From: Pavel Shilovsky Date: Wed, 19 Sep 2012 13:22:43 +0000 (-0700) Subject: CIFS: Move brlock code to ops struct X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=d39a4f710b7a7be05b6ed9d4ab8fac754c139f8a;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git CIFS: Move brlock code to ops struct Signed-off-by: Pavel Shilovsky --- diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index b2eb577b5f3f..d3c72713fec4 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -353,6 +353,14 @@ struct smb_version_operations { /* query remote filesystem */ int (*queryfs)(const unsigned int, struct cifs_tcon *, struct kstatfs *); + /* send mandatory brlock to the server */ + int (*mand_lock)(const unsigned int, struct cifsFileInfo *, __u64, + __u64, __u32, int, int, bool); + /* unlock range of mandatory locks */ + int (*mand_unlock_range)(struct cifsFileInfo *, struct file_lock *, + const unsigned int); + /* push brlocks from the cache to the server */ + int (*push_mand_locks)(struct cifsFileInfo *); }; struct smb_version_values { diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index 3b628f2af258..a7e238f88898 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -124,6 +124,9 @@ extern u64 cifs_UnixTimeToNT(struct timespec); extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time, int offset); extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock); +extern int cifs_unlock_range(struct cifsFileInfo *cfile, + struct file_lock *flock, const unsigned int xid); +extern int cifs_push_mandatory_locks(struct cifsFileInfo *cfile); extern struct cifsFileInfo *cifs_new_fileinfo(struct cifs_fid *fid, struct file *file, diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 63963730cb28..90ab83647b82 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -903,7 +903,7 @@ try_again: return rc; } -static int +int cifs_push_mandatory_locks(struct cifsFileInfo *cfile) { unsigned int xid; @@ -1111,7 +1111,7 @@ cifs_push_locks(struct cifsFileInfo *cfile) ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOPOSIXBRL) == 0)) return cifs_push_posix_locks(cfile); - return cifs_push_mandatory_locks(cfile); + return tcon->ses->server->ops->push_mand_locks(cfile); } static void @@ -1161,15 +1161,6 @@ cifs_read_flock(struct file_lock *flock, __u32 *type, int *lock, int *unlock, cFYI(1, "Unknown type of lock"); } -static int -cifs_mandatory_lock(unsigned int xid, struct cifsFileInfo *cfile, __u64 offset, - __u64 length, __u32 type, int lock, int unlock, bool wait) -{ - return CIFSSMBLock(xid, tlink_tcon(cfile->tlink), cfile->fid.netfid, - current->tgid, length, offset, unlock, lock, - (__u8)type, wait, 0); -} - static int cifs_getlk(struct file *file, struct file_lock *flock, __u32 type, bool wait_flag, bool posix_lck, unsigned int xid) @@ -1203,11 +1194,11 @@ cifs_getlk(struct file *file, struct file_lock *flock, __u32 type, return rc; /* BB we could chain these into one lock request BB */ - rc = cifs_mandatory_lock(xid, cfile, flock->fl_start, length, type, - 1, 0, false); + rc = server->ops->mand_lock(xid, cfile, flock->fl_start, length, type, + 1, 0, false); if (rc == 0) { - rc = cifs_mandatory_lock(xid, cfile, flock->fl_start, length, - type, 0, 1, false); + rc = server->ops->mand_lock(xid, cfile, flock->fl_start, length, + type, 0, 1, false); flock->fl_type = F_UNLCK; if (rc != 0) cERROR(1, "Error unlocking previously locked " @@ -1220,13 +1211,14 @@ cifs_getlk(struct file *file, struct file_lock *flock, __u32 type, return 0; } - rc = cifs_mandatory_lock(xid, cfile, flock->fl_start, length, - type | server->vals->shared_lock_type, 1, 0, - false); + type &= ~server->vals->exclusive_lock_type; + + rc = server->ops->mand_lock(xid, cfile, flock->fl_start, length, + type | server->vals->shared_lock_type, + 1, 0, false); if (rc == 0) { - rc = cifs_mandatory_lock(xid, cfile, flock->fl_start, length, - type | server->vals->shared_lock_type, - 0, 1, false); + rc = server->ops->mand_lock(xid, cfile, flock->fl_start, length, + type | server->vals->shared_lock_type, 0, 1, false); flock->fl_type = F_RDLCK; if (rc != 0) cERROR(1, "Error unlocking previously locked " @@ -1256,7 +1248,7 @@ cifs_free_llist(struct list_head *llist) } } -static int +int cifs_unlock_range(struct cifsFileInfo *cfile, struct file_lock *flock, unsigned int xid) { @@ -1408,8 +1400,8 @@ cifs_setlk(struct file *file, struct file_lock *flock, __u32 type, if (rc <= 0) goto out; - rc = cifs_mandatory_lock(xid, cfile, flock->fl_start, length, - type, 1, 0, wait_flag); + rc = server->ops->mand_lock(xid, cfile, flock->fl_start, length, + type, 1, 0, wait_flag); if (rc) { kfree(lock); goto out; @@ -1417,7 +1409,7 @@ cifs_setlk(struct file *file, struct file_lock *flock, __u32 type, cifs_lock_add(cfile, lock); } else if (unlock) - rc = cifs_unlock_range(cfile, flock, xid); + rc = server->ops->mand_unlock_range(cfile, flock, xid); out: if (flock->fl_flags & FL_POSIX) diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c index ed7f95532383..5fb0fe5f72b6 100644 --- a/fs/cifs/smb1ops.c +++ b/fs/cifs/smb1ops.c @@ -899,6 +899,15 @@ cifs_queryfs(const unsigned int xid, struct cifs_tcon *tcon, return rc; } +static int +cifs_mand_lock(const unsigned int xid, struct cifsFileInfo *cfile, __u64 offset, + __u64 length, __u32 type, int lock, int unlock, bool wait) +{ + return CIFSSMBLock(xid, tlink_tcon(cfile->tlink), cfile->fid.netfid, + current->tgid, length, offset, unlock, lock, + (__u8)type, wait, 0); +} + struct smb_version_operations smb1_operations = { .send_cancel = send_nt_cancel, .compare_fids = cifs_compare_fids, @@ -960,6 +969,9 @@ struct smb_version_operations smb1_operations = { .calc_smb_size = smbCalcSize, .oplock_response = cifs_oplock_response, .queryfs = cifs_queryfs, + .mand_lock = cifs_mand_lock, + .mand_unlock_range = cifs_unlock_range, + .push_mand_locks = cifs_push_mandatory_locks, }; struct smb_version_values smb1_values = {