diff options
Diffstat (limited to 'fs/ext2')
| -rw-r--r-- | fs/ext2/Makefile | 2 | ||||
| -rw-r--r-- | fs/ext2/dir.c | 2 | ||||
| -rw-r--r-- | fs/ext2/ext2.h | 3 | ||||
| -rw-r--r-- | fs/ext2/file.c | 4 | ||||
| -rw-r--r-- | fs/ext2/fsync.c | 50 | ||||
| -rw-r--r-- | fs/ext2/inode.c | 11 | ||||
| -rw-r--r-- | fs/ext2/super.c | 61 |
7 files changed, 50 insertions, 83 deletions
diff --git a/fs/ext2/Makefile b/fs/ext2/Makefile index e0b2b43..f42af45 100644 --- a/fs/ext2/Makefile +++ b/fs/ext2/Makefile @@ -4,7 +4,7 @@ obj-$(CONFIG_EXT2_FS) += ext2.o -ext2-y := balloc.o dir.o file.o fsync.o ialloc.o inode.o \ +ext2-y := balloc.o dir.o file.o ialloc.o inode.o \ ioctl.o namei.o super.o symlink.o ext2-$(CONFIG_EXT2_FS_XATTR) += xattr.o xattr_user.o xattr_trusted.o diff --git a/fs/ext2/dir.c b/fs/ext2/dir.c index 2999d72..0035004 100644 --- a/fs/ext2/dir.c +++ b/fs/ext2/dir.c @@ -720,5 +720,5 @@ const struct file_operations ext2_dir_operations = { #ifdef CONFIG_COMPAT .compat_ioctl = ext2_compat_ioctl, #endif - .fsync = ext2_sync_file, + .fsync = simple_fsync, }; diff --git a/fs/ext2/ext2.h b/fs/ext2/ext2.h index 3203042..b2bbf45 100644 --- a/fs/ext2/ext2.h +++ b/fs/ext2/ext2.h @@ -113,9 +113,6 @@ extern int ext2_empty_dir (struct inode *); extern struct ext2_dir_entry_2 * ext2_dotdot (struct inode *, struct page **); extern void ext2_set_link(struct inode *, struct ext2_dir_entry_2 *, struct page *, struct inode *); -/* fsync.c */ -extern int ext2_sync_file (struct file *, struct dentry *, int); - /* ialloc.c */ extern struct inode * ext2_new_inode (struct inode *, int); extern void ext2_free_inode (struct inode *); diff --git a/fs/ext2/file.c b/fs/ext2/file.c index 45ed071..2b9e47d 100644 --- a/fs/ext2/file.c +++ b/fs/ext2/file.c @@ -55,7 +55,7 @@ const struct file_operations ext2_file_operations = { .mmap = generic_file_mmap, .open = generic_file_open, .release = ext2_release_file, - .fsync = ext2_sync_file, + .fsync = simple_fsync, .splice_read = generic_file_splice_read, .splice_write = generic_file_splice_write, }; @@ -72,7 +72,7 @@ const struct file_operations ext2_xip_file_operations = { .mmap = xip_file_mmap, .open = generic_file_open, .release = ext2_release_file, - .fsync = ext2_sync_file, + .fsync = simple_fsync, }; #endif diff --git a/fs/ext2/fsync.c b/fs/ext2/fsync.c deleted file mode 100644 index fc66c93..0000000 --- a/fs/ext2/fsync.c +++ /dev/null @@ -1,50 +0,0 @@ -/* - * linux/fs/ext2/fsync.c - * - * Copyright (C) 1993 Stephen Tweedie (sct@dcs.ed.ac.uk) - * from - * Copyright (C) 1992 Remy Card (card@masi.ibp.fr) - * Laboratoire MASI - Institut Blaise Pascal - * Universite Pierre et Marie Curie (Paris VI) - * from - * linux/fs/minix/truncate.c Copyright (C) 1991, 1992 Linus Torvalds - * - * ext2fs fsync primitive - * - * Big-endian to little-endian byte-swapping/bitmaps by - * David S. Miller (davem@caip.rutgers.edu), 1995 - * - * Removed unnecessary code duplication for little endian machines - * and excessive __inline__s. - * Andi Kleen, 1997 - * - * Major simplications and cleanup - we only need to do the metadata, because - * we can depend on generic_block_fdatasync() to sync the data blocks. - */ - -#include "ext2.h" -#include <linux/buffer_head.h> /* for sync_mapping_buffers() */ - - -/* - * File may be NULL when we are called. Perhaps we shouldn't - * even pass file to fsync ? - */ - -int ext2_sync_file(struct file *file, struct dentry *dentry, int datasync) -{ - struct inode *inode = dentry->d_inode; - int err; - int ret; - - ret = sync_mapping_buffers(inode->i_mapping); - if (!(inode->i_state & I_DIRTY)) - return ret; - if (datasync && !(inode->i_state & I_DIRTY_DATASYNC)) - return ret; - - err = ext2_sync_inode(inode); - if (ret == 0) - ret = err; - return ret; -} diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c index acf6788..29ed682 100644 --- a/fs/ext2/inode.c +++ b/fs/ext2/inode.c @@ -41,8 +41,6 @@ MODULE_AUTHOR("Remy Card and others"); MODULE_DESCRIPTION("Second Extended Filesystem"); MODULE_LICENSE("GPL"); -static int ext2_update_inode(struct inode * inode, int do_sync); - /* * Test whether an inode is a fast symlink. */ @@ -66,7 +64,7 @@ void ext2_delete_inode (struct inode * inode) goto no_delete; EXT2_I(inode)->i_dtime = get_seconds(); mark_inode_dirty(inode); - ext2_update_inode(inode, inode_needs_sync(inode)); + ext2_write_inode(inode, inode_needs_sync(inode)); inode->i_size = 0; if (inode->i_blocks) @@ -1337,7 +1335,7 @@ bad_inode: return ERR_PTR(ret); } -static int ext2_update_inode(struct inode * inode, int do_sync) +int ext2_write_inode(struct inode *inode, int do_sync) { struct ext2_inode_info *ei = EXT2_I(inode); struct super_block *sb = inode->i_sb; @@ -1442,11 +1440,6 @@ static int ext2_update_inode(struct inode * inode, int do_sync) return err; } -int ext2_write_inode(struct inode *inode, int wait) -{ - return ext2_update_inode(inode, wait); -} - int ext2_sync_inode(struct inode *inode) { struct writeback_control wbc = { diff --git a/fs/ext2/super.c b/fs/ext2/super.c index 5c4afe6..4589996 100644 --- a/fs/ext2/super.c +++ b/fs/ext2/super.c @@ -42,6 +42,7 @@ static void ext2_sync_super(struct super_block *sb, struct ext2_super_block *es); static int ext2_remount (struct super_block * sb, int * flags, char * data); static int ext2_statfs (struct dentry * dentry, struct kstatfs * buf); +static int ext2_sync_fs(struct super_block *sb, int wait); void ext2_error (struct super_block * sb, const char * function, const char * fmt, ...) @@ -114,6 +115,11 @@ static void ext2_put_super (struct super_block * sb) int i; struct ext2_sb_info *sbi = EXT2_SB(sb); + lock_kernel(); + + if (sb->s_dirt) + ext2_write_super(sb); + ext2_xattr_put_super(sb); if (!