diff --git a/fs/sdcardfs/dentry.c b/fs/sdcardfs/dentry.c index 3795d2c26915..eb279de02ffb 100644 --- a/fs/sdcardfs/dentry.c +++ b/fs/sdcardfs/dentry.c @@ -123,6 +123,12 @@ out: return err; } +/* 1 = delete, 0 = cache */ +static int sdcardfs_d_delete(const struct dentry *d) +{ + return SDCARDFS_SB(d->d_sb)->options.nocache ? 1 : 0; +} + static void sdcardfs_d_release(struct dentry *dentry) { if (!dentry || !dentry->d_fsdata) @@ -182,6 +188,7 @@ static void sdcardfs_canonical_path(const struct path *path, const struct dentry_operations sdcardfs_ci_dops = { .d_revalidate = sdcardfs_d_revalidate, + .d_delete = sdcardfs_d_delete, .d_release = sdcardfs_d_release, .d_hash = sdcardfs_hash_ci, .d_compare = sdcardfs_cmp_ci, diff --git a/fs/sdcardfs/main.c b/fs/sdcardfs/main.c index 27ec726e7a46..ba52af8644cc 100644 --- a/fs/sdcardfs/main.c +++ b/fs/sdcardfs/main.c @@ -34,6 +34,7 @@ enum { Opt_reserved_mb, Opt_gid_derivation, Opt_default_normal, + Opt_nocache, Opt_err, }; @@ -48,6 +49,7 @@ static const match_table_t sdcardfs_tokens = { {Opt_gid_derivation, "derive_gid"}, {Opt_default_normal, "default_normal"}, {Opt_reserved_mb, "reserved_mb=%u"}, + {Opt_nocache, "nocache"}, {Opt_err, NULL} }; @@ -71,6 +73,7 @@ static int parse_options(struct super_block *sb, char *options, int silent, /* by default, gid derivation is off */ opts->gid_derivation = false; opts->default_normal = false; + opts->nocache = false; *debug = 0; @@ -128,6 +131,9 @@ static int parse_options(struct super_block *sb, char *options, int silent, case Opt_default_normal: opts->default_normal = true; break; + case Opt_nocache: + opts->nocache = true; + break; /* unknown option */ default: if (!silent) diff --git a/fs/sdcardfs/sdcardfs.h b/fs/sdcardfs/sdcardfs.h index 99227a07a8d6..57be4761d32b 100644 --- a/fs/sdcardfs/sdcardfs.h +++ b/fs/sdcardfs/sdcardfs.h @@ -198,6 +198,7 @@ struct sdcardfs_mount_options { bool gid_derivation; bool default_normal; unsigned int reserved_mb; + bool nocache; }; struct sdcardfs_vfsmount_options { diff --git a/fs/sdcardfs/super.c b/fs/sdcardfs/super.c index cffcdb11cb8a..140696ed3ed3 100644 --- a/fs/sdcardfs/super.c +++ b/fs/sdcardfs/super.c @@ -311,6 +311,8 @@ static int sdcardfs_show_options(struct vfsmount *mnt, struct seq_file *m, seq_puts(m, ",default_normal"); if (opts->reserved_mb != 0) seq_printf(m, ",reserved=%uMB", opts->reserved_mb); + if (opts->nocache) + seq_printf(m, ",nocache"); return 0; };