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affs: introduce VFS superblock object back-reference

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Add an 'sb' VFS superblock back-reference to the 'struct affs_sb_info' data
structure - we will need to find the VFS superblock from a 'struct
affs_sb_info' object in the next patch, so this change is jut a preparation.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Artem Bityutskiy 2012-06-06 18:56:56 +03:00 committed by Al Viro
parent a837107439
commit a215fef7ed
2 changed files with 2 additions and 0 deletions
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1
fs/affs/affs.h
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@ -100,6 +100,7 @@ struct affs_sb_info {
char *s_prefix; /* Prefix for volumes and assigns. */
char s_volume[32]; /* Volume prefix for absolute symlinks. */
spinlock_t symlink_lock; /* protects the previous two */
struct super_block *sb; /* the VFS superblock object */
};
#define SF_INTL 0x0001 /* International filesystem. */

1
fs/affs/super.c
View file

@ -299,6 +299,7 @@ static int affs_fill_super(struct super_block *sb, void *data, int silent)
return -ENOMEM;
sb->s_fs_info = sbi;
sbi->sb = sb;
mutex_init(&sbi->s_bmlock);
spin_lock_init(&sbi->symlink_lock);