(sb->s_flags & MS_RDONLY)) { struct ext2_super_block *es = sbi->s_es; @@ -135,7 +141,7 @@ static void ext2_put_super (struct super_block * sb) kfree(sbi->s_blockgroup_lock); kfree(sbi); - return; + unlock_kernel(); } static struct kmem_cache * ext2_inode_cachep; @@ -304,6 +310,7 @@ static const struct super_operations ext2_sops = { .delete_inode = ext2_delete_inode, .put_super = ext2_put_super, .write_super = ext2_write_super, + .sync_fs = ext2_sync_fs, .statfs = ext2_statfs, .remount_fs = ext2_remount, .clear_inode = ext2_clear_inode, @@ -1093,6 +1100,7 @@ failed_mount: brelse(bh); failed_sbi: sb->s_fs_info = NULL; + kfree(sbi->s_blockgroup_lock); kfree(sbi); return ret; } @@ -1126,25 +1134,36 @@ static void ext2_sync_super(struct super_block *sb, struct ext2_super_block *es) * set s_state to EXT2_VALID_FS after some corrections. */ -void ext2_write_super (struct super_block * sb) +static int ext2_sync_fs(struct super_block *sb, int wait) { - struct ext2_super_block * es; + struct ext2_super_block *es = EXT2_SB(sb)->s_es; + lock_kernel(); - if (!(sb->s_flags & MS_RDONLY)) { - es = EXT2_SB(sb)->s_es; - - if (es->s_state & cpu_to_le16(EXT2_VALID_FS)) { - ext2_debug ("setting valid to 0\n"); - es->s_state &= cpu_to_le16(~EXT2_VALID_FS); - es->s_free_blocks_count = cpu_to_le32(ext2_count_free_blocks(sb)); - es->s_free_inodes_count = cpu_to_le32(ext2_count_free_inodes(sb)); - es->s_mtime = cpu_to_le32(get_seconds()); - ext2_sync_super(sb, es); - } else - ext2_commit_super (sb, es); + if (es->s_state & cpu_to_le16(EXT2_VALID_FS)) { + ext2_debug("setting valid to 0\n"); + es->s_state &= cpu_to_le16(~EXT2_VALID_FS); + es->s_free_blocks_count = + cpu_to_le32(ext2_count_free_blocks(sb)); + es->s_free_inodes_count = + cpu_to_le32(ext2_count_free_inodes(sb)); + es->s_mtime = cpu_to_le32(get_seconds()); + ext2_sync_super(sb, es); + } else { + ext2_commit_super(sb, es); } sb->s_dirt = 0; unlock_kernel(); + + return 0; +} + + +void ext2_write_super(struct super_block *sb) +{ + if (!(sb->s_flags & MS_RDONLY)) + ext2_sync_fs(sb, 1); + else + sb->s_dirt = 0; } static int ext2_remount (struct super_block * sb, int * flags, char * data) @@ -1156,6 +1175,8 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data) unsigned long old_sb_flags; int err; + lock_kernel(); + /* Store the old options */ old_sb_flags = sb->s_flags; old_opts.s_mount_opt = sbi->s_mount_opt; @@ -1191,12 +1212,16 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data) sbi->s_mount_opt &= ~EXT2_MOUNT_XIP; sbi->s_mount_opt |= old_mount_opt & EXT2_MOUNT_XIP; } - if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) + if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) { + unlock_kernel(); return 0; + } if (*flags & MS_RDONLY) { if (le16_to_cpu(es->s_state) & EXT2_VALID_FS || - !(sbi->s_mount_state & EXT2_VALID_FS)) + !(sbi->s_mount_state & EXT2_VALID_FS)) { + unlock_kernel(); return 0; + } /* * OK, we are remounting a valid rw partition rdonly, so set * the rdonly flag and then mark the partition as valid again. @@ -1223,12 +1248,14 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data) sb->s_flags &= ~MS_RDONLY; } ext2_sync_super(sb, es); + unlock_kernel(); return 0; restore_opts: sbi->s_mount_opt = old_opts.s_mount_opt; sbi->s_resuid = old_opts.s_resuid; sbi->s_resgid = old_opts.s_resgid; sb->s_flags = old_sb_flags; + unlock_kernel(); return err; } |