2010-03-31 17:42:50.000000000 +0530
++++ linux-2.6.18-164.6.1_2//fs/ext4/ialloc.c 2010-03-31 17:43:22.000000000 +0530
+@@ -622,11 +622,14 @@ struct inode *ext4_new_inode_goal(handle
sb = dir->i_sb;
- trace_mark(ext4_request_inode, "dev %s dir %lu mode %d", sb->s_id,
- dir->i_ino, mode);
+ trace_mark(ext4_request_inode, "dev %s dir %lu mode %d", sb->s_id,
+ dir->i_ino, mode);
+ sbi = EXT4_SB(sb);
+ if (sbi->s_max_dir_size > 0 && i_size_read(dir) >= sbi->s_max_dir_size)
+ return ERR_PTR(-EFBIG);
if (!inode)
return ERR_PTR(-ENOMEM);
ei = EXT4_I(inode);
-
- sbi = EXT4_SB(sb);
- es = sbi->s_es;
- if (goal) {
-Index: linux-2.6.18.i386/fs/ext4/super.c
-===================================================================
---- linux-2.6.18.i386.orig/fs/ext4/super.c
-+++ linux-2.6.18.i386/fs/ext4/super.c
-@@ -38,6 +38,7 @@
- #include <asm/uaccess.h>
- #include <linux/kthread.h>
- #include <linux/utsname.h>
-+#include <linux/proc_fs.h>
+ if (goal)
+ goal = sbi->s_inode_goal;
+diff -rupN linux-2.6.18-164.6.1_1//fs/ext4/super.c linux-2.6.18-164.6.1_2//fs/ext4/super.c
+--- linux-2.6.18-164.6.1_1//fs/ext4/super.c 2010-03-31 17:42:50.000000000 +0530
++++ linux-2.6.18-164.6.1_2//fs/ext4/super.c 2010-03-31 17:45:32.000000000 +0530
+@@ -40,6 +40,7 @@
+ EXT4_RW_ATTR_SBI_UI(mb_order2_req, s_mb_order2_reqs);
+ EXT4_RW_ATTR_SBI_UI(mb_stream_req, s_mb_stream_request);
+ EXT4_RW_ATTR_SBI_UI(mb_group_prealloc, s_mb_group_prealloc);
++EXT4_RW_ATTR_SBI_UI(max_dir_size, s_max_dir_size);
- #include "ext4.h"
- #include "ext4_jbd2.h"
-@@ -551,6 +554,7 @@ static void ext4_put_super(struct super_
- ext4_commit_super(sb, es, 1);
- }
- if (sbi->s_proc) {
-+ remove_proc_entry(EXT4_MAX_DIR_SIZE_NAME, sbi->s_proc);
- remove_proc_entry("inode_readahead_blks", sbi->s_proc);
- remove_proc_entry(sb->s_id, ext4_proc_root);
- }
-@@ -2185,6 +2191,48 @@ static unsigned long ext4_get_stripe_siz
- return 0;
- }
+ static struct attribute *ext4_attrs[] = {
+ ATTR_LIST(delayed_allocation_blocks),
+@@ -48,6 +48,7 @@
+ ATTR_LIST(mb_order2_req),
+ ATTR_LIST(mb_stream_req),
+ ATTR_LIST(mb_group_prealloc),
++ ATTR_LIST(max_dir_size),
+ NULL,
+ };
-+#ifdef CONFIG_PROC_FS
-+static int ext4_max_dir_size_read(char *page, char **start, off_t off,
-+ int count, int *eof, void *data)
-+{
-+ struct ext4_sb_info *sbi = data;
-+ int len;
-+
-+ *eof = 1;
-+ if (off != 0)
-+ return 0;
-+
-+ len = sprintf(page, "%lu\n", sbi->s_max_dir_size);
-+ *start = page;
-+ return len;
-+}
-+
-+static int ext4_max_dir_size_write(struct file *file, const char *buffer,
-+ unsigned long count, void *data)
-+{
-+ struct ext4_sb_info *sbi = data;
-+ char str[32];
-+ unsigned long value;
-+ char *end;
-+
-+ if (count >= sizeof(str)) {
-+ printk(KERN_ERR "EXT4-fs: %s string too long, max %u bytes\n",
-+ EXT4_MAX_DIR_SIZE_NAME, (int)sizeof(str));
-+ return -EOVERFLOW;
-+ }
-+
-+ if (copy_from_user(str, buffer, count))
-+ return -EFAULT;
-+
-+ value = simple_strtol(str, &end, 0);
-+ if (value < 0)
-+ return -ERANGE;
-+
-+ sbi->s_max_dir_size = value;
-+ return count;
-+}
-+#endif
-+
- static int ext4_fill_super(struct super_block *sb, void *data, int silent)
- __releases(kernel_lock)
- __acquires(kernel_lock)
-@@ -2743,6 +2790,20 @@ static int ext4_fill_super(struct super_
- p->proc_fops = &ext4_ui_proc_fops,
- p->data = &sbi->s_inode_goal;
- }
-+ sbi->s_max_dir_size = EXT4_DEFAULT_MAX_DIR_SIZE;
-+ p = create_proc_entry(EXT4_MAX_DIR_SIZE_NAME,
-+ S_IFREG | S_IRUGO | S_IWUSR, sbi->s_proc);
-+ if (p == NULL) {
-+ printk(KERN_ERR "EXT4-fs: unable to create %s\n",
-+ EXT4_MAX_DIR_SIZE_NAME);
-+ remove_proc_entry(EXT4_MAX_DIR_SIZE_NAME, sbi->s_proc);
-+ ret = -ENOMEM;
-+ goto failed_mount;
-+ }
-+ p->data = sbi;
-+ p->read_proc = ext4_max_dir_size_read;
-+ p->write_proc = ext4_max_dir_size_write;
-+
- }
- #endif
-
-Index: linux-2.6.18.i386/fs/ext4/ext4_sb.h
-===================================================================
---- linux-2.6.18.i386.orig/fs/ext4/ext4_sb.h
-+++ linux-2.6.18.i386/fs/ext4/ext4_sb.h
-@@ -117,6 +117,7 @@ struct ext4_sb_info {
+diff -rupN linux-2.6.18-164.6.1_1//fs/ext4/ext4_sb.h linux-2.6.18-164.6.1_2//fs/ext4/ext4_sb.h
+--- linux-2.6.18-164.6.1_1//fs/ext4/ext4.h 2010-03-31 17:42:50.000000000 +0530
++++ linux-2.6.18-164.6.1_2//fs/ext4/ext4.h 2010-03-31 17:43:22.000000000 +0530
+@@ -119,6 +119,7 @@ struct ext4_sb_info {
/* where last allocation was done - for stream allocation */
unsigned long s_mb_last_group;
unsigned long s_mb_last_start;
/* history to debug policy */
struct ext4_mb_history *s_mb_history;
-Index: linux-2.6.18.i386/fs/ext4/ext4.h
-===================================================================
---- linux-2.6.18.i386.orig/fs/ext4/ext4.h
-+++ linux-2.6.18.i386/fs/ext4/ext4.h
-@@ -992,6 +992,12 @@ struct mmp_struct {
- */
- #define EXT4_MMP_MIN_CHECK_INTERVAL 5
-
-+/*
-+ * max directory size tunable
-+ */
-+#define EXT4_DEFAULT_MAX_DIR_SIZE 0
-+#define EXT4_MAX_DIR_SIZE_NAME "max_dir_size"
-+
- /*
- * Function prototypes
- */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff